JPH0370961B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid storage container such as a thermos flask, which has a top lid rotatably attached to an exterior body and is provided with a handle for carrying.

[Conventional technology]

This type of liquid storage container has a top lid that can be rotated to open and close.
A bracket-shaped part for a bearing is integrally formed on the outer periphery of the upper end of the exterior body, and the shaft part of the upper cover is attached to the bracket-shaped part (for example, in the case of
(See Publication No. 45778).

A hinge is used in the part that rotatably supports the top cover (for example, Japanese Utility Model Publication No. 59-26933).

The structure described above is generally known.

However, in the former case, the upper cover, which is supported by a bearing bracket that is formed to protrude outward from the upper edge of the outer casing, protrudes radially outward from the body of the outer casing. However, there was a problem in that the top lid itself easily came into contact with other objects, and the durability of the shaft portion was likely to deteriorate due to external force applied to the shaft portion through the top lid.

In addition, in the latter case, a part of the hinge that supports the top cover, specifically its pivot point, protrudes outward from the outer circumferential surface of the top cover, and the pivot point can be hooked onto other objects. In the past, there was a risk of deformation and damage. Furthermore, there was a problem in that the protruding pivot portion made the overall appearance of the liquid container unsightly.

Therefore, conventionally, like the structure above,
In order to prevent the shaft, hinges, etc. of the top lid from protruding outward from the outer periphery of the outer casing and the top lid and coming into contact with other objects, a relatively large handle is installed on the outer periphery side of the outer casing. Attempts have also been made to attach the top cover and arrange it in such a way that even if the top cover or the shaft of the top cover protrudes outward beyond the outer periphery of the exterior body, this shaft is unlikely to come into contact with other objects. (For example, Utility Model Publication No. 48-58562 and Utility Model Publication No. 47-1983)
(See Publication No. 9733).

[Problem to be solved by the invention]

As mentioned above, if the shaft is placed inward from the outer periphery of the top cover or exterior body, it is advantageous in that it can avoid the effects of contact with other objects, but the handle for carrying is While fixed on the outer side of the body,
In addition, since it is provided in a state that protrudes laterally outward from the outer peripheral surface of the exterior body, this large handle itself tends to come into contact with other objects, such as getting caught on the user's clothes, and there is a problem that it is difficult to prevent liquids from leaking. Since the stored heavy exterior body is carried while being supported at a side position, a new problem arises in that the whole container is heavy and inconvenient to carry.

In addition, as shown in the prior art described above, some devices have a handle that can be rotated in an arc so that they can be carried in a hanging format. On the other hand, since the handle is attached by a combination of a shaft and a retaining member such as a bolt or nut, the handle must be attached to the exterior body before the exterior body is assembled. A new problem arises in that the exterior body and handle are transported separately for convenience of transportation, and it is difficult to carry out retrofit work such as attaching the handle to the exterior body on site.

The present invention was devised in view of the above-mentioned circumstances, and its purpose is to make it convenient to carry by devising the structure of the top cover itself, the structural part that supports the top cover, and the structure of the carrying handle. While adopting a handle structure that can be hung and held, it is possible to prevent both the shaft portion of the upper lid and the handle from protruding outward from the outer circumferential side of the exterior body, and even after the assembly of the exterior body is completed. The object of the present invention is to provide a liquid storage container which is useful both in terms of ease of use and ease of manufacturing and processing by allowing a handle to be easily attached.

[Means to solve the problem]

