CN112690549B

CN112690549B - Case with four sides capable of being opened and closed

Info

Publication number: CN112690549B
Application number: CN202011530165.1A
Authority: CN
Inventors: 杨海银; 杨海淼; 杨银丰
Original assignee: Shanghai Baosu Aloyco High Molecular Material Co ltd
Current assignee: Shanghai Baosu Aloyco High Molecular Material Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2023-01-31
Anticipated expiration: 2040-12-22
Also published as: EP4265146A1; WO2022133989A1; CN112690549A; EP4265146A9; AU2020483160A1; JP2024500252A

Abstract

A case with four sides capable of being opened and closed comprises a case body and a zipper assembly. The box body comprises an upper cover and a lower cover. The zipper assembly comprises a double-layer zipper, two sliders and two insert rods. The double-layer zipper comprises an upper chain and a lower chain. The two sliders are identical in structure and the sliders include a disengagement side and an engagement side. When the two sliders are arranged on the upper and lower stringers, the disengagement sides of the two sliders are arranged to face each other. The two insert rods have the same structure and are arranged at the same end part of the double-layer zipper. Each of the insert rods includes a tapered structure, and the other end of the double-layer zipper is disposed opposite to the tapered structures of the two insert rods when the double-layer zipper is assembled on the upper and lower covers. The case with four sides capable of being opened and closed can be opened at the butt joint position of the ends of the upper chain and the lower chain, so that the case can be opened at any position.

Description

Case with four sides capable of being opened and closed

Technical Field

The invention relates to the field of articles for daily use, in particular to a case with four sides capable of being opened and closed.

Background

The case is the most common living article for people, provides the function of conveniently carrying articles, has obvious era characteristic and is accompanied with obvious fashion characteristic. In order to reflect these characteristics clearly, various materials, structures, beauty and performance for manufacturing bags have been developed and tested. Common cases are generally portable or push-pull. For a suitcase, the suitcase is convenient to use, but the suitcase is generally small in size and not suitable for storing a large number of articles. The push-pull type luggage has larger volume, a large number of stored articles and heavy weight, so the convenience in use becomes the key point of the push-pull type luggage.

However, these push-pull cases mainly comprise a case body and a case cover, the back cloth pieces of the case body and the case cover are sewn or hinged to form an integrated structure, and the case cover can be opened only at the front side. When the luggage is placed or stored with the front side not facing outward, the user must move the luggage first to adjust the luggage to the front side facing outward to open the case cover smoothly, which results in inconvenient taking and placing of articles. In addition, when traveling, sometimes the user cannot take things out of the case, such as plane and train, at the moment, the case needs to be opened, and the existing case can only be horizontally placed on the ground and the zipper is unzipped to open the case. This obviously causes a lot of trouble to the user.

Disclosure of Invention

In view of the above, the present invention provides a four-side-opening/closing suitcase convenient for use, so as to solve the above problems.

A suitcase with four sides capable of being opened and closed comprises a suitcase body and a zipper assembly arranged on the suitcase body. The box body comprises an upper cover and a lower cover which are mutually covered. The zipper assembly comprises a double-layer zipper, two sliders and two insert rods, wherein the two sliders are arranged on the double-layer zipper respectively, and the two insert rods are arranged on the double-layer zipper. The double-layer zipper comprises an upper chain arranged on the upper cover and a lower chain arranged on the lower cover and coupled with the upper chain. The two sliders are identical in construction and each slider includes a disengagement side and an engagement side opposite the disengagement side. When the two sliders are arranged on the upper and lower stringers, the disengagement sides of the two sliders are arranged to face each other. The two insert rods have the same structure and are arranged at the same end part of the double-layer zipper. Each plunger includes a tapered structure, and the other end of the double-layer zipper is disposed opposite to the tapered structures of the two plungers when the double-layer zipper is assembled to the upper and lower covers.

Further, when the two sliders are arranged on the upper and lower stringers, the engaging sides of the two sliders are arranged to be opposite to each other.

Further, when assembling the two sliders, the two insert pins are inserted from the disengaging side of one slider, and the other slider is inserted from the engaging side.

Furthermore, the four-side-opening luggage further comprises two stop tooth parts, and the two stop tooth parts are respectively arranged at the butt joint of the two end parts of the double-layer zipper.

Further, the tooth stopping part comprises two soft materials, and the two soft materials are respectively coated at the butt joint position of the two ends of the double-layer zipper.

