JP4588610B2 - Liquid container lid structure - Google Patents

Description

  The present invention relates to a lid structure in a liquid container such as a pot, and more particularly to a structure for attaching and detaching a lid to a stopper.

Generally, the lid structure of the liquid container includes a lid member that is detachably screwed to the stopper and a seal portion that is attached to the lid and seals the outlet of the stopper. When opening and closing the outlet of the plug body, the cover member is attached or removed by twisting it once or twice. Hereinafter, this lid structure is referred to as “screw type” (Patent Document 1).
In addition, as a lid structure for other liquid containers, a suction mouth is attached to the outlet of the stopper so as to be movable up and down, and the suction mouth cap is elastically engaged with the outlet and the outlet is sealed. Is also known. When the mouthpiece cap is pulled up, the mouthpiece moves upward at the same time, and when the mouthpiece cap is pulled up more than a certain level, the engagement with the mouthpiece is released by elastic deformation of the engaging rib, and the mouthpiece cap is opened. . Hereinafter, this lid structure is referred to as a “pull-up type” (Patent Document 2).

In addition, in order to prevent the lid of the liquid container from being removed due to an unexpected impact from the outside, it is conventionally known that a part of the lid is locked by a lock member provided on a part of the container body (Patent Document). 3).
Japanese Patent Laid-Open No. 2003-155050 (paragraph 0015, FIGS. 1 and 2) Japanese Patent No. 3194808 (paragraph 0016, FIGS. 1 and 2) JP 2002-209664 A (paragraph 0012, FIG. 4)

  The screw-type lid structure disclosed in Patent Document 1 requires the lid member to be twisted once or twice when the lid member is attached or detached. Further, the pull-up type lid structure shown in Patent Document 2 has a quick operation, but since the mouthpiece cap is elastically engaged with the mouthpiece, a normal liquid container having no mouthpiece, That is, it cannot be applied to a lid structure in which a lid cap is directly fitted to the outlet of the liquid container. It is also possible to omit the mouthpiece and adopt a structure in which the mouthpiece cap is directly fitted to the mouthpiece main body, but the engagement between the two is due to the elastic deformation of the engagement ribs, There is a risk of easy removal by pulling up the mouthpiece cap. In addition, in order to prevent the lid member from easily coming off due to an unexpected impact applied from the outside, as in Patent Document 3, the lid member is locked by a lock member provided on the container body. When the lock structure breaks down, it is inconvenient because it is necessary to replace a part of the container body (shoulder member etc.). In addition, when the lock member is disposed in the vicinity of the drinking mouth (outlet), there is a possibility that the mouth is attached to the drinking mouth and becomes an obstacle when drinking the internal beverage.

  Therefore, the present invention is a pull-up type lid structure suitable for a normal liquid container having no mouthpiece, and can quickly attach and detach the lid member, and has a lid lock structure and the lock structure. It is an object of the present invention to provide a device that can easily cope with a failure of the device.

  In order to solve the above problems, the present invention relates to a lid member 6 that is detachably fitted to the plug body 4 and a plug member 4 provided on the lid member 6 as shown in FIG. 2A. It is assumed that the liquid container has a lid structure including an detachable engaging means 15 and a lid packing 16 that is attached to the lid member 6 and seals the outlet 5 ′ of the stopper 4.

  In the present invention, the lid member 6 is engaged with a lid cap 12 having a cylindrical portion 17 fitted on a portion including the outflow port 5 ′, and an outer periphery of the cylindrical portion 17 of the lid cap 12 so as to be movable up and down. And a combination of a spring 14 interposed between the lid cap 12 and the lid ring 13.

  The engagement means 15 is disposed on the outer peripheral portion of the engagement hole 22 provided in the cylindrical portion 17 of the lid cap 12, and the regulation rib 39 facing the engagement means 15 is provided on the inner peripheral surface of the lid ring 13. A disengagement space 44 is provided below the regulating rib 39, and the engaging means 15 in contact with the regulating rib 39 is engaged with the outer periphery of the plug body 4 through the engaging hole 22.

