CN1147251C

CN1147251C - Fastener for thin thread

Info

Publication number: CN1147251C
Application number: CNB991248473A
Authority: CN
Inventors: 石井庸介
Original assignee: Nifco Inc
Current assignee: Nifco Inc
Priority date: 1998-12-22
Filing date: 1999-11-19
Publication date: 2004-04-28
Anticipated expiration: 2019-11-19
Also published as: JP2000184906A; TW409045B; KR100314870B1; HK1029028A1; KR20000047660A; CN1260152A

Abstract

A cord fastener is formed of a main body having an through hole for putting a cord through and a locking member which is incorporated to the main body and is capable of engaging the cord put through the hole from its one opening to the other against force in the pulling out direction of the cord. In this case, the main body has a notch part obtained by partially notching it corresponding to the member and a receiving surface for the cord formed near the hole. In addition, the member is rotatably formed corresponding to the notch part of the main body and has a nearly linear teeth part formed on the side of a rotating end. Then, the part can be switched from a cord releasing position to a cord engaging position, where the part is parallel with the surface, by rotation of the member. The cord fastener which has large locking force, is satisfactory in cord inserting operability or handleability and excellent in appearance.

Description

Fastener for thin thread

Technical field

The present invention relates to fastener for thin thread, this fastener for thin thread has through hole, is configured in drawstring on clothes or the bag etc., stay cord or big belt (below be referred to as cord) and can passes its through hole, at the state that cord is pulled out from through hole it is blocked and anti-avulsion.

Background technology

This kind fastener for thin thread divides from preventing the structure that cord is deviate from, have helical spring type and in wheeled two classes.Fig. 7 represents the former conventional example, is made of the Lock Part 32 that bottom tube-like body 30 and coherent through hole 32a are arranged of coherent through hole 30a.This Lock Part 32 is pushed towards projected direction by the springs 31 in a part of body 30 of can packing into with haunting.State from Fig. 7 (a), Lock Part 32 pushed make two through

hole

30a, 32a aim at (being the releasing cord position of Lock Part 32), being located at after cord 40 on clothes etc. passes the through hole 32a of Lock Part 32 from side's opening of base side through hole 30a, be pulled out to the outside from the opposing party's opening of base side through hole 30a.After cord passes, discharge the power that pushes away Lock Part 32 down, shown in Fig. 7 (b), Lock Part 32 is pushed to by spring 31, and through hole 32a and base side through hole 30a stagger.Like this, cord 40 is held under the arm between the lower edge of the upper limb of through hole 30a and through hole 32a, with the effect of the corresponding clamping power of the elastic force of spring 31 under, cord 40 deviate to be prevented from.

Fig. 8 is the latter's a conventional example.Width dimensions between the both sides 35a of body 35 attenuates towards the other end from an end, has the sliding tray 35b of middle left and right directions.Lock Part 36 has takes turns 36a in the circle, middle wheel 36a with both sides 35a circular arc portion in opposite directions on, form the tooth 36b of portion.Cord 41 is from the releasing cord position of the Lock Part 36 of Fig. 8 (a), from body 35 one distolateral by take turns between 36a and the side's sidewall 35a after, shown in Fig. 8 (b) in another distolateral wraparound, in passing again between wheel 36a and the opposing party's sidewall 35a.From this state, when another distolateral cord stuck position moved, cord was by between each 36b of tooth portion and respective sides 35a of wheel 36a in being held under the arm along sliding tray 35b for Lock Part 36, and it deviates to be prevented from.

Above-mentioned existing fastener for thin thread, in the structure shown in Figure 7, spring 31 is made by metal or resin, though the latching force for the cord tearaway load is strengthened with spring force with being directly proportional,, strengthened spring force after, the power that pushes Lock Part 32 also increases, so operability is bad.In addition, in the position that Lock Part 32 blocks cord 40, two through hole 30a, the 32a of body 30 and Lock Part 32 stagger, and cord 40 is forced to bending because of staggering of hole.When cord is the big elastic cord of diameter, get back to a linear state because of the recuperability of elastic cord, at this moment Lock Part 32 just can not remain on the position of blocking cord, and perhaps latching force weakens.In structure shown in Figure 8, though that the past more cord stuck position of Lock Part 36 moves its latching force is strong more,, being locked power correspondingly, latched position staggers, and can not block at the position that cord is pinned in hope.The operation that connects of cord is distolateral distolateral to another from body 35, in walking around again wheel 36a get back to one distolateral, so use inconvenient.In addition, in appearance, its integral body is flat, the size L between the cord cord penetrate oral-lateral with in take turns 36a and increase with being directly proportional, be not suitable for clothes etc., the scope of application is restricted.

