摘要:
A container has a grounding portion that is free from sink and can prevent sink from occurring, so that it can secure its self-standing ability. The bottle-shaped container made of synthetic resin comprising a neck (3), a body (5) and a bottom (7), said bottom (7) including a grounding portion (81), said bottom (7) being formed at a center thereof with a central bulged section (77) protruding inwardly, said container showing a polygonal transversal cross section, characterized in that a peripheral bottom wall (79) is formed between an outer periphery of the central bulged section (77) and the grounding portion (81), said peripheral bottom wall (79) forming a step located below the central bulged section (77) and above the grounding portion (81), and said grounding portion (81) is provided with a recess (85) in a portion formed with an orientation magnification which is smaller than an orientation magnification with which a portion on and along a diagonal line (L) is formed.
摘要:
A bottle-shaped container made of synthetic resin including a body that has a left side (6A) and a right side (6B) which are symmetric to each other to a central axis line of the container, wherein each of the left and right sides (6A, 6B) is formed in a region (7, 8) including a center of the body, with a concaved portion (9, 10) for absorbing distortion due to changes of an internal pressure of the container, the concaved portions (9, 10) in the right and left sides are conformable in shape each other, and have same dimensions, each of said concaved portions (9, 10) includes an upper edge (14), a lower edge (15) and a bottom wall (13), said bottom wall (13) is in a form of shallowly concaved arc (11) in at least one direction of a longitudinal direction and a lateral direction of a circumferential wall of the body, each of the concaved portion (9, 10) is formed with protruded reinforcing portions (18, 19) at to an upper and lower portion thereof, and each of the reinforcing portions (18, 19) has a height (H) is gradually reduced from the upper or lower edge (14, 15) to the bottom wall (13), and a lateral width (W) gradually reduced from the upper or lower edge (14, 15) to the bottom wall (13), so that the reinforcing portion (18, 19) has a substantially triangular shape. Since the container according to the present invention has the structure as described above, the container can be held surely with safeness by holding the approximately central portion of the body of the container with fingers and a palm of a single hand from either the front side or the rear side even if it has a large content and a heavy weight.
摘要:
The blow molded preform 1' of a laminated wall structure comprises a bulging shoulder portion 4', which has a diameter that widens slightly in the downward direction; a bottom shell portion 7' for molding the bottom 7, which has been blow molded from the corresponding portion of parison P so as to have a widened and deformed shape; an inner overhang wall portion 3' in any position starting from the opposite side of the neck ring 3 and ending at the upper portion of the bulging shoulder portion 4', with the inner wall portion 3' having a diameter that widens in the downward direction; and/or a radially widened connecting portion 6' of an arced shape, which has a larger diameter than the barrel portion 5' so that the entire bottom including the bottom shell portion 7' takes a bulging spherical shape. With this configuration, no thick area is formed in the inner overhang wall portion on the opposite side of the neck ring 3 and/or in the pinch-off portion 8'.
摘要:
A blow formed preform (1') of stacked structure, wherein a diametrally diverging tube part (4') is diametrally diverged downward, a bottom shell part (7') is formed in the shape of a parison (P) formed by diametrally diverging the portion thereof formed at the bottom shell part (7') by blow forming, a diametrally increased step part (3') having a larger diameter lower part is formed on an inner peripheral surface portion at any position in an area ranging from near one position opposed to a neck ring (3) to the upper end part of the diametrally diverging tube part (4'), and the diameter of a shell tube part (5') is diametrally diverged downward to form a diametrally diverged lower end part (6') at the lower end part of the shell tube part (57) so as to form the entire lower end part including the bottom shell part (7') in a large dwelled shape, whereby, since a material is prevented from being built up to increase the dimensional accuracy of the overall wall thickness so as to provide a bottle body having the stacked structure without any visual deformation.
摘要:
A bottle body container made of synthetic resin and including a barrel having left- and right-hand side surfaces symmetrical with respect to the center axis of the container, characterized in that in each of the left- and right-hand side surfaces, regions (7, 8) including the middle region of the barrel are formed with strain-offsetting recesses (9, 10) accommodating changes in the internal pressure of the container, the recesses (9, 10) in the left- and right-hand side surfaces being similar in figure and having the same size, each of the recesses (9, 10) including an upper edge (14), a lower edge (15) and a bottom surface (13), the bottom surface (13) being substantially a gently concave surface at least either in the direction of the generating line of the peripheral wall or in the peripheral direction, each of the recesses being formed at its upper and lower portions with reinforcements (22, 23) for convex surfaces, the reinforcements (22, 23) having a width gradually decreasing from the upper and lower edges of the recess toward the bottom surface, whereby the reinforcements have a substantially triangular frontage shape. The above arrangement allows the fingers and palm of one hand to hold the container at substantially the middle of its barrel from the front or rear side, whereby the container, despite its large capacity and heavy weight, can be safely and firmly held.
摘要:
A synthetic resin bottle container of polygon in cross section capable of preventing shrinkage from occurring at a ground contact part to assure the self-standing capability thereof, comprising a neck part (3), a body part (5), and a bottom part (7) having the ground contact part (81), the bottom part (7) further comprising a center convex part (77) projected inward of the container formed at the center thereof, characterized in that a center convex part peripheral and bottom walls (79) having a step to occupy the lower part of the center convex part (77) and occupy the upper part of the ground contact part (81) is formed between the outside part of the center convex part (77) and the ground contact part (81) of the bottom part (7), and a recessed part (85) is provided in the ground contact part (81) at a portion where the recessed part can be formed with a smaller extension than that of a preform in a diagonal (L) direction.