Cap unit and container with cap

Abstract

The present application relates to a lid unit and a container with a lid. The present application provides a lid unit having a simple structure and capable of easily attaching and detaching a lid body with respect to a lid main body. The lid unit includes: a lid main body that closes an upper opening of a container main body and is provided with a liquid passage on a front upper portion; a lid body that opens and closes the liquid passage in a state of being slidably attached to the lid main body in a front-rear direction; and a lid opening and closing mechanism that holds the lid body in a closed position in which the lid body closes the liquid passage and an open position in which the lid body opens the liquid passage. The lid opening and closing mechanism includes: a pair of plungers that protrude from both sides in a width direction of the lid body; and a pair of guide grooves that are located on both sides of the lid main body in the width direction of the lid body and guide the pair of plungers to be slid in the front-rear direction of the lid main body in a state of being detachably engaged with the pair of plungers.

Description

Technical Field

[0001] This invention relates to lid units and lidded containers. Background Technology

[0002] Conventionally, there are lidded containers with a cap unit (plug) that can be detachably installed on the neck of the container body with an upper opening, thereby closing the upper opening of the container body (for example, see Patent Document 1 below).

[0003] For example, Patent Document 1 discloses a structure comprising: a cover body, an upper opening of a closed container body, and a liquid inlet provided on the upper front side; and a cover body that is slidably installed in the front-rear direction of the cover body to open and close the liquid inlet, wherein the cover body is held in place of the cover body at the position where the liquid inlet is closed by engaging an elastic latching portion provided on the cover body with a latching receiving portion provided on the cover body.

[0004] Patent Document 1: Japanese Patent Application Publication No. 2015-166258

[0005] However, in the cover unit described in the aforementioned Patent Document 1, by cutting the side cuts on both sides of the cover body in the width direction to match the shape of the elastic latching parts, a structure is formed in which a pair of elastic latching parts can be elastically deformed.

[0006] However, in the cover unit described in Patent Document 1, the cover body is difficult to detach from the cover body when it is removed from the cover body for cleaning. In addition, not only is it difficult to clean the gap (cut-out portion) formed between the cover and the elastic latching part, but the shape of the mold forming the elastic latching part also becomes complicated. Summary of the Invention

[0007] The present invention was made in view of the existing situation, and its object is to provide a lid unit and a lidded container, wherein the lid unit has a simple structure and the lid body can be easily attached and detached from the lid body, and the lidded container can be further improved in terms of ease of use by having such a lid unit.

[0008] To achieve the above objectives, the present invention provides the following solutions.

[0009] [1] A cover unit that is detachably mounted relative to a container body with an upper opening, characterized in that it comprises:

[0010] The lid closes the upper opening of the container body and has a liquid inlet on the upper front side.

[0011] The cover, in a state where it is slidably mounted on the cover body, allows for the opening and closing of the liquid inlet; and

[0012] The cover opening and closing mechanism holds the cover, which slides between a closed position where the cover closes the liquid inlet and an open position where the cover opens the liquid inlet, in the closed position and the open position, respectively.

[0013] The above-mentioned cover opening and closing mechanism has:

[0014] A pair of plungers protruding from both sides of the aforementioned cover in the width direction; and

[0015] A pair of guide grooves are located on both sides of the cover body in the width direction of the cover body, and guide the pair of plungers to slide freely in the cover body when the pair of plungers are engaged and disengaged freely.

[0016] [2] The cover unit described in [1] above is characterized in that,

[0017] The aforementioned cover is installed in a direction that allows it to slide freely in the front-back direction of the aforementioned cover body.

[0018] [3] The cover unit described in [2] above is characterized in that,

[0019] The above-mentioned cover opening and closing mechanism has:

[0020] A pair of front-side locking portions, located at the front end of the pair of guide grooves, lock the pair of plungers; and

[0021] A pair of rear-side locking portions, located at the rear end of the aforementioned pair of guide grooves, lock the aforementioned pair of plungers.

[0022] The cover is held in the closed position by the pair of plungers locking against the pair of front locking parts.

[0023] The cover is held in the open position by the pair of plungers locking the pair of rear locking parts.

[0024] [4] The cover unit described in [2] or [3] above is characterized in that,

[0025] The aforementioned cover body has a guide recess formed by cutting the upper part, which includes the aforementioned liquid inlet, in the front-to-back direction with a width corresponding to the aforementioned cover body.