The characteristic structure of the liquid storage container according to the present invention is that the liquid container is housed inside a cylindrical exterior body, a top cover is attached to the upper part of the exterior body by a shaft portion so as to be able to rotate freely in an arc, and a handle for carrying is attached to the exterior body. In the liquid storage container provided on the upper part of the liquid storage container, the outer circumferential surface of the upper lid is formed to be located inward than the outer circumferential surface of the outer casing, and a pivot portion of the upper lid with respect to the outer casing is provided with a forming a recessed portion that enters into the center of the lid, the shaft portion of the upper lid being inserted into the recessed portion and positioned closer to the center of the lid than the outline of the outer peripheral surface of the upper lid; a gripping position formed in a shape that follows the upper outer circumferential surface of the exterior body, and attached to the upper part of the exterior body so as to be rotatable in an arc, such that the grip portion is located above the upper lid with a gripping space;
configured to be able to freely change its posture to a stored posture outward from the outer circumferential surface of the upper lid and along the outer circumferential surface of the exterior body,
Furthermore, the attachment portion of the handle to the exterior body is attached to the grip portion so as to fit into pivot holes formed at two opposing positions in the radial direction of the exterior body, and into each of the pivot holes. A supporting shaft portion is integrally molded to protrude, and a handle in the retracted position is placed on the outer circumferential surface of the upper part of the exterior body to restrict its downward rotation. The main feature is that a stepped portion is formed to guide the movement of the support shaft portion in the insertion direction in the placed position, and its functions and effects are as follows.

[Effect]

(i) In the case of this liquid storage container, the upper lid is
The shaft portion, which is formed in a shape that is located inside the outer shell of the cylindrical exterior body in a plan view and rotatably supports the upper lid, is actively inserted into Since it is located closer to the center of the lid than the outline of the shape of the exterior body and the top lid,
The shaft part that supports the top cover is prevented from protruding beyond the outline of the top cover and the exterior body, and the top cover is also prevented from protruding outside the exterior body during operation within the range of swing associated with opening and closing operations. can be avoided.

(ii) The handle is formed in a shape that follows the outer circumferential surface of the upper part of the exterior body, and is attached to the upper part of the exterior body so as to be rotatable in an arc, and furthermore, the grip portion is larger than the upper lid. The gripping position is located with a gripping space above, and the storage position is stored along the outer circumferential surface of the upper part of the exterior body, so that the position can be changed freely, so it can be carried in a hanging manner. In addition, this handle also hardly protrudes outward from the side of the exterior body.

(iii) The mounting portion of the handle is formed integrally with the grip portion into pivot holes formed at two opposite positions in the radial direction of the exterior body, and is fitted into each of the pivot holes. Since the handle is configured with a protruding support shaft, the handle can be attached to the case body by opening the handle slightly in the radial direction of the exterior body and simply moving the support shaft facing the pivot hole in the insertion direction. It can be easily installed by simply pushing it in, that is, by working from the outside of the case body.

(iv) A handle in the retracted position is placed on the outer peripheral surface of the upper part of the exterior body to restrict its downward rotation, and in this placed position, the handle is not inserted into the support shaft. Since a stepped portion is formed to guide the movement in the direction, the handle can be installed while being guided by the stepped portion in a stable state with the handle positioned in a predetermined retracted posture.

〔Effect of the invention〕

(a) Due to the effects of (i) and (ii) above, it is easy to reliably prevent the shaft or handle of the top lid from getting caught on other objects. Therefore, there is little risk that the liquid storage container will topple over, and even if it does, there will be no inconveniences such as the top lid coming into contact with another object and external force being applied to the shaft via the top lid. There is also less risk of the shaft colliding with other objects and being damaged.

(b) Due to the effects of (iii) and (iv) above, even though it uses a hanging type handle that is convenient to carry, even after the exterior body has been assembled, it can be easily accessed from the outside without the need to disassemble the exterior body. It becomes possible to attach the handle, and the attachment can be easily done using the stepped portion for maintaining the retracted posture of the handle as a guide, which facilitates manufacturing and processing.

(c) From the effects of (ii) and (iv) above, it is also possible to judge whether the attachment condition of the handle to the exterior body is good or bad by visually observing the attachment attitude of the handle to the outer peripheral surface of the exterior body in a predetermined storage position. It can be done easily.

〔Example〕

Next, embodiments of the present invention will be described based on the drawings.