  Lid lock means for detachably coupling a part of the lid member 6 and the other part of the lid member 6 engaged with the outlet 5 ′ via the engagement means 15 is provided, When the lid ring 13 is moved upward by an external operation in a state where the lock by the lid lock means is released, the engagement means 15 faces the engagement release space 44 and engages with the plug body 4. It is to be released.

  A part of the lid member 6 is the lid ring 13, the other part of the lid member 6 engaged with the plug 4 is the lid cap 12, and the lid locking means is the lid ring. 13 and the cap cap 12 can be provided.

  In the lid structure having the above configuration, in a normal state, the lid member 6 is fitted to the plug body 4, the outlet 5 ′ is sealed by the lid packing 16, and a part of the engaging means 15 is the outlet member 5. The regulating rib 39 on the inner peripheral surface of the lid ring 13 is brought into contact with and locked by the engaging means. As a result, the lid member 6 closes and seals the outlet 5 ′ of the plug 4.

  In addition, a part of the lid member 6 (for example, the lid ring 13) and another part of the lid member 6 (for example, the lid cap 12) engaged with the plug body 4 via the engaging means 15 are engaged. By providing the structure provided with the lid locking means for detachably coupling, the former (for example, the lid ring 13) is made to act on the plug body 4 by operating the lid locking means, and the latter (for example, the lid cap 12). ) Can be indirectly locked.

  As described above, according to the present invention, when the outlet of the plug body is opened, the engagement means is disengaged by grasping the lid ring and lifting it slightly, and the lid ring is still grasped. The outlet can be opened by pulling up the entire lid member. Further, when closing the outlet, when the lid member is fitted to the outlet member and pushed down, the engaging means is pushed inward by the regulating rib, and is engaged with the outlet portion and locked. Thus, any operation of opening and closing the lid member does not involve a screw operation, and the opening and closing operation can be quickly performed only by the operation in the vertical direction.

  In addition, the lid lock structure is not related to the container body, and has a structure in which a part of the lid member is indirectly locked to the stopper via the other part of the lid member. Can be dealt with by replacing only the lid member regardless of the container body. Further, the product can be developed by using the lid member as a common part of liquid containers of other specifications.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

The liquid container which is a target of each embodiment including the first embodiment is a portable pot as shown in FIGS. 1 to 3. This pot is a container body 1 composed of a vacuum double container 1a and a shoulder member 2 fixed to the upper end opening thereof, and is screwed to the shoulder member 2, and a stopper packing 3 (FIG. 2A) is formed in the opening of the container body 1. And the lid member 6 fitted to the plug body 4 and the like.

  As shown in FIG. 2E, the plug body 4 includes an outlet member 5, a plug skirt portion 7 that is screwed to the screw portion 2 a of the shoulder member 2, and a plug that covers the upper surface portion of the plug skirt portion 7. And a cover 11. A hole 7a is provided at an eccentric position of the plug skirt portion 7, and a hole 11a of the same diameter of the plug cover 11 is forcibly fitted into the hole 7a so that the plug skirt portion 7 and the plug cover 11 are integrated. It becomes. A detent projection 35 is provided on the inner peripheral surface of the hole 11 a of the stopper cover 11.

  The outlet member 5 is inserted from the side of the hole 7a of the plug skirt portion 7, and the packing 5a attached to the outlet port member 5 is brought into close contact with the hole 7a of the plug skirt portion 7 so as to be sealed. Further, an anti-rotation groove 35 'is formed in the vertical direction above the packing 5a, and a step portion 5b is provided below the packing 5a. The anti-rotation groove 35 'is engaged with the anti-rotation protrusion 35, and the outlet member 5 is positioned in the circumferential direction (see FIG. 6B). Further, the stepped portion 5b engages with the lower end portion of the hole 7a, so that the outlet member 5 is prevented from coming out upward.