[0026] The cover is mounted in a position where it is positioned inside the guide recess and can slide freely in the front-rear direction of the cover body.

[0027] [5] The cover unit described in [4] above is characterized in that,

[0028] The cover has a shape that is coplanar with the upper surface of the cover body when it is disposed inside the guide recess.

[0029] [6] The cover unit described in [4] above is characterized in that,

[0030] The aforementioned liquid inlet has an opening with a width corresponding to the bottom surface of the aforementioned guide recess, and simultaneously has a shape in which it opens narrower than the bottom surface of the aforementioned guide recess, and the narrow opening portion is set to be longer than the portion corresponding to the width of the bottom surface of the aforementioned guide recess.

[0031] [7] The cover unit according to any one of [1] to [3] above is characterized in that,

[0032] The aforementioned cover is slidable via an operating protrusion located on its upper part.

[0033] [8] The cover unit according to any one of [1] to [3] above is characterized in that,

[0034] The aforementioned cover partially overlaps with the aforementioned liquid inlet in the aforementioned open position.

[0035] [9] The cover unit according to any one of [1] to [3] above is characterized in that,

[0036] The aforementioned cover has a symmetrical shape in its front-to-back direction, thereby allowing it to be installed in a way that allows it to be interchanged with the aforementioned cover body.

[0037]

[10] A lidded container, comprising:

[0038] The cover unit described in any of [1] to [9] above; and

[0039] The container body for mounting the aforementioned cover unit.

[0040]

[11] The lidded container described in

[10] above is characterized in that,

[0041] The container body described above has a vacuum insulation structure.

[0042] As described above, according to the present invention, a lid unit and a lidded container can be provided. The lid unit has a simple structure and allows for easy assembly and disassembly of the lid relative to the lid body. The lidded container can further improve ease of use by having such a lid unit. Attached Figure Description

[0043] Figure 1 This is a perspective view showing the state in which the lid of a lidded container having a lid unit according to an embodiment of the present invention is in a closed position.

[0044] Figure 2 It is a three-dimensional diagram showing the state of a covered container with the lid in the open position.

[0045] Figure 3 It is a cross-sectional view showing the closed position of the lid in a covered container.

[0046] Figure 4 It is a cross-sectional view showing the lid of a covered container in the open position.

[0047] Figure 5 This is an exploded perspective view of the cover unit viewed from above.

[0048] Figure 6 This is an exploded perspective view of the cover unit from the bottom side.

[0049] Figure 7 It means based on Figure 3 and Figure 4 The cross-sectional perspective view of the cover unit of line segment CC shown is a view of the cover body in a state between the closed position and the open position.

[0050] Figure 8 It means based on Figure 3 The diagram shows a three-dimensional cross-section of the cover unit of line segment CC, in which the cover is in a closed position.

[0051] Figure 9 It means based on Figure 4 The diagram shows a three-dimensional cross-sectional view of the cover unit of line segment CC in the open position.

[0052] Explanation of reference numerals in the attached figures

[0053] 1…. Cover unit; 2… Container body; 3… Outer container; 4… Inner container; 5… Vacuum insulation layer; 6… Liquid inlet; 7… Cover body; 8… Cover body; 9… Cover opening and closing mechanism; 10… Waterproof sealing component; 11… Guide recess; 12… Operating protrusion; 13… Plunger; 14… Guide groove; 15a… Front locking part; 15b… Rear locking part. Detailed Implementation

[0054] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0055] As one embodiment of the present invention, for example, Figures 1-9 The lidded container 100 with lid unit 1 shown will be described.

[0056] also, Figure 1 This is a perspective view showing the state in which the lid 8 is in the closed position in the lidded container 100 with lid unit 1. Figure 2 This is a perspective view showing the lid 8 in the open position within the covered container 100. Figure 3It is a cross-sectional view showing the lid 8 in the closed position in the lidded container 100. Figure 4 This is a cross-sectional view showing the lid 8 in the open position within the covered container 100. Figure 5 This is an exploded perspective view of cover unit 1 viewed from above. Figure 6 This is an exploded perspective view of cover unit 1 viewed from below. Figure 7 It means based on Figure 3 and Figure 4 The cross-sectional perspective view of the cover 8 in the state between the closed position and the open position in the cross-section of the cover unit 1 of the line segment CC shown. Figure 8 It means based on Figure 3 The cross-sectional perspective view of the cover 8 in the closed position in the cross-section of the cover unit 1 of the line segment CC shown. Figure 9 It means based on Figure 4 The cross-sectional perspective view of the cover 8 in the open position of the cover unit 1 of the line segment CC shown.