Furthermore, two end parts of the upper chain and the lower chain are respectively arranged in a flush mode, and the two tooth stopping parts are respectively arranged on the upper chain and the lower chain and are arranged in a separated mode.

Further, each of the plungers includes a body, a first cutting surface provided on the body, and a second cutting surface provided between the first cutting surface and a side surface of the body, the first and second cutting surfaces causing the plunger to have the tapered configuration.

Furthermore, the first cutting surfaces of the two insert rods are arranged oppositely, and the two second cutting surfaces are positioned on the same side of the two insert rods.

Further, the teeth of the upper and lower chains are made of plastic, and the tapered structures are formed by sintering.

Furthermore, the luggage with four sides capable of being opened and closed further comprises a lock, the lock is arranged beside the butt joint of the two ends of the double-layer zipper, and the lock is used for being locked with the pulling piece of the pulling head.

Compared with the prior art, the four-side-opening-closing luggage provided by the invention adopts the double-layer zipper, which is an explosion-proof zipper, and after the luggage is pulled to be closed, the luggage cannot be opened by any sharp device on the premise of not damaging the double-layer zipper, so that the four sides of the luggage can be opened and closed possibly. And because the two ends of the upper and lower chains of the double-layer zipper are respectively provided with an inserting rod, the inserting rod is provided with a conical structure, and the conical structure is opposite to the other ends of the upper and lower chains. Due to the existence of the insert rod, the two sliders arranged in opposite directions can be assembled on the double-layer zipper, namely, the insert rod is inserted from the disengaging side of one slider and inserted from the engaging side of the other slider, so that the disengaging sides of the two sliders are arranged in opposite directions, the two sliders are opened or closed in opposite directions respectively, the abutting positions of the ends of the upper and lower chains of the two sliders can be located at any position, and the four-side opening and closing purpose can be achieved. Since the two insert pins are inserted from the coupling side of one slider and from the decoupling side of the other slider, the abutting positions of the ends of the upper and lower links are not overlapped but flush, which is not only aesthetic, but also can be opened at the abutting positions of the ends of the upper and lower links, thereby allowing the case to be opened at any position.

Drawings

Fig. 1 is a schematic diagram of a partially exploded structure of a four-side-openable luggage provided by the invention.

Fig. 2 is a schematic structural view of a slider included in the four-sided openable and closable case of fig. 1.

Fig. 3 is a partially enlarged schematic view of the four-sided opening and closing bag of fig. 1 at a.

Fig. 4 is a schematic structural view of a plunger included in the four-sided openable and closable case of fig. 1.

Detailed Description

Specific examples of the present invention will be described in further detail below. It should be understood that the description herein of embodiments of the invention is not intended to limit the scope of the invention.

As shown in fig. 1 to 4, which are schematic structural views of a four-side-opening/closing case provided by the present invention. The four-side-opening case comprises a case body 10, a zipper assembly 20 arranged on the case body 10, and two stop tooth parts 30 arranged on the zipper assembly 20. It is contemplated that the four-sided suitcase may include other functional modules, such as handles, tie bar assemblies, pulley assemblies, etc., which are well known to those skilled in the art and will not be described in detail herein.

The box body 10 may be a box-shaped structure formed by thermoplastic molding of plastic or sewing of cloth, and specifically, the box body 10 may be a draw-bar box, a backpack or a backpack, or other types of bags, and so on. The case 10 includes an upper cover 11 and a lower cover 12 that are fastened to each other. The upper cover 11 and the lower cover 12 have substantially the same structure, and when the upper cover 11 and the lower cover 12 are fastened together, a space is formed for a user to receive articles.

The zipper assembly 20 includes a double-layered zipper 21, two sliders 22 respectively provided on the double-layered zipper 21, and two insert pins 23 provided on the double-layered zipper 21. The double-layer zipper 21 is an explosion-proof zipper, so that after the double-layer zipper 21 is closed, the case can not be opened by any sharp device on the premise of not damaging the double-layer zipper 21, and the case can be opened and closed at four sides. Because for the case provided with the single-layer zipper, a large number of experiments prove that the zipper can be opened only by using a sharp hard object. This makes the single-layer zipper unsuitable for 360-degree opening and closing because the entire case is completely opened by merely poking the single-layer zipper. The double-layer zipper 21 is a prior art, such as that disclosed in patent No. 201220248939.6 entitled single-head double-layer zipper, and the structure and operation thereof will not be described in detail herein, and specifically, the double-layer zipper 21 includes an upper chain 211 sewn on the upper cover 11 and a lower chain 212 sewn on the lower cover 12. The two sliders 22 have the same structure, and the specific structure thereof is disclosed in patent No. 201220248939.6, which is not described herein again. The slider 22 includes a release side 221 and an engagement side 222 opposite the release side 221. To achieve the four-sided opening and closing, when the two sliders 22 are disposed on the upper and

