A front chest balance-adjusting tightening system and a chest-mounted backpack comprising the same

Abstract

This invention discloses a chest adjustment and balance tightening system and a vest-style backpack including this system, comprising: a rotating adjustment buckle, a tension rope, and several cascading buckles; the first and last ends of the tension rope are wound in the same direction within the rotating adjustment buckle, so that when the drum rotates, the upper and lower halves of the tension rope are simultaneously wound into the rotating adjustment buckle to tighten the two side openings of the vest. The tension on the left and right side openings of this application is symmetrical, allowing the vest to fit evenly and balanced against the human chest, significantly reducing backpack swaying during running and improving carrying stability. Simultaneously, the cascading buckles provide dual degrees of adjustment freedom, enabling the backpack to adapt to a wider range of users and meet personalized body shape adjustment needs.

Description

Technical Field

[0001] This invention relates to the field of sports equipment technology, and in particular to a chest adjustment and balance tightening system and a vest-style backpack including the system. Background Technology

[0002] Vest-style hiking backpacks, with their clothing-like fit that distributes weight evenly across the torso, have become the preferred equipment for runners.

[0003] Currently, most vest-style hiking backpacks use two independent chest straps or elastic cords for adjustment at the chest. In practice, this traditional adjustment method makes it difficult to ensure balanced force on both sides due to the use of two independent straps, resulting in the backpack not fully conforming to the runner's chest. While elastic cords offer some elasticity, their stretching can cause the backpack to shift vertically under heavy loads, leading to poor fit and uneven tightening.

[0004] To address the aforementioned technical problems, those skilled in the art have proposed an improvement, disclosing a front chest adjustment device for a vest-style backpack and the backpack itself, application number 202122010262.4. This technical solution optimizes the wearing stability of the backpack to a certain extent through a specific adjustment device. However, the structural design of its front chest adjustment device is relatively fixed, making it impossible to perform further refined tightness adjustments based on the differences in body shape among different runners and their individual needs for comfort and tightness in different areas. This limits the applicability of the product to user groups with different body types and fails to meet personalized body shape adjustment needs. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the present invention provides a chest adjustment and balance tightening system and a vest-style backpack including the system.

[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or to describe the scope of protection of these embodiments. Its sole purpose is to present some concepts in a simple form as a prelude to the detailed description that follows.

[0007] The present invention adopts the following technical solution: In a first aspect, a front chest adjustment and balance tightening system is provided, including: a rotating adjustment buckle, wherein a roller is disposed inside the rotating adjustment buckle; and further including: a tension rope arranged crosswise at the opening of the vest and a number of cascaded buckles; The tension rope is slidably threaded through the middle of one side opening of the vest. The first and last ends of the tension rope are wound in the same direction around the drum inside the rotating adjustment buckle located at the other side opening of the vest, so that when the drum rotates, the upper and lower halves of the tension rope are wound into the rotating adjustment buckle simultaneously to tighten the two openings of the vest. The cascaded buckle includes: a buckle base, an adjusting latch, and a U-shaped hook for carrying the tension rope. The buckle base has several horizontally arranged slots. The adjusting latch is provided with a locking post that matches the locking post, so that when the locking post is inserted into the locking post at each position, the adjusting latch is positioned at the corresponding position of the buckle base.

[0008] Furthermore, the cascading buckles are evenly spaced from top to bottom at one side of the vest's opening, and the middle part of the tension rope slides through the U-shaped hook of the cascading buckle located in the middle position; the rotating adjustment buckle is located at the other side of the vest's opening at the same height as the cascading buckle located in the middle position.

[0009] Furthermore, the upper half of the tension rope is arranged crosswise above the rotating adjustment buckle, and the lower half of the tension rope is arranged crosswise below the rotating adjustment buckle. The crosswise arrangement means that the tension rope starts from the middle of the rope body, first extends towards the opposite side opening and passes through the opposite side opening, then extends towards the current side opening, passes through the current side opening, and then extends towards the opposite side opening and connects to the rotating adjustment buckle.

