JP2012126415A - Hinge structure of hinge cap - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hinge structure of a hinge cap allowing the hinge cap to be smoothly opened and closed by one touch operation with one hand, even if an ejection unit is standingly installed in a considerable height on a portion where the hinge cap is mounted.SOLUTION: The hinge structure of the hinge cap includes: a rotating and moving shaft 18 installed in a first support arm section 17 protruding outside from the hinge cap 15; and a bearing-movement guiding hole 20 formed in a second support arm section 19 protruding outside from an under-cap section 16. The rotating and moving shaft 18 has a long-hole-shaped cross-section. The bearing-movement guiding hole 20 includes: a beginning end side storing concave part 21 with a shaft close-contact surface 21a at a beginning side; a finishing side storing concave part 22 with a shaft close-contact surface 22a at a finishing side; and a curved moving guide 23 formed between these. The curved moving guide 23 includes: an inner guide surface 23a of a shape along a moving locus of an outer periphery 18a of the rotating and moving shaft 18; and an outer guide surface 23b of a shape along a moving locus of an outer periphery 18b of the rotating and moving shaft 18.

Description

  The present invention relates to a hinge structure of a hinge cap, and in particular, the hinge cap is pivotally connected to a cap attaching portion so that the upper surface of the cap attaching portion can be opened and closed by the cap. The present invention relates to a hinge structure of a hinge cap.

  For example, a cap that detachably covers the upper end of the container that stores liquid cosmetics, chemicals, foods, etc. is attached, and the container is not used by attaching the cap. In some cases, the liquid contents are prevented from spilling out, and the discharge device and the discharge nozzle provided at the upper end of the container are not damaged.

  On the other hand, if the cap is a separate member that is used detachably from the container, the cap is easily lost when it is removed from the container, so the upper end of the container remains connected without separating the cap from the container. A container with a cap that can be attached to a part is also generally used (see, for example, Patent Document 1 and Patent Document 2). In the container with a cap of Patent Document 1, the cap attached to the mouth part of the container filled with the content liquid can rotate the lid body through the thin hinge part with respect to the cap body attached to the mouth part. It is a connected hinge cap. In the container with a cap of Patent Document 2, the cap attached to the mouth part of the container body includes a pouring cap provided with a nozzle and an engaging protrusion having a circular cross-sectional shape on both sides of the mounting cylinder, and a slide on both sides. The moving plate part is formed by a lid body having a vertically long hole, and the engaging protrusion of the pouring cap is slidably fitted into the vertically long hole of the sliding plate part of the cover body. The lid is moved to the side of the pouring cap by rotating the lid in a state where the lid is pulled up with respect to the pouring cap while sliding the part along the vertically long hole. It can be opened without causing interference.

JP 2010-105707 A JP 2001-180722 A

  However, in the container with a cap disclosed in Patent Document 1, the lid is rotatably connected in a state of being fixed to the cap body via the thin hinge portion, and thus, for example, the content liquid is discharged to the upper end of the container. When a discharge device and a discharge nozzle are provided and these are standing at a considerable height from the cap body, the lid body easily collides with the discharge device and the discharge nozzle at the time of opening and closing by rotation. Therefore, it is difficult to use a hinge cap in such a container with a cap. Moreover, in the container with a cap of patent document 2, in the state which pulled up the lid | cover with respect to the extraction | pouring cap once, the lid | cover body is rotated centering on the engagement protrusion with the cross-sectional shape of the both sides of a extraction | pouring cap circular. The lid can be opened and closed without interfering with the nozzle, but the operator can lift and rotate the lid with the other hand while holding the mouth and neck of the container with one hand. For example, it is difficult to smoothly open and close the lid by a one-touch operation with one hand.

  The present invention can open and close the cap easily and smoothly, for example, by a one-touch operation with one hand, even when the discharge device and the discharge nozzle are erected at a considerable height on the adherend portion of the cap, for example. An object of the present invention is to provide a hinge structure of a hinge cap that can be made.

