Corner structure of resinous molded part
AssigneeYazaki Corporation
InventorsSusumu Mizuse, Naoto Taguchi
Life of this patent
Estimating the term…
Abstract
A corner structure of a resinous molded part includes a base portion and a pair of lever portions which are formed integrally with the base portion. The molded part is provided with cut-outs which are arranged at corners where the base portion intersects the lever portions. A thickness of a portion outside the recess is established to be larger than a thickness of another portion inside the cut-out. With the establishment of the thickness, the amount of the inward inclination of the lever portions derived from the differential shrinkage can be reduced since they are pulled outwardly due to the increased thickness of the outside portion, when the part is cooled.
Claims14
In a part molded of resinous matter, a corner structure comprising a transition from a generally planar base portion to a generally planar lever portion extending normal to the base portion and having a free end, said corner structure further having a continuous inner wall extending from the base portion along the lever portion and a continuous outer wall which extends from the base portion along the lever portion, and having a void disposed in the resinous matter between the inner wall and the outer wall which void extends along at least a portion of an intersection of the base portion and the lever portion, wherein the void separates the inner and outer walls at the intersection into inner and outer portions having thickness characteristics, and wherein the outer wall portion is thicker than the inner wall.
In a part molded of resinous matter, a corner structure comprising a transition at an apex from a generally planar base portion to a generally planar lever portion extending normal to the base portion and having a free end, said comer structure further having a generally continuous inner wall surface extending from the base portion along the lever portion and a continuous outer wall surface portion which extends from the base portion along the lever portion, and having a void in the resinous matter disposed in the inner wall surface extending toward the outer wall surface normal to the apex, wherein the base portion has upper and lower edges, and wherein the void is displaced from a centerline parallel to the upper and lower edges.
In a part molded of resinous matter, a pair of first and second corner structures, each comprising a transition from a generally planar base portion to a generally planar lever portion extending normal to the base portion and each lever portion having a free end, said corner structures further having a continuous inner wall extending from the base portion along the lever portions and a continuous outer wall portion which extends from the base portion along the lever portions, each of the first and second corner structures having a void in the resinous matter between the inner wall and the outer wall wherein the first and second voids extend along at least a portion of first and second intersections of the base portion and the first and second lever portions, respectively, wherein the each of the respective voids separates the inner and outer walls at the respective intersection into inner and outer portions having thickness characteristics, and wherein the outer wall portion is thicker than the inner wall.
Dependencies are inferred from the claim text.