A rail extension, comprising: a base extending from an end of the rail extension, wherein the base includes vehicle rail attachments configured to attach to a vehicle rail; a front member configured for attachment to a bumper beam; a body extending from the base to the front member; wherein the body comprises reinforcing members; wherein the body comprises a first polymeric material; wherein the reinforcing members comprise a second polymeric material.

A vehicle member comprises a wooden member and a resin cover member integrally covering the wooden member. The vehicle member absorbs or transmits a received load. The cover member integrally includes a load acting portion and an attaching portion. The wooden member is positioned in the vehicle member so that a shaft center direction of annual rings is aligned with an input direction of the load. The attaching portion is attachable to an attached member of a vehicle.

A side rail assembly connected to a battery tray in a motor vehicle includes a side impact rail having a first portion with a first strength, a second portion with a second strength, the second portion spaced apart from the first portion, and a third portion with a third strength, the third portion connected to the first portion and the second portion. The third strength is greater than the first strength and is greater than the second strength.

A metal shock absorption element having a first metal sheet and a second metal sheet. The first metal sheet is shaped in the form of a longitudinally open metal profile and has a substantially C-shaped cross-section. The second metal sheet is shaped in the form of a longitudinally open metal profile and has a substantially C-shaped cross section. The second metal sheet is inserted in a first longitudinal channel of the first metal sheet. The second metal sheet is made integral in one single piece with the first metal sheet in a collection of points to create a metal honeycomb structure having a closed cross-section and metal channels.

An impact absorbing element comprising a tubular body for absorbing the impact energy in a vehicle is proposed, the impact absorbing element having a double honeycomb-shaped cross section and being configured as a 10-face polygonal line, and honeycomb points being configured which are situated at a spacing (b2) from one another of approximately half the overall height (b1) of the impact absorbing element and define a width.

A side rail assembly connected to a battery tray in a motor vehicle includes a side impact rail having a first portion with a first strength, a second portion with a second strength, the second portion spaced apart from the first portion, and a third portion with a third strength, the third portion connected to the first portion and the second portion. The third strength is greater than the first strength and is greater than the second strength.

In one example, a load-bearing, three-dimensional printed part resists a load. The load-bearing part has a load-receiving member, a support member, and a network of interconnected branches. The load-receiving member has an outer surface that receives the load. The support member is offset from the load-receiving member along a first direction. The network of interconnected branches extends from the load-receiving member to the support member, and includes a first primary branch and an auxiliary branch. The first primary branch has a first primary-branch end attached to one of the load-receiving member and the support member. The auxiliary branch has a first auxiliary-branch end attached to the first primary branch, and a second auxiliary-branch end attacked to one of (i) the load-receiving member, (ii) the support member, and (iii) a second primary branch.

A crash can for a vehicle includes a multi-cell structure that includes at least four hollow cuboids, each defined by four walls that meet at 90 degree angles and at least two of the cuboids share a wall. In another example, a crash can includes a multi-cell structure that includes a hollow cuboid having four walls, and four hollow isosceles trapezoidal prisms having a long base, a short base, and two legs. The multi-cell structures provided herein may increase energy absorption by the crash can if involved in a collision, reducing energy transfer to a vehicle frame and occupants therein.

A vehicle member comprises a wooden member and a resin cover member integrally covering the wooden member. The vehicle member absorbs or transmits a received load. The cover member integrally includes a load acting portion and an attaching portion. The wooden member is positioned in the vehicle member so that a shaft center direction of annual rings is aligned with an input direction of the load. The attaching portion is attachable to an attached member of a vehicle.

A rail extension, comprising: a base extending from an end of the rail extension, wherein the base includes vehicle rail attachments configured to attach to a vehicle rail; a front member configured for attachment to a bumper beam; a body extending from the base to the front member; wherein the body comprises reinforcing members; wherein the body comprises a first polymeric material; wherein the reinforcing members comprise a second polymeric material.