  The present invention is a hinge structure of a hinge cap in which a cap of a hinge cap is rotatably connected to a cap attaching portion, and an upper surface portion of the cap attaching portion is covered with the cap so as to be opened and closed. The hinge structure includes a rotational movement shaft provided on a first support arm projecting from either the cap or the cap attaching part, and a bearing movement formed on a second support arm projecting from the other. The rotational movement shaft has a non-circular cross-sectional shape, and the bearing movement guide hole is formed by the rotational movement shaft when the cap is attached to the cap attachment portion. A start-end-side receiving recess having a shaft-contact surface on the start-end side, which is stored in a state in which a part of the outer peripheral surface is in close contact, and the cap when the cap is most opened at a predetermined opening angle with respect to the cap attachment portion. rotation The moving shaft is housed in a state in which a part of the outer peripheral surface thereof is in close contact, and is disposed between a terminal-side receiving recess having a shaft-contacting surface on the terminal end side, and the terminal-side receiving recess and the start-side receiving recess. A curved movement guide portion extending in a curved shape, wherein the rotational movement axis extends from the start side accommodation recess to the end side accommodation recess along the curve movement guide portion. An inner guide surface having a shape along the movement trajectory of the outer periphery of the rotational movement shaft on the curvature center side of the curved shape when moving while rotating toward the curved shape, and on the opposite side to the curvature center side of the curved shape The object is achieved by providing a hinge structure of a hinge cap including an outer guide surface having a shape along a movement locus on the outer periphery of the rotational movement shaft.

  According to the hinge structure of the hinge cap of the present invention, for example, even when a discharge device or a discharge nozzle is erected at a considerable height on the attached portion of the cap, the cap is removed by one-touch operation with one hand, for example. It can be opened and closed easily and smoothly.

(A), (b) is a front view which shows the principal part in a cross section of the container with a cap by which a cap is opened and closed by the hinge structure of the hinge cap which concerns on preferable 1st Embodiment of this invention. (A) is the partial front view of the container with a cap which shows the principal part in a cross section explaining the structure of the hinge structure of the hinge cap which concerns on preferable 1st Embodiment of this invention, (b) is in a bearing movement guide hole. It is a schematic enlarged view of the A part of (a) explaining the locus of the rotational movement axis that moves while rotating. (A)-(d) is a partial front view of the container with a cap which shows the principal part in a cross section explaining the condition where a cap is opened and closed by the hinge structure of the hinge cap which concerns on preferable 1st Embodiment of this invention. . (A)-(d) is a partial front view of the container with a cap which shows the principal part with a cross section explaining the condition where a cap is opened and closed by the hinge structure of the hinge cap which concerns on preferable 2nd Embodiment of this invention. . (A)-(d) is a front view of the cap which shows the principal part with a cross section explaining the condition where a cap is opened and closed by the hinge structure of the hinge cap which concerns on preferable 3rd Embodiment of this invention. (A)-(d) is a partial front view of the container with a cap which shows the principal part in a cross section explaining the condition where a cap is opened and closed by the hinge structure of the hinge cap which concerns on preferable 4th Embodiment of this invention. . FIG. 6 is a schematic enlarged view of a portion B in (a) illustrating a locus of a rotational movement shaft that rotates while rotating in a bearing movement guide hole. (A)-(d) is a partial front view of the container with a cap which shows the principal part with a cross section explaining the condition where a cap is opened and closed by the hinge structure of the hinge cap which concerns on preferable 5th Embodiment of this invention. . FIG. 6 is a schematic enlarged view of part C in (a) for explaining the locus of a rotational movement axis that moves while rotating in a bearing movement guide hole.

  A hinge structure 10 of a hinge cap according to a first preferred embodiment of the present invention contains, for example, lotion as a content liquid and discharges the contained content liquid as shown in FIGS. 1 (a) and 1 (b), for example. In a cap-equipped container 13 in which a known pump-type discharge device 11 is attached to the mouth of the container body 12, a cap 15 constituting a hinge cap 14 that covers the upper portion of the discharge device 11 is attached to a lower cap body. 16 is adopted as a structure for connecting to 16 so as to be rotatable while moving the center of rotation.

  In the first embodiment, the hinge cap 14 is arranged concentrically on the outer side of the cylindrical guide wall 11a of the discharge device 11 and is fixedly mounted, and the cap lower body 16 is attached to the cap attachment portion. And a cap 15 as a cap upper body that is rotatably connected to the cap attaching portion 16. Further, the pump-type discharge device 11 is provided with a pressing head 11b having a nozzle portion so as to be slidable in the vertical direction guided by the cylindrical guide wall 11a. By pressing the pressing head 11b, the content liquid Can be discharged. On the other hand, since the pressing head 11b of the ejection device 11 protrudes upward at a considerable height from the cylindrical guide wall 11a and the cap lower body 16 when not pressed, in the state where the rotation center of the cap 15 is fixed. When the cap 15 is rotated, it is difficult to open and close the cap 15 because the peripheral portion of the cap 15 abuts against the upper end portion of the pressing head 11b.

