JP2011098761A - Vessel for carrying drink and food - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To lower a height and the like from a plug member of a side circumference portion of a plug cap member constituting a side circumference of a plug body while avoiding a decrease in operability of unfastening the plug cap member from the plug member by turning the plug cap member of a vessel for carrying drink and food. <P>SOLUTION: The plug body 2 can make an inner space 3 in the vessel 1 by fastening the plug member 6 having a first screw tube 4 and a bottom wall 5 to the plug cap member 9 having a second screw tube 7 and a top wall 8. The plug body 2 is attachable to and removable from a vessel side circumference cover 10 of the plug member 6 by the screws 11 and 12 of the vessel 1. When protrusive surfaces 23a, 28 and the like engage with each other at a plurality of positions at the same time, the limit position of the fastening rotations of the plug cap member 9 and the plug member 6 is set at one position. Rotation resistance varies by protrusions 22 and 27 getting over each other at the time before the engagement. The ending position of the rotation is established at the rotation position where the rotation resistance is lightened. The protrusion 22 is displaced to the center of the rotation by a deflection of a bridge-like part 25 during getting over. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a food and drink portable container including a container for containing food and drink and a stopper.

  Beverages that can be carried in containers such as beverages, soups, curry roux, and candy can be detachable with plugs that close the container mouth so that moisture in the container does not leak to the outside. Is provided. This type of plug is provided with an internal space for purposes such as an air heat insulating chamber, a space for installing a heat insulating material, a tea leaf or a seasoning container.

  Above all, the plug member provided with the first screw cylinder part and the bottom wall of the internal space and the plug cap member provided with the second screw cylinder part and the ceiling wall of the internal space can be attached and detached with both screw cylinder parts. There is a plug body in which an internal space is formed by fastening to (Patent Documents 1 and 2). The plug body can be attached to and detached from the container by a container side peripheral cover part integrally provided with the first screw cylinder part on the plug member and a screw part of the container. The screw cylinder portion and both screw portions are right-handed threads in consideration of operability that is generally familiar. When removing the stopper from the container, the container side peripheral cover part of the stopper member is grasped from the axial direction of the screw and twisted to release the fastening of the screw part. If the side circumference of the stopper cap member constitutes the side circumference of the stopper body, the side edge of the container side peripheral cover part will be grasped, the side edge of the stopper cap member will be grasped, and only the stopper cap member will be loosened unexpectedly. It can happen. In order to prevent this problem, as in Patent Document 1, conventionally, the tightening force of the plug member and the plug cap member is intentionally increased so that the plug cap member does not easily loosen, The outer diameter of the side peripheral part of the stopper cap member to be configured may be reduced.

Japanese Patent No. 3144339 JP 2009-67409 A

  For example, when the capacity of the container is increased, the outer diameter of the container side peripheral cover part of the stopper member also increases, and it becomes difficult to grip the container side peripheral cover part from the axial direction. For this reason, the upper surface of the stopper cap member is made axially lower than the container side peripheral cover part, or the axial height from the container side peripheral cover part of the side peripheral part of the stopper cap member constituting the side periphery of the stopper body. It is better to make the container side peripheral cover part easier to grip by reducing the height and to prevent unintentional loosening of the stopper cap member when removing the stopper from the container.

  However, when the upper surface of the stopper cap member is lowered, the outer diameter of the stopper cap member is reduced, and it is necessary to form a recess for inserting a finger. Therefore, the grip diameter of the plug cap member is reduced. If the plug cap member and the plug member are inadvertently tightened excessively, it is particularly difficult to twist the plug cap member when the plug cap member is later rotated to disassemble the plug body. In addition, when increasing the capacity, in order to increase the heat insulation performance of the internal space or increase the amount of accommodation, it is often required to enlarge the internal space, and it is necessary to make the recess sufficiently large and deep. Sometimes it is not possible.

  Moreover, if the axial height from the container side peripheral cover part of the side peripheral part of the stopper cap member is lowered, the grip diameter of the stopper cap member can be made relatively large, but the thickness of the side peripheral part is Less. Therefore, when removing the plug cap member with the plug attached to the container, the side peripheral portion should be shallowly grasped with a finger, and when removing the plug cap member with the plug removed from the container, The strength of the part is not reliable. Therefore, at any time, if the stopper cap member is carelessly overtightened, it is particularly difficult to twist the stopper cap member.

