Blow-molded full-sheet inflatable air cushion

Abstract

A blow-molded full-piece type inflatable air cushion is combined with a shoe outsole and comprises a half sole air cushion part, a half sole air cushion part and a half sole air cushion part, the rear sole regulation and control part is provided with a rear air chamber, and the top surface of the rear sole regulation and control part is concavely arranged inwards to form a containing groove; the two ends of the lateral guide connection part are connected with the half sole air cushion part and the rear sole regulation and control part respectively, the lateral guide connection part is provided with a lateral air chamber, the half sole air cushion part, the rear sole regulation and control part and the lateral guide connection part form an integrated structure through blow molding, and the front air chamber, the rear air chamber and the lateral air chamber are communicated with one another; the elastic suction assembly is arranged in the containing groove and comprises an elastic bag piece, an air suction pipeline set and an air exhaust pipeline set, one end of the air suction pipeline set and one end of the air exhaust pipeline set are connected to the elastic bag piece, and the other end of the air exhaust pipeline set is connected to the half sole air cushion part and communicated with the front air chamber. When the elastic bag piece is pressed to deform, air in the elastic bag piece is filled into the front air chamber from the exhaust pipeline set and fully fills the front air chamber, the rear air chamber and the side air chambers, and external force borne by all positions of the foot is effectively buffered indeed.

Description

Technical Field

[0001] This invention relates to a blow-molded full-sheet inflatable air cushion, specifically a technology applied in the footwear industry. Its main function is to provide cushioning and shock absorption for the entire sole of the foot. The blow molding process is quick and convenient, and the air cushion can automatically inflate and set the air pressure during walking, thus achieving the requirements of comfortable and healthy walking. Background Technology

[0002] Shoes are the most significant product of modern technological advancements, allowing wearers to walk comfortably and stably in any environment. The addition of air cushioning inside the shoes provides optimal cushioning for any foot-related movements and actions, preventing foot injuries.

[0003] However, some air cushion structures simply provide cushioning, while others can draw air out of the shoe for release, or draw in outside air to keep the feet dry. Different air cushions have different functions. Today, we will discuss the use of air cushions. Please refer to patents No. I735762 "Sports Shoes that Can Increase Marathon Speed" and No. I54835 "Air Cushion Structure with Multiple Air Pressure Modes". In these two cases, it can be seen that the air cushion is directly embedded in the receiving groove of the outsole of the shoe, and the air cushion is filled by the foot's constant stepping to achieve the best elastic cushioning.

[0004] However, the aforementioned air cushioning is clearly only designed for the forefoot area. Therefore, only the forefoot receives adequate cushioning when the entire foot is subjected to external forces. This is somewhat flawed and insufficient for the current emphasis on comprehensive foot protection. Furthermore, please refer to patent number I548359, "Air Cushion Structure with Multiple Air Pressure Modes." The technology in this case also concentrates the air cushioning in the forefoot area, and the air cushion is a closed design. The inflated air can only be stored within the supporting airbag layer and cannot circulate. In addition, the airbags in the supporting airbag layer are designed as individual units. The support of each airbag for the forefoot depends solely on the internal inflation pressure. Once the internal gas is deflated, the support of each airbag gradually diminishes, and the shock absorption function is lost. For the user, it is impossible to predict whether the airbag is still fully inflated, making the foot vulnerable to injury. Summary of the Invention

[0005] To address the shortcomings of existing technologies, which only provide cushioning for the forefoot area where the foot bears more weight, this invention provides a blow-molded, full-sheet inflatable air cushion that offers more comprehensive foot protection, not just for the forefoot area, but effectively cushions all external forces borne by the foot.

