JP5361923B2 - Caps and containers with caps - Google Patents

Description

  The present invention relates to a cap in which an elastic body connecting the cap body and the lid body is elastically deformed as the lid body is separated from the cap body, and to a container with a cap including the cap.

  2. Description of the Related Art Conventionally, as a cap including a cap body and a lid body that is attached to and detached from the cap body, a cap in which an elastic body that connects the cap body and the lid body elastically deforms as the lid body separates from the cap body is known. (For example, Patent Document 1). In such a cap, the cap body and the lid body include projecting pieces that project in the radial direction, and the projecting pieces are connected to each other via a hinge mechanism.

  When the lid is attached to the cap body, the elastic body is elastically deformed. On the other hand, when the lid is removed from the cap body, the elastic body is restored so that the lid body is a hinge mechanism. To rotate away from the cap body. Thereby, a cover body is hold | maintained in the position away from the cap main body.

Japanese Utility Model Publication No. 63-175047

  By the way, in the cap, for example, when the elastic body is restored, in order to increase the separation distance between the lid body and the cap body, the projection amount of the projecting piece provided on the cap body and the lid body is accordingly increased. It is necessary to design large. Thus, in order to increase the distance between the lid body and the cap body, inevitably, when the lid body is attached to the cap body, the protruding piece projects greatly and the volume of the cap increases. The above constraints arise.

  Therefore, in view of such circumstances, the present invention provides a cap when the lid is attached to the cap body, even though the distance between the lid and the cap body can be increased when the elastic body is restored. It is an object of the present invention to provide a cap and a container with a cap that can be flexibly designed such that the volume of the container can be suppressed.

A cap according to the present invention includes a cap body having a cylindrical base fixed to a container and a spout for pouring out the contents of the container, and a cylinder attached to and detached from the cap body to open and close the spout. And a belt-like elastic body connecting the cap body and the lid body, the elastic body is restored in a closed position where the lid body closes the spout and an open position where the lid body opens the spout In the cap configured to be elastically deformed as the lid body contacts and separates from the cap body between the closed position and the open position, the elastic body is connected to the cap body at one end. The first hinge portion is provided with a second hinge portion having an axis parallel to the axis of the first hinge portion at the other end connected to the lid, and the first hinge portion is The first shape in which the shape of the elastic body in the closed position and the open position is parallel to the axis The second hinge portion is arranged along the first surface so as to be plane-symmetrical, and the shape of the elastic body at the closed position and the open position is plane-symmetrical on the second plane parallel to the axis. In addition, when the lid body is located at the closed position and the open position, the surface including the respective axial centers of the first and second hinge portions and the first surface intersect with each other. When the angle is A, and when the lid is located at the closed position and the open position, the angle at which the second surface and the surface including the axes of the first and second hinge portions intersect is B. A> B.

  According to the cap of the present invention, since the elastic body is connected to the cap body via the first hinge portion, when the elastic body is rotated by the first hinge portion, the elastic body and the lid body are integrated. It comes in contact with the cap body. In addition, since the elastic body is connected to the lid body via the second hinge portion having an axis parallel to the first hinge portion, when the lid body is rotated by the second hinge portion, the lid body is the cap body. Get close to. Thereby, for example, when the lid is located at the closed position, the elastic body can be designed so as to be in a state of approaching the cap body.

  The elastic body is elastically deformed between the closed position where the lid closes the spout and the open position where the lid opens the spout as the lid contacts and separates from the cap body. As a result, the elastic body is elastically deformed as the lid body is detached from the cap body and separated, and when the elastic body is elastically deformed by a predetermined amount or more, the elastic body is restored by the elastic force and the lid body. Therefore, the lid body can be separated from the cap body by such elastic force.

  Furthermore, since the first hinge portion is disposed along a first surface (virtual surface that does not exist) parallel to the axis, the shape of the elastic body at the closed position and the open position is plane-symmetrical on the first surface. Become. In addition, since the second hinge portion is arranged along a second surface (virtual surface that does not exist) parallel to the axis, the shape of the elastic body at the closed position and the open position is plane-symmetric with respect to the second surface. It becomes.