  On the other hand, if the tightening force required to fasten the plug cap member and the plug member is set to a small value, it will be easy for unintentional single loosening to occur, and if the cap is accidentally inadequately tightened, the plug cap member will be easily removed. End up.

  Accordingly, an object of the present invention is to provide a container for a plug member in a side peripheral portion of a plug cap member that constitutes a side periphery of the plug body while avoiding a decrease in operability of turning the plug cap member to release the fastening with the plug member. The object is to provide a lower height from the side peripheral cover part or to provide an upper surface of the stopper cap member lower than the container side peripheral cover part.

  In order to solve the above problems, the present invention includes a container for containing food and drink, and a plug body attached to and detached from the container, the plug body having an internal space located in the container, The screw cylinder part provided with the bottom wall of the internal space and the plug member provided with the second screw cylinder part and the ceiling wall of the internal space are detachably fastened by both screw cylinder parts. Thus, the internal space is formed, and the plug body is formed by a container-side peripheral cover portion integrally provided with the first screw cylinder portion on the plug member and a screw portion of the container. In the food and drink portable container that is detachable from the container, a detent structure that defines a tightening rotation limit position in one place by engagement of the convex surfaces of the plug cap member and the plug member, The convex parts of both members get on before the engagement. And an operation load variation structure that becomes lighter after the rotational resistance becomes heavier due to the balance, the end position of the tightening rotation is set at the rotational position where the rotational resistance becomes lighter, and one of the two convex portions is A configuration was adopted that protrudes in the radial direction on the bridge-like portion and is displaced toward the center of rotation by bending of the bridge-like portion during the overcoming.

If a detent structure is adopted in which the limit position of the tightening rotation is determined at one place by the engagement of the plug cap member and the plug member, it is not inadvertently tightened excessively. It has an operation load fluctuation structure that lightens after the rotation resistance becomes heavier when the convex parts of both members get over each other, and if the end position of tightening rotation is set at the rotation position where the rotation resistance becomes lighter, Since the end position is a position determined by the tightening force required to fasten both members, it is possible to prevent the operator from inadvertently tightening inadvertently by checking the operator with the operation load fluctuation structure that it has been turned to the end position of the tightening rotation. it can. In other words, the tightening operation can be limited by the anti-rotation structure and the operation load variation structure so that an appropriate tightening force is obtained every time both the members are fastened.
Since the end position of the tightening rotation is set at the rotational position at which the rotational resistance becomes light, the operation load fluctuation structure is prevented from loosening due to the elastic recovery of the bending of the bridge-like portion when the tightening rotation is completed. Therefore, it is not necessary to prevent the cap cap member from being loosened unexpectedly by only the tightening force necessary for fastening both members, and the torque of the fastening release rotation can be reduced and the cap cap member can be easily turned. Since one of the two convex portions constituting the operation load fluctuation structure protrudes in the radial direction on the bridge-shaped portion, and is provided so as to be displaced toward the rotation center side by the bending of the bridge-shaped portion during the climbing, The tightening torque during this period can be suppressed so that the rotation operation does not become difficult.
Thus, according to the configuration of the present invention, the tightening operation is performed so that an appropriate tightening force is obtained every time both the members are fastened, and the stopper cap member can be easily rotated so as not to be difficult to rotate. Because it is possible, while avoiding the deterioration of operability of turning the stopper cap member to release the fastening with the stopper member, from the container side peripheral cover portion of the stopper member on the side peripheral portion of the stopper cap member constituting the side periphery of the stopper body Or the upper surface of the stopper cap member can be provided lower than the container side peripheral cover portion.

  For example, the bridge-like portion is provided by forming a plurality of radial through holes in the corresponding directions of the plug cap member and the plug member, and the plurality of radial through holes are provided in corresponding screw cylinders. It is possible to adopt a configuration in which the axial height from the tip of the part is formed at a position higher than the screwing start end of the pressure side flank of the thread.