Summary of the invention

The present invention makes in view of the above problems, and its purpose is to provide that a kind of latching force is big, cord connects good operability, and is easy to use, the fastener for thin thread that outward appearance is good.Other purpose can be learnt in the following description.

To achieve these goals, to shown in Figure 6, fastener for thin thread of the present invention is made of body and Lock Part as Fig. 1; Body has the cord of confession and passes the through hole of usefulness; Lock Part is packed in the body, and the opposing cord is deviate from the power of direction, will block from side's opening of above-mentioned through hole cord through the opposing party's opening; Wherein, above-mentioned body has notch and cord bearing plane, and notch is corresponding with above-mentioned Lock Part, and a part is cut and forms; Cord uses bearing plane near above-mentioned through hole; Above-mentioned Lock Part and body notch are being provided with accordingly rotationally, has distolateral, the parallel summary linearity tooth portion of its rotation that is formed on above-mentioned bearing plane, this tooth portion removes the position from cord and switches to the cord stuck position parallel with above-mentioned bearing plane by the rotation of Lock Part.

This structure with before the structure compare, have the following advantages.

1.. aspect ease of use, after the opposing party's opening is passed from side's opening of body through hole in the end of cord, as long as being removed the position from cord, Lock Part rotates, so good operability towards the cord stuck position.In addition, in this structure, even inoperation Lock Part itself, for example, from the interim lock-out state (state shown in the chain-dotted line) of Fig. 1, carry out the drawing in of cord (cord towards the left of Fig. 1 to drawing), retract (cord is drawn towards the right of Fig. 1) operation, just cord can be blocked or removes.

2.. cord is passed the opposing party's opening by the side's opening from the body through hole, is held under the arm between the tooth portion of the Lock Part that rotates on the bearing plane.This is seized on both sides by the arms in the structure, because tooth portion is linearly, and it is parallel with the bearing plane of body in the cord stuck position, so, more expand the hostage part of big gearing part than pattern shown in Figure 7 to cord, simultaneously, because the direction of blocking of tooth portion is intersected with the direction of deviating from of cord, so, can increase latching force or block power.

3.. aspect outward appearance, purposes, because the notch portion with body constitutes Lock Part, so than more miniaturization of pattern shown in Figure 7, in addition, because body has the through hole that cord is used, so, when the bending part of 2 cords or cord is passed through hole, do not resemble the size L that strengthens as shown in Figure 8 between the cord, can will form state closely between the cord, have good outward appearance.

In addition, in the above-mentioned structure, for example above-mentioned notch is configured to identical size with Lock Part, above-mentioned bearing plane is formed on the opposing party's open side of through hole, Lock Part whole notch that enters body when the cord stuck position then, so, can realize miniaturization.Simultaneously, the opposing party's open side that the base side bearing plane is positioned at through hole is the cord outlet side, and the rotation direction of Lock Part becomes the arm-tie direction of cord.Like this, Lock Part is drawn towards the arm-tie direction of cord more by tooth portion, is just firmly bitten by cord more.

In addition, in the above-mentioned structure, has counter-force limiting wall portion, this counter-force limiting wall portion is based in the notch, block the position of cord at above-mentioned Lock Part, the plate portion that makes the above-mentioned tooth of formation portion is not because of the power displacement crisscross with cord, for example, when blocking diameter greater than slightly between linearity tooth portion and the bearing plane during cord in gap, form the plate portion of tooth portion, though be subjected to the stress crisscross with cord, at this moment this plate portion is also by counter-force limiting wall portion fixed position, cord is blocked state remain normally, easily the load of abirritation in Lock Part rotation pivot branch.

The invention described above preferably as following ground is further specializes.

The 2.th has projection, and this projection is darted on the inner face of above-mentioned notch, above-mentioned Lock Part is remained on cord temporarily remove the position, and can flexibly rotate when switching to the cord stuck position.In this structure,, Lock Part removes the position, so the initial stage operation of cord being passed through hole is very convenient because being remained on cord by projection temporarily.In addition, this projection is given and is blocked sound or contact sound when Lock Part rotates, and can easily confirm each switching condition.

The 3.th above-mentioned Lock Part forms when the cord stuck position and the slightly continuous outer peripheral face of above-mentioned body periphery, and has the operation tab at this outer peripheral face.The aesthetic appearance of this structure and the rotating operation of Lock Part are good.

