JPH0451746Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a liquid container, and more particularly, to a liquid container whose lid can be attached in a one-touch manner or with similar simplicity, and is used in, for example, a hand-held pot.

(Prior art) Liquid containers such as pots have traditionally had screw-type lids or lids with locking mechanisms to keep them closed, which are convenient for supplying, draining, and pouring liquids and do not cause liquid leakage. It is used.

(Problems to be solved by the invention) The screw-type lid requires a large amount of rotation to attach and remove the lid, making it inconvenient to use. In addition, a lid with a locking mechanism tends to be complicated and expensive in structure, and failures may occur due to damage to the locking member or spring.
In particular, none of the above-mentioned lids are suitable for handy type pots that are desired to be simple in structure and operation and can be provided at low cost.

On the other hand, Japanese Utility Model Application No. 60-139737 discloses a liquid container having a lid that is attached without rotation and can be removed with a small amount of rotation.

This product has an inner cap that can be attached to and removed from the container mouth without rotation, in other words, a fitting structure that cannot rotate, and an inner cap that is rotatably fitted to the outside of the inner cap to engage the inner cap with the container mouth. Since it has a double structure in combination with an outer cap that maintains the state and prevents the cap from coming off or releases it, the structure is complicated and expensive.

Further, although the inner cap and the outer cap can always rotate relative to each other, it is necessary to take care not to cause the outer cap to rotate when attaching it to the mouth of the container, making the attachment operation unstable.

Further, when the outer cap is in the rotational position relative to the inner cap to release the retainer, the inner cap can only be attached to the container opening in a non-removal state by returning the outer cap to the rotational position in which the retainer is released.

SUMMARY OF THE PRESENT EMBODIMENT An object of the present invention is to provide a liquid container which is simple in structure and can be easily and reliably attached and detached without anxiety.

(Means for solving the problems) In order to achieve the above objectives, the present invention
An engaging protrusion is provided on the lid that is attached to the container mouth, and this engaging protrusion is attached to the opposing container mouth with a vertical groove whose upper end is open and faces in the axial direction, and a vertical groove that faces in the circumferential direction from the lower end of this vertical groove. A horizontal groove is formed continuously, and an auxiliary vertical groove is provided at the container mouth, the upper end of which is open and the lower end of which extends close to the horizontal groove so that the engaging protrusion can go in and out, and on the boundary wall between the horizontal groove and the auxiliary vertical groove. This is characterized in that the engaging protrusion engages by elastic crossing over.

(Function) According to the above structure of the present invention, when the engaging protrusion on the lid is aligned with the auxiliary vertical groove of the opposing container opening, the engaging protrusion extends from the opening at the upper end of the auxiliary vertical groove to the container opening. The lid can be moved in the axial direction of the container, and the lid is guided by the engagement between the engaging protrusion and the auxiliary longitudinal groove, so that the lid can be smoothly inserted into the container opening in the axial direction without any element of rotational movement. You can cover it.

At the final stage of putting the lid on, the engaging protrusion reaches the boundary wall between the auxiliary vertical groove and the horizontal groove and interferes with it, but the engaging protrusion elastically overcomes the boundary wall toward the horizontal groove. Since they are engaged, the lid can be placed in a mounted state in which it cannot be removed in the axial direction.

At this time, the engagement between the engagement protrusion and the boundary wall is achieved by moving the elastic engagement protrusion toward the vertical groove side of the horizontal groove with the rotation of the lid, thereby increasing the engagement distance in the engaged state. The lid can then be removed by simply pulling out the engaging protrusion through the longitudinal groove by moving the container opening of the lid in the axial direction.