[0006] The technical solution adopted by this invention to solve its technical problem is: A blow-molded, full-piece inflatable air cushion includes: a forefoot air cushion portion with a forefoot air chamber inside; a rearfoot adjustment portion with a rearfoot air chamber inside, and a recessed groove formed on the top surface of the rearfoot adjustment portion; a lateral guide portion, with its two ends respectively connected to the forefoot air cushion portion and the rearfoot adjustment portion, and a lateral air chamber formed inside the lateral guide portion; the forefoot air cushion portion, the rearfoot adjustment portion, and the lateral guide portion are blow-molded into an integral structure, and the forefoot air cushion portion, the rearfoot air chamber, and the lateral air chamber are interconnected; and an elastic suction unit. The elastic suction assembly, installed in the receiving slot, includes an elastic bladder, an air intake pipe assembly, and an exhaust pipe assembly. One end of the air intake pipe assembly and the exhaust pipe assembly are connected to the elastic bladder, while the other end of the exhaust pipe assembly is connected to the forefoot air cushion and communicates with the forefoot air chamber. When the elastic bladder is compressed and deformed, the gas inside the elastic bladder can be filled into the forefoot air chamber through the exhaust pipe assembly, and fill the forefoot air chamber, the rear air chamber, and the side air chamber, thereby supporting the forefoot, rearfoot, and lateral arch of the foot.

[0007] The beneficial effect of this invention is that it provides more comprehensive protection for the wearer's feet, not just limited to the forefoot area, but effectively cushioning all external forces borne by the feet. Attached Figure Description

[0008] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0009] Figure 1 This is a three-dimensional schematic diagram of the present invention combined with the shoe outsole and elastic suction assembly.

[0010] Figure 2 for Figure 1 A three-dimensional exploded view.

[0011] Figure 3 for Figure 1 A practical application and a complete three-dimensional schematic diagram of the shoe body.

[0012] Figure 4 For the first Figure 1 The cross-sectional diagram shown is shown.

[0013] Figure 5 for Figure 4A schematic diagram of gas flow after the elastic bladder is compressed.

[0014] Figure 6 for Figure 5 A planar schematic diagram from another perspective.

[0015] Figure 7 for Figure 5 A schematic diagram of gas flow during the rebound of the elastic bladder after being compressed.

[0016] Figure 8 for Figure 7 A planar schematic diagram from another perspective.

[0017] Explanation of the labels in the diagram: Shoe outsole 100 shoe upper 200 Forefoot Air Cushion 1 Anterior air chamber 11 Reinforcement Slot 12 Reinforced rib 121 Step 122 Rear palm control unit 2 Rear air chamber 21 Storage slot 22 First trench section 221 Second groove 222 Long trough section 2221 Side channel section 2222 Adjustment port 23 Side guide joint 3 Side air chamber 31 Elastic suction assembly 4 Elastic capsule 41 Intake pipe assembly 42 One-way intake valve 421 Intake pipe 422 Exhaust pipe assembly 43 Exhaust check valve 431 Multi-way valve 432 Exhaust pipe 433 Extension piece 5 Control 6 Valve part 61 Adjustment unit 62 Air vent 63 Lengths T and E Detailed Implementation

[0018] Please see Figures 1 to 8As shown, the present invention discloses a blow-molded full-piece inflatable air cushion, which is integrated with a shoe outsole 100. It includes: a forefoot air cushion portion 1, with a forefoot air chamber 11 formed inside; a rearfoot adjustment portion 2, with a rearfoot air chamber 21 formed inside, and a recessed receiving groove 22 formed inwardly on the top surface of the rearfoot adjustment portion 2; and a lateral guide portion 3, with its two ends respectively connected to the forefoot air cushion portion 1 and the rearfoot adjustment portion 2, and a lateral air chamber 31 formed inside the lateral guide portion 3. The forefoot air cushion portion 1, the rearfoot adjustment portion 2, and the lateral guide portion 3 are formed into an integral structure by blow molding, and the forefoot air chamber 11, the rearfoot air chamber 21, and the lateral air chamber 31 are interconnected; and elasticity. The suction assembly 4 is installed in the receiving groove 22. The elastic suction assembly 4 includes an elastic bladder 41, an air intake pipe assembly 42, and an exhaust pipe assembly 43. The air intake pipe assembly 42 and the exhaust pipe assembly 43 are each connected to the elastic bladder 41 at one end, and the other end of the exhaust pipe assembly 43 is connected to the forefoot air cushion portion 1 and communicates with the front air chamber 11. When the elastic bladder 41 is deformed by pressure, the gas inside the elastic bladder 41 can be filled into the front air chamber 11 through the exhaust pipe assembly 43, and fill the front air chamber 11, the rear air chamber 21, and the side air chamber 31, thereby supporting the forefoot, heel, and lateral arch of the foot.