lower stringers

211, 212, the disengaged sides 221 of the two sliders 22 are disposed to face each other, that is, when the two sliders 22 are assembled, one end of the upper and

lower stringers

211, 212 is inserted from the disengaged side 221 of one slider 22 and is inserted from the engaged side 222 of the other slider 22. And thus the engaging sides 222 of the two sliders 22 are disposed opposite each other when the two sliders 22 are disposed on the upper and

lower links

211, 212. Both the insert rods 23 are provided with the same end of the upper and

lower chains

211, 212 and have a tapered structure. The plunger 23 may be made of metal or plastic. When the teeth of the upper and

lower links

211, 212 are made of plastic, the tapered structure of the insert pin 23 can be formed by sintering, i.e., by burning or melting the teeth at a high temperature, and then extruding the teeth into a tapered structure by a tapered die. The conical structure can be in a frustum shape or a conical tip shape. If the insert pin 23 does not have the tapered structure, the ends of both the insert pin 23 and the upper and

lower pull chains

211, 212 are flush, so when the ends of the upper and

lower pull chains

211, 212 are inserted into the engaging side 222 of the slider 22, the flush structure will abut against the connecting posts of the two flat plates of the slider 22, thereby preventing the engaging side 222 of the slider from being assembled to the upper and

lower links

211, 212. And since both the insert pins 23 have the tapered structure, both the upper and

lower stringers

211, 212 can be inserted and assembled to the double-layer stringer 21 from the engaging side 222 of the slider. In this embodiment, the plunger 23 is made of metal to facilitate multiple uses and industrial manufacturing. The plunger 23 thus comprises a body 231, a first cutting surface 232 arranged on the body 231, and a second cutting surface 233 arranged between the first cutting surface 232 and the side of the body 231. The body 231 may be a tubular structure, which is sleeved on the ends of the upper and

lower chains

211, 212. The first cutting surface 232 is disposed at one side of the body 231 and is wedge-shaped to facilitate forming a taper. The second cutting surface 233 is disposed at the side of the first cutting surface 232 and the body 231, and the second cutting surface 233 is also wedge-shaped, thereby forming the tapered structure. When the two insert pins 23 are assembled to the upper and

lower chains

211, 212, the first cutting surfaces 232 of the two insert pins 23 are disposed opposite to each other, i.e., face to face, and the second cutting surfaces 233 are disposed on the same side of the two insert pins 23 to facilitate the insertion of the insert pins 23. When assembling two of the sliders 22, the two insert pins 23 are inserted from the disengaging side 221 of one slider 22 and from the engaging side 222 of the other slider 22, so that the two sliders 22 are disposed facing each other.

The tooth stop portion 30 may be made of two pieces of soft material, such as leather, cloth, leather, etc. The two tooth-stopping portions 30 are respectively disposed at the butt joint of the two ends of the double-layer zipper 21, and specifically, the two soft materials are respectively wrapped at the butt joint position of the two ends of the double-layer zipper 21, that is, the two insert rods 23 are wrapped at one end of the upper and

lower chains

211, 212 and are respectively sewn on the upper and

lower covers

11, 12. Due to the presence of the tooth stopper 30, the two sliders 22 can be prevented from falling off from both ends of the double-layered slide fastener 21 while achieving an aesthetic effect. Further, two end portions of the upper and

lower chains

211, 212 are respectively arranged in a flush manner, and the two tooth-stopping portions 30 are respectively arranged on the upper and

lower chains

211, 212 and are separately arranged, so that the upper and

lower covers

11, 12 can be opened at the positions, and the purpose of opening and closing at any positions can be achieved. Of course, it is conceivable that the tooth stoppers 30 may be made of two pieces of metal sheets, which are respectively disposed on the inner and outer sides of the upper and

lower covers

11, 12 and then fixed with screws or rivets.

In addition, as in the case of the prior art, the four-side-opening case further includes a lock (not shown) disposed beside the joint of the two ends of the double-layer zipper 21, and the lock is used to lock the case by engaging with the pull tab of the pull head 22, so as to prevent the case from being opened by an unauthorized person or by accident.

