JPH0733111U - Tie - Google Patents

Abstract

(57) [Summary] (Correction) [Purpose] The number of parts is small, and assembly and string insertion work are facilitated. A male member 12 having a string passing hole 24 penetrating the side surface, and a string passing hole 16 having a hollow portion into which the male member 12 is inserted and communicating with the string passing hole 24 of the male member 12 are provided on the side surface. It has the formed female member 10 and the elastic member 32 which urges the male member 12 in the female member 10 in the protruding direction. Male member 1
2. A column portion 28 projecting from 2 and attached with an elastic member 32
And an engaging piece 30 formed at the tip of the column 28 with which one end of the elastic member 32 engages, and an engaging piece 30 formed on the bottom surface of the female member 10 as the male member 12 is pushed. And an engagement releasing portion for releasing the engagement.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cord fastener that can arbitrarily adjust the length of a cord attached to clothes, bags, and the like.

[0002]

[Prior art]

 Conventionally, as disclosed in, for example, US Pat. No. 5,197,166, a substantially cylindrical male member having a string passing hole penetrating the side surface and this male member are inserted and communicate with the string passing hole of the male member. A female member having a string through hole formed on its side surface, and a coil spring fitted to the male member and inserted into the female member to bias the male member in the projecting direction in the female member. There is something. Further, the cord fastener has a retaining ring that engages with the locking portion at the tip of the male member when the male member is inserted into the female member and holds the coil spring in the male member in a compressed state. Have The male member is formed in a bifurcated shape toward the locking portion of the tip end portion, and the bottom portion of the female member is formed with a recess into which the tip end portion of the male member can be fitted.

In the method of using the string fastener, the holding member holds the coil spring in a compressed state on the male member, the male member is inserted into the female member, and the string is inserted into each string insertion hole. After that, the male member is pushed further into the female member, so that the bifurcated distal end portions of the male member are fitted in the recesses of the female member bottom portion while being moved toward each other by the retaining ring. As a result, the locking part at the tip of the male member is released from the engagement with the retaining ring, and in this state, when the pressing of the male member is released, the locking part passes through the inside of the retaining ring and protrudes in the protruding direction. Move to. Then, the male member is biased by the coil spring in a direction projecting from the female member, and the string inserted into each string passing hole is clamped by the string passing holes of the male member and the female member to securely hold the string. Is.

[0004]

[Problems to be solved by the device]

 In the case of the above conventional technique, there is a problem that a holding ring for holding the coil spring on the male member is required, the number of parts is increased, and the cost is increased. In addition, when passing the string through the string tightening tool, the retaining ring must be attached to the tip of the male member together with the coil spring, which makes the string threading work troublesome and increases the production cost. there were.

The present invention has been made in view of the above-mentioned problems of the conventional technique, and an object thereof is to provide a cord tightening tool which has a small number of parts and is easy to assemble and insert a cord.

[0006]

[Means for Solving the Problems]

 This invention is directed to a female member having a male member having a string through hole penetrating the side surface and a hollow portion into which the male member is inserted and having a string through hole communicating with the string through hole of the male member on the side surface. A member and an elastic member for urging the male member in the female member in the projecting direction, and a column portion projecting from the male member to which the elastic member is attached, and a column portion formed at the tip portion of the column portion. An engagement piece with which one end of the elastic member engages is formed, and an engagement release portion including a recess or the like for releasing the engagement of the engagement piece when the male member is pushed into the bottom portion of the female member. Is a string fastener formed.

Further, the engagement piece is formed so as to be elastically deformable in a direction of releasing the engagement with the elastic member, and the engagement releasing portion formed on the female member is formed by the side surface or the like of the male member. Along with the pushing, the engaging piece is pressed in the direction of releasing the engagement with the elastic member. Further, the engaging piece is capable of coming into contact with the engagement releasing portion and breaking when the male member is pushed. Further, the elastic member is a coil spring fitted in the column portion, and has an elliptical or long length having a minimum inner diameter with which the engaging piece can engage and a maximum inner diameter through which the engaging piece can pass. It is formed into a circular deformed coil. Further, the elastic member is a coil spring whose one end abutting on the engagement piece is formed to have an inner diameter that allows engagement, and the portions other than this one end are formed to have an inner diameter through which the engagement piece can pass. .