[0019] Based on the above description of the present invention, the forefoot air cushion 1, the rearfoot adjustment part 2, and the lateral guide part 3 are integrally molded using a blow molding method. This not only provides the user with more comprehensive protection for their feet during pedaling movements, but also includes the forefoot, heel, and lateral arch (also known as the arch of the foot, located between the forefoot and heel). This allows the foot to absorb external forces through these corresponding parts. Please see... Figure 6 , Figure 8 As shown in the figure, the arrows indicate the direction of gas filling flow. Compared to existing technologies that only cushion the thicker forefoot while ignoring the issue of other parts also being subjected to external forces and potentially injured, this invention effectively protects the foot from external forces. Furthermore, this invention uses blow molding to manufacture a complete insole (forefoot air cushion 1, heel adjustment part 2, and lateral guide part 3), which saves time in the manufacturing process and allows for direct integration with the outsole 100. The finished product obtained by this manufacturing method has higher consistency and a higher yield rate, compared to existing technologies that require additional grooves to be cut into the outsole or the manufacture of two different air cushion components.

[0020] In addition to the main technical features described above, the detailed technical features and structural parts of the present invention will be further described below. Please see below. Figure 1 , Figure 4As shown, in addition to providing a cushioning effect through inflation, several corresponding reinforcing grooves 12 are further recessed into the front air chamber 11 on the top and bottom surfaces of the forefoot air cushion 1. Reinforcing ribs 121 are formed between the corresponding reinforcing grooves 12. Steps 122 are formed around the inner wall of each reinforcing groove 12 to distinguish the space within each reinforcing groove 12. The space near each reinforcing rib 121 is smaller than the space near the opening of each reinforcing groove 12. Each reinforcing groove 12 is mainly used to assist in supporting the weight of the foot. The steps 122 of each reinforcing groove 12 form the first support point, and then each reinforcing rib 121 serves as the second support point to distribute the support. This disperses the force of the foot pressing on the forefoot air cushion 1, allowing the forefoot air cushion 1 to better protect the forefoot.

[0021] Furthermore, to ensure the invention can be reliably applied to the entire shoe body, an extension piece 5 is further extended upwards and around the top edge of the forefoot air cushion 1, the top edge of the rearfoot adjustment part 2, and the top edge of one side of the lateral guide part 3. This extension piece 5 is assembled with the shoe upper 200. (See attached image.) Figure 3 As shown, the maker only needs to cover the shoe upper 200 with the extension piece 5 and wrap it around the position of the extension piece 5, and then use subsequent processing methods (such as: gluing, hot pressing, melting, sewing, etc., the processing methods are not limited here) to combine them, thereby completing a complete shoe body.