As shown in FIGS. 1 to 7, a container body 2 is placed in an internal space formed by an exterior body A equipped with a liquid injection pipe 1 in a downwardly inclined position and a top lid B that can be rotated to open and close.
A vacuum glass liquid container (hereinafter referred to as a medium bottle) 2 having a mouth portion 2b having a smaller diameter than the maximum body diameter of the container body 2a connected to the upper part of the container body 2a is used to store the liquid in this medium bottle 2. An inner stopper unit C includes a first water conduit 4 that guides the liquid to the inner stopper 3 and a second water guide pipe 5 that guides the liquid from the inner stopper 3 to the liquid injection pipe 1; By pumping air, the medium bottle 2
The main part of a manual bellows pump (which is an example of an air pump) P that sends the liquid inside to the outside of the exterior body A through the inner stopper unit C and the liquid injection pipe 1 is disposed to accommodate the liquid of the present invention. A thermos flask is an example of a container.

The exterior body A includes a lower opening member 6 having a through hole 6a for inserting and holding the liquid injection tube 1 so that it can be pulled out only upwardly and an annular recess 6b opening downward, and the lower opening member 6. a cylindrical case 7 that is elastically fitted and fixed to the outside, in other words, forcefully fitted, and the outer circumference of the case 7 covers the outer circumference of the liquid injection pipe 1. It is constructed by attaching a panel 8 which is approximately triangular in side view with screws 9.

The upper lid B is formed in a shape located within the outer shell of the cylindrical exterior body A in a plan view, and
It is rotatably supported by the upper lid B and a shaft portion X located closer to the center of the lid than the outline of the exterior body A. That is, this upper lid B has a recessed portion 50 formed at the pivot point to the exterior body A, which enters into the center of the lid in plan view, and the shaft portion
is inserted into the recessed portion 50, so that the entire shaft portion X is positioned closer to the center of the lid than the outline of the outer peripheral surface of the upper lid B.

More specifically, the upper lid B is connected to the exterior body A.
With respect to the U-shaped attachment portion 6c of the lower opening member 6, which is located within the outer shell in a plan view,
An outer cover 11 that is vertically swingable and rotatable around the shaft part X located in the recessed part 50, that is, the jagged pin 10 (see FIG. 5) arranged in a horizontal position between the mounting parts 6c. and an inner cover 12 that is fitted and held in the outer cover 11 with an appropriate space formed therein. Therefore, the shaft portion X does not protrude outward.
Furthermore, a locking member 13 is provided between the covers 11 and 12, which can be freely engaged with the locked piece 6d of the lower mouth member 6 from above and can be freely operated to release the engagement in a horizontal or substantially horizontal direction. and a coil spring 14 that urges the lock member 13 to move in the engagement direction.

The bellows pump P is constructed as follows.

a donut-shaped elastic bellows 16 forming a pump chamber 15 in the annular recess 6b of the lower mouth member 6;
And an annular support member 1 whose upper and lower sides are attached in an airtight manner by ultrasonic welding means, respectively.
A bellows cover 19 having a substantially U-shaped cross section and containing the bellows covers 7 and 18 is fixed thereto, and is inserted and held from below into the through hole of the lower opening member 6 at one location in the circumferential direction of the upper support member 17. The cylindrical bodies 17a are arranged in series, and two through holes formed in the lower support member 18, which are displaced by 180 degrees in the circumferential direction, can be freely opened and closed, and coil springs 20 are attached to the lower support member 18.
The hook valve 21 is biased to the open state via the
is inserted and locked.

Further, the pair of hook valves 21 and 2 are attached to a bracket 22 connected to the bellows cover 19.
1 and a lower support member 18, a Y-shaped operating rod 23 for retracting the bellows 16 is pivotally mounted so as to be vertically swingable, and a rectangular shaft-like operating rod 23 horizontally suspended on the triangular panel 8 The shaft 24 has an arm 25 that can push down the other end of the operating rod 23 and an operating lever 2.
6 is installed.

The triangular panel 8 has a lock state in which it is fitted onto the operating shaft 24 and prevents the operating lever 26 from rotating to the liquid pouring operating position and a unlocked state in which it is separated from the operating shaft 24 by sliding the triangular panel 8. A lock operation tool 27 that can be freely switched between the two is attached.

