Abstract:
본 발명은 중공 코일스프링 제조방법에 관한 것으로, 그 목적은 중공부재를 이용하여 코일스프링을 제조함에 있어서 중공부재의 끝단부에 대한 처리방식을 개선하여 중공 코일스프링의 내구수명을 종래 대비 향상시킬 수 있도록 한 중공 코일스프링 제조방법을 제공함에 있다. 이를 위한 본 발명은 중공부재를 제1척에 고정하고, 마감부재를 제2척에 고정하는 단계(S10); 상기 마감부재가 중공부재의 단부에 밀착되도록 제1,2척을 상호 근접시킨 상태에서 제1척과 제2척 중 적어도 하나의 척을 회전시켜 마찰열을 발생시키는 단계(S20); 상기 마감부재와 중공부재의 사이에 발생되는 마찰열에 의해 마감부재와 중공부재의 접촉부가 용융되면, 중공부재와 마감부재가 보다 긴밀하게 밀착되도록 제1,2척을 보다 근접시켜 중공부재와 마감부재를 결합시킴으로써 중공부재의 한쪽 단부를 밀폐시키는 단계(S30); 상기 S10 단계 내지 S30 단계를 반복하여 중공부재의 나머지 한 단부에 마감부재를 결합하여 밀폐시키는 단계(S40); 상기 S30 단계 또는 S40 단계 이후, 중공부재와 마감부재의 결합부에 형성된 버어를 제거하는 단계(S50); 중공부재의 양 단부에 마감부재가 설치된 것으로 이루어진 결합체를 가열하는 단계(S60); 및 상기 S60 단계를 통해 가열된 결합체를 나선형으로 감아 코일스프링을 형성하는 단계(S70);로 이루어진 것을 특징으로 하는 중공 코일스프링 제조방법을 제공한다.
Abstract:
Springs of different types are provided with the ability to dynamically change stiffness. A number of embodiments feature hollow tubing wherein stiffness change is accomplished due to the pressure change inside the tubing which affects the stresses in tubing walls. In other embodiments inside pressure change causes variability in tubing's cross-section shape and size leading to large changes in stiffness. A number of embodiments feature spring coil diameter variability achieved by a variety of means and resulting in highly substantial changes in stiffness and for some embodiments spring length variability thus providing them with actuation capability in addition to stiffness variability.
Abstract:
A chair assembly includes a base structure defining upper and lower portions, a seat support structure having forward and rearward portions, wherein the forward portion of the seat support structure is pivotably coupled to the upper portion, and wherein the seat support structure includes a seat support surface configured to support a seated user thereon, a back support structure having forward and rearward portions, wherein the forward portion of the back supported is pivotably coupled to the lower portion, and wherein the back support structure includes an upwardly extending portion adapted to move between an upright position and a reclined position, and a control link having a first end pivotably coupled to the rearward portion of the seat support structure, and a second end pivotably coupled to the rearward portion of the back support structure.
Abstract:
El muelle está previsto para constituir un medio de amortiguación direccionable, presentando la particularidad de que sus espiras (2) tienen una especial configuración que hace que cuando se comprima el muelle, dichas espiras (2) y la propia espira superior (3) en la que incide la fuerza de empuje, además de sufrir un desplazamiento vertical, sufren igualmente un desplazamiento transversal hacia un lado, dependiendo de la orientación de las espiras (2), lo que da lugar a que se produzca una amortiguación direccionable de la fuerza ejercida en el cuerpo en el que estén aplicados los muelles (1), como puede ser un colchón (5), un asiento, almohada, cojín, etc. Dicho muelle (1) se obtiene en base a un procedimiento que consiste en posicionar un muelle de espiras convencionales en "S", y sujetarlo a través de sus dos espiras extremas, para realizar unos empujes laterales sobre las espiras intermedias, para conseguir una deformación de dichas espiras, que en combinación con un desplazamiento de las espiras, se consigue que éstas pasen de la configuración en "S" convencional a una configuración aproximadamente en "Z", efectuando el tratamiento térmico del conjunto del muelle para conseguir la definitiva transformación de éste.
Abstract:
In one embodiment, an energy management system can comprise: a support structure; a covering; and a plastically deformable compression spring located between the support structure and the covering. In one embodiment, a method of absorbing energy can comprise: impacting a portion of a vehicle comprising an energy management system and plastically deforming the compression spring. A method for energy management in a vehicle comprises installing the energy management system in a vehicle.
Abstract:
The invention relates to a spring (10), in particular for a locking device of a vehicle seat, designed as a yoke spring defining an axis (A) and made of a spring wire, the cross section thereof comprising a cross section diameter (q), having one leg (10a) each on both ends of the spring wire, wherein the two legs (10a) can pivot relative to each other in the circumferential direction of the axis (A), thereby transitioning the spring (10) from a relaxed state into a tensioned state, having at least one first winding (10b) between the legs (10a) wound completely around an axis (A) and having a winding diameter (di) in the relaxed state, and having at least one adjacent second winding (10b) between the legs (10a) disposed offset along by the axis (A) by a pitch (h), and optionally wound not fully about the axis (A) and having a winding diameter (d2) in the relaxed state, wherein the pitch (h) is less than the cross section diameter (q).
Abstract:
Die Erfindung betrifft einen Druckspeicher (12), insbesondere für ein Hydroaggregat einer hydraulischen Fahrzeugbremsanlage mit elektronischer Radschlupfregelung. Druckspeicher (12) mit einem Speicherkolben (22), der von einer Kolbenfeder (36) beaufschlagt ist, zählen zum Stand der Technik. Zur Einsparung von Teilekosten für die Kolbenfeder (36) und zur Einsparung von Bauraum des Druckspeichers (12) wird vorgeschlagen, eine Kolbenfeder (36) einzusetzen, die wenigstens eine erste Federwindung (40) aufweist, deren Außendurchmesser kleiner ist als der Innendurchmesser einer sich daran anschließenden zweiten Federwindung (42).
Abstract:
Un sistema de suspensión modular para productos acolchonados compuesto por uno o más módulos, cada módulo comprende una base modular conformada por una pluralidad de celdas, uno o más elementos elásticos colocados sobre cada celda y una cubierta que se conecta a la parte superior de cada elemento elástico, para formar subensambles. Los componentes de cada subensamble varían según su posición dentro del sistema de suspensión modular. Un elemento de unión se utiliza para conectar a uno o más módulos para formar el sistema de suspensión acorde a los requerimientos de fabricación del producto acolchonado.