  An outlet 5 ′ is provided at the upper end of the outlet member 5, and an air vent hole 10 is provided at an eccentric position inside the outlet 5 ′. Further, the stopper packing 3 is mounted on the outer periphery of the lower end of the outlet member 5, and the stopper packing 3 is in close contact with the inner surface of the opening of the container body 1.

  An engagement protrusion 9 is formed on the outer peripheral surface of the outlet member 5 protruding upward from the hole 11a of the plug cover 11, and an engagement having a groove bottom having a smaller diameter at the bottom of the engagement protrusion 9 is provided. A groove 9 ′ is provided (see FIGS. 2A to 2C). A guide surface 8 having a small diameter is provided on the outer diameter surface of the lower portion of the engagement groove 9 ′, which is the same as or smaller than the maximum diameter of the engagement protrusion 9. As will be described later, the guide surface 8 substantially contacts the cylindrical portion 17 of the lid cap 12 when the lid member 6 is covered, and holds the posture of the lid member 6.

  As shown in FIG. 3, the lid member 6 for opening and closing the outlet 5 ′ includes a lid cap 12, a lid ring 13 fitted to the outer periphery thereof, a spring 14 mounted between them, and engaging means. 15 and lid packing 16 (see FIG. 2A).

  The lid cap 12 is formed by integrally providing a top plate 18 having a larger diameter at the upper end of the cylindrical portion 17 and an outward collar portion 19 at the lower end of the cylindrical portion 17. Flat surfaces 17a (see FIGS. 3 and 4B) are formed at four locations on the outer periphery of the cylindrical portion 17. A pair of left and right ribs 21 and 21 are provided in a range extending from the lower ends of the left and right side edges forming each flat surface 17a to the middle. The lower end of each rib 21 reaches the outward collar portion 19. An outward flange portion 19 between the ribs 21 and 21 is cut away to form an open portion 20. The size of the open portion 20 is limited by a limiting rib 40 protruding outward from the lower end of the cylindrical portion 17.

  An engaging hole 22 (see FIG. 2B) is provided in the flat surface 17a between the pair of ribs 21 and 21 so as to penetrate the inner and outer surfaces.

  A number of reinforcing ribs 23 (see FIG. 3) are provided on the lower surface of the top plate 18. Further, on the top surface of the top plate 18, a string attachment portion 24 is provided so as to be offset from the periphery thereof, and the string 26 is inserted into the attachment hole 25. The other end of the string 26 is attached to a lower string attaching part 24 'provided in the stopper skirt part 7 (see FIG. 1). A lock receiving portion 27 that is opened in a radially outwardly concave shape is provided on the peripheral end surface of the string attaching portion 24, and a lock member 43 described later is engaged with the lock receiving portion 27. The lower string attaching portion 24 ′ may be provided on the stopper cover 11 or the shoulder member 2.

  A packing mounting portion 28 made of a concentric cylinder having a smaller diameter than the cylindrical portion 17 is provided at the center of the lower surface of the top plate 18, and the lid packing 16 is mounted on the mounting portion 28. The lid packing 16 has a seal portion 29 bent outward at the upper end portion thereof, and a knob portion 31 is provided at the center portion of the lower end. This knob portion 31 is provided for convenience when replacing the lid packing 16.

  As shown in FIG. 3, the engagement means 15 is provided at a lower part at four positions of a rounded ring 32 having a slightly larger diameter than the outer diameter of the cylindrical portion 17 and a circumferentially equidistant position of the rounded ring 32. A bending portion 34 that extends inward and slightly curved inward, and a hook 33 provided at the lower end of the bending portion 34. Each hook 33 is bent obliquely upward and inward from the lower end of the bending portion 34 to form a hook inner end portion 33a, and is bent obliquely downward and outward from the lower end of the bending portion 34 so that the hook outer end portion 33b is bent. It is formed.