  As described above, the hinge structure 10 of the hinge cap 10 according to the first embodiment has a predetermined trajectory even when the pressing head 11b of the discharge device 11 protrudes from the cap lower body 16 that is the cap attaching portion at a considerable height. The center of rotation of the cap 15 is moved along the center of the cap 15 so that the cap 15 can be opened and closed smoothly.

  In the hinge structure 10 of the hinge cap of the first embodiment, the cap 15 is rotatably connected to a cap lower body 16 serving as a cap attaching portion, and the upper surface portion of the cap lower body 16 is opened and closed by the cap 15. As shown in FIGS. 2 (a) and 2 (b), a rotational movement shaft provided on a first support arm portion 17 that protrudes radially outward from the cap 15, as shown in FIGS. 18 and a bearing movement guide hole 20 formed in the second support arm portion 19 projecting radially outward from the cap lower body 16.

  The rotational movement shaft 18 preferably has an oval (in this embodiment, oval) cross-sectional shape as a non-circular cross-sectional shape. When the cross-sectional shape of the rotational movement shaft 18 is elliptical, the cap 15 can be opened and closed smoothly. An example of an oval shape other than an ellipse is a capsule shape (or track circular shape for athletics) in which two opposing straight lines are connected to each other by an arc.

  When the cap 15 is attached to the cap lower body 16, the bearing movement guide hole 20 is accommodated in a state in which the rotational movement shaft 18 is in close contact with a part of the outer peripheral surface thereof. When the side housing recess 21 and the cap 15 are opened most with respect to the cap lower body 16 at a predetermined opening angle, the rotational movement shaft 18 is accommodated in a state in which a part of its outer peripheral surface is in close contact with the shaft on the terminal side. It comprises a terminal-side receiving recess 22 having a close contact surface 22a, and a bending movement guide portion 23 that is provided between the terminal-side receiving recess 22 and the start-end receiving recess 21 so as to extend in a curved shape.

  The curved movement guide portion 23 moves along the curved movement guide portion 23 while the rotational movement shaft 18 moves while rotating from the start-side accommodation recess 21 toward the termination-side accommodation recess 22. The inner guide surface 23a having a shape along the movement locus of the outer periphery (the innermost peripheral portion 18a) of the rotational movement shaft 18 and the outer periphery (the outermost outer periphery) of the rotational movement shaft 18 on the side opposite to the curvature center side of the curved shape. And an outer guide surface 23b having a shape along the movement locus of the portion 18b). Therefore, the bearing movement guide hole 20 is formed between the bearing and the rotation movement guide when the rotation movement shaft 18 moves along the curved movement guide portion 23 while rotating from the start side accommodation recess 21 toward the end side accommodation recess 22. Have a role.

  In the first embodiment, the cap lower body 16 constituting the hinge cap 14 is a cylindrical synthetic resin molded product as shown in FIGS. 1 (a), 1 (b) and 2 (a). The cap lower body 16 has an upper surface portion and a lower surface portion that are open surfaces. For example, the opening peripheral edge portion of the lower surface portion is an annular stepped portion between the cylindrical guide wall 11a of the discharge device 11 and the mounting skirt portion 11c. It is fixed in a state of being concentrically arranged outside the cylindrical guide wall 11a by joining or screwing to 11d. An inner ring member 16a is attached to the upper surface of the cap lower body 16 inside the peripheral edge of the opening, and the cap 15 is attached to the cap lower body 16 through the inner ring member 16a. Further, a second support arm portion 19 is integrally provided so as to protrude radially outward from the outer peripheral surface of the cap lower body 16, and a bearing movement guide hole 20 is formed in the second support arm portion 19.

  The cap 15 that constitutes the hinge cap 14 is a synthetic resin molded article having a cylindrical surface with a bottom surface having an open surface. The cap 15 can cover the upper surface portion of the cap lower body 16 so that it can be opened and closed by engaging the opening peripheral edge portion of the lower surface portion with the inner ring member 16a of the upper surface portion of the cap lower body 16. Further, a first support arm portion 17 is integrally provided so as to protrude radially outward from the outer peripheral surface of the cap 15. A finger hook collar 15a is provided on the outer peripheral surface of the cap 15 on the side opposite to the first support arm 17 in the radial direction. The finger hook collar 15a protrudes outward. 15 opening operations can be easily performed.

