A bag with adjustable handle length and internal storage space

Abstract

Disclosed is a bag with adjustable handle length and internal storage space, improving user convenience. The handle extends along a post member, the length of which can be adjusted by an extension member, and the user can change the holding method (hand or shoulder) according to the situation. In addition, the internal storage space can be adjusted by using a screw scale and a lifting line to raise or lower the floor, thereby providing the optimal space according to the number of items.

Description

Technical Field

[0001] The present invention relates to a bag, and more specifically, a bag comprising a structure that allows for adjustment of the length of the handle and the size of the internal compartments to improve wearing comfort and storage capacity. Background Technology

[0002] Most bags on the market today use a design with fixed handles and predetermined internal space, making it difficult for users to adjust the size and shape of the bag according to specific usage scenarios. For example, fixed-length handles cannot accommodate the different body shapes and usage habits of various users. Whether carried by hand or over the shoulder, if the handle length does not match the user's needs, it can easily lead to discomfort when wearing the bag or problems with the bag shifting position. While some bags use adjustable straps or belt-like adjustment devices, this design has significant flaws. It not only makes it difficult to maintain the stability of the bag's overall shape but also increases structural complexity and reduces ease of use.

[0003] In terms of internal space, traditional bags offer fixed storage capacity, failing to flexibly meet diverse storage needs. When traveling or on business trips, the fixed space may be insufficient to accommodate a large number of items; while for everyday use, oversized bags are cumbersome and inconvenient. To address this issue, some bags utilize foldable structures or compressible materials to adjust their size; however, this approach introduces new problems such as unstable internal structures and insufficient durability. In particular, existing technologies for adjusting internal space largely rely on simple folding methods, making precise control of storage space difficult.

[0004] Furthermore, bags on the market that simultaneously offer adjustable handle length and internal space are extremely rare; most designs focus only on optimizing a single function. This limitation makes existing bags unable to meet the increasingly diverse needs of users, urgently requiring innovative breakthroughs.

[0005] Therefore, it is particularly necessary to develop a bag design that can flexibly adjust the handle length according to the user's body shape and usage habits, and efficiently change the internal storage space. The application of such innovative technologies will significantly improve the wearing comfort and practicality of bags, comprehensively meeting the diverse needs of users in different scenarios.

[0006] Previous documents

[0007] [Patent Documents]

[0008] (Patent Document 1) KR 1020160067626

[0009] (Patent Document 2) KR 1020250009140

[0010] (Patent Document 3) KR 1020170017989

[0011] (Patent Document 4) KR 2020170004721 Summary of the Invention

[0012] This invention aims to increase user convenience by configuring the handle length to be adjustable, and to improve the bag's storage and utilization rate by allowing adjustment of the internal storage space. Furthermore, the joint structure between the handle and the body has been strengthened to maintain the bag's shape stability.

[0013] The present invention solves the technical problem by adopting the following technical solution:

[0014] The bag of this invention comprises two pieces of outer leather material joined on the sides and joined at the bottom to form the internal storage space. A handle is provided on one side of the bag, comprising a support member extending along the side of the main body and a gripping member. The support member maintains the bag's stability, while the gripping member provides a holding area for the user. The outer leather material surrounds the support member to ensure the bag remains upright. Furthermore, the handle is equipped with an extension, one end of which is connected to the gripping member, and the other end is inserted into the support member. The length of the handle can be flexibly adjusted by the sliding displacement of the extension.

[0015] In the design of the handle length adjustment structure, the support component is exposed in the main storage space and has a slot. The extension extends through the top of the support and passes through the slot, with one end connected to the gripping component and the other end having a locking block that engages with the slot for limiting the position. At the same time, a plastic part is embedded inside the support. This plastic part fits against the side wall of the support and covers the expansion part of the extension, ensuring smoothness and stability during the adjustment process.

[0016] To adjust the internal space of a bag, this invention includes a volume control unit. This unit comprises a screw-scale dial fixed to the bottom outer skin of the bag, a flexible area located within the interlayer between the first and second outer shells on the side of the main body, and an anchor bolt and a suspension line connecting the two. The upper part of the screw-scale dial protrudes from the bottom of the bag, and one end of the suspension line is connected to the anchor bolt, while the other end is wound around the dial. When the screw-scale dial is rotated, the suspension line expands and contracts, causing the flexible area to deform, thus raising or contracting the bottom of the bag and precisely controlling the internal storage space.