Description of drawings

Fig. 1 is to use the sectional drawing of STA representation embodiment of the invention fastener for thin thread effect.

Fig. 2 is an outside drawing of seeing above-mentioned fastener for thin thread from the place ahead and rear.

Fig. 3 be from the front side and above see the figure of above-mentioned fastener for thin thread.

Fig. 4 is A-A line sectional drawing and a C-C line sectional drawing among Fig. 3.

Fig. 5 is the pie graph that above-mentioned fastener for thin thread is decomposed, sees from the rear Lock Part.

Fig. 6 is the pattern outside drawing that the above-mentioned fastener for thin thread of expression makes use-case.

Fig. 7 is the figure that blocks the existing fastener for thin thread of STA representation with cord disarm state and cord.

Fig. 8 is the figure that blocks another existing fastener for thin thread of STA representation with cord disarm state and cord.

The specific embodiment

Below, with reference to the description of drawings embodiments of the invention.This embodiment is a concrete example of the present invention, does not limit technical scope of the present invention.

Fig. 1 to Fig. 6 is the fastener for thin thread of the expression embodiment of the invention.Wherein, Fig. 1 is a sectional drawing of representing the fastener for thin thread user mode with the B-B line section of Fig. 3 (b).Fig. 2 (a) and (b) are stereograms of seeing fastener for thin thread from the place ahead and rear.Fig. 3 (a) and (b) are the figure that see fastener for thin thread from front side and top.Fig. 4 is the sectional drawing of the C-C line of the A-A line of Fig. 3 (a) and Fig. 3 (b).Fig. 5 (a) and (b) are figure after fastener for thin thread is decomposed and the figure that sees Lock Part from the rear.Fig. 6 is the skeleton diagram that the expression fastener for thin thread makes use-case.

Fastener for thin thread shown in the figure 1 is made of body 10 and Lock Part 20 such two parts.Lock Part 20 is gone into body 10 by group rotationally.Body 10 and Lock Part 20 all are resin forming products, but also can make with other material.When this fastener for thin thread 1 was used on the general clothes, the size of its integral body was, the about 15～30mm of size up and down, and maximum outside diameter is 10～25mm.

Body 10 is that the cross section is oval-shaped cylinder, with the front side of Fig. 5 (a) during as the front side, in the middle of the front side, form from apart from below desired height position until the otch of upper end, Lock Part 20 is organized to go in this notch 11 rotationally.With notch 11 is center when representing each, and body 10 can be divided into two side portions 10a, the back portion 10b of notch 11, the lower part 10c of notch 11 of notch 11.At two side portions 10a, the installing hole 12 that connects before and after being respectively equipped with.Belt 43 grades are passed installing hole 12, again its both ends are sewed up, fastener for thin thread 1 is installed in last (seeing the enlarging section of Fig. 6) such as clothes with suspension status.Part 10b is provided with and wears the through hole 13 that cord is used overleaf.The openend of this through hole 13 is positioned at the back side and the notch 11 of back portion 10b, is the rectangle (horizontal 10mm * vertical 3.5mm) that can pass 2 cords 42, and this size can be according to the external diameter and the decision of cord radical of wearing cord in design.Among Fig. 2 (b), mark 10d is demoulding hole.

In notch 11, the front side is wideer slightly than portion in the close part 10b, and the twist-lock parts 20 like this, and it is come in and gone out easily.Be provided with in inside cord with bearing plane 14, counter-force limiting wall portion 15, Lock Part with the bearing that keeps wall 16, Lock Part 20 with recess 17, keep the projection 18 of Lock Part 20 temporarily.Wherein, cord bearing plane 14 constitutes the downside inner face of notch 11, forms the plane that flushes with the bottom surface of through hole 13 as shown in Figure 1.From the exterior side of part 10b is the cord 42 that an end opening of through hole 13 passes, and derives outside from the other end opening of the through hole 13 that is exposed to notch 11 by this bearing plane 14.Counter-force limiting wall portion 15 and maintenance wall portion 16 are separated into three layers up and down with notch 11 inside except the above-mentioned front part that broadens.That is, counter-force limiting wall portion 15 and bearing plane 14 setting that walks abreast with keeping certain intervals, its front end both sides are cut away by the part and are formed convex.The above-mentioned interval height dimension than through hole 13 in the present embodiment is big, but also can be same high with through hole 13.Keep wall portion 16 slightly be positioned at abreast counter-force limiting wall portion 15 above, and shorter than counter-force limiting wall portion 15.Keeping in the wall portion 16, be provided with support tabs 16a in the summary centre position, this support tabs 16a tilts toward oblique upper towards the inside of notch 11.When Lock Part 20 was turned to maximum toward cord releasing direction, the corresponding portion of Lock Part 20 and the last conical surface of support tabs 16a joined.Bearing is positioned at the upside that keeps wall portion 16 with recess 17, is located at two medial surfaces of notch 11.Two recesses 17 are located on the part 17a that the medial surface of notch 11 is reduced, and like this, become lower dead eye.As shown in Figure 1, the upside of the inside of notch 11 is formed flexure plane 19, keep the projection 18 of usefulness outstanding temporarily at the middle up and down width of flexure plane 19.

