BRMU8803472Y1 - JUMPING WITH DAMPING MECHANISM - Google Patents

Abstract

bounce with shock absorber mechanism. The invention relates to a heel for women's shoes which is provided with an internal damping mechanism. the mechanism comprises a hollow heel (1) with an upper chamber (11) and a base (12) provided with a vertical hole (13). In the upper chamber (11) of the heel an elastic body (2) is embedded. a plunger (3) formed by a flat head (31) and a vertical tube (32) is positioned under the elastic body (2) so that its head (31) rests on the heel base (12) and its tube (32) fits within the hole (13). At the lower end of the piston tube (32) is mounted a stud (41) of a heel (4). This assembly results in a gap (f) between the top of the heel (4) and the bottom surface of the heel (1). during ambulation the impact of the heel (4) against the floor is transferred by the pin (41) to the piston tube (32) (3) whose head (31) compresses the elastic body (2) embedded within the chamber (11 ) of the jump (1). The resilient characteristics of the elastic body material (2) cushion the shock of the heel (4) against the ground. A constructive option of the hollow heel (1) comprises a lower chamber (14) below the base (12), partially penetrating an upper portion (42) of the heel (4), better guiding the vertical damping movement. the heel (1) may optionally further have a cover (5) that fits into the upper chamber (11), to better distribute the pressure exerted by the heel against the footwear mounting insole.

Description

“JUMP WITH MUCHING MECHANISM”

INTRODUCTION [001] The present utility model refers to a new constructive arrangement introduced in heels for women's shoes that is equipped with an internal damping mechanism.

STATE OF THE TECHNIQUE [002] It is known that high heels for women's shoes are covered with a heel below. Heels are subjected to high loads, not only static but dynamic, mainly of compression and impact, resulting from the act of walking. Some important characteristics that must be met by the heels material are:

- abrasion resistance, to avoid premature heel wear;

- hardness to ensure good anchoring of the heel fixation pin on the heel;

- adherence, to prevent slippage by the user and

- ductility, to absorb, at least partially, the impact of the jump against the ground.

[003] These fundamental properties of heels require that footwearers persistently pursue new blends of polymeric, elastomeric and / or plastomeric materials. A soft material, which is capable of absorbing a good part of the impact, tends to show premature wear, excessive deformation and risk of pullout. Conversely, a material with great durability is very hard and uncomfortable for the user.

[004] US patent 3,043,024 anticipates a cushioning mechanism for shoes that consists of a heel with an open top surface that features two staggered chambers, a long rod that extends the entire height of the heel and that has a lowered top point, a damping washer positioned between the

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2/5 lower end of the heel and heel, a cushioning piece positioned inside the lower chamber, a thrust washer that rests on the bottom of the lower chamber, a metal pressure washer that is fixed on the end of the stem and that rests on the washer with a stop, a concave disk with peripheral teeth that are fixed to the base wall of the upper chamber and a heel fitted to the lower end of the long stem.

[005] Therefore, the above patent has the following drawbacks:

- complex construction arrangement;

- large number of components;

- high manufacturing cost, due to the greater number of components;

- assembly difficulty due to the greater number of components;

- higher maintenance cost due to the number of moving parts.

[006] The patent KR 2008-0056695 anticipates a damping mechanism for shoes that consists of a heel with thin walls that results from 3 stepped internal chambers, a lower pin with head and heel, a damping part restricted to the intermediate chamber and a plug upper with external thread that is threaded on the internal thread of the upper chamber.

[007] Thus, the above patent has the following drawbacks:

- complex construction arrangement;

- jump with stepped chambers;

- use of a threaded plug to close the heel cavity;

- need for an upper chamber with internal thread;

- complexity of the manufacturing and assembly process by using machining to manufacture the threads of the upper chamber and the plug.

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3/5

SOLUTION OF THE UTILITY MODEL [008] Therefore, the objective of the present utility model is a new constructive arrangement introduced in heels for women's footwear that is capable of effectively overcoming the aforementioned limitations of the state of the art. This is achieved through a heel that is equipped with an internal damping mechanism, the heel being hollow and with a pierced base, inside which an elastic body is positioned. A plunger, formed by a flat head and a lower vertical tube, is positioned under the elastic body so that its head rests on the base of the heel and its tube fits inside a hole in the base of the heel. At the bottom end of the plunger tube, a heel pin is mounted, so that the heel is slightly away from the bottom surface of the heel, creating a gap.