  The screw cylinder portion whose axial height from the tip of the screw cylinder portion is higher than the screwing start end of the pressure side flank of the screw thread is a screw cylinder whose axial height from the tip of the screw cylinder portion is lower than the screw thread. Compared to the part, the rigidity is increased by the spiral formation of the thread. Therefore, compared with the case where one of a plurality of radial through holes is arranged in a relatively low screw cylinder part, or the case where a bridge-like part is arranged at the tip of the screw cylinder part by forming one radial through hole. When the plug cap member and the plug member are separated and washed, they are not easily deformed even if they are accidentally pushed near the tip of the bridge-like part or the screw cylinder part, and damage and fatigue of these parts can be prevented. Therefore, it is possible to prevent the function load fluctuation structure from deteriorating due to the deformation of the bridge-like portion and the deviation from the set tightening force due to breakage near the tip of the screw tube portion.

  It is possible to adopt a configuration in which an engaging convex portion having the convex surface is integrally formed on the boundary of the bridge-shaped portion.

  By integrally forming the engaging convex portion having the convex surface constituting the detent structure on the boundary of the bridge-shaped portion, the strength on the boundary of the bridge-shaped portion can be increased using the engaging convex portion.

  It is possible to adopt a configuration in which the rotation preventing structure is provided so as to be engaged at a plurality of positions at the same time.

  Since the tightening rotation is stopped by engaging at a plurality of positions at the same time, the burden on each engaging portion can be reduced. In particular, when the engaging convex portion is integrally formed on the boundary of the bridge-shaped portion, the engaging convex portion can be made into a small engaging convex portion, so that the engaging convex portion is unlikely to obstruct the bridge-shaped portion.

  As described above, the present invention restricts the tightening operation so as to obtain an appropriate tightening force for each fastening of both members by the rotation preventing structure and the operation load variation structure, and provides the operation load variation structure. Since the cap cap member can be easily rotated so as not to make it difficult to rotate, the side periphery of the plug body is configured while avoiding deterioration in operability of turning the cap cap member to release the fastening with the plug member. The height of the plug member on the side peripheral portion of the stopper cap member from the container side peripheral cover portion or the upper surface of the plug cap member can be provided lower than the container side peripheral cover portion.

(A) is sectional drawing which shows the mode in the middle of the tightening rotation which fastens the stopper cap member and stopper member which concern on 1st Embodiment, (b) is a principal part top view of said (a), (c) is FIG. 4B is a partially enlarged plan view showing a state in which the rotation progresses from the time of (a) and the convex portion of the plug cap member climbs over the convex portion of the plug member; FIG. Sectional drawing which shows a mode that the convex surface etc. of the member engaged with the convex surface etc. of the plug member, (e) is a principal part top view of said (d). The longitudinal cross-sectional view which shows the whole structure of the food and drink portable container which concerns on 1st Embodiment. Exploded perspective view of the plug according to the first embodiment (A) is a side view of the plug cap member according to the first embodiment, (b) is a bottom view of (a), and (c) is a cross-sectional view taken along line cc in (b). The longitudinal cross-sectional view which shows the whole structure of the food and drink portable container which concerns on 2nd Embodiment.

  As shown in FIG. 2, the portable food and drink container according to the first embodiment of the present invention includes a container 1 for containing food and drink and a plug 2 that is attached to and detached from the container 1. The plug 2 has an internal space 3 located in the container 1. Further, the plug body 2 is provided with a plug member 6 provided with a first screw cylinder portion 4 and a bottom wall 5 of the internal space 3, and a second screw cylinder portion 7 and a ceiling wall 8 of the internal space 3. The internal space 3 is formed by fastening the stopper cap member 9 so as to be attachable and detachable with both screw cylinder portions 4 and 7. The plug 2 can be attached to and detached from the container 1 by a container-side peripheral cover 10 provided integrally with the first screw cylinder 4 on the plug member 6 and screw parts 11 and 12 of the container 1.

  The screw cylinder portions 4 and 7 and the screw portions 11 and 12 each have a concentric screw axis perpendicular to the horizontal plane. The right and left direction of the screw is a right screw. Hereinafter, the vertical direction in the state where the container 1 is erected on the horizontal plane is referred to as the up-and-down direction, the circumferential direction around the screw axis is referred to as the circumferential direction, and the portion that forms a side surface and extends over the entire circumferential direction is the lateral circumference. That's it.