[0017] The screw dial features a three-stage rotation design: the lowest position is a fixed setting to prevent accidental operation during storage; during rotation, the dial engages with a ratchet and ratchet fixing pin to achieve equidistant positioning and provide clear adjustment feedback; in the fully unfolded state, the spiral elastomer provides elasticity to ensure the bottom surface quickly returns to its original position.

[0018] In addition, a limiter is installed inside the support component to separate the rigid fixed area and the flexible adjustment area of ​​the handle. The extension passes through the limiter and is connected to a straight elastic body below it. One end of the elastic body is fixed to the bottom of the bag, and the other end provides an upward restoring force. It works in conjunction with the spiral elastic body to ensure dual stability in terms of handle length and bag internal space adjustment.

[0019] The present invention has the following beneficial effects:

[0020] This invention improves user convenience by providing a bag with adjustable handle length and internal storage space. The handle extends along a support member, and its length can be adjusted via an extension member, allowing the user to change their grip (hand or shoulder) as needed. Furthermore, the internal storage space can be adjusted by raising or lowering the floor using a screw dial and lifting cable, thus providing optimal space based on the amount of items.

[0021] The dial is a push-rotate system that operates in three stages: fixed, adjusted, and fully opened, and can be set to the desired size via a click-stop function. The internal space utilizes a flexible, automatic expansion mechanism for intuitive use. Furthermore, the handle's design, extending along the side of the bag, provides excellent shape stability and durability even with prolonged use. This invention provides a bag that offers convenient operation and high practicality in various usage environments. Attached Figure Description

[0022] Figure 1 This is a conceptual diagram of a bag designed based on the present invention, which combines wearing convenience with bag storage function;

[0023] Figure 2 for Figure 1 A schematic diagram of the middle handle in the extended state;

[0024] Figure 3 for Figure 1 Top view cross-sectional structure of the main floor of the bag. Detailed Implementation

[0025] The embodiments are described in detail below with reference to the accompanying drawings. However, the scope of the patent application is not limited to these embodiments, as various modifications can be made to the embodiments. It should be understood that all modifications, equivalents, or substitutions to the embodiments are included within the scope of the claims.

[0026] The specific structural or functional descriptions of the embodiments are disclosed for illustrative purposes only and can be modified and implemented in various forms. Therefore, the embodiments are not limited to the specific form of disclosure, and the scope of this specification includes modifications, equivalents, or substitutions contained in the technical concept.

[0027] Terms such as "first" or "second" can be used to describe various components, but the interpretation of these terms should only be used to distinguish one component from another. For example, the first component can be named the second component, and similarly, the second component can be named the first component.

[0028] When a component is said to be "connected" to another component, it should be understood that it may be directly connected to another component or connected to another component, but there may be another component between them.

[0029] The terminology used in these embodiments is for illustrative purposes only and should not be construed as limiting. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this alternative text, the terms “comprising” or “having” should be understood to mean the presence of any feature, number, step, movement, component, part, or combination thereof as described herein, and does not exclude the presence or addition of one or more other features, numbers, steps, movements, components, parts, or combinations thereof.

[0030] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of common sense in the art field to which the embodiments pertain. Terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with the context of the relevant description and should not be interpreted in an idealistic or overly formal sense unless explicitly defined in this application.

[0031] Furthermore, when describing the embodiments with reference to the accompanying drawings, the same reference code will be provided for the same component regardless of the drawing code, and repeated descriptions will be omitted. When describing embodiments, detailed descriptions should be omitted if it is determined that a detailed description of the relevant notifying technology may unnecessarily obscure the essential points of the embodiment.

[0032] The advantages and features of the present invention, as well as the methods of implementing them, will become clear from the embodiments described in detail with reference to the accompanying drawings. However, the invention is not limited to the embodiments disclosed below, but will be practiced in various different forms only to ensure that the disclosure of the invention is complete and to fully inform those skilled in the art to which this invention pertains that the invention falls within the category of the invention, and that the invention is defined only by the category of the claims.

[0033] In this embodiment of the invention, unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary knowledge in the art field to which this invention pertains. It is not to be interpreted in an idealistic or overly formal sense.