[0010] Furthermore, the aforementioned chest adjustment and tightening system also includes: a U-shaped guide rail and hooks; the U-shaped guide rail is evenly spaced from top to bottom at the vest opening on the side where the rotating adjustment hook is located, and the hooks are evenly spaced from top to bottom at the vest opening on the side where the cascading buckles are located, with the cascading buckles mounted on the hooks.

[0011] Furthermore, the aforementioned chest adjustment and balance tightening system also includes a cross-shaped structural component, which is disposed at the intersection of the tension ropes.

[0012] Furthermore, a guide groove is formed in the buckle base; the U-shaped hook is set at the outer end of the adjusting latch, the inner end of the adjusting latch is embedded in the guide groove of the buckle base, a plurality of horizontally arranged locking positions are formed in the guide groove, an operating component is set on the adjusting latch, and a locking post is set on the operating component.

[0013] Furthermore, a hollow groove is formed on the wall of the guide groove, and a limiting groove is formed on the wall of the hollow groove. The limiting groove bends outward at intervals to form the locking position.

[0014] Furthermore, the operating component includes: an actuating drive rod, on which the locking pin is disposed; a recessed groove is formed on the adjusting latch, and a return spring is disposed in the recessed groove, wherein the actuating drive rod is connected to the return spring.

[0015] Secondly, a vest-style backpack is provided, the vest-style backpack including the aforementioned front chest adjustment and balance tightening system and a vest, the front chest adjustment and balance tightening system being disposed on the vest.

[0016] The beneficial effects of this invention are as follows: By using a design where the tension ropes are arranged in a crisscross pattern and wound in the same direction, this application ensures that the tension of the ropes is synchronized, and the tension on the left and right sides of the vest is symmetrical. This allows the vest to fit evenly and evenly against the human chest, significantly reducing backpack swaying during running and improving carrying stability. At the same time, the cascading buckles provide multiple adjustment levels. This dual degree of adjustment freedom allows the backpack to adapt to a wider range of users. Users can adjust the horizontal position of the adjusting latch in the cascading buckles at different heights according to their own needs, meeting personalized body shape adjustment requirements. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a chest adjustment and balance tightening system according to the present invention; Figure 2 This is a schematic diagram of the movement of the tension rope during tightening of the chest adjustment and balance tightening system of the present invention; Figure 3 This is a schematic diagram of the movement of the tension rope during release of the front chest adjustment and balance tightening system of the present invention; Figure 4 This is a schematic diagram of the cascaded latch structure of the present invention when adjusting the extension of the locking tongue; Figure 5 This is a schematic diagram of the cascaded buckle structure when the locking tongue is inserted into the buckle base of the present invention; Figure 6 This is a schematic diagram of the structure of the present invention when the card post is embedded in the card slot; Figure 7 This is a schematic diagram of the structure of the present invention when the locking pin is located in the straight section of the limiting groove. Detailed Implementation

[0019] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0020] like Figure 1-7 As shown in some illustrative embodiments, a front chest adjustment and balance tightening system is provided, including: a rotary adjustment buckle 100, a tension rope 200, a cascading buckle 300, a U-shaped guide rail 400, a hook 500, and a cross-shaped structural member 600.

[0021] A drum is installed inside the rotary adjustment buckle 100. The drum can rotate within the rotary adjustment buckle 100 under external force, thereby gradually winding the tension rope 200 around its own body. Rotating the drum in the opposite direction will gradually release the tension rope 200. The specific structure of the rotary adjustment buckle 100 can adopt any existing structure that can achieve the above function, and will not be described in detail here. For example, the position of the drum can be locked by a built-in ratchet or gear structure to prevent accidental loosening after adjustment and ensure stability.

[0022] The 200mm tension ropes are arranged in a crisscross pattern at the opening of the vest; finely braided ropes can be used.

[0023] The middle part 210 of the tension rope 200 is slidably threaded through one side of the opening of the vest 700. The first and last ends of the tension rope 200 are wound in the same direction on the drum inside the rotating adjustment buckle 100 located on the other side of the opening of the vest 700, so that when the drum rotates, the upper half 220 and the lower half 230 of the tension rope 200 are wound into the rotating adjustment buckle 100 simultaneously to tighten the openings on both sides of the vest 700.

