JP5122150B2 - Tie fastener - Google Patents

Description

  The present invention is suitable, for example, for pulling both ends or one end of a string arranged on the front side of a shoe, around the opening edge of a bag body, etc., to lock to an arbitrary length, or to adjust the tightening degree of the string. Concerning string fasteners.

As illustrated in Patent Documents 1 to 3, this type of string fastener includes a slider (also referred to as an inserter, a slide body, or the like) that forms a string through hole, and the slider on the end surface side. A case (also referred to as a main body, a case body, an outer body, etc.) which is slidably disposed in the inner space from the opening and which has a window portion which can communicate with the through hole formed on the upper and lower surfaces facing each other; And an urging means (comprising a coil spring or an elastic piece of resin) for urging the slider in a direction protruding from the case. During use, the slider is slid in the protruding direction from the case by the urging force of the urging means, and the position of the slider-side through hole with respect to the case-side window is shifted so that the corresponding portion of the string becomes the window inner surface. It is clamped between the corresponding inner surface portions of the through holes, and thereby locked so as not to pull out the pulling side end portion of the string. Also, when releasing the lock or adjusting the pulling amount of the string, the string fastener itself is moved along the string while keeping the slider pushed into the case against the biasing force. .
Japanese Utility Model No. 5-3052 JP-A-11-332617 JP 2001-218607 A

  The above-described conventional strap fasteners are simple and easy to use because they can easily adjust the pull-out amount of the strap, but all require a biasing means that biases the slider, so further downsizing, It is difficult to achieve weight reduction and cost reduction. That is, if the coil spring is used as in the biasing means as in Patent Documents 1 and 3, the number of parts is increased and an arrangement space is required. If the elastic piece is integrally formed with the slider as in Patent Document 2, the mold is expensive. If the elastic piece is short, it is difficult to give good elastic properties, and if it is long, a large arrangement space is required.

  An object of the present invention is to solve the above-described problems and particularly to reduce the number of parts and achieve a reduction in size and weight, thereby contributing to improvement in reliability and application expansion.

In order to achieve the above object, the present invention is specified by referring to a form example, and the slider 2 in which a string through hole is formed and the slider 2 can be slid into the inner space 14 from the opening 14a on the end face side. And a case 1 formed on opposite upper and lower surfaces of a window portion that can be arranged and communicated with the through hole, and a string 4 has its pull-side end portion 4a passed through the window portion and the through hole. In the string fastener 3 that can be locked so as not to come off by shifting the position of the through hole with respect to the window portion through sliding of the slider 2 from the state,
The case 1 and the pair of sliders 2 and 2 have a three-point configuration. The case 1 has the inner space 14 and the window portions 15 and 16 on both sides, and each slider 2 has two through holes. A substantially tongue-shaped insertion plate portion 20 formed at a location, and the case provided in a corresponding end of the insertion plate portion 20 with the insertion plate portion inserted into the case internal space to the maximum extent. A button portion 21 that covers the first opening 14a in an invisible manner from the outside, and a retaining means 24 that is provided on the insertion plate portion so as not to be inadvertently detached from the case 1. Are disposed independently in the inner space 14 on both sides of the case, and at least one of the through holes 22 and 24 and the window portions 15 and 16 is an edge portion (22a) that bites into the corresponding portion of the string. , 23a, etc.) is provided, pulling the cord 4 The side end portion 4a is guided to the both sides of the case 1 from different directions and passed through the corresponding window portion 15 or 16 and the through holes 22 and 23, respectively, and then pulled by the pulling operation in the different direction. Each slider 2 is slid so that the edge portion can be locked with the corresponding portion of the string .

  In the present invention described above, the string is used in a broad sense including ropes and cords similar to those. In addition, as the pulling side end of the string, for example, an aspect in which both ends of the same string become the pulling side end like a normal shoe string, and each divided string is attached to a place where an article such as clothes is separated. When the pulling side end of each string is pulled, a mode in which the corresponding end of the different string becomes the pulling side end can be considered.

The present invention as described above is more preferably embodied as follows. That is, the through holes 22 and 23 have a circular shape, and the window portions 15 and 16 have an oval shape that can expose the through holes (Claim 2) .

  The invention of claim 1 has a three-point configuration, in particular, a case and two sliders as compared with the conventional structure, and the slider is operated by pulling the pull side end of each string in a different direction without using a biasing means. As a result, sliding to the string locking position can achieve further cost reduction and reduction in size and weight, thereby realizing expanded applications.

In addition, in the present invention, on the premise of simplifying the structural members, it is possible to improve the operability when adjusting the appearance characteristics and the length of the string by the presence of a button portion that covers the opening of the case invisible. Further, the retaining means prevents the slider from falling off when not in use, so that the handleability can be maintained.

Further, in this invention, the pull side end of the string is sandwiched between the case side window portion inner surface and the corresponding inner surface portion of the corresponding through hole on the slider side so as not to come off, By securing with, it is possible to provide a reliable retaining lock. In contrast, in the inventions of claim 2, the operation of incorporating the pulling side end of the string to the window portion and the through-holes, and the cord of the hole edge of the hole edge and oval window of the circular through-holes in the corresponding portions By being pinched, a reliable retaining lock can be provided.

