Abstract

A zipper strap structure according to an embodiment includes a first strap, a second strap disposed side by side with the first strap, an internal coupling unit, and an external coupling unit. According to the invention, the internal and external coupling of the zipper strap structure is performed with very high accuracy and precision. In addition, when the zipper strap structure is operated, a user can intuitively recognize whether the zipper strap structure is opened or closed by senses of touch and hearing. Since a user can effectively seal contents by the internal and external coupling of the zipper strap structure and can clearly recognize an operation state of the zipper by senses of touch and hearing, the user does not have to perform repeated checking of whether or not a zipper is completely closed, unlike the related art.

IPC Classes  ?

• A44B 19/16 - Interlocking member having uniform section throughout the length of the stringer
• A44B 19/26 - Sliders
• B65D 33/25 - RivetingDovetailingScrewingEnd- or aperture-closing arrangements or devices using press buttons or slide fasteners

Abstract

A zipper strap structure according to an embodiment includes a first strap, a second strap disposed side by side with the first strap, an internal coupling unit, and an external coupling unit. According to the invention, the internal and external coupling of the zipper strap structure is performed with very high accuracy and precision. In addition, when the zipper strap structure is operated, a user can intuitively recognize whether the zipper strap structure is opened or closed by senses of touch and hearing. Since a user can effectively seal contents by the internal and external coupling of the zipper strap structure and can clearly recognize an operation state of the zipper by senses of touch and hearing, the user does not have to perform repeated checking of whether or not a zipper is completely closed, unlike the related art.

IPC Classes  ?

• A44B 19/16 - Interlocking member having uniform section throughout the length of the stringer
• A44B 19/26 - Sliders
• B65D 33/25 - RivetingDovetailingScrewingEnd- or aperture-closing arrangements or devices using press buttons or slide fasteners

Abstract

A tape winding drum according to one embodiment of the present invention is provided. A tape winding drum according to one embodiment of the present invention may comprise: a cylindrical core part; a bobbin, which is formed in a disk shape having a diameter larger than that of the core part, and includes a pair of flange parts coupled, respectively, to both end parts of the core part; tape, which is wound around the core part to form a coil part, and has a starting end part, which is the end part of a side starting winding around the core part and is exposed to the outside of the coil part so as to come into close contact with the inner side of the flange part; and a tape fixing part for fixing, to the inner side of the flange part, the starting end part and/or an end part of the tape.

IPC Classes  ?

• B65H 75/28 - Arrangements for securing ends of material
• B65H 16/02 - Supporting web roll
• B65H 16/10 - Arrangements for effecting positive rotation of web roll
• B65H 23/185 - Registering, tensioning, smoothing, or guiding webs longitudinally by controlling or regulating the web-advancing mechanism, e.g. mechanism acting on the running web in unwinding mechanisms or in connection with unwinding operations motor-controlled
• C09J 7/20 - Adhesives in the form of films or foils characterised by their carriers

Abstract

Provided are a zipper strap structure, a packaging bag comprising the zipper strap structure, and a method for manufacturing the zipper strap structure. The zipper strap structure comprises: a first strap; a second strap positioned parallel to the first strap; a male coupling part; and a female coupling part. The male coupling part comprises: a pillar portion protruding from the first strap toward the second strap and extending along the length direction of the first strap; and a head portion having a pair of latching protrusions, which expand from the end of the pillar portion along the width direction of the first strap, extend in opposite directions from each other, and extend along the length direction of the first strap, and central dividing groove which is formed on the outer surface of the end between the latching protrusions to be depressively indented toward the pillar portion, and extends along the length direction of the first strap. The female coupling part comprises: a pair of wall body portions protruding from the second strap toward the first strap, extending along the length direction of the second strap, and disposed away from each other with an accommodation space, for accommodating the head portion, therebetween; and a pair of hook portions bent toward the accommodation space from the ends and extending along the length direction of the second strap so as to be latched to the latching protrusions.

IPC Classes  ?

• A44B 19/16 - Interlocking member having uniform section throughout the length of the stringer
• A44B 19/24 - Slide fasteners Details
• B65D 33/25 - RivetingDovetailingScrewingEnd- or aperture-closing arrangements or devices using press buttons or slide fasteners
• B29C 48/03 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor characterised by the shape of the extruded material at extrusion
• B29L 5/00 - Elements of slide fasteners

Abstract

A child safety zipper includes a first zipper strip that is attached to an inside wall on one side of a plastic bag and a second zipper strip that is attached to an inside wall on the other side of the plastic bag and is coupled to the first zipper strip to seal the plastic bag.

IPC Classes  ?

• B65D 33/25 - RivetingDovetailingScrewingEnd- or aperture-closing arrangements or devices using press buttons or slide fasteners

Abstract

The present invention relates to a tamper-proof zipper which can achieve a firm coupling so as to effectively prevent a plastic bag from being illegally opened, and a tamper-proof zipper bag including same, and comprises: a first zipper strip including a first band portion, a first connection portion, a first base portion, a first hook portion including a first inner hook portion and a first outer hook portion, and a first support; and a second zipper strip including a second band portion, a second connection portion, a second base portion, a second hook portion including a second inner hook portion and a second outer hook portion, and a second support, and being coupled to the first zipper strip to seal the plastic bag, wherein the first connection portion and the second connection portion deviate respectively from the centers of the first band portion and the second band portion and biased to one side.

IPC Classes  ?

• A44B 19/16 - Interlocking member having uniform section throughout the length of the stringer
• B65D 33/25 - RivetingDovetailingScrewingEnd- or aperture-closing arrangements or devices using press buttons or slide fasteners

Abstract

A child safety zipper according to one embodiment of the present invention comprises: a first zipper strip attached to the inner wall of one side of a plastic bag; and a second zipper strip which is attached to the inner wall of the other side of the plastic bag, and which is coupled to the first zipper strip so as to seal the plastic bag.

IPC Classes  ?

• B65D 33/25 - RivetingDovetailingScrewingEnd- or aperture-closing arrangements or devices using press buttons or slide fasteners

Abstract

An embodiment of the present invention provides a lightweight and sturdy bobbin for winding a tape by using a simple structure to increase the strength of a paper bobbin which is vulnerable to external impact. The bobbin for winding a tape is made of paper and can thus be completely recycled, the bobbin comprising: a first support plate and a second support plate which are composed of a disc-shaped paper board having a through-hole formed in the center, and are arranged in parallel and facing each other; a support core in which a single paper board is folded in a prismatic shape and interposed between the first support plate and the second support plate, and of which both ends are recess-and-protrusion-coupled to the first support plate and the second support plate, respectively; and a cylinder support that is formed as a paper cylinder and fitted to the outer peripheral surface of the support core.

IPC Classes  ?

• B65H 75/22 - Constructional details collapsibleConstructional details with removable parts