[0057] like Figures 1-4 As shown, the lidded container 100 of this embodiment includes a lid unit 1 of this embodiment and a container body 2 on which the lid unit 1 is detachably mounted. The lidded container 100 is a thermos (beverage container) capable of keeping the beverage (contents) contained in the container body 2 warm or cold through the container body 2 having a vacuum insulation structure.

[0058] Specifically, the container body 2 is a double-layered container, comprising a bottomed cylindrical outer container 3 made of, for example, stainless steel, and an inner container 4, with their openings joined together so that the inner container 4 is housed inside the outer container 3. Furthermore, a vacuum insulation layer 5 is provided between the outer container 3 and the inner container 4. The vacuum insulation layer 5 can be formed, for example, by blocking an exhaust vent located at the center of the bottom surface of the outer container 3 within a chamber that has been depressurized (evacuated) to a high vacuum.

[0059] The container body 2 has a generally circular bottom part 2a and a cylindrical part 2b that rises from the outer periphery of the bottom part 2a in a generally cylindrical shape. The upper end of the cylindrical part 2b serves as the upper opening 2c of the container body 2 and has a circular opening.

[0060] Furthermore, the lidded container 100 of this embodiment has a generally cylindrical shape, but the shape of the lidded container 100 is not particularly limited and can be appropriately modified according to size, appearance design, etc. In addition, the outer peripheral surface of the container body 2 can also be coated or printed.

[0061] Reference Figures 3-9The structure of the cover unit 1 in this embodiment will be described. In the following description, the side of the cover unit 1 where the liquid inlet 6 is provided will be referred to as the "front side" of the cover unit 1, and the side opposite to the side where the liquid inlet 6 is provided will be referred to as the "rear side" of the cover unit 1.

[0062] like Figures 3-6 As shown, the cap unit 1 of this embodiment constitutes a plug that closes the upper opening 2c of the container body 2. Specifically, the cap unit 1 includes: a cap body 7 that closes the upper opening 2c of the container body 2 and has a liquid inlet 6 provided on its upper front side; a cap body 8 that is slidably installed in the front-rear direction of the cap body 7 to open and close the liquid inlet 6; and a cap opening and closing mechanism 9 that holds the cap body 8, which slides between a closed position where the cap body 8 closes the liquid inlet 6 and an open position where the cap body 8 opens the liquid inlet 6, in the closed position and the open position.

[0063] The cover body 7 is made of heat-resistant resins such as polypropylene (PP) and polymethylpentene (PMP). The cover body 7 has a generally cylindrical peripheral wall portion 7a, a generally circular plate-shaped upper wall portion 7b covering the upper part of the peripheral wall portion 7a, an upper edge portion 7c protruding upward from the periphery of the upper wall portion 7b, an upper flange portion 7d protruding outward from the periphery of the upper edge portion 7c, and a lower flange portion 7e protruding outward from the periphery of the lower end side of the peripheral wall portion 7a.

[0064] The lid body 7 is configured such that, with the peripheral wall portion 7a inserted into the inner side of the container body 2 through the upper opening portion 2c, the lower surface of the upper flange portion 7d abuts against the upper end of the container body 2, thereby closing the upper opening portion 2c of the container body 2.

[0065] A waterproof sealant 10 is detachably installed on the peripheral wall 7a of the cap body 7. The waterproof sealant 10 is an annular sealing component used to seal the cap body 7 and the container body 2. The waterproof sealant 10 is made of elastic components such as heat-resistant rubber or elastomers.

[0066] Correspondingly, a fitting recess 7f is provided on the outer periphery of the peripheral wall portion 7a for the insertion of the waterproof sealant 10. The fitting recess 7f is formed in an annular shape between the upper flange portion 7d and the lower flange portion 7e.

[0067] On the other hand, a pinching piece 10a protruding in the narrowing direction is provided on the inner periphery of the waterproof sealant 10. Correspondingly, a cutout portion 7g is provided on the cover body 7, which is formed by cutting a portion of the rear end side of the lower flange portion 7e. The waterproof sealant 10 is inserted into the inner side of the fitting recess 7f such that the pinching piece 10a is located inside the cutout portion 7g.