  The best mode of the present invention will be described with reference to the drawings. FIG. 1 shows the appearance of the strap fastener, FIG. 2 shows the details of the strap fastener, FIG. 3 shows the state when the strap fastener is in use, and FIG. 4 shows a single case constituting the strap fastener. FIG. 5 shows a single slider constituting the string fastener. In the following description, the structural features and the operational features will be described in detail.

(Structural Features) The string fastener 3 of the embodiment is composed of three points of a flat cylindrical case 1 and two sliders 2 and 2, and is enlarged on the drawing, but actually becomes considerably small. ing. Both the case 1 and the slider 2 are resin injection-molded bodies, and both have a simple shape and excellent mass productivity.

  Here, as shown in FIGS. 1 and 4, the case 1 has a flat cylindrical shape and is defined by upper and lower surfaces 10 and 11, both end surfaces 12 and 12, and both side surfaces 13 and 13. . The upper and lower surfaces 10 and 11 have a convex curved surface with an extremely loose upper surface 10 and a concave curved surface with an extremely loose lower surface 11, with the windows 15a and 15b and 16a and 16b penetrating vertically. Is provided. Each window has a long oval shape. Further, the inside of the case 1 penetrates between both end faces 12 and 12 in a rectangular space. Reference numeral 14 denotes an inner space, and reference numeral 14 a denotes an opening penetrating each end face 12 communicating with the inner space 14. However, the inside of the case 1 only needs to have a predetermined length of internal space that opens to both end faces and communicates with the opening in front of the case 1.

  Reference numerals 15a and 16a denote window portions on the upper surface 10, and reference numerals 15b and 16b denote window portions on the lower surface 11. Further, although not denoted by reference numerals, the lower edge of the holes of the windows 15a and 16a, the lower edge of the holes of the windows 15b and 16b, and the upper edge of the hole of each window are likely to bite into the corresponding portions of the string 4. It is formed as an edge part.

  As shown in FIGS. 1 and 5, each slider 2 includes a substantially tongue-like insertion plate portion 20 and a button portion 21 provided on the rear end surface of the insertion plate portion 20. The insertion plate portion 20 has a shape that is inserted into the case-side inner space 14, and includes two through holes 22 and 23 that allow the string 4 to pass therethrough and protrusions 24 that protrude from the upper and lower surfaces. Reference numeral 25 denotes a recess provided in front of the button portion 21 on the upper and lower surfaces of the insertion plate portion 20. As can be seen from FIG. 5 (e), the through holes 22 and the through holes 23 are formed in the edge portions 22 a and 23 a so that the upper and lower edges of each hole can easily bite into the corresponding portions of the string 4.

  Each of the through holes 22 and 23 has a circular shape with the same diameter, and has a size that allows both to fit in the window portions (15a, 15b or 16a, 16b) as inferred from FIG. The protrusion 24 is located between the front through hole 22 and the rear through hole 23 on the upper and lower surfaces of the insertion plate portion 20 and protrudes from the middle portion of the plate width. And each protrusion 24 is located in a corresponding window part (15a, 15b or 16a, 16b) in the state in which each slider 2 was inserted in the corresponding internal space 14 from the opening 14a of both ends with respect to the case 1, When the slider 2 is slid in the pulling direction, it hits the inner periphery of the corresponding window (15a, 15b or 16a, 16b) and functions as a stopper that prevents it from coming out any further.

The button portion 21 has a size that covers the case-side opening 14a from the outside in an invisible state with the insertion plate portion 20 inserted into the inner space 14 of the case 1 to the maximum. Further, the button portion 21 has a plurality of convex portions 21a projecting on the outer surface, and when the slider 2 is pushed into the case 1, the presence of the convex portion 21a makes it difficult for a finger or the like to slip. Yes.

(Functional Features) As shown in FIG. 3 as an example of application, the above-described string fastener 3 pulls both ends 4a and 4a of the string 4 arranged around the opening edge of the bag body from different directions. It is used in the case where the length is locked so as to be adjustable. That is, in this embodiment, as shown in FIG. 3A, the left end 4a is drawn to the left side of the string fastener 3, and the lower window 15b, the front through hole 22, and the upper window 15a. , It is passed through the rear through-hole 23 and the lower window portion 15b and drawn out to the corresponding inside of the string 4. Similarly, the left end 4a on the right side is also drawn to the right side of the string fastener 3, and the lower window 16b, the front through hole 22, the upper window 16a, the rear through hole 23, the lower It is passed through the side window 16b and pulled out to the corresponding inner side of the string 4.