[0022] Continuing with the description of the storage slot 22 located in the rear palm control section 2, the design of the storage slot 22 is mainly to provide a place for the elastic suction assembly 4 and to facilitate future replacement. Therefore, the storage slot 22 is further divided into a first slot 221 and a second slot 222. The first slot 221 and the second slot 222 are connected. The first slot 221 is recessed according to the shape of the elastic bladder 41. The elastic bladder 41 is installed in the first slot 221. The intake pipe assembly 42 and the exhaust pipe assembly 43 are installed in the second slot 222. The second slot 222 is further divided into a long slot section 2221 and a side slot section 2222. The intake pipe assembly 42 is located in the side slot section 2222, and the exhaust pipe assembly 43 is located in the long slot section 2221 and connected to the control switch 6. The control switch 6 is located in the side slot section 2222 and is partially connected to the control switch 6. The adjustment port 23 is exposed on one side of the side groove section 2222. Corresponding to the design of the long groove section 2221 and the side groove section 2222, the adjustment control 6 further includes a cylindrical valve section 61, an adjustment section 62, and a venting section 63. One end of the valve section 61 is connected to the exhaust pipe assembly 43, and the other end of the valve section 61 is movably assembled with the adjustment section 62. The adjustment section 62 is partially exposed at the adjustment port 23, mainly to facilitate user operation. The venting section 63 is located on one side of the valve section 61. The adjustment section 62 rotates relative to the valve section 61 to limit the air pressure in the front air chamber 11, the rear air chamber 21, and the side air chamber 31. When the air pressure inside the front air chamber 11, the rear air chamber 21, and the side air chamber 31 is saturated and can no longer be filled, the gas will be discharged from the venting section 63. (See [link to relevant documentation]). Figure 1 , Figure 2 As shown.

[0023] Finally, the intake pipe assembly 42 and the exhaust pipe assembly 43 will be described in detail. Please see [link to documentation]. Figure 2 , Figure 3 , Figure 6 , Figure 8As shown, the intake pipe assembly 42 further includes a one-way intake valve 421 and an intake pipe 422. One end of the one-way intake valve 421 is connected to the elastic bladder 41, and the other end is connected to the intake pipe 422. The intake pipe 422 draws in air from the shoe to fill it. The exhaust pipe assembly 43 further includes two exhaust one-way valves 431, a multi-way valve 432, and several exhaust pipes 433. The above arrangement is one one-way intake valve 421, one exhaust pipe 433, a multi-way valve 432, and several exhaust pipes 433. An exhaust pipe 433 and an exhaust check valve 431 are connected to the front air chamber 11. The multi-way valve 432 is primarily a three-way valve, with its two ends connected to the exhaust pipe 433, and its third end connected to the valve section 61 of the control panel 6 via the exhaust pipe 433. This allows for smooth air pressure control via the control panel 6. Therefore, in the gas filling process of this invention, the control panel 6 is used first for adjustment to obtain the most suitable pressure for the wearer's feet, followed by adjustments to the forefoot and heel. As the heel alternates between pressing down on the elastic bladder 41, the air inside the bladder 41 is input into the front air chamber 11 through the exhaust pipe assembly 43. Then, after the pressure from the heel on the bladder 41 is released, the bladder 41 elastically returns to its original position, and the intake pipe assembly 42 draws in air from inside the shoe to replenish it. With the next press of the heel, the air from the bladder 41 is again delivered to the front air chamber 11, and the air in the front air chamber 11 simultaneously fills the side air chamber 31 and the rear air chamber 2. 1. Once the air in the front air chamber 11, rear air chamber 21, and side air chamber 31 is saturated, the inflation process of this invention is complete. However, if the air in the front air chamber 11, side air chamber 31, and rear air chamber 21 cannot be filled during inflation, and the wearer continues to step on the air, the air cannot enter the front air chamber 11. Therefore, the air will be guided by the multi-way valve 432 to the valve section of the regulating control 6, and the venting part 63 of the valve section 61 will be used to vent the air, achieving pressure saturation and balance in the front air chamber 11, side air chamber 31, and rear air chamber 21. Please see... Figures 5 to 8 As shown.

[0024] Finally, it is worth mentioning that in order to ensure that the adjustment control 6 can be installed firmly without affecting the force cushioning of the lateral arch of the foot, the longest width of the lateral guide portion 3 (defined as T) is less than the distance from one side wall of the long groove section 2221 to the adjustment port 23 (defined as E). In this way, with the above-mentioned settings, not only can the adjustment control 6 be placed as scheduled, but the lateral arch of the foot can also be effectively cushioned and protected.

[0025] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present invention shall still fall within the scope of the technical solution of the present invention.