Lock Part 20 forms the コ font with the identical approximately size of notch 11 as illustrated in fig. 2, the コ font last slice be set at base portion 21, following of the コ font is set at and rotates distolateral lower plate portions 22, the both sides brace of コ font is set at intermediate plate part 23.The inboard of intermediate plate part 23 forms cavity 24, and the front end mid portion of counter-force limiting wall portion 15 can insert empty 24 (see figure 1)s.At the outside of intermediate plate part 23 downside, form the operation tab 25 that stretches out gradually highlightedly down.Two outsides under base portion 21 are provided with the axle 27 chimeric with above-mentioned recess 17.Diaxon 27 stretches out towards the center of the circular pedestal 27a of portion shown in Fig. 5 (a) and Fig. 4 (b), the front side of its outstanding end face is formed lower, easy so chimeric with recess 17.The end face of lower plate portions 22 forms the tooth portion 26 of outstanding several teeth (being 3 teeth in the present embodiment) in the plane.That is, this tooth portion 26 is formed with some teeth with respect to lower plate portions 22 widths (most advanced and sophisticated acute angle or jagged tooth) from the front side to rear side, and is relative abreast with above-mentioned cord bearing plane 14.

Tooth portion 26 and bearing plane 14, with the relation of circular-arc tooth 36b of portion among Fig. 8 and sidewall 35a similarly, cord 42 is seized on both sides by the arms in gap between the two, the effect of nipping by each tooth of tooth portion 26 stops cord 42 to come off.But in should constructing, since the part that will be provided with tooth portion 26 remain long summary linearity, tooth portion 26 and bearing plane 14 be parallel to each other, parallel by making it, several teeth one that are located at tooth portion 26 are reinstated identical power and are bitten cord 42, so, compare latching force and block power and can increase with the circular-arc tooth 36b of portion of Fig. 8.In addition, in this structure, as the variation of bearing plane 14, its vertical section can be formed concavity, also can form front end acute angle or jagged tooth etc., these are also contained in the present invention.

Above-mentioned Lock Part 20 is packed in the body 10 rotationally.Its assembling main points are, for example as Fig. 5 (a) shown in, after the notch 11 of Lock Part 20 and body 10 disposed in opposite directions, spools 27 of both sides were pushed into recess 17 from low part 17a respectively.Like this, Lock Part 20 is as shown in Fig. 1 waits, and the cord latched position in integral body is housed in the notch 11 of body 10 shown in Fig. 2 (a), is only operated the outside that tab 25 is projected into body 10.Therefore, when the cord stuck position was promptly used state, Lock Part 20 became and the slightly continuous outer peripheral face of the periphery of body 10, is integrated in appearance.Usually commercially available with this state, shown in the enlarging section of Fig. 6, will be with 43 grades to pass installing hole 12, by being with 43 grades fastener for thin thread 1 is installed on clothes etc. with suspension status.