  As for the container 1, the container opening is open | released by the upper surface. For example, an appropriate heat insulating container can be used as the container 1. In the illustrated example, it is a vacuum double container.

  A check valve 13 is provided on the bottom wall 5 of the plug member 6 that partitions the interior space 3 of the plug body 2 from the inside of the container 1. The check valve 13 can introduce outside air through the internal space 3 and can eliminate the negative pressure in the container 1.

  As shown in FIGS. 2 and 3, the plug member 6 includes a bottom member 14 in which the first screw cylinder portion 4 and the bottom wall 5 of the internal space 3 are integrally formed, a container side peripheral cover portion 10, and the container 1. It has the structure which couple | bonded the ring member 16 in which the upper surface part 15 which straddles the container mouth edge from above is integrally shape | molded. Thereby, the container side peripheral cover part 10 is integrally provided in the stopper member 6. The coupling structure is not particularly limited, but in the illustrated example, it is a forced fitting with a concavo-convex shape to prevent rotation.

  The first screw cylinder portion 4 and the container side peripheral cover portion 10 are female screws, respectively.

  Finger-attached surfaces 17 that are partially recessed on the side periphery of the container-side peripheral cover 10 are formed at a plurality of locations in the circumferential direction. The finger attachment surface 17 is defined as a regular portion where a finger is placed when the stopper 2 is attached to or detached from the container 1. The finger attachment surface 17 can be omitted.

  The plug cap member 9 is integrally formed with the second screw cylinder portion 7, the ceiling wall 8, and an outer flange portion 18 that has a portion that overlaps the upper surface portion 15 of the plug member 6 and that forms the side periphery of the plug body 2. It is molded into. On the top surface of the ceiling wall 8, another container 19 can be placed.

  The outer flange portion 18 is in contact with the upper surface portion 15 of the bottom member 6 by a tightening rotation for fastening the first screw cylinder portion 4 and the second screw cylinder portion 7 and functions as a screw head.

  Each of the cap cap member 9, the bottom member 14, and the ring member 16 is formed by injection molding of synthetic resin. Since the shapes of both members 14 and 16 are complicated, non-fiber reinforced synthetic resin is adopted in consideration of fluidity and cost.

  The container 1 is for carrying food and drink, which means that it may be used exclusively for carrying beverages, carrying food, or carrying food and drink. In the example of illustration, in order to ensure the capacity | capacitance used also for food / beverage with a double heat insulation container, the outer diameter D1 of the side periphery trunk | drum of the container 1 is over 85 mm. In order to make it difficult to hit the side peripheral body portion between the container side peripheral cover portion 10 and the bottom cover member 19 of the container 1 at the time of falling, the outer diameter D2 of the container side peripheral cover portion 10 is provided larger than the outer diameter D1. . In consideration of the size of the outer diameter D1 and the outer diameter D2, the vertical width t of the side peripheral portion of the plug cap member 9 constituting the side periphery of the plug body 2 in a state where the outer diameter D1 is properly screwed to the food container 1 is 5 mm or less. Each of the outer diameter D1, the outer diameter D2, and the vertical width t is an example. If the outer diameter D1 and the outer diameter D2 are reduced, the vertical width t can be set to a value exceeding 5 mm. . Even when the outer diameter D2 is set to 85 mm or less, in order not to loosen only the stopper cap member 9, it is better to make the vertical width t as small as possible.

  As shown in FIGS. 3 and 4, the cap cap member 9 is formed with a thread 20 on the side periphery of the second screw cylinder portion 7 which is a male screw. The spiral shape of the pressure side flank 21 of the screw thread 20 has a series from the screwing start end to the terminal end. The second screw cylinder portion 7 is not particularly provided with a portion that intentionally increases the release rotational torque.

  A convex portion 22 and an engaging convex portion 23 having a convex surface 23 a are formed on the side periphery of the second screw cylinder portion 7. Each of the convex portion 22 and the engaging convex portion 23 is a position on the extension along the spiral shape of the pressure side flank 21 of the screw thread 20 so as not to hinder the fastening with the first screw cylinder portion 4. Thus, it protrudes from the valley diameter to the outer diameter side at a diameter equal to or smaller than the thread diameter of the screw thread 20.