Compared with the prior art, the four-side-opening-closing luggage provided by the invention is provided with the double-layer zipper 21 which is an explosion-proof zipper, and after the four-side-opening-closing luggage is closed, no matter what sharp device is used, the luggage can not be opened on the premise of not damaging the double-layer zipper 21, so that the four sides of the luggage can be opened and closed possibly. And since the two ends of the upper and

lower chains

211, 212 of the double-layered slide fastener 21 are respectively provided with one insert pin 23, the insert pin 23 has a tapered structure which is disposed opposite to the other ends of the upper and

lower chains

211, 212. Due to the existence of the insert rod 23, two sliders 23 arranged oppositely can be assembled on the double-layer zipper 23, namely, the two insert rods 23 are inserted from the disengaging side 221 of one slider 22 and inserted from the engaging side 222 of the other slider 22, so that the disengaging sides 221 of the two sliders 22 can be arranged oppositely, and the two sliders 22 can be opened or closed in opposite directions respectively, and the butt joint position of the two sliders 22 except the ends of the upper and

lower chains

211 and 212 can be positioned at any position, and the purpose of four-side opening and closing can be achieved. Since the two insert pins 23 are inserted from the disengaging side 221 of one slider 22 and from the engaging side 222 of the other slider 22, the positions where the ends of the upper and

lower links

211, 212 are butted are no longer overlapped but are in a flush state, which is not only aesthetic, but also can be opened at the position where the ends of the upper and

lower links

211, 212 are butted, thereby allowing the bag to be opened at any position.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, and any modifications, equivalents or improvements that are within the spirit of the present invention are intended to be covered by the following claims.

Claims

1. A case and bag that four sides opened and shut which characterized in that: the four-side-opening luggage comprises a case body and a zipper assembly arranged on the case body, wherein the case body comprises an upper cover and a lower cover which are mutually covered, the zipper assembly comprises a double-layer zipper, two sliders respectively arranged on the double-layer zipper and two insert rods arranged on the double-layer zipper, the double-layer zipper comprises an upper zipper chain arranged on the upper cover and a lower zipper chain arranged on the lower cover and coupled with the upper zipper chain, the two sliders are of the same structure, each slider comprises a disengaging side and a meshing side opposite to the disengaging side, the disengaging sides of the two sliders are oppositely arranged when the two sliders are arranged on the upper zipper chain and the lower zipper chain, the two insert rods have the same structure and are arranged at the same end part of the double-layer zipper, each insert rod comprises a conical structure, each insert rod comprises a body, a first cutting surface arranged on the body and a second cutting surface arranged between the first cutting surface and the side surface of the body, when the two sliders are assembled on the same side of the double-layer zipper, the two insert rods are assembled from the upper cutting surface and the other cutting surface, when the two insert rod of the two insert rod is assembled on the same side of the double-layer zipper, the two insert rods, the two cutting surfaces of the two insert rod are assembled on the upper cutting surface, and the other insert rod assembly side of the double-layer zipper assembly, the two cutting surface, the two cutting surfaces of the two insert rod assembly, the two cutting surfaces of the two slider are assembled on the two cutting surfaces, and the two cutting surfaces of the two slider.

2. A four-sided folding case as defined in claim 1, wherein: when the two sliders are arranged on the upper and lower chains, the meshing sides of the two sliders are arranged oppositely.

3. A four-sided folding case as defined in claim 1, wherein: the four-side-opening-closing luggage further comprises two stop tooth parts, and the two stop tooth parts are respectively arranged at the butt joint of the two end parts of the double-layer zipper.

4. A four-sided folding case as defined in claim 3, wherein: the tooth stopping part comprises two soft materials, and the two soft materials are respectively coated at the butt joint position of the two ends of the double-layer zipper.

5. A four-sided folding luggage as claimed in claim 4, wherein: two ends of the upper chain and the lower chain are respectively arranged in a flush mode, and the two tooth stopping portions are respectively arranged on the upper chain and the lower chain and are arranged in a separated mode.

6. A four-sided folding luggage as defined in claim 1, wherein: the teeth of the upper and lower chains are made of plastic, and the conical structures are formed by sintering.

7. A four-sided folding case as defined in claim 1, wherein: the four-side-opening luggage further comprises a lock, the lock is arranged beside the butt joint of the two ends of the double-layer zipper, and the lock is used for being locked with the pulling piece of the pulling head.