  In the first embodiment, the first support arm portion 17 includes a pair of support arm pieces 17a having the same shape and spaced apart in the circumferential direction of the outer peripheral surface of the cap 15, and these support arm pieces 17a. Is provided in a curved shape and extending obliquely downward from the outer peripheral surface of the lower portion of the cap 15. At the distal end portion of the first support arm portion 17, both ends are supported by the support arm pieces 17a on both sides, and a rotational movement shaft 18 having an elliptical cross-sectional shape is attached to a space portion between these support arm pieces 17a. ing.

  Further, in the first embodiment, the second support arm portion 19 has a thickness that can be inserted into the space between the pair of support arm pieces 17 a of the first support arm portion 17, and the cap lower body 16. Is provided so as to extend obliquely upward from the outer peripheral surface. By inserting the rotational movement shaft 18 attached to the spacing portion of the support arm piece 17a at the distal end portion of the first support arm portion 17 into the distal end portion of the second support arm portion 19 in which the bearing movement guide hole 20 is formed, The hinge structure 10 according to the first embodiment in which the rotational movement shaft 18 is movably disposed inside the bearing movement guide hole 20 is formed, and the cap 15 is rotated around the cap lower body 16 which is a cap attachment portion. It is linked movably.

  In the first embodiment, the outer peripheral surface of the bearing movement guide hole 20 of the second support arm 19 is partially cut away at the outer guide surface 23b side of the curved movement guide 23 to introduce the moving shaft. A notch for use 20a is formed. The notch 20a for introducing the moving shaft is cut out with a width slightly smaller than the width in the short axis direction of the rotary moving shaft 18 having an elliptical cross-sectional shape, and on both sides of the notch 20a for introducing the moving axis. The rotational movement shaft 18 can be introduced into the bearing movement guide hole 20 while elastically deforming the outer peripheral portion.

  In the first embodiment, the bearing movement guide hole 20 formed in the second support arm portion 19 is formed when the cap 15 is attached to the cap lower body 16 as shown in FIG. 3 (a)), the rotational movement shaft 18 is housed in a state in which a part of the outer peripheral surface thereof is in close contact, the start end-side receiving recess 21 having the shaft contact surface 21a on the start end side, and the cap 15 as the cap lower body. When the shaft 16 is opened most at a predetermined opening angle (see FIG. 3 (d)), the rotary moving shaft 18 is housed in a state in which a part of the outer peripheral surface thereof is in close contact with the shaft contact surface 22a on the end side. And a bending movement guide portion 23 that is provided between the termination side accommodation recess 22 and the start end side accommodation recess 21 so as to extend in a curved shape.

  In the first embodiment, the start-end-side receiving recess 21 is constituted by a hollow cross-sectional portion having a substantially half shape of the elliptical shape because the rotational movement shaft 18 has an elliptical cross-sectional shape. The arc-shaped portion along the lower right ellipse in FIG. 2B is the shaft contact surface 21a on the start end side. By this shaft contact surface 21 a, the rotational movement shaft 18 is regulated so as not to rotate while holding the position stored in the start-end-side accommodation recess 21.

  In the first embodiment, the terminal-side accommodation recess 22 is a portion that is accommodated after approximately 180 rotations while moving along the curved movement guide portion 23 from the state in which the rotational movement shaft 18 is accommodated in the start-side accommodation recess 21. It has become. The terminal-side receiving recess 22 is also configured by a hollow cross-sectional portion that is approximately half of the elliptical cross-sectional shape of the rotational movement shaft 18, and is an arc-shaped portion along the upper right ellipse in FIG. However, this is the end-side shaft contact surface 22a. With this shaft contact surface 22a, it is possible to restrict the rotational movement shaft 18 from rotating while maintaining the position housed in the terminal-side accommodation recess 22.

  The curved movement guide portion 23 that moves while rotating the rotational movement shaft 18 is configured so that the rotational movement shaft 18 moves from the start-side accommodation recess 21 toward the termination-side accommodation recess 22 or from the termination-side accommodation recess 22 to the start-end accommodation recess 21. When moving in the direction, the rotational movement shaft 18 is restricted so as to rotate only while moving along the bending movement guide part 23, and the center of rotation is not maintained in the middle of the bending movement guide part 23. A function to prevent rotation is provided. For this reason, the bending movement guide part 23 includes an inner guide surface 23a having a shape along the movement locus of the innermost peripheral part 18a of the rotational movement shaft 18 on the curvature center side of the bending shape of the bending movement guide part 23, and An outer guide surface 23b having a shape along the movement locus of the outermost peripheral portion 18b on the side opposite to the curvature center side of the curved shape of the curved movement guide portion 23 is provided.