  Further, a bridge-like portion 25 is provided in the second screw cylinder portion 7 by forming a plurality of radial through holes 24. When the bridge-like portion 25 is bent toward the rotation center that is the axis of the screw, the convex portion 22 is also displaced to the same side.

  The plurality of radial through holes 24 are formed at positions where the axial height from the tip of the second screw cylinder portion 7 is higher than the screwing start end of the pressure side flank 21 of the screw thread 20. Accordingly, when the stopper cap member 9 is washed, even if the screw cylinder portion 7 is gripped or rubbed with a sponge or cloth, the convex portion 22 and the bridge-like portion 25 are hardly pushed.

  The engaging convex part 23 is integrally formed on the boundary of the bridge-like part 25. The boundary of the bridge-like portion 25 refers to the position that is the most loose and close to the rotational direction among the portions that can take the bridge width. Since the thickness of the synthetic resin near the boundary is increased by the engaging convex portion 23, the strength on the boundary of the bridge-shaped portion 25 can be increased by using the engaging convex portion 23. As long as the said bending of the bridge-shaped part 25 is obtained as desired, the engagement convex part 23 can be made into the appropriate circumferential direction length and arrangement | positioning.

  As shown in FIG. 3, a thread 26, a convex portion 27, a convex surface 28, and an engaging protrusion 29 are formed on the side periphery of the first screw cylinder portion 4 that is a female screw. Each of the convex portion 27, the convex surface 28, and the engaging projection 29 is an extension along the spiral shape of the pressure side flank of the screw thread 26 so as not to hinder the fastening with the second screw cylinder portion. At the position, it protrudes from the valley diameter to the outer diameter side below the thread diameter of the thread 26. The convex surface 28 is formed on the convex portion 27.

  FIG. 1A shows a state where the plug cap member 9 and the plug member 6 are being fastened. The first screw member 6 of the plug member 6 can be seen so that the thread 20 of the second screw cylinder portion 7 of the plug cap member 9 can be seen. A half cut-out section of the screw cylinder portion 4 is shown, and the thread 26 of the first screw cylinder portion 4 screwed into the screw thread 20 is indicated by a two-dot chain line in the drawing. FIG. 1B shows a cross section of the upper surface portion 15 of the plug member 6 and the screw thread 20 of the second screw cylinder portion 7 in FIG. 1 (a) and 1 (b), when the stopper cap member 9 is tightened and rotated (in the direction of the arrow), the convex portion 22, the convex surface 23a, the engaging convex portion 23 of the stopper cap member 9, and the convex portion of the stopper member 6. 27, the convex surface 28, and the engagement protrusion 29 are not particularly functioning, and the tightening rotation proceeds.

  Eventually, as shown in FIG. 1C, the convex portions 22 and 27 start to ride each other, and the rotational resistance becomes heavier than immediately before starting to ride. When the tightening rotation further proceeds from FIG. 1 (c), as shown in FIGS. 1 (d) and (e), the protrusions 22 and 27 pass over each other and rotate relative to the time when the tops touch each other. Resistance becomes lighter. Thereby, it will be in the state where the convex parts 22 and 27 got over each other. 1C and 1E have the same cut-out surface as in FIG. 1B, and FIG. 1D has the same cut-out surface as in FIG.

  During the overcoming, as shown in FIG. 1C, the convex portion 22 is displaced toward the center of rotation due to the bending of the bridge-like portion 25. The displacement of the convex portion 22 can suppress an increase in tightening torque during this time. Thereby, even if it is the operation which hold | gripped the thin synthetic resin side peripheral part of the plug cap member 9 until it will be overcoming as shown in FIG.1 (d), (e), it can carry out tightening rotation. We are trying not to be particularly difficult.

  Soon after the convex portions 22 and 27 are in a state of overcoming each other, the convex surface 23a formed on the convex portion 23 of the plug cap member 9 abuts on the convex surface 28 formed on the convex portion 27 of the plug member 6, and the plug cap member 9 and the plug member 6 are engaged in the tightening rotation direction. The end position of the tightening rotation is set at a rotational position where the rotational resistance becomes light, that is, a rotational position from the time when the convex surface 23a hits the convex surface 28 after passing the top. That is, in such a rotational position, the tightening force necessary for fastening the stopper cap member 9 and the stopper member 6 is set. Due to the engagement between the convex surfaces 23a and 28 of the stopper cap member 9 and the stopper member 6, the tightening rotation can be stopped each time at a specific rotational position. In other words, the limit position of the tightening rotation of the fastening by the screw cylinder portions 4 and 7 can be determined at one place.