(Example) Reference example (Figs. 1 to 5) As shown in Fig. 3, a vacuum double bottle 1 is housed in an exterior case 3 with a handle 2, and a container body 4 is
A case of a hand-held pot with a simple structure equipped with a lid 6 with a liquid pouring passage 5 is shown. Vessel 4
A synthetic resin shoulder member 7 is force-fitted 8 and attached to the upper end of a metal exterior case 3 to form a container mouth 9 of the container body 4 communicating with the mouth of the bottle 1. The handle 2 is integrally formed with the shoulder member 7 so that its upper end is continuous, and its lower end is screwed into the exterior case 3 from the inside with a screw 10. A synthetic resin bottom plate 13 is screwed from below into a synthetic resin screw ring 12 that is fitted into the inner periphery of the lower end of the outer case 3 and received by the hem wrap 11, and a bottle receiver 14 integrated with this bottom plate 13 The bottom portion of the bottle 1 around the tip 15 is pushed up, and the mouth of the bottle 1 is pressed into contact with the container mouth 9 formed by the shoulder member 7 via the seal packing 16.

The packing 16 forms a toilet seat part 17 on the inner periphery thereof, which is located above the mouth of the bottle 1 and extends over the inner periphery of the container mouth 9. The lid 6 is made of synthetic resin and has a cap-like shape with a peripheral wall 18 that fits around the outer periphery of the container opening 9.
Plug part 1 having a water stop edge 19a that stops water when seated on
9 is formed at the center of the inner top surface of the lid 6. Lid 6
A hollow chamber 20 is formed in the ceiling of the hollow chamber 2.
0 and the stopper portion 19 are formed with partial liquid discharge passages 21 and 22 forming the liquid discharge passage 5. The content liquid pouring passage 22 on the side of the hollow chamber 20 is formed on the tip side of a valve rod 23 provided so as to pass vertically through the lid 6 on a diametrical line. The valve rod 23 is connected to the content liquid pouring path 22
The tip opening 22a of the lid 6 faces the liquid inlet 25 with the flap valve 24 so as to be movable forward and backward, and the push operation part 26 at the rear end protrudes above the handle 2.
The spring 27 causes the opening 22a to close to the flap valve 24.
is biased to remain in a retracted state.

A projecting piece 22c provided vertically at the front edge of the liquid receiving port 22b of the liquid dispensing passage 22 on the valve rod 23 side is engaged with the opening 20a of the liquid dispensing passage 21 on the plug part 19 side to the hollow chamber 20. The forward and backward strokes of the valve rod 23 are regulated by the contact of the protruding piece 22c with the front and rear walls of the opening 20a. Opening 20 of plug portion 19
A projecting wall 28 is integrally formed on the rear edge of the valve rod 23 side and enters into the content liquid spouting passage 22 in a state that partitions the front and back, so that the spouted content liquid that has entered the content liquid spouting passage 22 is This prevents the liquid from leaking from the protruding wall 28 into the spouting path 22 of the mouth.

By the way, this reference plan adopts the following configuration for easy attachment and detachment of the lid 6.

To explain this, short helicoidal protrusions 30 as seen in FIGS. 1, 2, and 3 are integrally formed at four equally spaced positions on the circumference of the inner circumference of the peripheral wall 18 of the lid 6. On the other hand, the helicoidal protrusion 30 on the outer periphery of the container opening 9 allows the helicoidal protrusion 30 to ride over the rounded surface 31a from the upper end side of the container opening 9 in the direction of arrow a due to the elasticity of the peripheral wall 18, and the helicoidal protrusion 30 that has climbed over the container opening. 9 is integrally formed with a locking projection 31 having a steep locking surface 31b that prevents the locking member from coming off toward the upper end side. When the helicoidal protrusion 30 engaged with the locking protrusion 31 moves toward the one end side of the locking protrusion 31, the elasticity of the surrounding wall 18 causes it to move outward. A guide slope 32 in the circumferential direction is formed to push it away and remove it from the locking protrusion 31. Further, the locking protrusion 31 has a locking surface 31
b extends from the overpassing portion of the helicoidal protrusion 30 to the other end side, and the entire locking surface 31b locks the lid 6 by moving the helicoidal protrusion 30 engaged thereto toward the other end. It is formed to have an inclination that attracts it toward the vessel body 4 through the helicoidal protrusion 30. The extension of the locking ridge 31 is widened, as seen in FIG. 1, to ensure more secure engagement with the helicoidal ridge 30.

