Abstract:
A method of manufacturing a bladder element comprises forming at least one of a first (20), a second (22), and a third (24) polymeric sheet to have a contoured surface profile (P). The first, the second, and the third polymeric sheets are stacked so that the second polymeric sheet is between the first polymeric sheet and the third polymeric sheet. The method comprises applying fluid pressure between the first polymeric sheet and second polymeric sheet, between the second polymeric sheet and the third polymeric sheet, or between both, forcing a first surface of the second polymeric sheet into contact with an inner surface of the first polymeric sheet, or a second surface of the second polymeric sheet into contact with an inner surface of the third polymeric sheet, or both. A bladder element is also disclosed.
Abstract:
A method of forming a composite sheet that is made of a first sheet and a second sheet is disclosed. The first and second sheets are bonded to each other at a number of spaced apart discrete inter-sheet bond locations. The method involves mechanically deforming a precursor nonwoven web to form a first web with deformations therein. The deformations form protrusions that extend outward from the first surface of the first web and openings in the other surface of the web. The method involves feeding the first nonwoven web with the deformations therein into a bonding nip where at least a portion of the distal ends of the protrusions is bonded to a second web to form a tip-bonded composite web.
Abstract:
본 발명은 필름기둥쿠션의 제조방법 및 그 제조방법으로 구성되는 필름기둥쿠션에 관한 것으로, 보다 상세하게는 상부금형(20)과 하부금형(30)을 상, 하부로 대응되게 각각 구비하되, 상기 상부금형(20)의 하부와 하부금형(30)의 상부에 상, 하부필름(11, 12)을 각각 형성하고, 양측으로 관통되는 공간부(14)가 형성된 다수의 필름기둥(13)과, 상기 필름기둥(13)의 공간부(14)에 기둥금형(40)을 각각 위치시킨 후, 상기 상, 하부필름(11, 12)의 사이에 다수의 필름기둥(13)을 배열하되, 다수의 상기 필름기둥(13)의 상, 하부 일측면과 상, 하부필름(11, 12)의 일측면을 고주파 접착한 후, 상기 기둥금형(40)을 탈거 하고 상기 상, 하부필름(11, 12)의 테두리 부분만 고주파 접착하여 필름기둥(10)을 가진 공기저장부를(15) 제조하게 됨으로서, 간단한 제조방법으로 제조시간을 단축시킬 수가 있고, 고주파 접착을 이용하여 완성된 필름기둥쿠션(10)은 한 곳에 외부로부터 압력이 가해지면 그 압력이 여러 개의 주위 필름기둥(13)으로 분산되어 얇은 두께에도 불구하고 쿠션이 부풀어 오르지 않고 평면을 유지할 수 있게 해주며, 체중이 가해진 부위가 바닥에 닿는 Sinking이 일어나지 않아 체중의 분산력을 높이고, 신체 돌출부의 최대 접촉압력을 낮추어 주어 안락감을 극대화 시키고 욕창을 예방할 수 있게 해 줌으로서 의자쿠션이나 자동차 시트, 욕창방지 매트리스 등에 널리 적용이 가능한 유용한 발명인 것이다.
Abstract:
A method of bonding a first corrugated sheet and a second corrugated sheet to provide a honeycomb core assembly. The first corrugated sheet includes a plurality of lower node regions and the second corrugated sheet includes a plurality of upper node regions. The method includes applying a radio frequency activatable adhesive to one or both of a first lower node region of the first corrugated sheet and a first upper node region of the second corrugated sheet, positioning the first corrugated sheet adjacent to or in contact with the second corrugated sheet at the first upper node region and the first lower node region, and exposing the radio frequency activatable adhesives to a radio frequency to activate the radio frequency activatable adhesive, such that the first corrugated sheet is bonded to the second corrugated sheet.
Abstract:
Multi-layer bags may be formed to include first and second sidewalls joined along a first side edge, an opposite second side edge, and a closed bottom edge. The first and second layers may be non-continuously laminated together in discrete sections to include bonded regions in which the layers are bonded and unbonded regions in which the layers are not bonded. Such a bag may be described as a "bag- in-a-bag" type configuration in which the inner bag is non-continuously bonded to the outer bag. The inventors have surprisingly found that such configurations of non-continuous bonding provides increased and unexpected strength properties to the multi-layer films and bags.
Abstract:
Le dispositif de soudage (10) comporte une sonotrode (30), un support (16) pour les éléments (21) à souder, mobile relativement à la sonotrode (30), un capteur de mesure d'effort (32), propre à mesurer l'effort appliqué par les éléments à souder (21) sur la sonotrode (30), et des moyens (24) pour déplacer le support (16) et la sonotrode (30) l'un vers l'autre jusqu'à ce que l'effort mesuré par le capteur (32) atteigne une valeur réglable prédéterminée non nulle. Le dispositif de soudage (10) comporte en outre des moyens (34) d'activation de la sonotrode (30), propres à maintenir la sonotrode (30) inactive tant que l'effort mesuré par le capteur (32) est inférieur à la valeur prédéterminée, et à activer la sonotrode (30) lorsque l'effort mesuré par le capteur (32) est au moins égal à la valeur prédéterminée.
Abstract:
The present invention relates to an ultrasonic multi-welding system and method for geocell sheets. More particularly, the present invention relates to an ultrasonic multi-welding system and method for geocell sheets, wherein tool horns and support jigs are arranged in the lengthwise direction of the geocell sheets, and the geocell sheets are stacked into layers such that the tool horns and the support jigs in odd-numbered rows and the tool horns and the support jigs in even-numbered rows are interlinked to perform an ultrasonic welding process in a zigzagged manner. The ultrasonic multi-welding system for geocell sheets according to the present invention comprises: a plurality of support jigs arranged on a main body to support geocell sheets disposed thereon; a plurality of tool horns arranged above the geocell sheets such that the tool horns are movable in the upward and downward directions in order to weld the geocell sheets through ultrasonic vibration; a plurality of detachment means for detaching the ultrasonically welded geocell sheets from the support jigs; and a microcomputer which controls the support jigs and the tool horns such that the support jigs and the tool horns in odd-numbered rows and even-numbered rows operate in conjunction with each other to enable the geocell sheets vertically stacked into layers to be adhered together in a zigzagged manner every time a geocell sheet is spread on top of another geocell sheet.
Abstract:
A fluid-filled chamber (33) may include an outer barrier (40), a tensile member (50), and a fluid. The tensile member may be located within barrier and formed from a textile element that includes a pair of spaced layers (51, 52) joined by a plurality of connecting members (53). A method of manufacturing the chamber may include locating a textile tensile member between two polymer elements (41, 42). Pressure and heat are applied to the tensile member and the polymer elements in a first area and in a second area. The pressure is greater in the first area than in the second area. In addition, the polymer elements are bonded together around a periphery of the tensile member. Other means to impart a tapered configuration to the chamber are also disclosed.
Abstract:
A multiphase polymeric material comprises a first rigid continuous phase and a second elastic phase dispersed in the first phase. The multiphase polymeric material may be formed into polymeric strips and used to make a cellular confinement system which is suitable for use in cold areas.