B29L2031/3044

INJECTION MOLDED ARTICLE
20200010038 · 2020-01-09 ·

This injection molded article has a body part and a movable part. The body part has a first stopper part and a second stopper part, while the movable part has a movable body and a first rib and a second rib that are formed to protrude at both widthwise end parts of the movable body. A first groove and a second groove that extend in the depth direction perpendicular to the axial direction of a hinge part, are respectively formed between the movable body and the first rib and between the movable body and the second rib.

Synthetic resin molded-article and method for molding same
10525621 · 2020-01-07 · ·

A molding method for a synthetic resin molding reduces a disturbed flow of molten resin at a side edge of a molding body during injection molding, and allows the design surface of the molding body to have aesthetic appearance. The synthetic resin molding includes a bend arranged on a side edge of the molding body and bending toward its back surface, and a flange protruding laterally from the bend and including a notch. The molding method includes arranging a gate at a position corresponding to an end of one side of the flange in a longitudinal direction and performing injection molding using a colored resin material containing a luster agent kneaded in the material, and forming a thin portion of the bend in a longitudinal direction of the bend to form a groove on a back surface of the bend.

Co-injection of molded parts for weight reduction

A molded vehicle component (10) having a skin (14) and a lower density core (16) formed by a co-injection molding process. In a first phase, a first material for forming the skin of class A surface material is injected into a mold to partially fill the mold cavity (104). Thereafter, in a second phase, a second material is injected into the same cavity (104) to complete filling of the mold cavity (104). The second material can flow only to portions of the part where the first material is still molten and displaces the molten core of the first phase, pushing it away from co-injection gates until the mold cavity is full. The second material is pre-treated with a chemical blowing agent in order to reduce part weight by foaming the core material. The finished co-injection molded part (10) has one material on all visible class A surfaces (14) and a core (16) that is a different, less dense material.

Load-bearing parts with networks of interconnecting branches and methods of making the same

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.

Blow molded vehicle parts with foam layer and hollow core

An armrest for a captain's chair of a vehicle includes an outer layer and an inner layer including a foaming agent and defining a hollow core. At least one of the inner layer and the outer layer may include a reinforcing material and/or may be varied in thickness along its length. The armrest may include a third layer defining the hollow core. A related method includes heating a parison having a first and second layers, mixing a foaming agent into the second layer prior to heating, feeding the heated parison between mold halves, clamping the heated parison by moving the mold halves together, and pushing the layers of the heated parison outward, using blown air, such that the first layer is adjacent the mold and the second layer forms a hollow core of the armrest, the hollow core being partially filled by expansion of the second layer during cooling.

AUTOMOTIVE PART

The present invention relates to an automotive part (such as an exterior automotive part, a semi-exterior automotive part or an interior automotive part) prepared from a thermoplastic composition comprising: from 48-95 wt. % based on the weight of the composition of a heterophasic propylene copolymer; wherein said heterophasic propylene copolymer consists of i) a propylene-based matrix consisting of a propylene homopolymer and/or a propylene--olefin copolymer, said propylene -olefin copolymer consisting of at least 70 wt. %, and ii) a dispersed ethylene--olefin copolymer comprising ethylene and at least one C3 to C10 -olefin; from 0-20 wt. %, preferably from 1-20 wt. % ethylene--olefin elastomer comprising ethylene and a C3 to C10 -olefin; from 1-30 wt. % high aspect ratio; from 0.05-2 wt. % antioxidant additive selected from the group consisting of i) a tocopherol or a tocotrienol; or ii) a hydroxylamine from 0-3 wt. % an additional additive.

LOAD ENERGY-ABSORBER

A fiber-reinforced resin load energy-absorber has: a multi-layer woven fabric or laminated woven fabric as a reinforcement base material; a resin as a matrix; slits; binding threads; and reinforcing members. The reinforcement base material has corners formed by bending said reinforcement base material. Slits are provided at least in the portions of the reinforcement base material that form the corners. The binding threads bind each of the woven fabric layers in the multi-layer woven fabric or laminated woven fabric. The binding threads are configured so as to bind each of the woven fabric layers when the multi-layer woven fabric or laminated woven fabric is divided in the thickness direction into at least two woven fabric layers. The reinforcing members are held inside the slits.

VIBRATION WELDING DEVICE, METHOD FOR CONNECTING AT LEAST TWO ELONGATED COMPONENTS BY VIBRATION WELDING, AND A PRODUCTION METHOD FOR THE VIBRATION WELDING DEVICE
20190315068 · 2019-10-17 ·

A vibration welding device having a mechanically coupled multiple vibrator. Within this vibration welding device, the plurality of vibration units are arranged relative to an elongated tool such that the first direction of vibrations of the individual vibration units is oriented approximately transverse to a longitudinal axis of the tool such that, during a vibration welding process, two components are weldable to each other by vibrations different than a longitudinal direction of the components.

BUMPER STRIP FOR VEHICLE AND MANUFACTURING METHOD THEREOF

A bumper strip for a vehicle may include an upper surface portion forming an upper surface, a rear surface portion downwardly extending from the rear end portion of the upper surface portion and accommodated on a hood seating portion of the bumper, a matching portion cover of a shape extending in the rearward and downward directions from the rear surface portion, and a side surface portion forming a side surface, and wherein the upper surface portion, the rear surface portion, the matching portion cover and the side surface portion are integrally formed.

SYSTEM AND METHOD FOR FORMING OF 3D PLASTIC PARTS
20190291333 · 2019-09-26 ·

Systems and methods for forming 3D plastic parts that are cost effective in low volume, have excellent fit and finish, and use many components from 2D construction are disclosed. The systems and methods involve selecting a design and modelling the design. The design comprises 2D and 3D components of plastic parts. A 3D forming buck corresponding to the 3D component is manufactured. At least one of a 2D part and the 3D forming buck may be heated. The 2D part may be loaded onto the 3D forming buck for a predefined period of time. The 3D part formed after the loading may be separated from the 3D forming buck. The 3D part is the 2D part generally having taken the shape of the 3D forming buck. The 3D part may be cooled to obtain an end product.