  Further, at the same time when the convex surfaces 23a and 28 abut against each other, the spiral tip 20a of the screw thread 20 of the plug cap member 9 abuts against the engaging protrusion 29 of the plug member 6 in the tightening rotation direction, and the plug cap member 9 and the plug member 6 are engaged in the tightening rotation direction. It is possible to reduce the burden on the individual engagement locations (the convex surfaces 23a and 28, the tip 20a of the thread 20 and the engagement protrusion 29). Since the engagement convex portion 23 can be formed small on the boundary of the bridge-shaped portion 25, the engagement convex portion 23 is unlikely to hinder the bridge-shaped portion 25 from being bent. The tightening rotation can be stopped with only one of these engagements, thereby improving fault tolerance.

  In the first embodiment as described above, the screw cap cylinder portions 4 and 7 are formed by engaging the cap cap member 9 and the convex surfaces 23a and 28 of the plug member 6, the tip end portion 20a of the screw thread 20 and the engaging protrusions 29. The rotation preventing structure that determines the limit position of the tightening rotation of the fastening at one place and the rotation by the protrusions 22 and 27 of the members 9 and 6 getting over each other before the engagement of the protrusions 23a and 28, etc. It has an operation load variation structure that becomes lighter after the resistance becomes heavier, the end position of the tightening rotation is set at the rotational position where the rotational resistance becomes lighter, and the convex part 22 projects in the radial direction on the bridge-like part 25 to overcome the above Since it is provided so as to be displaced toward the center of rotation due to the bending of the bridge-like portion 25, the convex surfaces 23a, 28, etc. forming the rotation preventing structure are not inadvertently overtightened, and the operation load variation structure operator To confirm that the turned up end of the clamping rotation can be eliminated to become inadvertently tighten insufficient. Accordingly, in the first embodiment, the tightening operation can be structurally limited so that an appropriate tightening force is obtained every time the members 9 and 6 are fastened.

  In the first embodiment, since the end position of the tightening rotation is set at the rotation position where the rotational resistance becomes light, the operation load variation structure is formed by the elastic recovery of the bending of the bridge-like portion 25 in the state where the tightening rotation is finished. The resistance that the convex portion 22 forms over the convex portion 27 in the releasing rotation direction is prevented from loosening. Therefore, in the first embodiment, it is not necessary to prevent the plug cap member 9 from being suddenly loosened only by the tightening force necessary for fastening both the members 9 and 6, and the torque of the fastening release rotation is reduced, and the plug cap member is reduced. 9 can be easily turned.

  In the first embodiment, one of the projecting portions 22 and 27 constituting the operation load variation structure projects radially on the bridge-shaped portion 25, and moves toward the center of rotation due to the bending of the bridge-shaped portion 25 during the overcoming. Since it is provided so as to be displaced, it is possible to suppress the tightening torque during this period so that the rotation operation does not become difficult.

  As described above, in the first embodiment, the tightening operation is performed so that an appropriate tightening force is obtained every time both the members 9 and 6 are fastened, and the plug cap member 9 can be easily rotated so that the rotation operation is not difficult. As shown in FIG. 2, the plug cap member 9 constituting the side periphery of the plug body 2 is avoided while avoiding a decrease in operability of turning the plug cap member 9 to release the fastening with the plug member 6. The height of the side peripheral portion from the container-side peripheral cover portion 10 can be made lower.

  As a food and drink portable container in which the present invention is particularly useful, the outer diameter D2 of the container-side peripheral cover 10 exceeds 85 mm because of difficulty in grasping from above when the stopper 2 is removed from the container 1, For the purpose of alleviating the difficulty, the vertical width t of the side peripheral portion of the plug cap member 9 constituting the side periphery of the plug body 2 is 5 mm or less, and the outer diameter of the container side peripheral cover portion 10 is less than or equal to the outer diameter D2. From the limit that the strength against gripping of the side peripheral portion of the stopper cap member 9 can be secured with a material, the stopper cap member 9 may be formed of the above-described synthetic resin.