[0034] The shapes, dimensions, proportions, angles, and numbers disclosed in the accompanying drawings to illustrate embodiments of the invention are illustrative and not limiting. In describing the invention, detailed descriptions of known technologies may be omitted if it is determined that a specific description of such known technologies would unnecessarily obscure the essential points of the invention. Where terms such as "comprising," "having," and "implementing" are used in this specification, additional parts may be added unless "only..." is used. When a component is represented in the singular, it includes the plural form unless otherwise explicitly stated.

[0035] When interpreting components, even if there is no explicit description, it should be interpreted as including the error range.

[0036] For example, if the positional relationship between two parts is described as “on top of,” “above,” “below,” “adjacent to,” etc., then unless the word “directly” is used, one or more different parts may be located between the two parts.

[0037] Elements that are layered or have layers "on top of" include all cases where other layers or elements are directly nested on or in the middle of other elements. Throughout the specification, the same reference point refers to the same component.

[0038] The dimensions and thicknesses of each configuration shown in the figures are for illustrative purposes only, and the invention is not necessarily limited to the dimensions and thicknesses of the structures shown.

[0039] Each feature of several embodiments of the present invention may be combined in part or in whole or in combination with each other, and as will be fully understood by those skilled in the art, they may be technically interlocked and driven, and each embodiment may be performed independently of each other or together in a related relationship.

[0040] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0041] Figure 1 This is a concept diagram of a bag including a handle, the structure of which takes into account the convenience of wearing and storing the bag according to the present invention.

[0042] Figure 2 Showing Figure 1 The extended state of the handle.

[0043] Figure 3 Showing the view from above Figure 1 Cross-section of the main floor.

[0044] The present invention is a bag, including a handle structure that takes into account the convenience of wearing and storing the bag, and two outer leather materials 110 can be combined on the side.

[0045] The handle 200 may include a column member 220 extending along the side of the body member 100 to maintain the shape of the bag and a gripping member 210 providing an area for the user to grasp.

[0046] The two outer skin materials 110 of the main body 100 are connected around the column member 220, so that the main body 100 can be vertical.

[0047] In the handle portion 200, one end may be connected to the clamp member 210. The other side may include an extension member 230 interpolated into the column member 220.

[0048] The extension member 230 is movable inside the column extension member 220, so that the length of the handle 200 can be adjusted according to the movement of the extension member 230.

[0049] The main body component 100 can be composed of two outer skin materials 110 joined together from the sides, which can be connected to each other to form independent internal storage spaces. A floor outer skin material 110 can be installed at the bottom of the main body component 100 to enhance its rigidity and ensure stable storage of internal items. The main body component 100 can be made rectangular or trapezoidal, and the outer skin material 110 can be made of various materials, such as leather, synthetic fibers, or plastic-coated fabric.

[0050] A handle 200 can be positioned on top of the main body 100 so that the user can easily grip the bag. The handle portion 200 is a fixed structure, not a typical rope; a post 220 extends along the side of the main body 100, and the user touches the grip 210. The post 220 maintains the shape of the main body 100 while also functioning as a handle. The outer material 110 of the main body 100 can be configured to be assembled when wrapping the post 220. Therefore, the main body 100 can remain upright, which increases the stability of the bag.

[0051] The handle 200 may include an extension 230. The extension 230 may be configured to be inserted inside the post 220 and may be designed so that the user can adjust the length of the handle 200 as needed. One end of the extension 230 is connected to the clamp 210, and the other end may be arranged so that it can move within the post 220.

[0052] The length of the handle 200 can be adjusted by sliding. The extension member 230 can move along a guide rail inside the column member 220 and can be equipped with a locking structure or internal locking mechanism to fix it in a specific position. This allows the user to shorten the length of the handle 200 to carry the bag by hand and extend it to carry it on their shoulder when necessary.

[0053] According to this embodiment, the handle 200 not only provides a gripping function, but also increases the structural rigidity of the bag by extending along the side of the body part 100. Furthermore, by integrating the handle 200 with the body part 100, it can be designed to maintain a constant shape regardless of the internal storage state.

[0054] The length adjustment function of the extension 230 allows for a design that maximizes user convenience without infringing on the bag's storage space. Therefore, the length of the handle 200 can be designed to accommodate various user physical conditions and usage environments, and the post 220 and extension 230 can be combined to improve the handle's durability.

[0055] Next, the column member 220 can be exposed in the storage space of the main body part 100.

[0056] In column member 220, a hook hole 250 may be formed in the part exposed in the storage space of main body part 100.

[0057] The extension 230 is inserted into the top of the column 220 and can be arranged in the form of a through hole 250.