Therefore, when the lid is located at the closed position and when the lid is located at the open position, the elastic body can be restored, that is, not elastically deformed. Thereby, for example, generally, the lid body is maintained at the closed position for a long time. Even if the lid body is maintained in such a state, the elastic body is plastically deformed and the elastic force (restoring force) of the elastic body is generated. It can suppress that it falls.
Furthermore, when the condition of A> B is satisfied, the lid can be set at a position further away from the spout when the lid is in the open position.

In the cap according to the present invention, each hinge portion may be formed so as to satisfy the following conditional expression (i) .
(i) 2A + 2B = 180 ° + Y
In addition, A is an angle at which the surface (virtual surface that does not exist) including each axial center of the first and second hinge portions intersects the first surface when the lid is located at the closed position and the open position. , B is an angle at which the surface including the axial centers of the first and second hinge portions intersects the second surface when the lid is located at the closed position and the open position, and Y is the angle at which the lid is When positioned at the closed position, an angle at which the axial direction of the base portion of the cap body and the axial direction of the lid intersect each other on a plane orthogonal to the axial center of each hinge portion.

According to the cap having such a configuration, by satisfying conditional expression (i), the axial direction of the base portion of the cap body and the axial direction of the lid body can be made parallel when the lid body is located at the open position. I can .

In the cap according to the present invention, each hinge portion may be formed so as to satisfy the following conditional expression (ii) .
(ii) X = 90 ° −Y / 2
X is an angle at which the first surface and the second surface intersect when the lid is located at the closed position and the open position, and Y is each angle when the lid is located at the closed position. An angle at which the axial direction of the base portion of the cap main body and the axial direction of the lid intersect each other in a plane orthogonal to the axis of the hinge portion.

According to the cap having such a configuration, by satisfying conditional expression (ii) , the axial direction of the base of the cap body and the axial direction of the lid can be made parallel when the lid is located at the open position. it can.

  Further, in the cap according to the present invention, the elastic body promotes elastic deformation so as to expand and contract in the longitudinal direction as the lid body contacts and separates from the cap body between the closed position and the open position. A deformation promoting part may be provided.

  According to the cap having such a configuration, since the deformation promoting portion is provided in the elastic body, the elastic body is elongated as the lid body contacts and separates from the cap body between the closed position and the open position. It is possible to promote elastic deformation so as to expand and contract in the direction. Thereby, the operation | movement which a cover body rotates in each hinge part can be performed smoothly.

  Moreover, the container with a cap which concerns on this invention is equipped with the container which accommodates the content, and the said cap fixed to a container, It is characterized by the above-mentioned.

  As described above, according to the cap and the container with a cap according to the present invention, when the elastic body is restored, the lid body is attached to the cap body although the distance between the lid body and the cap body can be increased. In this case, there is an excellent effect that a flexible design can be performed such that an increase in the volume of the cap can be suppressed.

It is the whole perspective view seen from one side of the cap concerning one embodiment of the present invention, (a) is a state where a lid is located in a closed position, (b) is a state where a lid is located in an open position. Show. It is the whole perspective view seen from the other side of the cap concerning the embodiment, (a) shows the state where a lid is located in a closed position, and (b) shows the state where a lid is located in an open position. It is the whole cap front view which concerns on the embodiment, Comprising: (a) shows the state in which a cover body is located in a closed position, (b) shows the state in which a cover body is located in an open position. It is the whole longitudinal cross-sectional view of the cap which concerns on the same embodiment, Comprising: (a) shows the state in which a cover body is located in a closed position, (b) shows the state in which a cover body is located in an open position. It is a principal part perspective view of the cap which concerns on the same embodiment, Comprising: (a) And (b) is a state in which a cover body is located in a closed position, respectively (c) And (d) is a cover body in an open position, respectively. Indicates the state to be performed. It is a principal part perspective view of the cap which concerns on the same embodiment, Comprising: (a) And (b) is a state in which a cover body is located in a closed position, respectively (c) And (d) is a cover body in an open position, respectively. Indicates the state to be performed. It is a whole longitudinal cross-sectional view of the cap concerning the embodiment, Comprising: The figure explaining the position of a cover body on the basis of a cap main body is shown. It is a whole longitudinal cross-sectional view of the cap concerning the embodiment, Comprising: The figure explaining the position of a cap main body on the basis of a cover body is shown. It is a general view of the cap concerning other embodiments of the present invention, and (a) and (b) show perspective views, respectively. It is a general view of the cap which concerns on other embodiment of this invention, Comprising: (a) And (b) shows a perspective view, respectively. It is a general view of the cap which concerns on other embodiment of this invention, Comprising: (a) is the perspective view seen from one side, (b) shows the perspective view seen from the other side.