  The engaging means 15 expands the cutout ring 32 to fit the outer peripheral surface of the cylindrical portion 17. The cutout ring 32 is engaged with and supported by the upper end of the rib 21 to position the engaging means 15 in the vertical direction (see FIG. 4A). Further, each hook 33 is disposed between the pair of ribs 21 so that positioning in the circumferential direction is performed. Each hook 33 is inserted into the engagement hole 22 from the outer peripheral surface thereof. In a normal state, the hook inner end portion 33 a protrudes from the inner peripheral surface of the lid cap 12, and the hook outer end portion 33 b is the outer periphery of the lid cap 12. Protrudes into the surface (see FIG. 2B). Further, the bending portion 34 abuts on the flat surface 17a of the cylindrical portion 17 (see FIG. 4B), and the engagement means 15 is positioned in the radial direction.

  As shown in FIG. 4B, the inner diameter of the cutout ring 32 is slightly larger than the outer diameter of the cylindrical portion 17 (see the diameter difference S in FIG. 4), that is, the upper end of the bending portion 34, that is, This is because the position of the bending fulcrum is determined outside the cylindrical portion 17. As shown in the figure, since the surface of the cylindrical portion 17 facing the bending portion 34 is a flat surface 17a, the distance S ′ between the circular ring 32 and the portion facing the flat surface 17a is the diameter described above. It is larger than the difference S. By providing such an interval S ′, the bending portion 34 can be given a required curvature.

  The outward flange portion 19 closes the gap between the cylindrical portion 17 and the lid ring 13 (see FIG. 2A) and prevents foreign matter from entering. Further, the opening 20 due to the notch of the outward flange portion 19 between the pair of ribs 21 is useful for draining the cleaning water that has entered the inside of the lid member 6. The opening portion 20 is limited to a necessary minimum size by the limiting rib 40 to prevent entry of foreign matter from the outside.

  As shown in FIG. 3, the lid ring 13 is formed such that the upper half is slightly larger in diameter than the lower half, the outer circumferential stepped portion due to the difference in diameter is a finger hook portion 37, and the inner circumferential stepped portion is a spring receiving portion. 38. In addition, it replaces with the structure formed with the level | step difference part by a diameter difference, and the finger-hanging part 37 can be formed also by providing anti-slip | skid parts, such as a knurling, on the outer peripheral surface of the same diameter.

  Further, on the inner peripheral surface of the small-diameter portion of the lid ring 13, U-shaped restriction ribs 39 opened upward are provided at four equal positions, and small protrusions 41 are provided at two centrally symmetric positions. . An attachment portion 42 is provided on the outer peripheral surface of the large diameter portion, and a lock member 43 is attached to the attachment portion 42 so as to be rotatable in the vertical direction. In the state of FIG. 2 in which the lid member 6 is fitted to the plug body 4, the upper end of the standing lock member 43 is engaged with the lock receiving portion 27 described above, and the lid ring 13 is indirectly connected via the lid cap 12. Coupled to the plug 4. Thereby, even if some external force acts on the lid ring 13, the upward movement is prevented, and the lid member 6 is not opened. The locking member 43 constitutes “locking means” according to claim 1 of the claims, the lid ring 13 constitutes “a part of the lid member 6”, and the lid cap 12 constitutes “the other part of the lid member 6”. .

  The lid ring 13 houses the spring 14 on the inner peripheral surface thereof, supports the lower end thereof on the spring receiving portion 38, and is positioned in the circumferential direction so that the regulating rib 39 fits between the pair of ribs 21. While being engaged, the engagement means 15 is fitted to the outer periphery of the cylindrical portion 17 of the lid cap 12 that has been fitted. By the fitting, the upper end of the spring 14 hits the lower surface of the top plate 18 and is compressed. With the upper end of the lid ring 13 aligned with the upper surface of the top plate 18 of the lid cap 12, the small protrusion 41 is engaged with the upper surface of the collar portion 19, and the lid cap 12 and the lid ring 13 are integrated to form a lid member. 6 is configured.

  At this time, as shown in FIGS. 5A and 5B, the hook outer end portion 33b of each hook 33 abuts on the regulating rib 39, the movement of the hook 33 to the outer surface side is regulated, and the hook 33 is locked. . Further, an engagement release space 44 in which the hook outer end portion 33b of the hook 33 falls is formed between the lower end of the restriction rib 39 and the inner peripheral surface of the lower end portion of the lid ring 13 (see FIG. 5A). In this case, the lid ring 13 is at a relatively low position with respect to the hook 33.