  The shapes and trajectories of the start-side receiving recess 21, the end-side receiving recess 22, and the curved moving guide 23 are, for example, the shape of the cap 15 and the rotary moving shaft 18, and the cap 15 while moving the rotary moving shaft 18. After setting the movement locus and the like of the center position of the cap 15 and the rotation movement shaft 18 when rotating, the rotation movement axis 18 is rotated and moved along the movement locus of the set center position. The locus of the innermost peripheral portion 18a or the outermost peripheral portion 18b can be easily designed to have a predetermined shape or locus by plotting the locus on, for example, a drawing or a computer display of a CAD system.

  Then, the movement trajectory of the outer periphery of the rotational movement shaft 18 forming the shape of the curved movement guide portion 23 of the present embodiment is directed from the start-side accommodation recess 21 toward the termination-side accommodation recess 22 at first, as shown in FIG. It becomes a locus in the upper left direction (direction in which the outermost peripheral portion 18b approaches the pressing head 11b), and then in an upper right direction in FIG. 2B (in the direction in which the outermost outer peripheral portion 18b moves away from the pressing head 11b). Designed to. By designing in this way, the cap 15 can be rotated in a state in which the pressing head 11b is displaced without interfering with the pressing head 11b of the ejection device 11.

  And according to the hinge structure 10 of the hinge cap of the present embodiment having the above-described configuration, for example, the pressing head 11b of the ejection device 11 is erected at a considerable height from the cap lower body 16 to which the cap 15 is attached. However, the cap 15 can be opened and closed easily and smoothly, for example, by a one-touch operation with one hand.

  That is, according to this embodiment, the hinge structure 10 of the hinge cap has the rotational movement shaft 18 preferably having an elliptical cross-sectional shape as a non-circular cross-sectional shape, and the bearing movement guide hole 20 is located on the start end side. The first end-side receiving recess 21 provided with the shaft close contact surface 21a, the end end receiving recess 22 provided with the shaft close contact surface 22a on the end side, and the curved shape interposed between the end end receiving recess 22 and the start end receiving recess 21 The inner guide surface 23a along the movement trajectory of the innermost peripheral portion 18a of the rotational movement shaft 18 and the outer guide surface 23b along the movement trajectory of the outermost peripheral portion 18b of the rotational movement shaft 18 are provided. 3A to 3D, the cap 15 is attached to the cap lower body 16, and the cap 15 is fixed to the cap lower body 16 in a predetermined manner. Release The cap 15 is moved by rotating the rotational movement shaft 18 along the curved movement guide portion 23 from the start-side accommodation recess 21 toward the end-side accommodation recess 22, for example, between the most open state and the most open state. It is possible to rotate the press head 11b without interfering with the press head 11b of the ejection device 11. This makes it possible to open and close the cap 15 easily and smoothly, for example, by a one-touch operation with one hand.

  Further, by combining the rotational movement shaft 18 having a non-circular cross-sectional shape and the curved movement guide portion 23, unlike the technique disclosed in Patent Document 2, the cap 15 of the present embodiment is inadvertently caused by its own weight. The fact that there is no sliding movement also makes it possible to open and close the cap 15 easily and smoothly by a one-touch operation with one hand.

  4 (a) to 4 (d) are partial front views of a container with a cap for explaining a situation in which the cap 15 'is opened and closed by the hinge structure 30 of the hinge cap according to the second preferred embodiment of the present invention. In the second embodiment, the pressing head 11b ′ of the pump-type discharge device 11 ′ protrudes above the cap lower body 16 ′ at a height higher than the pressing head 11b of the first embodiment. Accordingly, the curved movement guide portion 23 ′ of the bearing movement guide hole 20 ′ is formed to be longer than the curved movement guide portion 23 of the first embodiment.