[0024] Co-directional winding refers to the process where the beginning and end of the tension rope 200 are fixed to the drum and then wound together clockwise or counterclockwise. Therefore, when the drum rotates clockwise, the upper half of the rope 220 and the lower half of the rope 230 are wound onto the drum synchronously and gradually, shortening the overall length of the tension rope 200 and causing it to gradually tighten. Conversely, when the drum rotates counterclockwise, the upper half of the rope 220 and the lower half of the rope 230 are released synchronously, causing the tension rope 200 to gradually loosen.

[0025] The tension cords 200 are crisscrossed and wound in the same direction, ensuring that the upper and lower sections tighten or release synchronously as the drum rotates. This guarantees balanced force on both sides of the vest's openings, avoiding the drawback of one side being loose while the other is loose, which is a common problem with traditional two independent webbing adjustments. It achieves dynamic, balanced tightening. Furthermore, the cascading buckles 300, slidably threaded through the middle of the cords 210, create two independent adjustment zones (upper and lower). The system can simultaneously and evenly apply force to the upper and lower chest, allowing the backpack to better conform to the body's curves, reducing gaps and significantly minimizing swaying. Most importantly, the independent adjustment of the upper and lower zones can be achieved simply by rotating the adjustment buckle 100, offering the advantage of ease of operation.

[0026] Cascading buckles 300 are evenly spaced from top to bottom at one side of the vest 700's opening. The middle section 210 of the tension cord 200 slides through the U-shaped hook 330 of the cascading buckle 300 located in the middle position. A rotating adjustment buckle 100 is located at the other side of the vest 700's opening at the same height as the cascading buckle located in the middle position.

[0027] The upper half of the tension rope 200, 220, is arranged crosswise above the rotating adjustment buckle 100, while the lower half of the tension rope 200 is arranged crosswise below the rotating adjustment buckle 100. The crosswise arrangement means that the tension rope 200 starts from the middle 210 of its body, extends first towards the opposite side of the opening and passes through the opposite opening, then extends towards its own opening, passes through the opening, and then extends towards the opposite opening to connect to the rotating adjustment buckle 100.

[0028] U-shaped guide rails 400 are evenly spaced from top to bottom at the vest opening on the side where the rotating adjustment buckle 100 is located. This provides a precise guide path for the tension cord 200, ensuring that the cord does not twist or rub against the clothing during tightening, while also enhancing the overall structural neatness. Hooks 500 are evenly spaced from top to bottom at the vest opening on the side where the cascading snaps 300 are located. The cascading snaps 300 are mounted on the hooks 500, enabling modular assembly. This allows users to easily add or remove snaps or replace them with different sizes as needed. When arranged in a cross pattern, the tension cord 200 crosses between the U-shaped guide rails 400 on both sides of the opening and the U-shaped hooks 330 of the cascading snaps 300, ensuring stability and preventing it from easily falling off.

[0029] A cross-shaped structural component 600 is positioned at the intersection of the tension ropes 200. The cross-shaped structural component 600 is a four-way conduit structure; the tension ropes 200 pass through its internal channels when crossing to the left and right. The cross-shaped structural component 600 fixes the intersection position of the tension ropes, preventing displacement of the intersection point and ensuring a stable intersection angle, thereby ensuring balanced force on both sides. Furthermore, it effectively prevents wear and tangling of the tension ropes at the intersection point, extending their service life.

[0030] Existing technologies suffer from uneven force distribution, causing backpacks to tilt and sway. This system addresses this by using a 200° tension rope that is crisscrossed and wound in the same direction, ensuring that the tension in the upper and lower sections of the rope is completely synchronized and equal. When the adjustment buckle is tightened by 100°, the tension on both sides of the vest is symmetrical, allowing the vest to fit evenly and balanced against the chest, significantly reducing backpack swaying during running and improving carrying stability. Moreover, during trail running, runners can quickly and accurately adjust the chest strap tightness according to changes in terrain without interrupting their running rhythm.