  Hereinafter, one embodiment of a cap and a container with a cap according to the present invention will be described with reference to FIGS.

  The container with a cap which concerns on this embodiment is provided with the container 1 which accommodates the content, and the cap 2 fixed to the container 1, as shown in FIGS. And a container with a cap accommodates gas, liquid, solid, or a mixture thereof. In addition, in this embodiment, the container 1 and the cap 2 are comprised by another member.

  The container 1 includes a fixing portion 11 that is fixed to the cap 2. The container 1 includes an opening 12 at the end of the fixed portion 11. In the present embodiment, the container 1 is formed of a resin (for example, PET).

  The fixed portion 11 is formed in a cylindrical shape, and includes a male screw portion 111 that is screwed with the cap 2 on the outer peripheral portion. Further, the fixing part 11 is disposed at the end of the container 1.

  The cap 2 includes a cap body 3 that is fixed to the container 1, a cylindrical lid body 4 that is attached to and detached from the cap body 3, and a belt-like elastic body 5 that connects the cap body 3 and the lid body 4. . In the present embodiment, the cap 2 is integrally formed of resin (for example, plastic) by a manufacturing method such as injection molding.

  The cap body 3 includes a cylindrical base portion 31 that is fixed to the fixing portion 11 of the container 1. The cap body 3 includes a nozzle portion 32 that protrudes from the base portion 31.

  The base 31 is formed in a cylindrical shape. And the base 31 is provided with the internal thread part 311 screwed together with the external thread part 111 of the container 1 in an inner peripheral part.

  The nozzle portion 32 is formed in a cylindrical shape and includes a spout 321 for pouring out the contents stored in the container 1 at the tip. And the nozzle part 32 is protrudingly provided so that an axial direction may incline and cross | intersect the axial direction of the base 31. FIG.

  The lid body 4 includes a lid body portion 41 formed in a cylindrical shape with one end portion closed, and is attached to and detached from the cap body 3 so that the spout port 321 is opened and closed by the lid body portion 41. It is configured. In addition, the lid body 4 includes a sealing portion 42 that protrudes from the lid main body portion 41 so as to seal the spout 321 by contacting the tip end portion of the nozzle portion 32.

  The lid 4 is attached to the cap body 3 and closes the spout 321 so that the axial direction is parallel to the axial direction of the nozzle portion 32, in other words, the axial direction is the axial direction of the base portion 31. And are arranged so as to intersect with each other. Further, the lid 4 is in a position where the elastic body 5 is restored (not elastically deformed), and in an open position where the lid 4 is opened from the cap body 3 to open the spout 321, the axial direction is the axial direction of the base 31. Are arranged in parallel with each other.

  The elastic body 5 includes a first hinge portion 51 at one end connected to the cap body 3 and an axis of the first hinge portion 51 at the other end connected to the lid body 4. (A virtual axis, hereinafter also referred to as “first axis”) 51 a second hinge portion 52 having an axis 52 (a virtual axis, hereinafter also referred to as “second axis”) parallel to 51 a. Is provided. Furthermore, the elastic body 5 includes deformation promoting portions 53 and 53 that promote elastic deformation so as to expand and contract in the longitudinal direction.

  The elastic body 5 has a shape curved in the width direction at the closed position. Specifically, the elastic body 5 has a curved shape so that the inner surface (one surface) 54 side is concave in the closed position, in other words, the outer surface (other surface) 55 side is convex. doing. The elastic body 5 is configured to be restored at the closed position, that is, not elastically deformed.

  The elastic body 5 has a shape curved in the width direction at the open position. Specifically, the elastic body 5 has a curved shape in the open position so that the inner surface 54 side is convex, in other words, the outer surface 55 side is concave.