[0068] When the gripping piece 10a is held, the waterproof sealant 10 can be removed from the fitting recess 7f (cap body 7) by elastically deforming (stretching) itself. This allows the waterproof sealant 10 and the cap body 7 to be cleaned separately, thus maintaining hygiene between the waterproof sealant 10 and the fitting recess 7f (cap body 7).

[0069] Furthermore, an elastic flange portion 10b protruding throughout the entire circumference in the expansion direction is provided on the outer peripheral surface of the waterproof sealant 10. When the peripheral wall portion 7a is embedded inside the container body 2, the waterproof sealant 10 is in a state where the elastic flange portion 10b elastically deforms while maintaining a tight seal throughout the entire circumference of the inner peripheral surface of the inner container 4 (container body 2). As a result, a liquid-tight seal (waterproofing) can be achieved between the cap body 7 and the container body 2.

[0070] The cover 8 is made of heat-resistant resins such as polypropylene (PP) and polymethylpentene (PMP). The cover 8 has a generally flat shape extending in the front-to-back direction. In addition, the cover 8 has a symmetrical shape in both the front-to-back direction and the left-to-right (width) direction.

[0071] Correspondingly, a guide recess 11 is provided in the cover body 7. The guide recess 11 is formed by cutting the upper wall portion 7b, including the liquid inlet 6, in the front-back direction with a width corresponding to that of the cover body 8. In addition, the guide recess 11 has a symmetrical shape in its front-back direction.

[0072] The liquid inlet 6 is located on the front side of the guide recess 11 and is configured to penetrate the bottom surface of the guide recess 11 in the thickness direction. Furthermore, the liquid inlet 6 has the following shape: it opens rearward from a position along the inner circumferential surface of the front side of the upper edge 7c with a width corresponding to the bottom surface of the guide recess 11, and opens narrower than the bottom surface of the guide recess 11 in the middle. Additionally, the length A of this narrow opening is longer than the length B of the portion corresponding to the width of the bottom surface of the guide recess 11 (A > B). Since the narrow opening abuts against the bottom surface of the cover 8, the sliding operation of the cover 8 becomes smooth, and it is possible to prevent the cover 8 from falling off into the inside of the liquid inlet 6.

[0073] The cover 8 is disposed inside the guide recess 11, thereby allowing it to be slidably installed along the guide recess 11 in the front-rear direction of the cover body 7. In addition, the cover 8 has a symmetrical shape in its front-rear direction, thereby allowing it to be installed in a position that can be interchanged with respect to the guide recess 11.

[0074] Furthermore, the cover 8 has a shape that is coplanar with the cover body 7 when disposed inside the guide recess 11. Specifically, the upper surface of the upper wall portion 7b is concave from its center toward its outer periphery. Correspondingly, the bottom surface of the guide recess 11 is also concave in its front-rear direction. On the other hand, the cover 8 has a shape that curves upward in its front-rear direction, matching the shapes of the upper surfaces of these upper wall portions 7b and the bottom surface of the guide recess 11.

[0075] The cover 8 closes the liquid inlet 6 in the closed position and opens the liquid inlet 6 in the open position, partially overlapping with the liquid inlet 6. Thus, in the cover unit 1 of this embodiment, the cover 8 can be easily removed from the inside of the guide recess 11 via the front end portion of the cover 8 partially overlapping with the liquid inlet 6 in the open position.

[0076] An operating protrusion 12 for opening and closing the cover 8 is provided on the upper part of the cover 8. The operating protrusion 12 extends along the width direction at the center of the cover 8 and protrudes upward. In the cover unit 1 of this embodiment, the cover 8 can be easily slid in the front-back direction by means of the operating protrusion 12.

[0077] The cover opening and closing mechanism 9 has: a pair of plungers 13 protruding from both sides of the cover body 8 in the width direction; and a pair of guide grooves 14 located on both sides of the cover body 7 across the width direction of the cover body 8, which guide the pair of plungers 13 to slide freely in the front-back direction of the cover body 7 when the pair of plungers 13 are engaged and disengaged freely.

[0078] A pair of plungers 13 are configured such that a spring located inside them can apply force to a ball (or pin) located at their front end, and the ball (or pin) can be pressed inward against the force of the spring. The pair of plungers 13 are located in the center of the cover body 8 and are installed with the ball (or pin) protruding from both sides of the cover body 8 in the width direction.