[0008]

[Action]

 In the cord fastener of this invention, when the cord is inserted through the cord passage hole, an elastic member such as a coil spring is attached to the column portion of the male member, and one end of the elastic member is locked to the engaging piece. The elastic member can be temporarily held by the male member in a compressed state. In this state, the male member is delivered into the female member, the string insertion holes of both are aligned and the string is inserted, and the male member is inserted into the female member. When the male member is urged further toward the female member by pushing it further into the male member, the engaging member and the elastic member are disengaged from each other. It is sandwiched by the string through holes of the female member.

[0009]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 to 6 show a first embodiment of the present invention, in which the cord fastener of this embodiment can be inserted into the female member 10 made of a resin and formed into a cylindrical shape. And a male member 12 made of resin formed in a cylindrical shape. The female member 10 is formed in a hollow shape having an upper portion opened and a lower end portion having a bottom surface 14 and being closed. A pair of circular string through holes 16 are formed on the side surface of the female member 10 so as to face each other at symmetrical positions. Fitting grooves 17 and 18 formed of a pair of notches facing each other are formed at the upper and lower edge portions of each cord passing hole 16. Further, on the inner wall surface of the female member 10, a pair of guide ridges 19 are formed facing each other in the axial direction.

The male member 12 is formed with a cylindrical base portion 20 having a diameter slightly smaller than the inner diameter of the female member 10 and capable of being inserted into the female member 10. The side surface of the base portion 20 extends from the lower end to the upper end. A pair of groove portions 22 that are formed symmetrically toward each other and into which the pair of protrusions 19 of the female member are respectively fitted are formed along the axial direction. A string passing hole 24 penetrating the base portion 20 is formed on the side surface of the position orthogonal to the groove portion 22. The lower end edges on both sides of the string passing hole 24 are fitted into the fitting grooves 17 and 18 of the female member 10 so that the male member 12 projects from the female member 10 by coming into contact with one fitting groove 17. A pair of protrusions 26, which are stoppers for prevention, are formed.

The base portion 20 of the male member 12 is integrally formed with a pillar portion 28 projecting from the lower end surface, and the tip end portion of the pillar portion 28 is integrally formed as a narrowly formed support portion 29. A pair of engagement pieces 30 that spread from the tip of the support portion 29 toward the base portion 20 are integrally formed. The outer shape of the engaging piece 30 is formed into an oval shape, and the engaging piece is elastically deformable in the major axis direction of the oval. A receiving portion 34 that engages with a coil spring 32, which will be described later, is formed at the end of the engaging piece 30 on the base 20 side.

A coil spring 32 as an elastic member having an elliptic or elliptic coil shape into which the engaging piece 30 can be inserted is inserted into the column portion 29. One end of the coil spring 32 is supported by the receiving portion 34 of the engaging piece 30 such that the minimum inner diameter of the coil spring 32 is substantially equal to the distance between the receiving portions 34 of the pair of engaging pieces 30. Is formed wider than the maximum width of the engagement piece 30. Further, inside the bottom surface 14 of the female member 10, the tip of the column portion 28 is fitted together with the engaging piece 30, and the pushing of the male member 12 and the inclination of the side surface of the engaging piece 30 cause the engaging pieces 30 to be separated from each other. A concave portion 35 is formed as an engagement releasing portion that elastically deforms in the approaching direction. By inserting the male member 12, the depth of the concave portion 35 can be deformed such that the engaging pieces 30 are brought closer to each other, and the receiving portion 34 can be deformed so as to be separated from the end portion of the coil spring 32. The depth of the end surface 34 is such that it does not separate from the coil spring 32.