A recess 33 is formed on the forming portion of the locking protrusion 31 to indicate a position where the helicoidal protrusion 30 engages with the locking protrusion 31 and to enable the engagement.
A side wall of the concave portion 33 on one end side of the locking protrusion 31 is inclined in both the circumferential direction and the axial direction, and serves as a guide slope 34 that is continuous with the guide slope 32, and the helicoidal protrusion 30 is connected to the locking protrusion 31. It is designed to guide the user to the helicoidal ridge crossing section. Recess 3
The side wall opposite 3 has a vertical locking surface 3 parallel to the axis.
5, and the locking protrusion 31 of the helicoidal protrusion 30 is brought into contact with the protrusion 36 formed near the top of the helicoidal protrusion 30 forming portion of the lid 6.
This prevents the helicoid from engaging excessively. Note that the vertical locking surface 35 is defined as a guide slope 37 shown by a phantom line in FIG.
The helicoidal protrusion 30 may be guided to a portion of the locking protrusion 31 that rides over the helicoidal protrusion.

A protrusion 38 is integrally formed on the upper end of the handle 2 and is used for wrapping and securing a hanging cord (not shown) for a tea bag dipped in the container body 4.

As shown in Figure 1, insert the removed lid 6 into the container opening 9.
To attach the lid 6 to the container, first, the helicoidal protrusion 30 on the lid 6 side is opposed to the helicoidal protrusion riding over part of the locking protrusion 31 as shown in Fig. 1, and then the lid 6 is attached to the container as shown in Fig. 2. Put it on mouth 9. Lid 6 in the state shown in Figure 2.
When pressed against the container opening 9, the helicoidal protrusion 30 on the lid 6 side is pressed from above against the rounded surface 31a of the locking protrusion 31, and is pushed outward with elastic deformation of the peripheral wall 18, and the rounded surface 31a slides down in the direction a, and when it comes off the rounded surface 31a, due to the elastic return of the peripheral wall 18 to its initial state, it slides under the locking protrusion 31 as shown by the imaginary line in FIG. 2 and engages with the locking surface 31b. match.

As a result, even if an attempt is made to remove the lid 6 straight upward, the helicoidal protrusion 30 will not be removed from the locking protrusion 3.
By being hooked to the locking surface 31b of No. 1 without a sliding surface, it is reliably prevented from coming off, and the lid is in a temporary state of being attached without coming off.

When the lid 6 is slightly rotated clockwise in this state, the helicoidal protrusion 30 is moved in the direction of arrow b from the initial engagement position with the locking protrusion 31. At this time, the locking protrusion 31 has an inclined locking surface 31b.
The lid 6 is further drawn toward the container body 4 through the helicoidal protrusion 30, and the valve seat portion 1 of the water cut edge 19a is
7 more reliably. This crimping is sufficient to provide the necessary seal between the container opening 9 and the stopper 19. Note that a ventilation passage 40 passing through the seal is provided at the rear of the plug portion 19.

To pour out the liquid in the state shown in FIGS. 3 and 4 with the lid 6 attached, grasp and lift the container 4 with the handle 2, and press the valve lever 23 with the thumb of the gripping hand.
When pushed out, the tip opening 22a of the content liquid spouting path 22 pushes open the flap valve 24 and protrudes as shown by the phantom line in FIG.
2 communicate with each other, allowing the content liquid to be poured out. If the container body 4 is tilted in this state, the liquid content can be naturally poured out and injected.

When the valve lever 23 is released from being pushed by the thumb, the valve lever 23 is returned to the solid line position by the spring 27, and communication between the liquid content pouring paths 21 and 22 is cut off. Therefore, if the valve rod 23 is returned to its original position while the container body 4 is in an inclined liquid injection state, the liquid injection will immediately stop, which is convenient.