  In the state of FIG. 6A in which the lid member 6 is fitted to the outlet member 5 of the plug body 4, when the lid ring 13 is at a relatively low position with respect to the hook 33, the outer end portion of the hook 33b hits the regulating rib 39 and the outward movement is regulated, and the hook 33 is locked. Moreover, when it exists in a relatively high position (refer the dashed-dotted line of Fig.6 (a)), the hook outer end part 33b will oppose the said engagement release space 44, and will be in a lock release state.

  As shown in FIG. 7A, the lower surface of the engagement protrusion 9 of the plug body 4 with which the hook inner end portion 33a is engaged is formed from the engagement groove 9 '(that is, from below). The upper surface of the engaging protrusion 9 is an inclined surface 9b opposite to the inclined surface 9a.

  As shown in FIG. 2C, when the lid member 6 is fitted and closed to the outlet member 5, the cylindrical portion 17 is in a stage earlier in time than the hook 33 is engaged with the engaging protrusion 9. The upper end of the guide surface 8 and the upper end of the guide surface 8 overlap each other (L in the figure indicates the overlap amount). For this reason, at the beginning of the fitting of the lid member 6 to the outlet member 5, the lower end of the cylindrical portion 17 is fitted to the upper end of the guide surface 8 at an earlier stage than the hook 33 is engaged with the engaging protrusion 9. And the attitude | position of the cover member 6 is stabilized by the fitting. Since the engagement of the hook 33 to the engagement protrusion 9 starts after the posture of the lid member 6 is stabilized, the engagement start of the plurality of hooks 33 is simultaneously engaged without causing a time delay. For this reason, the inconvenience of a so-called semi-engagement state is solved.

  The outer diameter of the guide surface 8 is normally set equal to the outer diameter of the engaging protrusion 9, but a large surface pressure is formed between the guide surface 8 and the guide surface 8 having a large contact area with the cylindrical portion 17. May occur, and the cylindrical portion 17 may not be smoothly fitted. For this reason, it is desirable that the outer diameter of the guide surface 8 be formed smaller than the outer diameter of the engaging protrusion 9 by a required fitting gap.

  Further, in a state where the lid member 6 closes the outlet 5 ′, a part of the lid member 6 (for example, the lower end of the cylindrical portion 17 of the lid ring 13 or the lid cap 12) and a part of the plug body 4 (for example, It is desirable to provide a predetermined clearance (δ or δ ′) in the vertical direction between the plug covers 11) as shown in FIG. 2D. This is because the lid member 6 can be smoothly attached to and detached from the plug body 4 under various conditions (for example, insufficient fitting between the plug skirt portion 7 and the plug cover 11 and variations in component dimensions).

  The lid structure of the first embodiment is as described above, and the operation thereof will be described next.

  In the state of FIG. 2A in which the lid member 6 is fitted to the stopper 4 and the outlet 5 ′ is closed, the outlet 5 ′ of the stopper 4 is sealed by the seal portion 29 of the lid packing 16. The lid member 6 is engaged with the engagement protrusion 9 by the hook 33 of the engagement means 15, and the hook 33 is locked by the restriction rib 39 (see FIG. 7A). The lid ring 13 of the lid member 6 is locked by the lock member 43 engaging with the lock receiving portion 27 of the lid cap 12.

  Here, when the lid member 6 is removed and the outlet 5 ′ is opened, the lock member 43 is removed from the lock receiving portion 27 to unlock the lid ring 13, and then the finger hooking portion 37 on the outer peripheral surface of the lid ring 13 is moved. Grip and lift the lid ring 13 slightly against the spring force of the spring 14. Then, the lid ring 13 rises from the solid line state of FIG. 6A as shown by a two-dot chain line, and the hook outer end portion 33b of the hook 33 faces the engagement release space 44 (see FIG. 7B). . As a result, the hook 33 is released from the regulating rib 39 and the lock is released. Subsequently, by pulling up the entire lid member 6, the lid member 6 is removed and the outflow port 5 'is opened. The removed lid member 6 is supported on the stopper skirt portion 7 by a string 26 (see FIG. 1). By tilting the container body 1, the liquid flows out from the open outlet 5 '.