[0031] The cascaded snap fastener 300 includes: a snap fastener base 310, an adjusting latch 320, and a U-shaped hook 330 for carrying the tension rope 200.

[0032] The latch base 310 has several horizontally arranged slots 311. The adjusting latch 320 is provided with a locking post 321 that matches the slot 311. When the locking post 321 is inserted into each slot 311, the adjusting latch 320 is positioned at the corresponding position of the latch base 310. That is, when the locking post 321 is inserted into each slot 311, the adjusting latch 320 is positioned at a position of the latch base 310. The different positions of the slots 311 correspond to different relative positions of the adjusting latch 320 and the latch base 310, thereby realizing the secondary tightness adjustment of the system at different heights.

[0033] This system provides multi-level adjustment through cascading buckles 300. Specifically, this is achieved by adjusting the locking tongue 320 to different positions on the buckle base 310. With the adjustment buckle 100 tightening / releasing the tension cord 200, the cascading buckle 300 design allows for fine-tuning of the horizontal tension at different height positions. This dual degree of adjustment allows the backpack to accommodate a wider range of users, who can adjust the horizontal position of the locking tongue 320 in the cascading buckles 300 at different heights to meet individual body shape adjustments.

[0034] A guide groove 312 is formed inside the buckle base 310. A U-shaped hook 330 is set at the outer end of the adjusting latch 320. The inner end of the adjusting latch 320 is embedded in the guide groove 312 of the buckle base and can move left and right along the guide groove 312. Several horizontally arranged locking positions 311 are formed inside the guide groove 312. Specifically, hollow grooves 313 are formed on the upper and lower groove walls of the guide groove 312. Limiting grooves 314 are formed on the groove walls of the hollow grooves 313. The locking pin 321 can move within the limiting grooves 314. The limiting grooves 314 bend outward at intervals to form several horizontally arranged locking positions 311. That is, when the locking pin 321 moves into the bent position of the limiting groove 314, it is embedded in the locking position 311.

[0035] An operating component is provided on the adjusting latch 320, and a locking pin 321 is provided on the operating component. The operating component includes: an actuating drive rod 322, on which the locking pin 321 is provided; a recessed groove 323 is formed on the adjusting latch 320, and a return spring 324 is provided in the recessed groove 323. The actuating drive rod 322 is connected to the return spring 324. In the natural state, the elastic force of the return spring 324 pushes the actuating drive rod 322 up, causing the locking pin 321 to engage with the locking position 311 at the bend of the limiting groove 314, thereby locking the adjusting latch 320 in the current position.

[0036] When the user needs to adjust the tightness of the chest strap in the height direction, press the actuator 322. The actuator 322 moves downward into the recess 323 against the elastic force of the return spring 324, causing the locking pin 321 to disengage from the bent locking position 311 and enter the straight groove section of the limiting groove 314. While holding the press, push the actuator 322 left and right, causing the entire adjusting latch 320 to move horizontally along the guide groove 312. At this time, the locking pin 321 moves within the straight groove section until it reaches the position of the next locking position 311. When it moves to the target position, release the actuator 322. Under the restoring force of the return spring 324, the actuator 322 moves upward, pushing the locking pin 321 into the new locking position 311, completing the locking.

[0037] Achieve dual degrees of freedom in adjustment: The first level of macro-adjustment allows for tightening or loosening of the tension rope 200 by rotating the adjustment buckle 100, enabling overall tightening and loosening of the entire chest area, suitable for quickly adjusting the overall fit during running; the second level of micro-adjustment allows for localized fine-tuning of tightness at specific height positions by horizontally moving the adjustment latch 320 of the cascaded buckle 300 on the buckle base 310.