To remove the lid 6, rotate the lid 6 counterclockwise, and the helicoidal protrusion 30 will move from the imaginary line position in FIG. Since it rides on and is pushed outward, the engagement with the locking protrusion 31 is disengaged, and the lid 6 can be easily removed from the container opening 9, and the structure is simpler than that of the conventional example.

Moreover, to attach or remove the lid, two-way operations are required: movement in the axial direction of the container opening and rotation around this axis.Therefore, this is no different from the conventional example, and further improvements are needed. desired.

The present invention satisfies these demands, and examples will be shown below.

Embodiment 1 (FIGS. 6 and 7) As seen in the figures, a stopper lid 51 that fits into the container opening 9 is adopted, and the container opening 9 has a beak-shaped liquid inlet protruding from one side thereof. 52 have been established. The lid 51 has an annular seal packing 65 on its outer periphery that seats on the dish-shaped lip 53 of the container mouth 9 where the liquid filling port 52 extends, and the dish-shaped mouth rim 53 and the liquid filling port 52 inside.
A liquid content pouring path 54 with an on-off valve 55 is provided leading to. The on-off valve 55 is opened and closed via its cam portion 56a by sliding operation of a slide operation member 56 that is exposed on the top surface of the operation head 51a of the stopper lid 51.

On both sides of the outer periphery of the neck of the stopper lid 51, engagement pawls 58, which are movably held by internal appropriate ribs 57, are biased in the projecting direction by springs 59, and form elastic engagement protrusions. . On the other hand, on the inner periphery of the container opening 9 facing the engaging claw 58 as the elastic engaging protrusion on its protruding side, the upper end is open to the container opening 9 and a longitudinal direction facing in the axial direction of the container opening 9 is provided. The groove 62a and a horizontal groove 62b extending in the circumferential direction from the lower end of the vertical groove 62a to the inner periphery of the container mouth 9 are continuous, and an elastic engagement protrusion is formed through the open portion at the upper end of the vertical groove 62a and the horizontal groove 62b.
A hook-shaped locking groove 62 that can be moved in and out along the container opening 9 is provided, and the upper end is open to the container mouth 9 and the lower end extends close to the lateral groove 62b so that the engagement claw 58, which is the elastic engagement protrusion, can go in and out. A boundary wall 61 between the horizontal groove 62b and the auxiliary vertical groove 60 is provided.
and at least one of the engaging claws 58.
They are formed into shapes 58a and 61b that engage with each other by elastically riding over each other from the auxiliary vertical groove side 60 to the horizontal groove 62b side.

The engaging claw 58 provided on the lid 51 has a spring 59 that prevents the engagement claw 58 from protruding toward the inner periphery of the opposing container opening 9.
This engaging pawl 58 is held by the auxiliary vertical groove 6 provided on the inner periphery of the container opening 9.
When positioned at 0, the engaging claw 58 can enter the auxiliary vertical groove 60 in the axial direction of the container opening 9 from the open portion at its upper end while remaining protruded.
The lid 51 is guided by the engagement between the engaging claw 58 and the auxiliary longitudinal groove 60, and can be smoothly placed over the container opening 9 in the axial direction without any movement in the rotational direction.

At the final stage of putting the lid 51 on, the engaging claw 58
reaches the boundary wall 61 between the auxiliary vertical groove 60 and the horizontal groove 62b of the hook-shaped locking groove 62 and interferes with it.
is guided to elastically overcome the boundary wall 61 and is fitted into and engaged with the lateral groove 62b;
Since the lid 51 is caught in the opposite direction and is prevented from getting over, the lid 51 can be placed in a mounted state in which it cannot be removed in the axial direction.

At this time, the engaging claw 58 is engaged with the boundary wall 61 by moving the engaging claw 58 into the lateral groove 61 with the rotation of the lid 51.
By moving the lid 51 toward the vertical groove 62a side, it is removed regardless of the size of the hooking allowance in the non-return state, and then by moving the lid 51 in the axial direction of the container opening 9, the engaging claw 58 is removed. The lid 51 can be removed by simply pulling it out through the vertical groove 62a.