  The elastic body 5 is configured to be elastically deformed as the lid body 4 contacts and separates from the cap body 3 between the closed position and the open position. Specifically, as the lid body 4 moves away from the closed position or the open position, the elastic body 5 is elastically deformed so that the curvature of the curved shape in the width direction is gradually increased. The elastic body 5 is elastically deformed so that the curvature of the curved shape in the width direction gradually decreases as it approaches the closed position or the open position (from the intermediate position between the closed position and the open position).

  The first hinge portion 51 is formed by reducing the thickness of one end portion of the elastic body 5. The first hinge portion 51 is connected to the curved outer peripheral portion of the base portion 31 of the cap body 3. Further, the first hinge portion 51 is connected to an end portion in the axial direction of the base portion 31 (an end portion on the nozzle portion 32 side).

  Moreover, the 1st hinge part 51 is formed in circular arc shape. More specifically, the first hinge portion 51 is configured so that the shape of the elastic body 5 at the closed position and the open position is symmetrical with respect to a first surface (virtual virtual surface) E parallel to the first axis 51a. , Arranged along the first surface E. In the figure, reference numeral E1 indicates a first surface when the lid body 4 is positioned at the closed position, and reference numeral E2 indicates a first surface when the lid body 4 is positioned at the open position. E simply indicates the first surface regardless of the position or the like.

  The second hinge portion 52 is formed by reducing the thickness of the end portion on the other side of the elastic body 5. The second hinge portion 52 is connected to the curved outer peripheral portion of the lid main body portion 41 of the lid body 4. Further, the second hinge portion 52 is connected to one end portion (end portion on the closed side) in the axial direction of the lid main body portion 41.

  The second hinge part 52 is formed in an arc shape. Specifically, the second hinge portion 52 is configured so that the shape of the elastic body 5 at the closed position and the open position is symmetrical with respect to a second surface (non-existing virtual surface) F parallel to the second axis 52a. , Arranged along the second surface F. In the figure, reference numeral F1 indicates a second surface when the lid body 4 is positioned at the closed position, and reference numeral F2 indicates a second surface when the lid body 4 is positioned at the open position. F simply indicates the second surface regardless of the position or the like.

  A pair of deformation promoting portions 53, 53 are provided and are arranged on both side portions of the elastic body 5 in the width direction. And each deformation | transformation promotion part 53 is arrange | positioned in the middle part of the longitudinal direction of the elastic body 5. FIG. Specifically, each deformation promoting portion 53 is disposed closer to the cap body 3 (first hinge portion 51) in the longitudinal direction of the elastic body 5.

  Each deformation promoting portion 53 is formed in a curved concave shape (or convex shape) and is configured to be extendable and contractable in the longitudinal direction of the elastic body 5. Specifically, each deformation promoting portion 53 is formed in a concave shape on the outer surface 55 side, in other words, a convex shape on the inner surface side 54 side, and the concave shape (convex shape) is elongated by elastically deforming into a flat shape. Then, it is reduced by restoring from flat to concave (convex).

  Thereby, as the lid body 4 comes into contact with and separates from the cap body 3, both side portions in the width direction of the elastic body 5 expand and contract in the longitudinal direction, and the center portion in the width direction of the elastic body 5 expands and contracts in the longitudinal direction. Do not (or hardly stretch). Therefore, in the present embodiment, the axial centers 51 a and 52 a of the hinge portions 51 and 52 exist at positions passing through the center portions 511 and 521 in the width direction of the hinge portions 51 and 52.

  Here, regarding the positional relationship between the axial centers 51a and 52a of the hinge portions 51 and 52 and the surfaces E and F along which the hinge portions 51 and 52 are arranged, referring to FIGS. explain. 7 shows the positional relationship of the lid body 4 with the position of the cap body 3 being constant, and FIG. 8 shows the positional relationship of the cap body 3 with the position of the lid body 4 being constant.

  By arranging the first hinge portion 51 along the first surface E, the shape of the elastic body 5 at the closed position and the open position is symmetrical with respect to the first surface E. Therefore, when the surface (virtual surface that does not exist) including both the first axis 51a of the first hinge portion 51 and the second axis 52a of the second hinge portion 52 is defined as the third surface G, FIG. As described above, when the lid body 4 is located at the closed position, the angle at which the first surface E1 and the third surface G intersect each other, and when the lid body 4 is located at the open position, the first surface E2. And the third surface G intersect with each other at an equal angle. Such an angle is assumed to be A (°).