[0038] The combination of overall coarse adjustment and local fine adjustment solves the shortcomings of existing technologies that cannot further adjust the tightness according to body shape and individual needs. For example, for users with well-developed chest muscles or those experiencing specific pressure in certain areas, the horizontal position of a particular buckle can be adjusted individually while maintaining overall tightness, releasing local pressure and achieving a truly personalized fit. Adjusting the horizontal movement of the locking tongue 320 actually changes the force geometry of the tension cable 200 at that point. Users can adjust the relative positions of the buckles in all directions according to their body curves, thereby optimizing the direction of force. This method is simple to use and suitable for immediate adjustments during running. The operation logic is clear and can be completed with one hand, conforming to the operating habits during trail running.

[0039] The present invention also provides a vest-style backpack, which includes a front chest adjustment and balance tightening system and a vest 700, wherein the front chest adjustment and balance tightening system is disposed on the vest 700.

[0040] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A chest adjustment and balance tightening system, comprising: A rotating adjustment buckle, wherein a roller is provided inside the rotating adjustment buckle; characterized in that it further includes: a tension rope arranged crosswise at the opening of the vest and a number of cascaded buckles; The tension rope is slidably threaded through the middle of one side opening of the vest. The first and last ends of the tension rope are wound in the same direction around the drum inside the rotating adjustment buckle located at the other side opening of the vest, so that when the drum rotates, the upper and lower halves of the tension rope are wound into the rotating adjustment buckle simultaneously to tighten the two openings of the vest. The cascaded buckle includes: a buckle base, an adjusting latch, and a U-shaped hook for carrying the tension rope. The buckle base has several horizontally arranged slots. The adjusting latch is provided with a locking post that matches the locking post, so that when the locking post is inserted into the locking post at each position, the adjusting latch is positioned at the corresponding position of the buckle base.

2. The chest adjustment and tightening system according to claim 1, characterized in that, The cascading buckles are evenly spaced from top to bottom at one side of the vest's opening. The middle of the tension cord slides through the U-shaped hook of the cascading buckle located in the middle position. The rotating adjustment buckle is located at the other side of the vest's opening at the same height as the cascading buckle located in the middle position.

3. The chest adjustment and tightening system according to claim 2, characterized in that, The upper half of the tension rope is arranged crosswise above the rotating adjustment buckle, and the lower half of the tension rope is arranged crosswise below the rotating adjustment buckle. The crosswise arrangement means that the tension rope starts from the middle of the rope body, first extends towards the opposite side of the opening and passes through the opposite side of the opening, then extends towards the opening of this side, passes through the opening of this side, and then extends towards the opposite side of the opening and connects to the rotating adjustment buckle.

4. The chest adjustment and tightening system according to claim 3, characterized in that, Also includes: U-shaped guide rails and hooks; the U-shaped guide rails are evenly spaced from top to bottom at the vest opening on the side where the rotating adjustment buckle is located, and the hooks are evenly spaced from top to bottom at the vest opening on the side where the cascading buckles are located, and the cascading buckles are located on the hooks.

5. The chest adjustment and tightening system according to claim 4, characterized in that, Also includes: A cross-shaped structural component is provided at the intersection of the tension ropes.

6. The chest adjustment and tightening system according to claim 5, characterized in that, A guide groove is provided in the buckle base; the U-shaped hook is provided at the outer end of the adjusting latch, the inner end of the adjusting latch is embedded in the guide groove of the buckle base, a plurality of horizontally arranged locking positions are provided in the guide groove, an operating component is provided on the adjusting latch, and a locking post is provided on the operating component.

7. The chest adjustment and balance tightening system according to claim 6, characterized in that, The guide groove has a hollowed-out groove on its wall, and a limiting groove is formed on the wall of the hollowed-out groove. The limiting groove bends outward at intervals to form the locking position.

8. The chest adjustment and tightening system according to claim 7, characterized in that, The operating component includes: an actuating drive rod, on which the locking pin is disposed; a recessed groove is formed on the adjusting latch, and a return spring is disposed in the recessed groove, wherein the actuating drive rod is connected to the return spring.

9. A vest-style backpack, characterized in that, The vest-style backpack includes the front chest adjustment and balance tightening system as described in claim 8 and a vest, wherein the front chest adjustment and balance tightening system is disposed on the vest.

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