In the method of using the cord fastener of this embodiment, first, the coil spring 32 is inserted into the column portion 28 of the male member 12, and one end of the coil spring 32 is supported by the receiving portion 34 of the engaging piece 30. Then, the coil spring 32 is held in a compressed state between the base portion 20 and the receiving portion 34. At this time, the coil spring 32 is inserted with the maximum inner diameter aligned with the long diameter of the engaging portion 30 according to the shape of the engaging portion 30 and compressed, and then rotated by 90 degrees to move the receiving portion 34 to the coil spring 32. Match the minimum diameter of and engage. Alternatively, the engaging portion 30 may be elastically deformed, and the minimum diameter portion of the coil spring 32 may be pressed into contact with the engaging portion while being pushed into the receiving portion 34.

In this state, the male member is in a state of holding the coil spring 32, and the male member 12 is inserted into the female member 10 by aligning the groove 22 of the male member 12 with the guide protrusion 19 of the female member 10. At this time, the male member 12 is inserted along the guide ridges 19 of the female member 10, so that the male member 12 does not rotate during the insertion and the positions of the string insertion holes 16 and 24 do not shift. Then, in the inserted state, the string through hole 24 of the male member 12 and the string through hole 16 of the female member 10 are aligned, and the string 40 is inserted through the string through holes 16 and 24.

After that, when the male member 12 is further pressed into the female member, the engaging piece 30 at the tip of the male member 12 moves from the position shown by the solid line in FIG. 4 to the female member 10 as shown by the chain double-dashed line. The space between the pair of engaging pieces 30 is narrowed by being inserted into the recess 35. Then, the receiving portion 34 and the coil spring 32 are disengaged, and the state shown by the two-dot chain line in FIG. 4 is obtained. After this, when the pressing of the male member 12 is released, the engaging portion 34 contacts the inside of one end of the coil spring 32 from the state shown by the two-dot chain line in FIG. Energize. Then, as shown in FIG. 6, the coil spring 32 rotates nearly 90 degrees so that the maximum inner diameter portion thereof is located on the side of the engagement piece 30. This rotation is caused by the fact that the biasing force of the engaging piece 30 to open does not act vertically on the minimum inner diameter portion of the coil spring 32, and normally the biasing force acts correctly vertically. Therefore, the coil spring 32 can be reliably rotated.

When the male member 12 is released from the pressing force, the male member 12 is urged by the coil spring 32 in a direction projecting from the female member 10, and is inserted into the string passing holes 16 and 24 as shown in FIG. The cord 40 is held by the cord through holes 24 and 16 of the male member 12 and the female member 10 to hold the cord 40 securely.

According to the cord fastener of this embodiment, it is not necessary to hold the male member 12 against the biasing force of the coil spring 32 when inserting the cord 40 into the cord insertion holes 16 and 24. In addition, the number of parts is as small as 3, and assembly and stringing work is greatly simplified, and the number of parts can be reduced without impairing the stringability, and the number of manufacturing steps and costs can be reduced. It is something to do.

Next, a second embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. In the cord tightening tool according to this embodiment, the coil shape of the coil spring 32 is circular, and the inner diameter of one end of the engaging piece 30 that abuts the receiving portion 34 is relatively small enough to engage with the receiving portion 34. The inner diameter of the other portion is made wider than the space between the engaging pieces 30.

According to the cord fastener of this embodiment, when the male member 12 is released after the male member 12 is pushed into the state shown by the chain double-dashed line in FIG. Even if the receiving part 34 opens from the inside of one end of 32 and the receiving part 34 opens, the inner diameter of the upper part of the coil spring 32 is wider than the width of the engaging piece 30, so that the engaging piece 30 is attached to the coil spring 32. The male member 12 is biased in the protruding direction without abutting, and securely holds the cord.

Next, a third embodiment of the present invention will be described with reference to FIG. Here, the same members as those in the above-described embodiment are designated by the same reference numerals and the description thereof will be omitted. In the cord tightening tool of this embodiment, the engaging piece 30 of the male member 12 is formed to be rupturable, the coil spring 32 is attached to the male member 12, and after the string threading work, the male member 12 is further subjected to the same procedure as in the above embodiment. When 12 is pushed into the female member 10, the tip of the support portion 29 of the male member 12 is fitted into the recess 35 of the female member 10, and the engaging piece 30 is sheared by the corner of the recess 35. Then, when the pressing of the male member 12 is released, one end of the coil spring 32 is supported by the bottom portion 14 of the female member 10 and biases the male member 12 in the protruding direction.