  Also with the hinge structure 30 of the hinge cap of the second embodiment, the rotational movement shaft 18 ′ is rotated along the curved movement guide portion 23 ′ from the start side accommodation recess 21 ′ toward the end side accommodation recess 22 ′, for example. By moving the cap 15 ′, the cap 15 ′ can be rotated while the pressure head 11b ′ is displaced without interfering with the pressure head 11b ′ of the ejection device 11 ′. The same effects as those of the hinge structure 10 are obtained.

  5A to 5D are front views of the hinge cap 42 in which the cap 44 is opened and closed by the hinge structure 40 of the hinge cap according to the preferred third embodiment of the present invention. In the third embodiment, the hinge cap 42 includes a cylindrical cap lower body 43 and a cap-shaped cylindrical cap 44. The cap 44 is hinged to the cap lower body 43 serving as a cap attaching portion. The structure 40 is rotatably connected via the structure 40. In the third embodiment, the first support arm portion 46 including the rotational movement shaft 45 is provided to protrude radially inward from the inner side surface of the cap lower body 43, and includes a second bearing movement guide hole 47. A support arm portion 48 is provided so as to protrude radially inward from the inner side surface of the cap 44.

  Also with the hinge structure 40 of the hinge cap of the third embodiment, the rotational movement shaft 45 is rotated along the curved movement guide portion 47c from, for example, the start side accommodation recess 47a of the bearing movement guide hole 47 toward the end side accommodation recess 47b. By moving the cap 44, the cap 44 can be rotated in a state where the cap 44 is displaced without interfering with a member or a part protruding from the inside of the hinge cap 42. The same effect as the hinge structure 10 of 1 embodiment is exhibited.

  In the third embodiment, the first support arm portion 46 and the second support arm portion 48 that form the hinge structure 40 are provided so as to protrude inside the cap 44 or the cap lower body 43, and the hinge cap 42. Since the hinge structure 40 does not protrude on the outer side of the container, the appearance of the hinge cap 42 is simplified, and it is possible to improve the aesthetics of the cap-equipped container to which the hinge cap 42 is attached and to improve the design. It becomes possible to make the container with a cap compact.

  FIGS. 6A to 6D are partial front views of a container with a cap for explaining a situation in which the cap 51 is opened and closed by the hinge structure 50 of the hinge cap according to the preferred fourth embodiment of the present invention. In the fourth embodiment, the hinge cap 52 has the same configuration as the hinge cap 14 of the first embodiment except for the rotational movement shaft 53 and the bearing movement guide hole 54. That is, in the fourth embodiment, as shown in FIG. 7, the rotational movement shaft 53 provided on the first support arm portion 55 forming the hinge structure 50 has a rectangular cross-sectional shape as a non-circular cross-sectional shape. have. The bearing movement guide hole 54 provided in the second support arm portion 56 forming the hinge structure 50 includes a start-end-side receiving recess 57 having a shaft contact surface 57a including a right-angle portion on the start-end side, and a right-angle portion on the end-side. It comprises a terminal-side receiving recess 58 having a shaft contact surface 58a, and a bending movement guide portion 59 provided between the terminal-side storing recess 58 and the start-end receiving recess 57 and extending in a curved shape.

  Also by the hinge structure 50 of the hinge cap of the fourth embodiment, the rotational movement shaft 53 is rotated along the curved movement guide portion 59 from the start side accommodation recess 57 to the end side accommodation recess 58 of the bearing movement guide hole 54, for example. By moving the cap 51 while moving the cap 51, the cap 51 can be rotated without interfering with the press head 11b of the ejection device 11 in a state where the press head 11b is displaced, and thereby the hinge of the first embodiment. The same effect as the structure 10 is exhibited.

  FIGS. 8A to 8D are partial front views of a container with a cap for explaining a situation in which the cap 61 is opened and closed by the hinge structure 60 of the hinge cap according to the fifth preferred embodiment of the present invention. In the fifth embodiment, the hinge cap 62 has the same configuration as the hinge cap 14 of the first embodiment except for the rotational movement shaft 63 and the bearing movement guide hole 64. That is, in the fifth embodiment, as shown in FIG. 9, the rotational movement shaft 63 provided on the first support arm portion 65 forming the hinge structure 60 has a triangular cross-sectional shape as a non-circular cross-sectional shape. have. The bearing movement guide hole 64 provided in the second support arm portion 66 forming the hinge structure 60 has a start-end-side receiving recess 67 having a shaft contact surface 67a including a flat end-surface portion on the start-end side, and a corner portion on the end-side. A terminal-side receiving recess 68 having a shaft contact surface 68a, and a bending movement guide portion 69 provided between the terminal-side receiving recess 68 and the start-side receiving recess 67 and extending in a curved shape. .