  In addition, since the second hinge portion 52 is disposed along the second surface F, the shape of the elastic body 5 at the closed position and the open position is plane-symmetric with respect to the second surface F. Therefore, as shown in FIG. 8, when the lid 4 is located at the closed position, the angle at which the second surface F1 and the third surface G intersect and when the lid 4 is located at the open position. The angle at which the second surface F2 and the third surface G intersect is equal. Such an angle is defined as B (°).

When the lid 4 is located at the closed position, the axial direction L of the base 31 of the cap body 3 and the axial direction M of the lid 4 on the plane orthogonal to the axial centers 51a and 52a of the hinge portions 51 and 52 If the angle at which Y intersects is Y (°), the axial direction L of the base 31 of the cap body 3 and the axial direction M of the lid 4 are parallel when the lid 4 is located at the open position. The following formula is satisfied.
2A + 2B = 180 ° + Y

Further, when the lid 4 is located at the closed position, the angle at which the first surface E1 and the second surface F1 intersect with each other, and when the lid 4 is located at the open position, The angle at which the second surface F2 intersects is equal. If the intersecting angle is X (°), the axial direction L of the base 31 of the cap body 3 and the axial direction M of the lid 4 are parallel when the lid 4 is located at the open position. Therefore, the following formula is satisfied.
X = 90 ° -Y / 2

Furthermore, when the lid body 4 is located at the open position, the following formula is satisfied in order to set the lid body 4 at a position further away from the spout 321.
A> B

  The configurations of the cap-equipped container and the cap 2 according to the present embodiment are as described above. Next, the operation of the cap-equipped container and the cap 2 according to the present embodiment will be described.

  First, when the lid 4 is located at the closed position, the elastic body 5 is curved in the width direction so that the inner surface 54 side is concave (the outer surface 55 side is convex) without elastic deformation. It has a shape. Then, the lid body 4 is removed from the cap body 3, and the lid body 4 and the elastic body 5 are rotated via the hinge portions 51 and 52 so that the lid body 4 is separated from the cap body 3.

  Then, as the lid body 4 is separated from the cap body 3, the elastic body 5 is elastically deformed so as to gradually become flat from the concavely curved shape on the inner surface 54 side in the width direction, while in the longitudinal direction. , Each deformation promoting portion 53 is elastically deformed so as to gradually become flat from the concave shape, so that both side portions in the width direction are elastically deformed.

  When the lid 4 is located at an intermediate position between the closed position and the open position, the elastic body 5 is elastically deformed so as to be flat in the width direction, and each deformation promoting portion 53 is formed in the longitudinal direction. It is elastically deformed to be flat. Further, when the lid body 4 is moved away from the cap body 3, the elastic body 5 is restored by the elastic force, and the lid body 4 is urged by the elastic force, so that the lid body 4 is displaced to the open position.

  Specifically, the elastic body 5 is elastically deformed (restored) so that the outer surface side 55 is curved in a concave shape from a flat shape in the width direction, while each deformation promoting portion 53 is in the longitudinal direction. By restoring from a flat shape to a concave shape, elastic deformation (restoration) is performed so that both side portions in the width direction are reduced. And the cover body 4 is hold | maintained in an open position.

  As described above, according to the cap-equipped container and the cap 2 according to the present embodiment, the elastic body 5 is connected to the cap body 3 via the first hinge portion 51 and is parallel to the first axis 51a. The elastic body 5 is connected to the lid body 4 through a second hinge portion 52 having a biaxial center 52a. Accordingly, when the lid body 4 is rotated by the hinge portions 51 and 52, the lid body 4 can be brought into contact with and separated from the cap body 3.

  Therefore, the elastic body 5 is disposed close to the cap body 3 when the lid body 4 is located at the closed position. As a result, when the elastic body 5 is restored, the distance between the lid body 4 and the cap body 3 can be increased, but when the lid body 4 is attached to the cap body 3, the volume of the cap 2 is increased. It can suppress becoming large.