[009] During ambulation, the impact of the heel against the floor is transferred by the pin to the piston tube, whose head compresses the elastic body. Due to the characteristics of the elastic body material, shock absorption occurs, generating a damping effect, which gives the user a feeling of comfort.

[010] Optionally, the hollow heel may have a smaller lower chamber, below the base, where it partially penetrates an upper portion of the heel, guiding the vertical damping movement.

[011] Optionally, the heel may have a cover that fits into the mouth of the upper chamber, designed to better distribute the pressure of the heel against the insole of the shoe upper.

FUNCTIONAL IMPROVEMENT OF THE UTILITY MODEL [012] The new heel arrangement for women's shoes with internal damping mechanism of the utility model, results in the following functional improvements on the state of the art conceptions:

- reduces the impact of jumping against the floor;

- absorbs the shock resulting from walking;

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4/5

- increases the feeling of comfort of the shoes;

- transfers less vibrations to the user's spine;

- the damping mechanism employs few parts of great simplicity, facilitating production and assembly and presenting long durability and low cost.

DESCRIPTION OF THE UTILITY MODEL [013] The new heel arrangement for women's shoes with internal damping mechanism of the utility model is now described in detail based on the attached drawings, listed below:

Figure 1 - exploded perspective of the heel damping mechanism; Figure 2 - longitudinal section of the mounted heel and without load application; Figure 3 - longitudinal section of the heel mounted with applied load;

Figure 4 - longitudinal section of the isolated heel;

Figure 5 - exploded perspective of a constructive option for the jump; Figure 6 - longitudinal section of the option of the mounted and unloaded heel; Figure 7 - longitudinal section of the optional isolated heel.

[014] Figures 1, 2 and 4 illustrate the internal damping mechanism whose heel (1) is hollow, featuring an upper chamber (11) and a base (12) with a vertical hole (13). An elastic body (2) is embedded in the upper chamber (11) of the heel. A plunger (3), formed by a flat head (31) and a vertical tube (32), is positioned under the elastic body (2), so that its head (31) rests on the base (12) of the heel and its tube (32) fits inside the hole (13). At the lower end of the piston tube (32), a heel pin (41) is mounted (4). This assembly results in a clearance (F) between the top of the heel (4) and the bottom surface of the heel (1).

[015] Figure 3 allows to verify the behavior of the jump (1) under the load resulting from walking (indicated by the arrow). The impact of the heel (4) against the floor is transferred by the pin (41) to the tube (32) of the plunger

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5/5 (3), whose head (31) compresses the elastic body (2) embedded inside the chamber (11) of the heel (1). The resilient characteristics of the body's elastic material (2) cushion the heel's shock (4) against the ground.

[016] Figures 5 to 7 illustrate a constructive option for the hollow heel (1) that has a lower chamber (14), below the base (12), where part of the upper portion (42) of the heel (4) partially penetrates, better guiding the vertical damping movement.

[017] The heel (1) can also optionally have a cover (5) that fits the upper chamber (11), being intended to better distribute the pressure exerted by the heel against the insole of the shoe upper.

Claims (3)

1 - “JUMP WITH DAMPING MECHANISM” consisting of a hollow heel (1) with a base (12) provided with a hole (13), an elastic body (2) inside the heel (1) under which is positioned a plunger (3), formed by a flat head (31) and a vertical tube (32), the plunger head (31) being supported on the base (12) of the heel, while the plunger tube (32) fits inside the hole (13) at the base of the heel (1), characterized by having a single chamber (11) with smooth walls, whose internal space is completely filled by the elastic body (2) and by being mounted on the lower end of the tube ( 32) of the plunger (3) a pin (41) of a heel (4), resulting in a gap between the top of the heel (4) and the bottom surface of the heel (1). 2 - "JUMP WITH DAMPING MECHANISM", according to claim 2, characterized in that the heel (1) has a lower chamber (14), below the base (12), where it partially penetrates an upper portion (42) of the heel ( 4). 3 - "JUMP WITH MORTANING MECHANISM", according to one of claims 1 or 2, characterized by having a cover (5) that fits in the upper chamber (11) of the heel (1).