[0079] A pair of guide grooves 14 are located in the center of the guide recess 11, and cuts are formed on both sides of the guide recess 11 in the front-back direction along the width direction.

[0080] In the cover opening and closing mechanism 9, when the cover body 8 is inserted into the inner side of the guide recess 11 from the upper part of the cover body 7, a pair of plungers 13 are engaged with a pair of guide grooves 14. In this state, the cover body 8 disposed inside the guide recess 11 can be held to slide freely in the front-back direction.

[0081] Furthermore, when a pair of plungers 13 are engaged with a pair of guide grooves 14, the engagement width of the pair of plungers 13 and the pair of guide grooves 14 is larger than the width of the gap between the cover 8 and the side of the guide recess 11, thus enabling reliable engagement.

[0082] On the other hand, in the cover opening and closing mechanism 9, by releasing the engagement state of a pair of plungers 13 relative to a pair of guide grooves 14, the cover 8 can be removed from the inside of the guide recess 11 regardless of where the cover 8 is located inside the guide recess 11.

[0083] In addition, the cover opening and closing mechanism 9 has: a pair of front locking portions 15a, located at the front end of a pair of guide grooves 14, locking a pair of plungers 13; and a pair of rear locking portions 15b, located at the rear end of a pair of guide grooves 14, locking a pair of plungers 13.

[0084] The front locking portion 15a and the rear locking portion 15b, through protrusions protruding from the inside of the guide groove 14, disconnect a portion of the front end side and the rear end side of the guide groove 14, thereby forming a recess for locking the plunger 13.

[0085] In the cover opening and closing mechanism 9, such as Figure 7 As shown, after a pair of plungers 13, guided by a pair of guide grooves 14, pass over the protrusion, the pair of plungers 13 engage with a pair of front locking portions 15a, thereby holding the cover 8 in place. Figure 8 The closed position shown.

[0086] On the other hand, in the cover opening and closing mechanism 9, such as Figure 7 As shown, after a pair of plungers 13, guided by a pair of guide grooves 14, pass over the protrusion, the pair of plungers 13 engage with a pair of rear-side locking portions 15b, thereby holding the cover 8 in place. Figure 9 The open position shown.

[0087] In the lidded container 100 of this embodiment with the structure described above, the front side of the upper edge 7c is used as the drinking opening, and when the container body 2 is tilted forward, the beverage (contents) flowing out of the container body 2 through the liquid inlet 6 can be drunk.

[0088] As described above, in the cover unit 1 of this embodiment, by providing the cover opening and closing mechanism 9 described above, it has a simple structure and can easily assemble and disassemble the cover body 8 relative to the cover body 7.

[0089] Specifically, in the cover unit 1, in the cover opening and closing mechanism 9, by having a pair of plungers 13 engaged with a pair of guide grooves 14, the cover 8 disposed inside the guide recess 11 can be held to slide freely in the front-back direction. On the other hand, by releasing the engagement of the pair of plungers 13 with the pair of guide grooves 14, the cover 8 can be easily removed from the inside of the guide recess 11 from any position.

[0090] Furthermore, in the cover unit 1 of this embodiment, the cover body 7 and the cover body 8 can be cleaned separately, thereby maintaining hygiene between the cover body 7 and the cover body 8.

[0091] Furthermore, in the lidded container 100 of this embodiment, by providing such a lid unit 1, the lid 8 can be easily opened and closed with one hand while holding the container body 2, thus further improving ease of use.

[0092] Furthermore, the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

[0093] For example, in the above-mentioned cover opening and closing mechanism 9, a pair of plungers 13 located in the central part of the cover body 8 are provided to protrude from both sides of the cover body 8 in the width direction, but it is also possible that the pair of plungers 13 are respectively provided on both sides of the cover body 8 in the front-back direction.

[0094] Furthermore, in such a structure, it is acceptable as long as the guide groove 14, the front locking part 15a and the rear locking part 15b are provided to match the front plunger 13, and the guide groove 14, the front locking part 15a and the rear locking part 15b are provided to match the rear plunger 13.

[0095] Furthermore, in the above embodiment, the upper surface of the upper wall portion 7b and the cover 8 are formed in a concave curved shape from the central portion toward the outer periphery, but the upper surface of the upper wall portion 7b and the cover 8 may also be flat or inclined to the front or rear side.

