Disclosed herein are cushioning structures and methods for their manufacture. Certain aspects provide a cushioning structure comprising a plurality of unit cells formed in an array, each unit cell of the plurality of unit cells comprising one or more first walls parallel to a central plane and a first protruding structure that protrudes from the central plane, the first protruding structure forming a concave structure on a first side of the central plane and a convex structure on a second side of the central plane, the first protruding structure comprising one or more walls at a non-perpendicular angle to the central plane.

In a shock-absorbing member in which a wood member is embedded in a resin covering member so as to be integrated therewith and in which the wood member is collapsed when subjected to an impact load, thereby absorbing a portion of the impact load, sealing members are disposed between both end surfaces of the wood member in an axis direction of annual rings and an inner surface of the covering member, so as to hermetically cover both end surfaces of the wood member.

A shock absorber includes a three-dimensional structure composed of a unit structure repeatedly, regularly and continuously arranged in at least one direction, the unit structure being a three-dimensional shape formed by a wall having an external shape defined by a pair of parallel planes or curved surfaces. In the shock absorber, a differently shaped portion which does not correspond to the wall defining the unit structure is locally provided in a shock absorbing region which is a region in which the three-dimensional structure has the unit structure disposed.

A shock absorber includes a three-dimensional structure composed of a unit structure repeatedly, regularly and continuously arranged in at least one direction, the unit structure being a three-dimensional shape formed by a wall having an external shape defined by a pair of parallel planes or curved surfaces. When the unit structure occupies a cuboidal space representing a unit space and defined by mutually orthogonal three sides having a first side extending in an axial direction in which the shock absorber exhibits a shock absorbing function as the shock absorber receives a load and second and third sides each extending from one end of the first side in a direction orthogonal to the axial direction, and the first side has a length L1 and a longer one of the second and third sides has a length L2, the shock absorber satisfies 1.1≤L1/L2≤4.0.

A invention disclosed a bio-mimicked three-dimensional laminated structure at least comprising a flexible lattice structure, which is characterized in that the flexible lattice structure comprises a plurality of particle units are uniformly disposed and evenly distributed in the X-axis, the Y-axis, and the Z-axis direction and evenly distributed as a lattice matrix of an array grid in an identical plane; wherein each of the particle units is an opened hollow shell or a close shell. The design eliminates the need for support structures and the subsequent post-processing required to remove them. A shell-shaped close cell bio-mimicked three-dimensional laminated structure bio-mimicking a sea urchin shape was introduced for the load-bearing structure application.

An athletic footwear having an improved midsole that is having a double opposing helical network. The helical network can morph itself under compressive force.

Disclosed herein is an energy absorber having excellent impact resistance and excellent impact energy absorbability. The energy absorber includes an olefin-based resin composition obtained by mixing an olefin resin, a polyamide resin, and an elastomer having a reactive group that reacts with the polyamide resin, wherein the olefin-based resin composition has a continuous phase containing the olefin resin and a polyamide resin-based dispersed phase dispersed in the continuous phase, and the polyamide resin-based dispersed phase has a structure in which the elastomer is contained in a matrix phase containing the polyamide resin.

An apparatus and method for improving the safety and performance of an automobile in crash events is disclosed. The safety device includes first and second crash pad regions and a connecting member region disposed between the first and second crash pad regions. At least a portion of the connecting member region is arranged to move in one of an upward and downward direction at the initial moment of a crash to absorb crash energy. The safety device is arranged to collapse on itself upon continuation of the crash. In some embodiments, the safety device collapses in a horizontal direction upon continuation of the crash.

A vehicle body includes a structural member having an inner surface defining an elongated cavity. The structural member includes an outer panel member joined to an inner panel member. A tension web secured in the cavity separates the outer and inner panel members. A reinforcement member is positioned in the cavity of the structural member. The reinforcement member contacts the transverse web and a gap is provided between the reinforcement member and the inner surface of the structural member. The reinforcement member including a base member having a plurality of bumpers extended in a width direction of the reinforcement member. The plurality of bumpers face one of the inner surface and the tension web. An adhesive secured to the reinforcement member is activatable to expand toward the inner surface to define a joint between the reinforcement member and the structural member and to at least partially fill the gap.

A network structure is formed in a three-dimensional mesh shape in which a plurality of polyhedron frames are arranged. Each polyhedron frame is formed by a plurality of apexes disposed in a three-dimensional space and connecting members for connecting the apexes. The plurality of polyhedron frames are regularly arranged so that the polyhedron frames are displaced at a constant degree when a constant load is applied.