  The protrusions 22 and 27, the engagement protrusions 23, the engagement protrusions 29, the engagement protrusions on the side of the cap cap member 9 instead of the tip 20a of the screw thread 20, the protrusions 23a and 28, etc. Unless it becomes, it can provide in the appropriate position of the stopper cap member 9 and the stopper member 6. It is also possible to reverse the relationship between the male screw and the female screw of the first screw cylinder portion 4 and the second screw cylinder portion 7 and to reverse the relationship between the convex portions 22 and 27 and the like accordingly. The screw directions of the first screw cylinder portion 4 and the second screw cylinder portion 7, and the screw directions of the plug 2 and the container 1 shown in FIG. 2 are not limited to right-hand screws, but may be left-hand screws. A click sound may be generated when the convex portion 22 gets over the convex portion 27, and the confirmation may be confirmed not only by a change in rotational resistance but also by a sound.

  A second embodiment of the present invention will be described with reference to FIG. In the following, description of constituent elements that are considered to be the same as those in the first embodiment will be omitted, and differences will be mainly described. In the second embodiment, the upper surface of the stopper cap member 32 is made lower in the vertical direction than the container-side peripheral cover portion 10 of the stopper member 31 constituting the stopper body 30 by providing the anti-rotation structure and the operation load fluctuation structure. It is provided so that the capacity of the internal space 33 is easily secured. In order to turn the plug cap member 32 when the plug cap member 32 and the plug member 31 are fastened or unfastened, a plurality of recesses 35 are formed on the ceiling wall 34 of the plug cap member 32 so that fingers can be inserted and twisted. ing. As described above, the stopper cap member 32 can be easily rotated so that the rotation operation does not become difficult. Therefore, the concave portion 35 is prevented from being deep and enlarged in the radial direction, and the reduction in the capacity of the internal space 33 is suppressed. Can do.

DESCRIPTION OF SYMBOLS 1 Container 2,30 Plug body 3,33 Internal space 4 1st screw cylinder part 5 Bottom wall 6,31 Plug member 7 2nd screw cylinder part 8,34 Ceiling wall 9,32 Plug cap member 10 Container side peripheral cover Portions 11 and 12 Thread portion 20 Thread 20a Spiral tip portion 21 Pressure side flank 22, 27 Convex portion 23a, 28 Convex surface 23 Engagement convex portion 24 Radial through hole 25 Bridge-like portion 29 Engagement projection portion 35 Concave portion

Claims (4)

  A container for containing food and drink, and a plug body attached to and detached from the container, the plug body having an internal space located in the container, the first screw tube portion and the bottom wall of the internal space being The internal space is formed by detachably fastening the provided cap member and the cap cap member provided with the second screw cylinder portion and the ceiling wall of the internal space by both screw cylinder portions. The plug body can be attached to and detached from the container by a container side peripheral cover part integrally provided with the first screw cylinder part on the stopper member and a screw part of the container. In the container for use, a stopper structure that determines the limit position of the tightening rotation of the fastening in one place by engagement of the convex surfaces of the stopper cap member and the stopper member, and a protrusion of both members at a time before the engagement. Rotation resistance becomes heavy because the parts get over each other And an end position of the tightening rotation is set at a rotational position where the rotational resistance becomes light, and one of the convex portions protrudes in a radial direction on the bridge-shaped portion, The food and drink portable container is provided so as to be displaced toward the center of rotation by the bending of the bridge-like portion during the overcoming.   The bridge-shaped portion is provided by forming a plurality of radial through holes on the corresponding side of the plug cap member and the plug member, and the plurality of radial through holes are formed on the corresponding screw tube portions. The container for portable foods and drinks according to claim 1, wherein the height in the axial direction from the tip is formed at a position higher than the screwing start end of the pressure side flank.   The food and drink portable container according to claim 1 or 2, wherein an engaging convex portion having the convex surface is integrally formed on a boundary of the bridge-shaped portion.   The container for food and beverage according to any one of claims 1 to 3, wherein the anti-rotation structure is provided to be engaged at a plurality of locations at the same time.

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