  Further, according to the cap-equipped container and the cap 2 according to the present embodiment, the elastic body 5 is elastically deformed as the lid body 4 contacts and separates from the cap body 3 between the closed position and the open position. Thereby, as the lid body 4 is detached from the cap body 3 and separated, the elastic body 5 is elastically deformed, and when the elastic body 5 is elastically deformed by a predetermined amount or more, the elastic body 5 is elastically deformed. Since the lid 4 is restored and urged, the lid 5 can be separated from the cap body 3 by such elastic force.

  In addition, according to the cap-equipped container and the cap 2 according to the present embodiment, the first hinge portion 51 is disposed along the first surface E parallel to the first axis 51a. The shape of the elastic body 5 is plane-symmetric with respect to the first plane E. In addition, since the second hinge portion 52 is disposed along the second surface F parallel to the second axis 52a, the shape of the elastic body 5 at the closed position and the open position is the second surface F. It becomes symmetric.

  Therefore, when the lid body 4 is located at the closed position and when the lid body 4 is located at the open position, the elastic body 5 can be restored, that is, not elastically deformed. Thereby, for example, generally, the lid 4 is maintained at the closed position for a long time, but even if the lid 4 is maintained in this state, the elastic body 5 is plastically deformed and the elastic force (restoration) of the elastic body 5 is restored. Can be suppressed.

  Further, according to the cap-equipped container and the cap 2 according to the present embodiment, the deformation promoting portions 53 and 53 are provided on both side portions in the width direction of the elastic body 5. Thereby, it can accelerate | stimulate that the elastic body 5 elastically deforms so that it may expand-contract in a longitudinal direction, when the cover body 4 contacts / separates to the cap main body 3 between a closed position and an open position.

  Therefore, the axial centers 51 a and 52 a of the hinge portions 51 and 52 can be stably set at positions passing through the central portions 511 and 521 in the width direction of the hinge portions 51 and 52. As a result, the elastic body 5 can smoothly perform the operation of rotating at the first hinge portion 51 and the second hinge portion 52.

  In addition, the container with a cap and cap which concern on this invention are not limited to above-described embodiment, Of course, a various change can be added in the range which does not deviate from the summary of this invention. Moreover, it is needless to say that configurations, methods, and the like according to various modifications described below may be arbitrarily selected and employed in the configurations, methods, and the like according to the above-described embodiments.

  For example, in the container with a cap and the cap 2 according to the above embodiment, the configuration in which the first hinge portion 51 is connected to the end portion in the axial direction of the base portion 31 (the end portion on the nozzle portion 32 side) has been described. It is not limited to such a configuration. Specifically, the first hinge portion 51 may be connected to the end portion on the container 1 side, and is connected to a midway portion in the axial direction of the base portion 31 as shown in FIG. It may be configured.

  In the cap-equipped container and the cap 2 according to the above embodiment, the second hinge portion 52 is connected to one end portion (end portion on the closed side) in the axial direction of the lid main body portion 42. Although the configuration has been described, it is not limited to such a configuration. For example, the second hinge portion 52 may be connected to the other end, or may be connected to the midway portion of the lid main body portion 42 in the axial direction.

  Moreover, in the container with a cap and the cap 2 according to the above-described embodiment, the configuration in which the axial direction of the base portion 31 and the axial direction of the nozzle portion 32 intersect with each other at an inclination has been described, but the configuration is not limited thereto. For example, as shown in FIG. 9A, the nozzle portion 32 may be configured to protrude so that the axial direction is parallel to the axial direction of the base portion 31.

  Moreover, in the container with a cap and the cap 2 according to the above-described embodiment, the configuration in which the cap body 3 includes the nozzle portion 32 has been described. However, the configuration is not limited thereto. For example, the cap body 3 may not include the nozzle portion 32 but may include a spout 321 in which the end of the base portion 31 is opened.

  Moreover, in the container with a cap and the cap 2 according to the above-described embodiment, the configuration in which the first hinge portion 51 is connected to the curved outer peripheral portion of the cap body 3 and formed in an arc shape has been described. Not limited to. For example, the 1st hinge part 51 may be the structure formed in square shape (refracted shape) by connecting with the said corner | angular part of the cap main body 3 which has a corner | angular part.