A convex portion 63 and a recess 64 on the circumferential surface are provided between the cap lid 51 and the container mouth 9 to determine the attachment direction of the cap cap 51, and the outer end of the content liquid pouring path 54 is provided. Opening 54a and beak-shaped liquid injection port 5 of container mouth 9
2 are directly facing each other, allowing the contents to flow out smoothly. The convex portion 63 and the concave portion 64 are configured to have play in the circumferential direction to allow the rotation for removing the stopper lid 51.

Embodiment 2 (FIG. 8) As seen in the figure, an engaging claw 58 is provided on the main body of the stopper lid 51 with a resin spring piece 71. The operation is the same as in the second embodiment.

Embodiment 3 (FIG. 9) As seen in the figure, the engaging claw 58 itself is formed with a resin spring portion 81 and is installed inside the stopper lid 51. This also has the same effect as the second embodiment.
In the case of this embodiment, even if the resin spring portion 81 were to break, it can be easily repaired by replacing the parts.

(Effects of the invention) According to the invention, when the engaging protrusion on the lid is aligned with the auxiliary longitudinal groove of the opposing container opening, the engaging protrusion is positioned at its upper end with respect to the auxiliary longitudinal groove. It becomes possible to enter the container mouth in the axial direction from the opening part, and the lid is guided by the engagement between the engaging protrusion and the auxiliary longitudinal groove, so that the lid can be inserted into the container mouth in the axial direction without any element of rotational movement. It can be put on smoothly, and at the final stage of putting the lid on, the engaging protrusion reaches the boundary wall between the auxiliary vertical groove and the horizontal groove and interferes with it. By simply fitting the lid onto the container opening in the axial direction, the lid can be placed in a state where it cannot be removed in the axial direction, and the installation operation is easy. is simpler than before.

At this time, the engagement between the engagement protrusion and the boundary wall is achieved by moving the engagement protrusion toward the vertical groove side of the horizontal groove with the rotation of the lid. After that, the lid can be removed simply by moving the container opening of the lid in the axial direction and pulling out the engaging protrusion through the vertical groove. The removal of the lid can be easily accomplished by a conventional operation involving rotation of the lid about the axis, while ensuring firm engagement by sufficient engagement with the lid.

In summary, according to the present invention, the attachment of the lid is simpler than before, it is possible to achieve a secure attachment without complicating the removal of the lid, and the structure is simple and costs can be reduced. can.

[Brief explanation of the drawing]

Fig. 1 is a partial perspective view showing a reference example of the present invention;
Figure 2 is an enlarged cross-sectional view of the main part, Figure 3 is a side view of the half section, and Figure 4 is a cross-sectional view of the half part at a different angle from Figure 3. 5 is a plan view of a half part, FIG. 6 is a partial perspective view of the first embodiment of the present invention, FIG. 7 is a partial sectional view, and FIG. 8 is a partial plan view of the first embodiment of the present invention. FIG. 9 is a cross-sectional view of a portion of the fourth embodiment. 4... Container body, 9... Container mouth, 51... Lid, 58
...Engaging claw (engaging protrusion), 59... Spring, 58a,
61b...Return check shape, 60...Auxiliary vertical groove, 61...
... Boundary wall, 62 ... Hook-shaped locking groove, 62a ... Vertical groove, 62b ... Horizontal groove, 71 ... Resin spring piece, 81
...Resin spring part.

Claims (1)

[Scope of utility model registration request] An engaging protrusion is provided on the lid that is attached to the container mouth, and this engaging protrusion is attached to the opposing container mouth with a vertical groove whose upper end is open and faces in the axial direction, and a vertical groove that faces in the circumferential direction from the lower end of this vertical groove. A horizontal groove is formed continuously, and an auxiliary vertical groove is provided at the container mouth, the upper end of which is open and the lower end of which extends close to the horizontal groove so that the engaging protrusion can go in and out, and on the boundary wall between the horizontal groove and the auxiliary vertical groove. A liquid container characterized in that the engaging protrusion is engaged by elastic crossing.