  Also by the hinge structure 60 of the hinge cap of the fifth embodiment, the rotational movement shaft 63 is rotated along the curved movement guide portion 69 from the start side accommodation recess 67 to the end side accommodation recess 68 of the bearing movement guide hole 64, for example. By moving the cap 61, the cap 61 can be rotated without the interference with the pressing head 11 b of the ejection device 11, and the hinge 61 according to the first embodiment can be rotated. The same effect as the structure 10 is exhibited.

  The hinge cap having the hinge structure of the present invention can be manufactured by known injection molding, cutting, stereolithography, or the like.

  The present invention is not limited to the above-described embodiments, and various modifications can be made. For example, the cap attaching portion to which the cap is engaged is not necessarily a cap lower body constituting a hinge cap together with the cap, and may be an upper end portion of the container itself provided with the discharge device. Further, the discharge device and the discharge nozzle do not have to protrude from the upper surface portion of the cap attaching portion. Furthermore, a container with a cap in which the hinge structure of the present invention is adopted does not necessarily contain a lotion as a content liquid, and is a container that contains other cosmetics, chemicals, foods, and the like. May be.

10, 30, 40, 50, 60 Hinge structure of hinge cap 11, 11 ′ Discharge device 11b, 11b ′ Press head 13 Container with cap 14, 42, 52, 62 Hinge cap 15, 15 ′, 44, 51, 61 Cap 16, 16 ', 43 Cap lower body (cap attaching part)
17, 46, 55, 65 First support arm portion 18, 45, 53, 63 Rotation shaft 18a The outer periphery (innermost periphery) of the rotation shaft on the curvature center side
18b Outer circumference (outermost circumference part) of the rotational movement shaft on the side opposite to the curvature center side
19, 48, 56, 66 Second support arm portions 20, 20 ', 47, 54, 64 Bearing movement guide holes 21, 21', 47a, 57, 67 Start-end side receiving recesses 21a, 57a, 67a Shaft contact surface 22, 22 ', 47b, 58, 68 Terminal side accommodation recesses 22a, 58a, 68a Shaft contact surfaces 23, 47c, 59, 69 Curved moving guide portion 23a Inner guide surface 23b Outer guide surface

Claims (5)

A hinge structure of a hinge cap, wherein a cap of the hinge cap is rotatably connected to a cap attaching portion, and the upper surface portion of the cap attaching portion is covered with the cap so as to be opened and closed.
The hinge structure includes a rotational movement shaft provided on a first support arm projecting from either the cap or the cap attaching part, and a bearing movement guide formed on a second support arm projecting from the other. With holes,
The rotational movement axis has a non-circular cross-sectional shape;
The bearing movement guide hole is provided with a shaft contact surface on the start end side in which the rotational movement shaft is stored in a state in which a part of the outer peripheral surface thereof is in close contact when the cap is attached to the cap attaching portion. A side receiving recess and a shaft on the terminal end side, in which the rotational movement shaft is housed in a state in which a part of its outer peripheral surface is in close contact when the cap is opened most at a predetermined opening angle with respect to the cap attaching portion. A terminal-side receiving recess provided with a close-contact surface, and a bending movement guide provided to extend in a curved shape interposed between the terminal-side storing recess and the start-end-side receiving recess,
The curved movement guide portion is located on the curvature center side of the curved shape when the rotational movement shaft moves while rotating from the start side accommodation recess toward the end side accommodation recess along the curve movement guide portion. An inner guide surface having a shape along a movement locus on the outer periphery of the rotational movement shaft, and an outer guide surface having a shape along the movement locus on the outer periphery of the rotation movement shaft on the opposite side to the curvature center side of the curved shape. And hinge structure of the hinge cap.   The hinge structure of the hinge cap according to claim 1, wherein the rotational movement shaft has an oval cross-sectional shape.   The hinge structure of the hinge cap according to claim 1 or 2, wherein the first support arm portion and the second support arm portion are provided so as to protrude inside the cap or the cap attaching portion.   The hinge structure of a hinge cap according to any one of claims 1 to 3, wherein the cap attaching portion is a cap lower body attached to an upper end portion of a container provided with a discharge device.   The hinge structure of a hinge cap according to any one of claims 1 to 3, wherein the cap attaching portion is an upper end portion of a container provided with a discharge device.

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