  Moreover, in the container with a cap and the cap 2 according to the above-described embodiment, the configuration in which the second hinge portion 52 is connected to the curved outer peripheral portion of the lid body 4 and formed in an arc shape has been described. Not limited to. For example, the 2nd hinge part 52 may be the structure formed in square shape (refracted shape) by connecting with the said corner | angular part of the cover body 4 which has a corner | angular part.

  Moreover, in the container with a cap and the cap 2 according to the above-described embodiment, the configuration in which the concave (convex) deformation promoting portions 53 and 53 are disposed on both sides in the width direction of the elastic body 5 has been described. It is not limited to the configuration. For example, the deformation promoting portion 53 may be formed in a thin shape or formed of a material that is easily elastically deformed, or may be disposed in the center portion in the width direction. Such a specific example will be described with reference to FIG. 9B and FIG.

  First, the deformation promoting portion 53 shown in FIG. 9B is formed in a concavo-convex shape, and is disposed at the central portion in the width direction of the elastic body 5, and is extended by elastic deformation from the concavo-convex shape to a flat shape. Then, it is reduced by restoring from flat to uneven. According to such a configuration, since the central portion in the width direction of the elastic body 5 expands and contracts in the longitudinal direction, both side portions in the width direction of the elastic body 5 do not expand and contract in the longitudinal direction. 51a, 52a exists in the position which passes through the edge parts of the width direction of each hinge part 51,52.

  And the deformation | transformation promotion parts 53 and 53 shown to Fig.10 (a) are arrange | positioned at the both sides of the width direction of the elastic body 5 while being formed in thin shape, and are comprised so that expansion-contraction is possible in a longitudinal direction. . According to such a configuration, both side portions in the width direction of the elastic body 5 expand and contract in the longitudinal direction, and the center portion in the width direction of the elastic body 5 does not expand and contract in the longitudinal direction. 51a, 52a exists in the position which passes the center part of the width direction of each hinge part 51,52.

  And the deformation | transformation promotion part 53 shown in FIG.10 (b) is arrange | positioned in the center part of the width direction of the elastic body 5, while being formed in thin shape, and is comprised so that expansion-contraction is possible in a longitudinal direction. According to such a configuration, since the central portion in the width direction of the elastic body 5 expands and contracts in the longitudinal direction, both side portions in the width direction of the elastic body 5 do not expand and contract in the longitudinal direction. 51a, 52a exists in the position which passes through the edge parts of the width direction of each hinge part 51,52.

  Moreover, in the container with a cap and the cap 2 according to the above-described embodiment, the configuration in which one elastic body 5 is provided has been described, but the configuration is not limited thereto. For example, a plurality of elastic bodies 5 and 5 may be provided as shown in FIG.

  Moreover, the structure provided with the strip | belt-shaped coupling body 6 which connects the cap main body 3 and the cover body 4 may be sufficient as the container with a cap and cap 2 which concern on this invention as shown in FIG. Hereinafter, details of the configuration of the cap 2 shown in FIG. 11 will be described.

  The cap 2 shown in FIG. 11 includes a pair of elastic bodies 5 and 5 on both sides of the connecting body 6 in the width direction. And the deformation | transformation acceleration | stimulation parts 53 and 53 are arrange | positioned at the outer side part of the width direction of each elastic body 5, are extended | stretched by elastically deforming from uneven | corrugated shape (wave shape) to flat shape, and from flat shape to uneven shape ( Reduced by restoring to (wave shape).

  As a result, the outer side in the width direction of each elastic body 5 expands and contracts in the longitudinal direction, and the inner side in the width direction of the elastic body 5 does not expand and contract in the longitudinal direction. Exists at a position passing through the inner ends of the hinge portions 51 and 52 in the width direction. And a pair of elastic bodies 5 and 5 are comprised so that 1st axial center 51a, 51a may correspond (concentric) and 2nd axial center 52a, 52a may correspond (concentric). Yes.

  The coupling body 6 is formed with rigidity so as to prevent the lid body 4 from being deformed when coming into contact with or separating from the cap body 3. The connecting body 6 includes a first hinge mechanism 61 at one end connected to the cap body 3 and a second hinge mechanism 62 at the other end connected to the lid 4. Prepare.