Also in this embodiment, the same effect as that of the upper embodiment can be obtained, and the shape of the engagement piece 30 can be made simpler.

The shape of the engaging piece of the cord fastener of the present invention is not limited to the above-mentioned embodiment, as long as it can release the engagement with the coil spring, and the outer shape is not limited to the elliptical shape and is elastic. It may be a deformable protruding piece. Further, in the cuttable engaging piece, the cut portion can be arbitrarily set, such as a ring-shaped cut portion formed on the side peripheral surface or a partially protruded portion. In addition, the shape of the coil spring as an elastic member is not limited to the oval or elliptical inner diameter, and the part where the inner diameter is formed so that the engaging part does not abut, and the engageable part at one end. I wish I had it. Further, the engagement releasing portion may be, in addition to the concave portion, a ring-shaped ridge having a height at which the tip of the engaging piece can be fitted and which has a height at which the engagement can be released. It may be a partial convex portion that is divided into a plurality of parts, as long as the engaging piece can be deformed or broken to release the engagement with the elastic member.

[0023]

[Effect of device]

 The cord fastener of the present invention has a small number of parts, and when inserting the cord into the female member and the male member, it is not necessary to press and hold the male member against the elastic member. Assembly work is also easy.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a first embodiment of a cord fastener according to the present invention.

FIG. 2 is a front view of a male member of the cord fastener of the first embodiment.

FIG. 3 is a partially cutaway side view showing a usage state of the cord fastener of the first embodiment.

FIG. 4 is a partially cutaway vertical sectional view showing a state in which the male member is pushed into the female member after the string is inserted through the string fastener of the first embodiment.

FIG. 5 is a vertical cross-sectional view showing a usage state after the string is inserted through the string fastener of the first embodiment.

FIG. 6 is a schematic view showing the movement of the coil spring of the lace fastener of the first embodiment.

FIG. 7 is a partially cutaway vertical sectional view showing a state in which a coil spring is attached to the male member of the cord fastener according to the second embodiment of the present invention.

FIG. 8 is a partially cutaway vertical sectional view showing a state in which a coil spring is attached to the male member of the cord fastener according to the third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Female member 12 Male member 16 and 24 String through hole 28 Column part 30 Engaging piece 32 Coil spring (elastic member) 35 Recessed part (engagement releasing part)

Claims (5)

[Scope of utility model registration request] 1. A male member (12) having a string passing hole (24) penetrating a side surface thereof, and a hollow portion into which the male member (12) is inserted. A female member (10) having a string through hole (16) communicating with the female member (24) formed on a side surface thereof, and the male member (12) being the female member (10).
A cord fastener comprising an elastic member (32) for urging the elastic member (32) in a protruding direction, and a column portion (28) projecting from the male member (12) to which the elastic member (32) is attached, and the column portion. The elastic member (32) formed at the tip of (28)
An engaging piece (30) with which one end of the female member engages, and the female member (1
0) is provided on the bottom surface (14) of the male member (12) and is provided with an engagement releasing portion (35) for releasing the engagement of the engaging piece (30). String fastener. 2. The engagement piece (30) is elastically deformable in a direction of releasing engagement with the elastic member (32),
Disengagement portion (35) formed on the female member (10)
The cord fastener according to claim 1, wherein the engaging piece (30) is pressed in a direction of releasing the engagement with the elastic member (32) as the male member (12) is pushed. 3. The engagement piece (30) comprises the male member (1).
The cord fastener according to claim 1, wherein the cord fastener is capable of being broken by coming into contact with the engagement releasing portion (35) when being pushed in (2). 4. The elastic member is a coil spring (32) fitted to the column portion (28) and has a minimum inner diameter with which the engaging piece (30) can be engaged and the engaging piece (30). (3) is formed in a coil having a deformed shape having a maximum inner diameter through which the cord can pass. 5. The elastic member is formed to have an inner diameter capable of engaging one end abutting against the engaging piece (30), and the portion other than the one end can pass the engaging piece (30). The cord fastener according to claim 1, which is a coil spring (32) formed on an inner diameter.