284results about How to "Improve impact absorption performance" patented technology

A facemask coupled to a sports helmut such that it will absorb a very high percentage of the impact energy from a ball or other oncoming force. The shock-absorbing facemask attachment assembly includes a housing attached to a helmet. An insert may be coupled to the facemask and the housing such that the insert is pushed further into the housing in response to an applied force. Alternatively, one or more springs may be coupled to the facemask and the housing such that the springs are compressed further toward the housing in response to an applied force. As another alternative, a spring assembly may include at least one spring coupled to the helmet and the housing and at least one spring coupled to the facemask and the housing.

The present invention relates to composite polymer material, and is especially stretching material with negative Poisson's ratio and its preparation process and use. The foamed material obtained through secondary foaming process or screw extrusion foaming process has microscopic double fan-shaped composite structure with middle layer of regular honeycomb structure, outer layer of ordered gradually lengthened arrangement and micropores of 80-150 micron size. The foamed material has the mechanical performance of perpendicularly expanding while being stretched and perpendicularly contracting while being extruded. By means of special preparation process, the foamed material may have raised compression resistance, shock absorption, rebound elasticity and other mechanical performance. The unique mechanical performance makes the material possess application in composite board, waste water treatment, deep water job and other fields.

Of side wall portions (60a, 60b) of a tubular body portion (52) mainly constituting an impact absorbing member (50), a wider side wall portion (60a) on the vehicle inner side is provided with a projecting rib (70) projects outward in the direction perpendicular to the axis of the body portion. The projecting rib (70) extends from an axial end (52a) adjacent to a mounting plate (54) and parallel to the axial direction of the body portion. Therefore, even when an impact load is applied to the impact absorbing member (50) in an oblique direction with respect to the vehicle to generate a moment load, the existence of the projecting rib (70) prevents the impact absorbing member from falling down laterally. Accordingly, excellent impact-absorbing properties are stably obtained. The projecting rib (70) is formed not to reach the load input side, i.e., the axial end (52b) adjacent to a mounting plate (56), where collapse starts. Therefore, no load increase occurs in a crash initial stage to well maintain impact-energy-absorbing properties.

A dual arch dental appliance including a body which contains a pair of impact absorbing members located in molar regions of the arches. The impact absorbing members are selected from plastic material that exhibits high impact absorption coupled with low resilience or rebound. The result is an appliance which transfers minimal shock to the wearer. The appliance preferably further includes a bumper for providing enhanced impact protection to all of the user's upper and lower teeth. An airway opening is preferably provided to facilitate breathing when the appliance is clenched between the teeth. A post may be provided for structural reinforcement of the airway opening and, optionally, for receiving a tether for fastening the device to a helmet.

An ancillary device for positioning a bone graft between bones separated by an articular slot, to ensure arthrodesis of a joint, wherein the bone graft is placed in a recess provided at the end of one or more bones defining the articular slot, and comprising means for driving the bone graft, provided with support means on the bone graft suitable for moving the latter in the recess, and actuation means, functionally connected to the driving means, and capable of being handled in order to control the movement of the bone graft.

On each of left and right sides of a vehicle body, a gusset is provided spaced in a rearward direction of a vehicle body from the distal end of a front side frame by a predetermined distance, a tension member extends between and interconnects the distal end of the front side frame and an outer end portion of the gusset so as to prevent the gusset from peeling off the front side frame, and a mounting plate spans between and interconnects the respective front ends of an inner bumper beam extension extending forward from the front end of the front side frame and an outer bumper beam extension extending forward from the front end of an upper member. A bumper beam is joined to the mounting plates on the left and right sides of the vehicle body.

An improved composite for absorbing and dispersing impacting forces is disclosed. The composite includes a flexible plastic enclosure defining an internal cavity. The flexible enclosure is generally impermeable to air and capable of having its internal pressure changed. The composite further includes a foam core filling the cavity and retained within the cavity and adhered on substantially all of its external surface to the internal surface of the cavity. The cavity can be pressurized for higher impact absorbance. Methods for fabricating the composites are disclosed, as well.

A hip protector pad absorbs impact energy at a vulnerable area of a greater trochanter of an adult human hip. The pad has a continuous sheet of flexible honeycomb material having faces covered with a cover material and a layer of compliant and resilient foam on an inner side and an outer side of the honeycomb material. The pad is flexible to conform to a shape of the hip area. The cover material reduces a penetration of the foam into cells of the honeycomb material when subjected to impact. The pad is effective to reduce an impact of a fall of an adult human on the vulnerable area to be below an average adult human hip fracture impact level.

A front buckling point and a rear buckling point are set at non-end positions along a longitudinal direction of a front side member respectively. Further, the front buckling point and the rear buckling point are respectively arranged at different positions in the width and vertical directions of the front side member. The front buckling point is arranged on an outboard and upper side of the front side member. The rear buckling point is arranged on an inboard and lower side of the front side member.