  Then, the string 4 is pulled and operated in the direction of the arrow in FIG. 3B where both ends 4a and 4a are different from the above set state. Then, in the string fastener 3, the sliders 2 on both sides receive the stress in the pulling direction of the corresponding end 2a, and in the same direction as the stress, that is, the left slider 2 protrudes from the corresponding end of the case 1, The slider 2 is slid in the right direction protruding from the corresponding end of the case 1. That is, each slider 2 is slid so as to shift a portion where the rear through hole 23 is formed to the corresponding opening 14 a side of the inner space 14. Then, the string fastener 3 has a corresponding portion of each pull side end portion 4a between the corresponding hole peripheral surface portion of the upper and lower window portions 15a and 15b and the corresponding hole peripheral surface portion of the through hole 23, or the upper and lower window portions. It clamps between the corresponding hole peripheral surface part of 16a, 16b and the corresponding hole peripheral surface part of the through-hole 23, and it latches so that the pull side edge part 4a, 4a of a string may not come off.

  In this locked state, in particular, the lower edge of the hole of the window portion 15a and the edge portion of the upper and lower edges of the window portion 15b and the edge portion 23a of the upper and lower edges of the through hole 23 bite the corresponding portions of the string 4. 3 (b), the string portion pulled out from the lower window portion 15b or the window portion 16b out of each pull side end portion 4a is positioned before being inserted into the window portion 15b or the window portion 16b. ) In the opposite direction of the arrow (under tension in the opposite direction to the arrow) and the state of being sandwiched between the corresponding part of the case 1 and so on, and so on.

  Further, when releasing the lock of the string 4 or loosening the pulling degree, the button 21 is pushed to the corresponding end face side of the case 1. Then, the string fastener 3 is slid into the inner space 14 and is switched to the set state similar to that shown in FIG. 3A, and the pull side end 4a is pulled back. Since this unlocking operation is not performed against the biasing force of the biasing means as in the conventional structure, the latch can be released with a relatively weak pressing force.

  Compared to the conventional structure, the string fastener 3 as described above only needs to manufacture the case 1 and the slider 2, and the assembly work is simplified by the amount not using the urging means, so that the cost can be reduced. By omitting the arrangement space for the urging means, further reduction in size and weight can be realized, which makes it suitable for, for example, baby clothes and other personal belongings, and can be expected to expand applications.

  In addition, the above form does not restrict | limit this invention at all. The string fastener of the present invention only needs to substantially include the technical elements specified in the claims, and the details can be variously changed and deployed as necessary.

It is a schematic perspective view which shows the string fastener of a form example. (A) is the top view of the said string fastener, (b) is an end view, (c) is a side view, (d) is the sectional view on the AA line of (a). (A) is sectional drawing which shows the state which hooked the pull side edge part of the string to the said string fastener, respectively, (b) is a schematic cross section which shows the state which pulled and operated the pull side edge part of each string to a different direction. is there. The single case of the strap fastener is shown, (a) is a top view, (b) is an end view, (c) is a bottom view, and (d) is a cross-sectional view taken along line BB of (a). FIG. 3A shows a single piece of the strap fastener, wherein (a) is a top view, (b) is a right end view, (c) is a left end view, (d) is a side view, and (e) is a C- FIG.

1 ... Case (10 is upper surface, 11 is lower surface, 12 is end surface, 13 is side surface)
2 ... Slider 3 ... String fastener 4 ... String (4a is the pulling end)
DESCRIPTION OF SYMBOLS 20 ... Plug-in board part 21 ... Button part 22, 23 ... String through-hole 22a, 23a ... Edge part 24 ... Protrusion (prevention means)
DESCRIPTION OF SYMBOLS 14 ... Interior space 14a ... Opening 15a, 15b ... Upper and lower window part 16a, 16b ... Upper and lower window part

Claims (2)

A slider forming a string through hole, the slider is slidably disposed in the inner space from the opening on the end face side, and a window portion that can communicate with the through hole is formed on the upper and lower surfaces facing each other. A string, and the string cannot be removed by shifting the position of the through hole with respect to the window portion through sliding of the slider from the state where the pull side end portion is passed through the window portion and the through hole. In the string fastener that makes it possible to lock,
It consists of a three-point configuration of the case and a pair of sliders,
The case has the inner space and the window on both sides,
Each of the sliders is provided with a substantially tongue-like insertion plate portion having two through holes, and a corresponding end of the insertion plate portion, and the insertion plate portion reaches a maximum in the space in the case. A button portion that covers the opening of the case in an invisible state from the outside in an inserted state, and a retaining means that is provided on the insertion plate portion so as not to be inadvertently detached from the case. The insert plate portion is independently arranged in the inner space on both sides of the case,
At least one of the through hole and the window portion is provided with an edge portion that bites into a corresponding portion of the string,
Each slider is slid by a pulling operation in a different direction from a state in which the pulling side end portion of the string is guided to the both sides of the case from the different direction and passed through the corresponding window portion and each through hole. The string fastener is characterized in that it can be locked in a state in which the edge part bites against the corresponding part of the string.   2. The string fastener according to claim 1, wherein each of the through holes has a circular shape, and the window portion has an oval shape having a size capable of exposing each of the through holes.

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