[0058] One end of the extension 230 can be connected to the clamping member 210. At the other end, a blocking member 240 can be formed.

[0059] The size of the retainer 240 can be made to hang on the hanging hole 250.

[0060] The internal feature of the column member 220 is that it provides a plastic member that is tightly adhered to the inner wall of the column member 220 but encloses a portion of the extension member 230.

[0061] The column member 220 can be placed in the storage space of the main body part 100 to be exposed upwards. The column member 220 can be made of plastic, aluminum alloy, carbon fiber or other lightweight metal materials to maintain a certain rigidity and can be fixed in a suitable position inside the main body part 100.

[0062] On the outside of the column member 220, a plurality of hanging holes 250 can be formed along the portion exposed in the storage space of the main body part 100. The hanging holes 250 can restrict the movement of the telescopic member 230 extending in the vertical direction.

[0063] The extension 230 can be inserted from the top of the column 220 and can be placed through the hanging hole 250. A hanging member 240 that interlocks with the hanging hole 250 can be provided at the bottom of the extension 230. The locking member 240 can be fixed to the hanging hole 250 by spring tension or one-click locking.

[0064] Inside the column 220, a plastic rod can be placed, which adheres to the inner wall of the column 220 and the outer wall of the extension rod 230. The plastic component prevents unnecessary friction when the extension 230 is moved and can also serve as a guide so that the extension 230 does not wobble.

[0065] Next, the expansion member 230 can be divided into a rigid region 221 (in which a plastic component is provided) and a flexible region 222 (composed of a soft material).

[0066] The outer skin material 110 can be divided into a first envelope 111 exposed outside the main body 100 and a second shell 112 constituting the storage space of the main body 100.

[0067] A certain space can be formed between the first envelope 111 and the second envelope 112.

[0068] The bag includes a handle that takes into account both ease of wearing and the bag's storage structure, and may include an additional volume control unit to adjust the volume 100 of the storage space of the main body.

[0069] The volume control component may include a spiral dial 310 fixed by an outer skin material 110 at the bottom of the main body 100, a plurality of anchor points 330 provided on one side of the top height of the flexible region 222 in the space between the first housing 111 and the second outer skin 112 on the side of the main body 100, and a lifting screw 320 connecting the anchor points 330 to the screw dial 310.

[0070] The lifting wire 320 can be arranged in the form of passing through the space between the first envelope 111 and the second envelope 112 on the side of the main body 100.

[0071] The upper part of the threaded dial 310 may be provided with a dial handle, which is exposed on the upper part of the bottom surface of the body 100.

[0072] The lifting line 320 can correspond one-to-one with multiple points on the screw dial 310 with multiple anchors 330.

[0073] The characteristic feature is that the lifting wire 320 is wound by the rotation of the screw scale 310, and the bottom surface of the main body 100 is lifted in the flexible region 222.

[0074] The expansion member 230 can be divided into a rigid region 221 that provides a plastic part and a flexible region 222 that is composed of a soft material. The rigid region 221 is the part that must maintain rigidity and can be composed of metal or high-strength plastic material.

[0075] The outer skin material 110 of the main body 100 can be divided into a first outer shell 111 exposed to the outside of the main body 100 and a second outer shell 112 constituting the storage space of the main body 100. An internal space is formed between the first envelope 111 and the second enclosure 112, and this space can be fixed in order to modify the flexible area 222.

[0076] The bottom of the main body 100 may include a volume control unit for adjusting the volume of the storage space, and a volume control unit for performing functions that allow the internal volume of the bag to be expanded or reduced according to the user's needs.

[0077] The volume control section may be equipped with a screw dial 310, which is fixed by the bottom outer skin material 110 of the main body 100. Furthermore, multiple anchors 330 may be provided in the space between the first envelope 111 and the second outer shell 112 located on the side of the main body 100, and the anchors 330 may be configured to adjust the internal height of the main body 100 via a lifting screw 320 connected to the screw dial 310.

[0078] When the lifting wire 320 moves along the side of the body portion 100, the flexible area 222 contracts when the screw dial 310 is rotated, and the internal space of the bag may contract or expand.

[0079] Next, the screw dial 310 is applied in a push-pull manner so that the dial handle of the screw dial 310 can change the rotatable direction according to the height of the three layers.