  Next, when the lid member 6 is fitted to the outlet 5 ′ in the open state to close the outlet 5 ′, the lid ring 13 is hooked by the spring 14 as shown in FIG. The hook 33 itself is bent when the hook inner end 33a hits the inclined surface 9b and rides on the engaging protrusion 9 in a state of being pushed down below 33. When the engagement ridge 9 is overcome, the hook inner end portion 33a engages with the inclined surface 9a and is locked (see FIG. 8B). At the same time, the seal portion 29 of the lid packing 16 seals the outlet 5 and is closed.

  As described above, the lid member 6 is opened and closed by being pulled up and closed by being pushed down, and is not twisted. Therefore, the string 26 attached to the lid member 6 is not twisted.

  When the hook 33 is formed to be relatively thick as shown in the modified example shown in FIG. 9 and has no bending property, the lid ring 13 is gripped in advance when the lid member 6 is fitted. The hook outer end portion 33b is made to face the disengagement space 44, and the bending protrusion 34 is bent while the bending protrusion 34 is bent.

  When disassembling the plug body 4 for cleaning, the lid member 6 is first removed from the plug body 4, and then the plug skirt portion 7 is removed from the screw portion 2 a of the shoulder member 2. Next, the outlet member 5 is extracted from the holes 11 a and 7 a by pushing the outlet 5 ′ of the outlet member 5 downward from above. Since the plug skirt portion 7 and the plug cover 11 are forcibly fitted to each other, they cannot be disassembled. Thereby, as shown to FIG. 2E, it can be decomposed | disassembled into 2 parts of the assembly of the outlet member 5, the plug skirt part 7, and the plug cover 11. FIG.

  Examples 2 to 8 below show other examples of the lid locking means of the lid member 6. In the lid locking means of the second embodiment shown in FIG. 10, the lock member 52 is attached to the attachment portion 42 of the lid ring 13 by the hinge shaft 50 so as to be rotatable in the vertical direction, and the upper end convex portion 53 of the lock member 52 is covered with the lid. The cap 12 is engaged with a recess forming the lock receiving portion 27 of the cap 12. By engaging the lock member 52 with the lock receiving portion 27, the lid ring 13 is indirectly coupled and locked to the outlet member 5 that is a part of the plug body 4 via the lid cap 12.

  11 (a) and 11 (b), the lid locking means of the third embodiment attaches a disk-shaped locking piece 59 to the eccentric position of the top plate 18 of the lid cap 12 by an eccentric shaft 58, and rotates the rotation. A part of the lock piece 59 is engaged with the upper peripheral edge of the lid ring 13 at a fixed position. That is, since the lock piece 59 is attached so as to be movable in the radial direction while rotating eccentrically, it engages with the upper surface of the lid ring 13 when it moves to the outermost radial direction (see the solid line in the figure). . As a result, the lid ring 13 is indirectly locked to the plug body 4 via the lid cap 12. Note that the lock is released by rotating the lock piece 59 eccentrically in a two-dot chain line state.

  In the lid lock structure of the fourth embodiment shown in FIGS. 12A to 12C, the lock piece 59 is slidably fitted in a radial dovetail groove 60 provided in the top plate 18 of the lid cap 12, and the diameter is changed. When it moves to the outer end in the direction, its one end engages with the upper edge of the lid ring 13 (see the two-dot chain line in the figure). Thereby, the lid ring 13 is indirectly locked to the plug body 4 through the lid cap 12. Further, the lock is released by sliding inward as shown by the solid line.

