A high tension coil spring structure for a bed mattress includes spring bodies and exposed wiring portions which absorb an external load. Diameter-increasing portions (A) are formed on at least one of upper and/or lower end wiring portions (14, 14′) of body wiring portions (12), and provide spaces in which upper and/or lower exposure start wiring portions (16-5, 16-5′) move upward and downward. Rigid support ends (18) are formed on at least one of the body wiring portions (12) and upper and lower exposed wiring portions (16, 16′), and absorb a compressive load. The diameter-increasing portions and the rigid ends of the coil spring structure fundamentally prevent noise caused by friction between the exposed wiring portions and surrounding wiring portions when the exposed wiring portions are compressed and significantly increase the elasticity of the exposed wiring portions.

A shock absorber capable of suppressing load fluctuation after the start of plastic deformation. The shock absorber formed of a hollow molded body, including a load input surface; a fixed surface opposed to the load input surface; and a connection surface connecting the load input surface and the fixed surface. The connection surface includes at least one transverse groove rib, the at least one transverse groove rib includes at least two bending induction portions provided at positions where distances from the load input surface are different from each other, the at least two bending induction portions each being convex toward an outside of the shock absorber.

A damper is disposed in a holding hole that passes through, in a passing-through direction, a supported member that is supported by a supporting member. The dumper includes a tubular body defining therein a through hole extending in the passing-through direction. The tubular body is elastically deformable between a first form and a second form. The tubular body in the first form has an outer shape that is smaller than the holding hole. The tubular body in the second form has an outer shape that is equal to or greater than the holding hole.

A plastic spring, a pump core, a lotion pump and a press-type packaging container. The plastic spring includes at least one spring unit. Each spring unit includes a first support member, a second support member, and at least two torsion arms. The at least two torsion arms are arranged between the first support member and the second support member, and both ends of each of the torsion arms are respectively connected with the first support member and the second support member. Each of the torsion arms includes at least one vertical section, and an end of each vertical section is connected with the first support member or the second support member.

An impact absorbing apparatus includes a first chamber including a first chamber wall and a first valve disposed in the first chamber wall. The impact absorbing apparatus includes a second chamber including a second chamber wall and a second valve disposed in the second chamber wall. A plurality of connecting pillars connects the first chamber to the second chamber. The plurality of connecting pillars is configured to shift position in response to a first impact. The first valve is configured to pass air in and out of the first chamber. The second valve is configured to pass air in and out of the second chamber.

A variable stiffness damper system including an inner spring positioned between a first wall and a second wall, in which the inner spring includes a first member and a second member each coupled together at a distal end by an inner bumper. The first member and the second member are each contoured toward one another. The first member, the second member, and the inner bumper form a cavity therebetween. An outer spring is positioned between the inner spring and the first wall or the second wall. The outer spring includes a spring arm contoured toward the inner spring. The outer spring includes an outer bumper positioned between the inner bumper and the first wall or the second wall. The inner bumper and the outer bumper are selectively couplable to one another based on a load applied to the damper system.

A drive assembly for a vehicle drive train includes a base assembly including a base hub configured for non-rotatably connecting to an outer circumferential surface of a transmission input shaft. The base assembly includes a torsional damper fixed to the base hub. The torsional damper includes an input section and an output section drivingly connected by springs. The springs allow relative rotation between the input section and the output section. The output section of the torsional damper is non-rotatably fixed to the base hub. A hub assembly extension is configured for non-rotatably connecting to an engine crankshaft. The hub assembly extension is non-rotatably fixed to the input part of the torsional damper at an engine side of the torsional damper. The torsional damper allows relative rotation between the hub assembly extension and the base hub.

An apparatus for supporting a flexible conduit which includes a flexible member and a rigid member in fluid communication with the flexible member. The apparatus has a releasable connector and a shock absorber. The releasable connector has a first member and a second member. When a releasing force is applied to the flexible conduit, the releasable connector separates. The shock absorber is configured to absorb a load when the releasable connector separates. The shock absorber may include a compressible material that includes a metal, such as a metal foam or a corrugated metal sheet. The releasable connector and the shock absorber may be integrally formed together.

A shock isolator assembly comprises a base a platform and a plurality of self-resetting buckling isolators providing a three-stage response to a dynamic load acting between the base and the platform. The three-stage response of the self-resetting buckling isolators comprises a tension stage when the dynamic load exceeds a threshold tension load, a compression stage when the dynamic load exceeds a threshold compression load, and a rigid stage when the dynamic load is below the threshold tension load and the threshold compression load.

A damper for electric power steering disposed on each of opposite ends of a worm shaft includes a rubber unit made of a rubber material, and a damper frame disposed on each of opposite sides of the rubber unit. The rubber unit includes a concave part which is concavely formed by forming a groove on an outer circumference thereof, and a convex part which is a convex remaining part.