[0080] The spiral dial 310 can be mounted on a fixed platform at the lowest possible height to prevent malfunctions during storage. The click-stop platform, which employs a click-stop method, stops at certain intervals when the dial is rotated, and a fully open platform that can rotate in a different direction than the click-stop phase, but immediately unfolds through elastic restoring force.

[0081] The spiral dial 310 is characterized by including a ratchet placed inside the dial 310, a ratchet with multi-stage ratchet teeth on the outer periphery of the bottom of the ratchet, a spiral elastomer that maintains the position of the dial by providing elasticity, and a ratchet retaining pin that engages with the ratchet to provide a clicking stop function.

[0082] The screw dial 310 can be applied by pushing and turning, and the screw dial 310 can be designed to be adjustable to three heights.

[0083] The screw dial 310 can be operated in the following three stages.

[0084] Fixed platform: In the lowest position, the screw dial 310 can be configured to be fixed in a pressed state and not rotated. This is to prevent them from being accidentally rotated by items stored in the bag.

[0085] Click-stop procedure: When the screw dial 310 is raised one layer, a click-stop method with a certain angle of suspension is applied, and it can be configured so that the user can adjust the lifting line 320 as needed.

[0086] Fully open stage: When the screw dial 310 is pulled to the maximum height, the lifting screw 320 is released at once, and the bag space can be configured to automatically expand to the maximum size.

[0087] A multi-stage ratchet tooth can be provided inside the screw dial 310, and the ratchet teeth can be placed at regular intervals to perform a click-stop function. In addition, a helical elastomer can be included, which engages with the ratchet teeth to provide elastic force to fix the position of the dial.

[0088] The spiral dial 310 is secured by the bottom outer material 110 of the bag, and a dial handle is provided at the top for user convenience. Inside the screw dial 310, a ratchet with multi-stage ratchet teeth formed on its outer circumferential surface is provided, and a spiral elastic body providing elasticity can be placed at the bottom of the ratchet. It may also include a ratchet retaining pin, which engages with the ratchet to perform a click-stop function. With this structure, the click-stop function can be applied, which stops periodically when the dial is rotated.

[0089] The screw dial 310 operates in three stages, combining the user's pushing and rotating actions. At its lowest height, the dial remains completely stationary, preventing accidental rotation when items are placed inside the bag. When the user pulls the dial once, the helical elastomer relaxes, and the ratchet engages with the ratchet retaining pin, allowing it to rotate in stages. In this stage, the dial can only rotate in one direction, and because the lifting screw 320 winds around the dial according to its rotation, the bottom of the bag can be gradually lifted.

[0090] When the user pulls the dial twice, the helical elastomer relaxes further, the ratchet retaining pin is fully released, and the dial rotates freely. During this stage, the lifting line 320 automatically releases due to its internal elastic restoring force, causing the bottom of the bag to expand. When the dial is released, the helical elastomer can be designed to return to its original position and return to the stationary stage.

[0091] Furthermore, the engagement strength of the ratchet retaining pin and the ratchet can be set by adjusting the spring tension, allowing the user to adjust the intensity of the click-to-stop function according to their needs. The push-to-rotate mechanism restricts the dial's rotation to a certain height, allowing the user to easily adjust the dial to the desired position. This structure allows for stable adjustment of the bag's bottom height and efficient use of storage space as needed.

[0092] [Explanation of Labels in the Attached Image]

[0093] 100: Body parts

[0094] 110: Outer Material

[0095] 111: The First Shell

[0096] 112: Second shell

[0097] 200: Handle

[0098] 210: Pinch Point Member

[0099] 220: Support member

[0100] 221: Stable Area

[0101] 222: Flexible Area

[0102] 230: Extended Membership

[0103] 240: Jam Members

[0104] 250: Hanging hole

[0105] 310: Screw dial

[0106] 320: Lifting wire

[0107] 330: Anchor

Claims

1. A bag with adjustable handle length and internal storage space, characterized in that, The main body is composed of two outer materials, with the sides and bottom also made of the same material, thus forming an internal storage space. A handle is located on one side of the main body for the user to grip. The handle includes a column member extending along the side of the main body to maintain the shape of the bag, and a gripping member that provides a gripping area for the user. The two outer materials of the main body are connected around the column member to ensure that the main body remains upright. The handle also has an extension member, one end of which is connected to the gripping member and the other end is inserted into the column member. The length of the handle can be adjusted according to its movement by movably placing the extension member inside the column member, which is the core feature of this bag structure.

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