  In the lid lock structure of the fifth embodiment shown in FIG. 13, a lock member 54 is rotatably attached to an attachment portion 42 provided on the stopper cover 11, and a lock receiving portion 27 is provided on the outer peripheral surface of the lid ring 13 correspondingly. It is provided. That is, the lid ring 13 is directly locked to the stopper cover 11 which is a part of the stopper body 4 by the lock member 54.

  In the lock structure of the sixth embodiment shown in FIGS. 14 (a) and 14 (b), the projecting pieces 55 projecting outward at the lower end of the lid ring 13 are provided at two centrally symmetrical positions. The stopper cover 11 is provided with two lock portions 56 through which the protruding pieces 55 enter and exit in the horizontal direction. When the entire lid member 6 is rotated in a horizontal plane, the projecting piece 55 is fitted into the lock portion 56 to be locked (see the solid line in FIG. 5B). Moreover, if it rotates in the opposite direction, the protrusion 55 will come out of the lock part 56 (refer the dashed-two dotted line of the (b) figure), and a lock | rock will be cancelled | released. That is, the lid member 6 is directly locked to the plug cover 11 which is a part of the plug body 4 by the lid lock means (the projecting piece 55 and the lock portion 56).

  In the seventh embodiment shown in FIGS. 15A to 15C, an outlet member in which the cylindrical portion 17 of the lid cap 12 fitted around the outlet member 5 is a part of the plug body 4. 5 is directly locked. That is, the circumferential groove 61 is provided on the outer peripheral surface of the outlet member 5, and the longitudinal grooves 62 are provided downward from the circumferential groove 61 at two centrally symmetric positions of the circumferential groove 61. A lock piece 63 is formed on the inner surface of the cylindrical portion 17 with a height that matches the circumferential groove 61 and a width that fits into the vertical groove 62. The cylindrical portion 17 is directly locked to the outlet member 5 by aligning the lock piece 63 with the longitudinal groove 62 and rotating the lock piece 63 by a required angle.

  In Example 8 shown in FIGS. 16 (a) to 16 (c), a circumferential groove 61 and a longitudinal groove 62 are provided on the lid ring 13, and a lock piece 63 is provided on the outer peripheral surface of the outlet member 5. The cylindrical portion 17 is directly locked to the outlet member 5 by the same locking action as in Example 7.

The front view which shows a part of pot of Example 1 Longitudinal front view Partial enlarged sectional view of FIG. 2A 2A is a partially enlarged sectional view when the lid is fitted in FIG. 2A. Partial enlarged sectional view of FIG. 2A Exploded perspective view of plug member 1 is an exploded perspective view of a lid member according to Embodiment 1. FIG. (A) Front view of a part of the lid same as above, (b) Cross-sectional view taken along line bb in (a). (A) Sectional view of lid member same as above, (b) Sectional view along line cc in (a) figure (A) Sectional drawing of the closed state of a lid member same as the above, (b) Sectional drawing of the dd line | wire of (a) figure (A) Cross-sectional view of the hook portion of the above, in the locked state, (b) Cross-sectional view of the lock portion, as above. (A) Sectional view of hook part at the time of starting lid member fitting same as above, (b) Sectional view of hook part in the state of lid member fitting same as the above Sectional view of the hook part at the start of lid member fitting when the hook is not bendable Partial sectional view of Example 2 (A) Perspective view of Example 3, (b) (a) Partial sectional view of the figure (A) Perspective view of Example 4, (b) Partial sectional view of (a) figure, (c) Cross sectional view of other part of figure (a) Partial sectional view of Example 5 (A) Partial sectional view of Example 6, (b) Plan view of (a) figure (A) Partial cross-sectional plan view of Example 7, (b) (a) longitudinal sectional view, (c) (a) longitudinal sectional view of the other part of the figure (A) Partial cross-sectional plan view of Example 8, (b) (a) longitudinal sectional view, (c) (a) longitudinal sectional view of the other part of the figure