Formula of shock-absorbing EVA foaming sections and its production are disclosed. The formula consists of vinyl-vinyl acetate multi-polymer 30 proportion, styrene-isoprene-styrene block multi-polymer 25 proportion, vinyl-acrylic acid multi-polymer 10 proportion, hydrated magnesium silicate 20 proportion, zinc oxide 1.5 proportion, bridging agent 1.2 proportion, bridging auxiliaries, foaming agent 3.25 proportion and colorant 3 proportion. The process is carried out by blending, internally mixing, open milling, tying to obtain plate and grain, mold pressing or injection mold pressing, grinding while cutting for foaming plate and secondary foaming. It can be used to produce EVA sole.

The invention discloses acrylic foaming damping foam which is applied to an OLED module and comprises a release film layer and an acrylic foam layer, the release film layer and the acrylic foam layer are overlapped together, the acrylic foam layer is formed by coating and drying acrylic foam coating liquid, and the acrylic foam coating liquid is prepared from the following components in parts by weight: an acrylic polymer, a curing agent, foamed microspheres, an inorganic filler, a dispersing agent, an inorganic pigment and an organic solvent. The acrylic foam tape prepared by the invention can absorb impact force, has excellent impact absorbability, can be widely applied to the periphery of liquid crystal as a buffer material by utilizing the characteristics, cannot cause water decomposition due to overhigh humidity, and has excellent durability.

The invention relates to an ultralow-hydrogen high-toughness submerged arc welding flux core and a submerged arc flux-cored wire. The welding flux core comprises the following components of: CaF2, Na2SiF6, ReF, BaCO3, CaCO3, MgO, TiO2, SiO2, ZrO2, boride, Na2O, K2O, Mn, Al-Mg, Ni, Ti, Si, Re and the balance of Fe. When the welding flux core is matched with a high-alkalinity sintering welding flux, the weld metal has the impact absorbed power of more than 80J at the temperature of 60 DEG C below zero; when the welding flux core is matched with a low-hygroscopicity smelting welding flux, the weld metal has the impact absorbed power of more than 90J at the temperature of 40 DEG C below zero; and when the welding flux core is matched with any one welding flux, weld diffusion hydrogen content is less than 5ml/100g. The standard specific ultralow-hydrogen range is achieved; and the submerged arc flux-cored wire is high in cold crack resistance, has high in fracture toughness value, is suitable for low-alloy high-strength steel and can be used for welding important structures.

The invention discloses high-strength high-toughness submerged arc welding wires. Chemical components of the wires comprise, by weight, 0.05-0.10% of C, no more than 0.20% of Si, 0.6-1.20% of Mn, 3.00-3.8% of Ni, 0.01-0.05% of Ti, 0.001-0.005% of B, no more than 0.02% of Cu, no more than 0.008% of S, no more than 0.010% of P, no more than 0.005% of As, no more than 0,005% of Sb, no more than 0.005% of Sn, no more than 0.006% of N, no more than 0.05% of O and the balance Fe and unavoidable impurities. A manufacturing method sequentially comprises the steps of molten iron desulphurization, converter iron smelting, LF furnace refining, continuous casting, wire rolling, coil rod shelling, acid picking, borax coating, wire drawing and copper plating, and then the finished welding wires with the diameters being respectively 3.2mm and 4.0mm are manufactured. Fracture toughness delta0 (-10 DEG C) is more than or equal to 0.25mm, the welding wires are applicable to 420-460 MPa level low-alloy high-strength steel, and the welding wires can be used in welding of the important structures like ocean engineering structures, bridges, ships and pressure vessels.

A damping device (10) comprises laminated rubbers (13) interposed at four corners between a support having the floor plate of a construction machine and a movable body having the seat body of operator, and a pair of dampers (14, 15) having one end fixed to the lower supporting plate (11) on the support side and the other end fixed to the upper supporting plate on the movable body side.The laminated rubbers (13) are arranged while spaced apart in the front/back direction and the right/left direction with reference to the seating direction of the operator. One damper (14) is arranged along the front/back direction at a position corresponding to the center in the right/left direction between the laminated rubbers (13) arranged in the right/left direction, and the other damper (15) is arrangedalong the right/left direction on the front side of the center in the front/back direction between the laminated rubbers (13) arranged in the front/back direction.

The invention provides an optical ultraviolet curable resin composition, a cured product and a display device, wherein the ultraviolet curable resin composition is a liquid resin composition and cured by irradiation with ultraviolet light; the heat resistance, the light resistance, and the moisture resistance, namely optically superior qualities are stably kept for a long time and the re-stripping property, the shock-resistance absorption and operation are excellent. The optical ultraviolet curable resin composition comprises (A) a polymer obtained by reacting polyether glycol (a-1) with alpha, beta unsaturated carbonyl compound (a-2) with function group reacted with the hydroxyl group; and (B) a photopolymerization initiator, wherein the functional group is preferably isocyanic acid ester or carboxyl group as the unsaturated carbonyl, preferably a (meth ) acryl. The resin composition is used for laminating at least two kinds of components selected from a component of the display device namely a display panel, a protection plate, and a laminar function part.