초록 ▼

The base part and lid part of a container closure joined by a living hinge have positioning members which engage to maintain the lid in a full open position or a partially open position short of the full open position. The positioning members flex to allow the lid part to be initially closed from an

The base part and lid part of a container closure joined by a living hinge have positioning members which engage to maintain the lid in a full open position or a partially open position short of the full open position. The positioning members flex to allow the lid part to be initially closed from an as-molded position beyond the full open position. A latch guide cams a latch into engagement to assure closure of the lid part.

대표청구항 ▼

What is claimed is: 1. A container closure comprising: a base part having a dispensing opening and a lid part pivotally joined to the base part by a hinge along a hinge axis, the lid part being rotatable about the hinge axis to a closed position covering the dispensing opening, and a lid positioner

What is claimed is: 1. A container closure comprising: a base part having a dispensing opening and a lid part pivotally joined to the base part by a hinge along a hinge axis, the lid part being rotatable about the hinge axis to a closed position covering the dispensing opening, and a lid positioner comprising on the base part a first positioning member extending from the base part in a plane perpendicular to the hinge axis and offset laterally from the hinge axis and having adjacent a first free end, a first stop surface, formed by a first hook projecting generally toward the hinge axis, and on the lid part, a second positioning member extending from the lid part in the plane perpendicular to the hinge axis and offset laterally from and extending partially around the hinge axis and having adjacent a second free end, a second stop surface formed by a second hook projecting generally away from the hinge axis facing and engaging the first stop surface to set a selected full open position of the lid part, the second positioning member having an outer surface facing away from the hinge axis forming a contact surface which frictionally engages the first positioning member over an extended range of movement of the lid part between the closed position and the selected full open position to retain the lid part in any selected partially open position over the extended range of movement, wherein at least one of the first and second positioning members is resilient to bias the contact surface on the second positioning member into frictional contact with the first positioning member during movement of the lid part over the extended range of movement. 2. The container closure of claim 1, wherein the hinge is a living hinge joining the base part and lid part and the container closure is molded with the lid part in a molded position in which the lid part is open beyond the full open position and wherein the first hook and the second hook have beveled heads which allow the first and second positioning members to cam past one another for closing from the molded position. 3. The container closure of claim 2, wherein the lid part has a latch projecting from the lid part toward the base part and terminating in a latch hook projecting away from the hinge axis and which engages an undersurface of the base part, the base part having a guide member between the hinge axis and the undersurface camming the latch away from the hinge axis to assure engagement of the latch hook with the undersurface of the base member. 4. The container closure of claim 2, wherein the undersurface of the base part is accessible through an opening in the base part, and the guide member has a guide surface leading toward the undersurface that is engaged by the latch. 5. The container closure of claim 1, wherein the lid part includes a pocket into which the first positioning member extends when the lid part is in the closed position. 6. The container closure of claim 1, wherein the lid part has a latch projecting toward the base part and terminating in a latch hook projecting away from the hinge axis and which engages an undersurface of the base part, the base part having a guide member between the hinge axis and the undersurface camming the latch away from the hinge axis to assure engagement of the latch hook with the undersurface of the base member. 7. The container closure of claim 6, wherein the undersurface of the base part is accessible through a latch opening in the base part, and the guide member has a guide surface leading toward the undersurface that is engaged by the latch. 8. The container closure of claim 7, wherein the guide member is a tongue projecting in a plane of the base member into the latch opening from the hinge side of the latch opening, and the guide surface is an inclined surface on a free end of the tongue. 9. A container closure comprising: a base part having a dispensing opening and a lid part pivotally joined to the base part by a hinge along a hinge axis, the lid part being rotatable about the hinge axis to a closed position covering the dispensing opening, the lid part further having a latch projecting toward the base pa to latch the lid in the closed position, the base part having a latch open defining a latch edge facing the hinge axis and a flexible tongue cantilevered in a direction away from the hinge axis across the latch opening toward the latch edge a distance to create interference with the latch and guide the latch between the latch edge and the free end of the tongue and into engagement with the latch edge; and cooperating lid positioning members on said base and lid parts including a first positioning member extending from the base part in a plane perpendicular to the hinge axis and offset laterally from the hinge axis, a second positioning member extending from the lid part in the plane perpendicular to the hinge axis and offset laterally from and extending partially around the hinge axis, at least one of the first and second positioning members being resilient to bias a contact surface thereon into frictional contact with the other positioning member during movement of the lid part over and extended range of movement. 10. The container closure of claim 9, wherein the tongue has an inclined guide surface on a free end guiding the latch between the latch edge and the tongue. 11. The container closure of claim 9, wherein the latch includes a latch bead that engages under the base part. 12. The container closure of claim 11, wherein the bead is interrupted to form spaced apart bead sections. 13. The container closure of claim 11, wherein the bead projects toward the hinge axis and engages under the free end of the tongue. 14. The container closure of claim 11, wherein the bead projects away from the hinge axis and engages under the latch edge. 15. The container closure of claim 9, wherein the latch edge is substantially linear, the lid has a skirt projecting toward the base part and curved about the direction of projection and the latch projects from the skirt and is linear and extends substantially parallel to the linear latch edge. 16. The container closure of claim 9, wherein the latching edge is substantially linear wherein the lid has a skirt projecting toward the base part and curved about the direction of projection and the latch projects from the skirt the latch having a bead projecting away from the hinge axis and curved with the skirt, the bead engaging the base part under the latch edge.