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container body 1a Vacuum double container 2 Shoulder member 2a Screw part 3 Plug packing 4 Plug body 5 Outlet member 5a Packing 5b Step part 5 'Outlet 6 Lid member 7 Plug skirt part 7a Hole 8 Guide surface 9 Engagement protrusion 9 'engagement groove 10 air vent hole 11 plug cover 11a hole 12 lid cap 13 lid ring 14 spring 15 engagement means 16 lid packing 17 cylindrical portion 17a flat surface 18 top plate 19 outward flange portion 20 opening portion 21 rib 22 engagement Hole 23 Rib 24 String attachment portion 24 'Lower string attachment portion 25 Attachment hole 26 String 27 Lock receiving portion 28 Packing attachment portion 29 Sealing portion 31 Knob portion 32 Round ring 33 Hook 33a Hook inner end portion 33b Hook outer end portion 34 Bending Portion 35 Anti-rotation protrusion 35 'Anti-rotation groove 37 Finger hook portion 38 Spring receiving portion 39 Restriction rib 40 Restriction rib 41 Small protrusion 42 Mounting portion 43 Lock member 4 disengagement space 45 rib 52 the locking member 53 protrusion 54 locking member 55 projecting piece 56 locking portion 57 cutout portion 58 the eccentric shaft 59 locking piece 60 dovetail 61 peripheral groove 62 circumferential groove 63 locking piece

Claims (6)

A lid member (6) detachably fitted to the plug body (4), an engagement means (15) provided on the lid member (6) and detachable from the plug body (4); In the lid structure of the liquid container comprising the lid packing (16) attached to the lid member (6) and sealing the outlet (5 ′) of the plug (4),
The lid member (6) includes a lid cap (12) having a cylindrical portion (17) fitted to a portion including the outflow port (5 ′), and the cylindrical portion (17) of the lid cap (12). A lid ring (13) engaged with the outer periphery of the lid cap (12) and a spring (14) interposed between the lid cap (12) and the lid ring (13). The engagement means (15) is disposed on the outer peripheral portion of the engagement hole (22) provided in the cylindrical portion (17), and is opposed to the engagement means (15) on the inner peripheral surface of the lid ring (13). The restriction rib (39) and the engagement release space (44) are provided below the restriction rib (39), and the engagement means (15) in contact with the restriction rib (39) is connected to the engagement hole (22). ) Is engaged with the outer periphery of the plug body (4), a part of the lid member (6), and the engaging means Lid lock means is provided for releasably coupling with the other part of the lid member (6) engaged with the plug body (4) via (15), and the lock by the lid lock means is released. When the lid ring (13) is moved upward by an external operation, the engagement means (15) faces the disengagement space (44) and engages with the outlet member (5). To be released ,
The engagement means (15) is formed by a hook (33) provided at a lower end of a bending part (34) extending downward from the cutout ring (32), and the hook (33) is formed by the outlet member ( hook inner end that engages the 5) (33a) and the lid structure of the liquid material container you; and a hook outer end portion contacting regulating the rib (39) (33b).   A part of the lid member (6) is the lid ring (13), and the other part of the lid member (6) engaged with the plug (4) is the lid cap (12). The lid structure for a liquid container according to claim 1, wherein the lid locking means is provided on one of the lid ring (13) and the lid cap (12). The lid locking means is constituted by a lock member (43) rotatably attached to the lid ring (13), and a lock receiving portion (27) for receiving the lock member (43) in the lid cap (12). the lid structure of the liquid container according to claim 1 or 2, characterized in that provided. A string attaching part (24) is provided in a part of the lid member (6), and there is a slack between the string attaching part (24) and the container body (1) or a part integral with the container body (1). The lid structure for a liquid container according to any one of claims 1 to 3 , wherein the lid structure (26) is tied. The lid structure for a liquid container according to claim 4 , wherein the lock receiving portion (27) is provided by using a part of the string attaching portion (24). The lid lock means is constituted by a lock piece (59) attached to the upper surface of the lid cap (12) so as to be movable in the radial direction, and the lid cap is moved when the lock piece (59) moves radially outward. 3. The lid structure for a liquid container according to claim 1, wherein the lid structure is engaged with an upper end surface of (13).

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