JP2002191414A - Slide fastener - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a slider fastener which can completely prevent itself from catching or biting clothing, skin, or the like thereinto. SOLUTION: In this slide fastener which is designed to open and close elements 2 and 2 secured in parallel along the hem parts facing each other of a pair of right and left fastener tapes and by sliding with a slider 3 having a pull, the side, where the elements 2 and 2 are engaged with each other or released, of both upper and lower faces 5A and 6A of the slider 3A are so arranged as to be protruded T1 and T2 being expanded horizontally forward while a retaining part 9 such as a pawl is formed at the end part of the upper face. Moreover, the end part of the lower face is curved downward gently to make a recessed retaining part 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a safe slide fastener which can be smoothly operated and is not caught, and is free from being caught or biting into the skin.

[0002]

2. Description of the Related Art Slide fasteners of this kind are widely used for various purposes.

[0003] In particular, for clothes, woven fabrics, knits and the like, outerwear, trousers or down coats, jumpers, and the like are widely used together with buttons or as substitutes for buttons.

FIG. 3 shows a conventional example. Reference numerals 1 and 1 denote left and right fastener tapes, 2 and 2 elements and 3 a slider having a handle 4 which is attached via a retaining ring 7 to either one of the upper and lower surfaces 5 and 5 having the same shape. Reference numeral 8 denotes a partition guide provided at the front of the upper and lower surfaces 5, 5.

[0005]

However, in the conventional slide fastener, no special consideration is given to the upper and lower surfaces 5, 5 on the side where the elements 2, 2 in the traveling direction of the slider 3 are engaged. In use, in particular, the slider 3 is moved upward from the bottom, such as the top, so that the element 2,
When the slider 2 is locked and reaches the uppermost end, the front end of the lower surface 5 of the front surface of the slider 3 may bite into skin such as the neck, causing unexpected inconvenience.

Still, in the case of trousers, when the slider 3 reaches the lowermost end by disengaging the elements 2 and 2 from top to bottom, the handle 4 of the slider 3 often bites into the sewing portion. Upon completion of the operation, there is an inconvenience that the finger is not caught and the slider 3 cannot be raised.

In addition, during operation of the slider 3, there is another inconvenience such as entanglement of the fabric.

The present invention has been made by paying attention to the points described above, and can be used safely without biting or entanglement of the sewing portion of the skin or clothing, and can be easily entangled with a finger instead of the handle. It is an object of the present invention to provide a slide fastener which can release biting and biting.

[0009]

The present invention can solve the above-mentioned problems by providing the following constitution.

(1) A slide fastener in which elements fixed in parallel to opposite edges of a pair of left and right fastener tapes can be opened and closed by sliding a slider having a handle. The side to be engaged and released is enlarged and protruded in the left-right direction toward the front, and a locking portion such as a claw is formed at the end of the upper surface, and the end of the lower surface is gently curved downward. A slide fastener characterized in that the slide fastener is formed as a concave locking portion.

(2) The slide fastener according to (1), wherein the upper and lower surfaces of the slider protrude in a fan shape, and the lower surface is made to protrude forward more than the upper surface.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below.

The structures of a handle 4 and a partition guide 8 attached by a pair of left and right fastener tapes 1, 1, elements 2, 2 and a retaining ring 7 are substantially the same as those of the conventional example.

In the present embodiment, the configuration of the upper and lower surfaces 5A and 6A constituting the slider 3A is different.
Upper surface 5A is an element 2,2 engaged, projecting the side to open the enlarged乍Ra fan in the horizontal direction toward the front T ₁
At the same time, a locking portion 9 to which a nail or the like can be locked is formed at the end. Further, the lower surface 6A extends in the left and right direction toward the front longer than the upper surface 5A, and protrudes in a fan shape T _2.
At the same time, the end portion is gently bent downward to form a concave locking portion 10 which can be easily pulled by the fingertip.

The upper and lower surfaces 5A, 6A have different sizes in the embodiment, but the lower surface 6A may be the same as the upper surface 5A.

With the above construction, when the sliders 3A engage and disengage the elements 2 and 2, the upper and lower surfaces 5A and 6A of the slider 3A expand right and left to the side where the elements 2 and 2 are engaged and released. The protrusions T ₁ and T ₂ meanwhile eliminate the inconvenience of involving the end of clothes or the like.
Although it is provided with a concave locking portion 10 formed by a finger or a finger head, it is not sharp and has an inflection structure, so that it is possible to prevent the phenomenon of biting into the skin of the human body, especially the skin of the neck, such as in the case of upper garments, If the handle 4 is caught in the sewing area and cannot be found in the middle, such as when the zipper is opened with pants, etc., the hooks 9 and 10 on both surfaces 5A and 6A can be easily hooked with fingers or toes to find the slider 5A. 3A can be operated efficiently.

[0017]

According to the present invention, there is an advantage that the inconvenience such as biting, entanglement, and catching of clothes caused by opening and closing operations of the slider can be improved and the clothes can be used comfortably.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a slide fastener according to the present invention.

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is an explanatory plan view of a conventional example.

[Explanation of symbols]

1,1 fastener tape 2, 2 elements 3,3A slider 5,5A upper surface 6A lower surface 8 partitioning guide portion 9 engaging portion 10 recessed retaining portion T ₁ of the, T ₂ projects

Claims (2)

[Claims] 1. A slide fastener which is capable of opening and closing elements fixed in parallel to opposing edges of a pair of left and right fastener tapes by sliding a slider having a handle. Enlarge and protrude the side to be opened and closed forward and left and right, and form a locking part such as a claw at the end of the upper surface, and furthermore, gently curve the end of the lower surface downward. A slide fastener comprising a concave locking portion. 2. The upper and lower surfaces of the slider project in a fan shape,
The slide fastener according to claim 1, wherein the lower surface is formed so as to protrude forward more than the upper surface.