  The first hinge mechanism 61 has an axis 61a that is concentric with the first axis 51a, and is linearly formed along the axis 61a. The second hinge mechanism 62 has an axial center 62a that is concentric with the second axial center 52a, and is linearly formed along the axial center 62a.

  Moreover, in the container with a cap and the cap 2 according to the above-described embodiment, the configuration in which the cap 2 is formed of resin (plastic) has been described, but the configuration is not limited thereto. For example, the cap 2 may be formed entirely of metal, or may be formed by combining a plurality of materials.

  Moreover, in the container with a cap which concerns on the said embodiment, although the container 1 demonstrated the structure formed with resin (PET), it is not restricted to such a structure. For example, the container 1 may be configured by glass or metal (aluminum or steel).

  Moreover, in the container with a cap which concerns on the said embodiment, although the container 1 and the cap 2 demonstrated the structure which is a separate member, it is not restricted to such a structure. For example, the structure by which the container 1 and the cap 2 are integrally molded may be sufficient.

  DESCRIPTION OF SYMBOLS 1 ... Container, 2 ... Cap, 3 ... Cap main body, 4 ... Cover body, 5 ... Elastic body, 31 ... Base part, 32 ... Nozzle part, 51 ... 1st hinge part, 51a ... (1st) of 1st hinge part Axis center, 52 ... second hinge part, 52a ... (second) axis of second hinge part, 53 ... deformation promotion part, 321 ... spout, E (E1, E2) ... first surface, F (F1) , F2) ... second surface

Claims (5)

A cap main body having a cylindrical base fixed to the container and a spout for pouring out the contents of the container, a cylindrical lid attached to and detached from the cap main body to open and close the spout, and a cap A belt-like elastic body connecting the main body and the lid,
The elastic body is restored in the closed position where the lid closes the spout and the open position where the lid opens the spout, and the lid contacts and separates from the cap body between the closed position and the open position. In a cap configured to be elastically deformed along with,
The elastic body includes a first hinge portion at one end connected to the cap body, and an axis parallel to the axis of the first hinge portion at the other end connected to the lid. A second hinge part having
The first hinge portion is disposed along the first surface so that the shape of the elastic body at the closed position and the open position is plane-symmetrical on the first surface parallel to the axis.
The second hinge portion is arranged along the second surface so that the shape of the elastic body at the closed position and the open position is plane-symmetric with the second surface parallel to the axis .
When the lid is located at the closed position and the open position, the angle at which the first surface and the plane including the axes of the first and second hinge portions intersect is A, and the lid is in the closed position and the open position. A cap that is characterized in that A> B, where B is the angle at which the surface including the axis of each of the first and second hinge portions intersects the second surface . Each cap part is a cap of Claim 1 formed so that the following conditional expression (i) may be satisfy | filled.
(i) 2A + 2B = 180 ° + Y
A is an angle at which the first surface and the surface including the axial centers of the first and second hinge portions intersect when the lid is in the closed position and the open position, and B is the lid. Is the angle at which the plane including the axes of the first and second hinge portions intersects the second plane when Y is positioned at the closed position and the open position, and Y is when the lid is positioned at the closed position In addition, the angle at which the axial direction of the base portion of the cap body and the axial direction of the lid intersect each other on a plane orthogonal to the axial center of each hinge portion. Each cap part is a cap of Claim 1 formed so that the following conditional expression (ii) may be satisfy | filled.
(ii) X = 90 ° −Y / 2
X is an angle at which the first surface and the second surface intersect when the lid is located at the closed position and the open position, and Y is each angle when the lid is located at the closed position. An angle at which the axial direction of the base portion of the cap main body and the axial direction of the lid intersect each other in a plane orthogonal to the axis of the hinge portion.   The elastic body includes a deformation promoting portion that promotes elastic deformation so as to expand and contract in the longitudinal direction as the lid contacts and separates from the cap body between the closed position and the open position. 4. The cap according to any one of 3 above.   A container with a cap comprising: a container for storing contents; and the cap according to any one of claims 1 to 4 fixed to the container.

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