Lock Part 20 is a fulcrum with the axle 27 of both sides, and during with rotating operation tabs 25 such as finger tips, shown in the double dot dash line of Fig. 1, the end face of base portion 21 outwards rotates from notch 11, is restricted to up to the last conical surface that is supported tab 16a and ends.When finger left operation tab 25, Lock Part 20 rotated downwards under the deadweight effect shown in the chain-dotted line of Fig. 1, till the end face edge of base portion 21 is run into projection 18, is being kept by projection 18 temporarily.Usually, from this state, through hole 13 is passed in the end of cord 42.That is, cord 42 is from an end opening that is positioned at body 10 rear side of through hole 13, pass the other end opening that is positioned at notch 11, again along bearing plane 14 through the outside.After fastener for thin thread 1 being moved to the appropriate location of cord 42, Lock Part 20 is turned to the solid line position of Fig. 1.Like this, fastener for thin thread 1 be positioned on the bearing plane 14 sustained 14 of cord part and slightly the long tooth portion 26 of linearity seize on both sides by the arms, and several teeth of tooth portion 26 are bitten this cord part respectively, resist the power F that deviates from direction of cord 42 and cord is blocked.The latching force of the Lock Part 20 of this fastener for thin thread 1 and block power, the opposing party's open side that is positioned at through hole 13 when bearing plane 14 is that the power F that deviates from direction of cord outlet side, cord 42 is big more, Lock Part 20 is easy of more cord stuck position side shifting, Lock Part 20 almost all enters in the notch 11 of body 10, so, also can not remove the position towards cord when running into Lock Part 20 even pledge clothes etc. rotates, so, as long as need not point Lock Part 20 is rotated towards direction shown in the double dot dash line of Fig. 1, just can not remove.

In addition, this fastener for thin thread 1 will block the cord of diameter greater than gap between tooth portion 26 and the bearing plane 14 sometimes.At this moment, usually, on the lower plate portions 22 that forms tooth portion 26, acting on the stress that makes progress that intersects with cord 42, pivot is propping up on the axle 27 of Lock Part 20, is acting on load up.But in the present embodiment, above-mentioned unfavorable situation is prevented by counter-force limiting wall portion 15.Promptly, on the lower plate portions 22 that forms tooth portion 26, acted on cord 42 intersects towards upper stress the time, the distortion of counter-force limiting wall portion 15 restriction lower plate portions 22 and mobile, the cord of tooth portion 26 is blocked state remain normally, perhaps make on axle 27, not act on big load.And, in this structure, Lock Part 20 is remained on cord by projection 18 temporarily and removes the position, so, for example when Lock Part 20 is removed the position rotation from cord releasing position towards the rotation of cord stuck position or from the cord stuck position towards cord, give clamping sound or contact sound, can easily confirm each switching, also have feeling of high class.

In addition, fastener for thin thread 1 of the present invention, the shape of body 10 and Lock Part 20, the concrete forms such as size shape of through hole 13 can be done various distortion.

As mentioned above, in the fastener for thin thread of the present invention, cord passed through hole after, as long as the twist-lock parts so the convenience that uses is identical with pattern shown in Figure 7, or also make things convenient for than it.Because it is parallel with the bearing plane of body to be the long tooth portion of linearity slightly, so the latching force of Lock Part or the power of blocking are identical with pattern shown in Figure 8, or stronger than it.In addition, do not have spring decay or bonding phenomenon in the structure shown in Figure 7, also can not resembling the structure shown in Figure 8 Lock Part, can to remove direction towards cord moving.Since constitute Lock Part with the notch portion on the body, thus the miniaturization more of comparable structure shown in Figure 7, because body and Fig. 7 similarly have the cord through hole, so, can not resemble the size L that strengthens as shown in Figure 8 between the cord, can keep good outward appearance.Therefore, the present invention compares with structure of the prior art, with convenient, superior in quality, do not have the use on restriction, can enlarge range of application.

Claims

1. a fastener for thin thread is made of body and Lock Part; Body has the cord of confession and passes the through hole of usefulness; Lock Part is packed in the body, and the opposing cord is deviate from the power of direction, will block from side's opening of above-mentioned through hole cord through the opposing party's opening; It is characterized in that,

Above-mentioned body has notch and cord bearing plane, and notch is corresponding with above-mentioned Lock Part, and a part is cut and forms; Cord uses bearing plane near above-mentioned through hole;

The notch of above-mentioned Lock Part and above-mentioned body is being provided with accordingly rotationally, has distolateral, the parallel summary linearity tooth portion of its rotation that is formed on above-mentioned bearing plane, this tooth portion removes the position from cord and switches to the cord stuck position parallel with above-mentioned bearing plane by the rotation of Lock Part.

2. fastener for thin thread as claimed in claim 1 is characterized in that having projection, and this projection is darted on the inner face of above-mentioned notch, above-mentioned Lock Part is remained on cord temporarily remove the position, and can flexibly rotate when switching to the cord stuck position.

3. fastener for thin thread as claimed in claim 1 or 2 is characterized in that, above-mentioned Lock Part forms when the cord stuck position and the slightly continuous outer peripheral face of above-mentioned body periphery, and has the operation tab at this outer peripheral face.