[0096] Furthermore, in the above embodiments, the present invention is exemplified in the case of applying the present invention to a thermos cup (beverage container) that maintains heat preservation and cold preservation functions through the container body 2 with the above-described vacuum insulation structure. However, the lid opening and closing mechanism 9 of the present invention can also be widely applied to lidded containers that have a container body and a lid unit that is detachably mounted on the container body.

Claims

1. A cover unit, which is detachably mounted to a container body with an upper opening, characterized in that, have: The lid body seals the upper opening of the container body and has a liquid inlet on the upper front side; The cover, in a state of being slidably mounted on the cover body, opens and closes the liquid inlet; and The cover opening and closing mechanism holds the cover, which slides between a closed position (closing the liquid inlet) and an open position (opening the liquid inlet), in the closed position and the open position. The cap body has a guide recess in the upper part, including the liquid inlet, formed by a cut of a width corresponding to the cap body, which is symmetrical in the front-back direction. The cover is slidably mounted on the cover body in the front-rear direction, positioned inside the guide recess, and has a symmetrical shape in both the front-rear and width directions, thereby allowing for flexible installation relative to the guide recess in both front-rear and back-rear positions. The cover opening and closing mechanism has: A pair of plungers, located in the center of the cover, protruding from both sides of the cover in the width direction; and A pair of guide grooves are located on both sides of the cover body across the width direction and at the center of the guide recess. Cutouts are formed along the two sides of the guide recess in the front-rear direction, and these grooves guide the pair of plungers to slide freely on the cover body while allowing them to be easily engaged and disengaged. By releasing the engagement of the pair of plungers with respect to the pair of guide grooves, the cover can be removed from the inside of the guide recess regardless of its position within the guide recess.

2. The cover unit according to claim 1, characterized in that, The cover opening and closing mechanism has: A pair of front-side locking portions, located at the front end of the pair of guide grooves, lock the pair of plungers; and A pair of rear-side locking portions, located at the rear end of the pair of guide grooves, lock the pair of plungers. The cover is held in the closed position by the pair of plungers locking against the pair of front locking parts. The cover is held in the open position by the pair of plungers locking against the pair of rear locking portions.

3. The cover unit according to claim 1 or 2, characterized in that, The fluid inlet has an opening with a width corresponding to the bottom surface of the guide recess, while having a shape that is narrower than the bottom surface of the guide recess in the middle, and the narrow opening portion is set to be longer than the portion corresponding to the width of the bottom surface of the guide recess.

4. The cover unit according to claim 1 or 2, characterized in that, The cover partially overlaps with the liquid inlet in the open position.

5. The cover unit according to claim 1 or 2, characterized in that, When the cover is positioned inside the guide recess, it can be installed and removed not only from the front and back directions but also from above.

6. A cover unit, which is detachably mounted to a container body with an upper opening, characterized in that, have: The lid body seals the upper opening of the container body and has a liquid inlet on the upper front side; The cover, in a state of being slidably mounted on the cover body, opens and closes the liquid inlet; and The cover opening and closing mechanism holds the cover, which slides between a closed position (closing the liquid inlet) and an open position (opening the liquid inlet), in the closed position and the open position. The cap body has a guide recess in the upper part, including the liquid inlet, formed by a cut of a width corresponding to the cap body, which is symmetrical in the front-back direction. With the cover positioned inside the guide recess, it can be freely slidably installed in the front-to-back direction and also from above in the front-to-back direction of the cover body. The liquid inlet has an opening with a width corresponding to the bottom surface of the guide recess, while having a shape in which it narrows slightly compared to the bottom surface of the guide recess, and the narrow opening portion is set to be longer than the portion corresponding to the width of the bottom surface of the guide recess. The cover opening and closing mechanism has: A pair of plungers, located in the center of the cover, protruding from both sides of the cover in the width direction; and A pair of guide grooves are located at the center of the guide recess, and cuts are formed on both sides of the guide recess in the front-back direction along the width direction. These grooves guide the pair of plungers to slide freely on the cover body while allowing them to be easily engaged and disengaged. By releasing the engagement of the pair of plungers with respect to the pair of guide grooves, the cover can be removed from the inside of the guide recess regardless of its position within the guide recess.

7. A container with a lid, characterized in that have: The cover unit according to any one of claims 1 to 6; and The container body for mounting the cover unit.

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