Claims

1. A blow-molded, full-piece inflatable air cushion, integrated with a shoe outsole, characterized in that, include: The forefoot air cushion section has an internal air chamber; The rear foot control section has a rear air chamber inside, and a receiving groove is formed by recessing the top surface of the rear foot control section. The side guide portion is connected to the forefoot air cushion portion and the rearfoot control portion at its two ends respectively, and a side air chamber is formed inside the side guide portion. The forefoot air cushion portion, the rearfoot control portion and the side guide portion are formed into an integral structure by blow molding, and the forefoot air chamber, the rear air chamber and the side air chamber are interconnected. And an elastic suction assembly, which is installed in the storage slot, the elastic suction assembly includes an elastic bladder, an air intake pipe assembly and an exhaust pipe assembly, the air intake pipe assembly and the exhaust pipe assembly are each connected at one end to the elastic bladder, and the other end of the exhaust pipe assembly is connected to the forefoot air cushion and communicates with the front air chamber. When the elastic bladder is compressed and deformed, the gas inside the elastic bladder can be filled into the front air chamber through the exhaust pipe assembly, and fill the front air chamber, the rear air chamber, and the side air chamber, thereby supporting the forefoot, heel, and lateral arch of the foot.

2. The blow-molded full-sheet inflatable air cushion according to claim 1, characterized in that, The top and bottom surfaces of the forefoot air cushion are recessed into the forefoot air chamber to form several corresponding reinforcement grooves, and reinforcement ribs are formed between each corresponding reinforcement groove. The inner wall of each reinforcement groove is surrounded to form a step, thereby distinguishing the space inside each reinforcement groove. The space near each reinforcement rib is smaller than the space near the groove opening.

3. The blow-molded full-sheet inflatable air cushion according to claim 1, characterized in that, The forefoot air cushion, the top edge of the rearfoot adjustment section, and the top edge of one side of the lateral guide section are further surrounded by an extension piece, which is assembled with the upper.

4. The blow-molded full-sheet inflatable air cushion according to claim 1, characterized in that, The storage slot is further divided into a first slot and a second slot, which are connected to each other. The elastic bladder is installed in the first slot, and the intake pipe assembly and the exhaust pipe assembly are installed in the second slot.

5. The blow-molded full-sheet inflatable air cushion according to claim 4, characterized in that, The second groove is further divided into a long groove section and a side groove section. The intake pipe assembly is located in the side groove section, the exhaust pipe assembly is located in the long groove section and connected to the adjustment control. The adjustment control is located in the side groove section and is partially exposed in the adjustment port opened on one side of the side groove section.

6. The blow-molded full-sheet inflatable air cushion according to claim 5, characterized in that, The control unit further includes a valve, an adjustment section, and a venting section. One end of the valve is connected to the exhaust pipe assembly, and the other end of the valve is movably assembled with the adjustment section. The venting section is located on one side of the valve. The adjustment section rotates relative to the valve to limit the air pressure in the front air chamber, the rear air chamber, and the side air chamber. When the air pressure inside the front air chamber, the rear air chamber, and the side air chamber is saturated and can no longer be filled, the gas will be discharged from the venting section.

7. The blow-molded full-sheet inflatable air cushion according to claim 4, characterized in that, The air intake assembly further includes a one-way air intake valve and an air inlet pipe. One end of the one-way air intake valve is connected to the elastic bladder, and the other end of the one-way air intake valve is connected to the air inlet pipe, which draws in air from inside the shoe to fill it.

8. The blow-molded full-sheet inflatable air cushion according to claim 4, characterized in that, The exhaust pipe assembly further includes two exhaust check valves, a multi-way valve, and several exhaust pipes. The above arrangement is as follows: one one-way intake valve, one exhaust pipe, a multi-way valve, another exhaust pipe, and another exhaust check valve. The last exhaust check valve is connected to the front air chamber.

9. The blow-molded full-sheet inflatable air cushion according to claim 5, characterized in that, The longest width of the lateral guide section is less than the distance from one side wall of the long groove section to the adjustment port.

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