The inner cover 12 of the upper lid B has an air flow path 2 formed in the inner plug 3 when the upper lid B is closed.
A gasket 29 is provided which is elastically pressed against the upper surface of the inner stopper 3 in a state where it communicates with the upper part of the inner stopper 8, and a gasket 29 which is in communication with the upper surface of the cylindrical body 17a of the upper support member 17. A gasket 30 is attached to the inner cover 12 to be elastically pressed against the gasket 30, and a cover body 31 is provided on the inner cover 12 to form an air supply passage D from the pump chamber 15 to the medium bottle 2 via the gaskets 29 and 30. It is installed.

The cover body 31 is integrally formed with a cylindrical portion 31a for forming a communication path E leading to the outside air side, and a passage of the gasket 30 is provided between the cylindrical portion 31a and the gasket 30, which can be freely opened and closed. a valve 32, a gasket 33 that can freely open and close the communication path E of the cylindrical portion 31a, and a coil spring 3 that biases the valve 32 to a closed position via the gasket 33.
4.

In the pump chamber 15 of the bellows pump P, one end of the valve rod 36, which is urged back in the direction of extension of the elastic bellows 16 by the coil spring 20, is fitted into the hook valve 21, and the cylindrical body of the upper support member 17 is inserted into the hook valve 21. A cylindrical connecting member 38 is provided between the valve 37, which can freely open and close the distal end of the valve 17a, and the other end of the valve rod 36, and the cylindrical connecting member 38 engages the valve rod 37 and the valve rod 36 so that they can move relatively close to each other.
Coil spring 3 that urges 7 and 36 to move in the direction of separation.
9 is interposed.

A bellows 16, a bellows cover 19, a lower support member 18, a hook valve 21, and an operating rod 23 constitute the main parts of such a bellows pump P.
is largely inserted into the space S formed between the outer circumferential surface from the mouth 2b of the medium bottle 2 to the shoulder and the inner circumferential surface of the case 7.

In this way, by utilizing the relatively large annular shoulder space S that exists outside the mouth of the inner bottle 2, and arranging the main part of the bellows pump P in a large manner, stability is achieved, which is an important element for a thermos bottle. This allows the overall structure to be made as low in bulk as possible while improving performance.

The lower mouth member 6 has a stepped portion 6e formed to be recessed inward, and serves as a positioning portion for the upper support member 17 of the bellows pump P. At two locations, each displaced by 90 degrees with respect to 1, there is a support shaft 40 of the handle 40, which has a substantially semicircular shape and is large enough to fit into the recess formed by the step 6e.
a, 40a are force-fitted and fixed so as to be rotatable only, and then this handle 40 is rotatably rotatable in an arc and is brought into contact with one end surface of the stepped portion 6e.
A grip position in which B is located with a grip space above the upper lid B, and a storage position in which B is stored flush with the extended outer circumferential surface of the exterior body A within the recess formed by the stepped portion 6e. Each position is configured for each posture.

Protrusions 40c are formed at two locations on the support shafts 40a, 40a of the handle 40, which are displaced by 180 degrees in the circumferential direction, and through holes 6f, 6f formed in the stepped portion 6e of the lower mouth member 6 are formed. At the periphery and at the location corresponding to the protrusion 40c of the handle 40 in a posture other than the grasping posture (see FIG. 7), specifically, in the retracted posture as shown in FIG. A retaining piece 6g is formed that allows the protrusion 40c to fit in only when a pushing operation force is applied.
In the retracted position, the support shafts 40a, 40a of the handle 40 are force-fitted and fixed so that they can only rotate freely.

By attaching the handle 40 in this way, even if the handle 40 is lifted while the locking member 13 of the top cover B is being unlocked, the exterior body A will not tilt, and the exterior body will not tilt when the top cover B is open. Unexpected splashing of hot water caused by sudden tilting of body A can be prevented. Moreover, in the lifted state where the greatest impact is applied, the protrusion 40c of the handle 40
... comes into contact with the periphery of the strong through hole 6f that is displaced by approximately 90 degrees in the circumferential direction with respect to the retaining piece 6g on the lower mouth member 6 side, so it has a high retaining effect against various impact forces and is safe. can be further improved.

When pouring out the stored liquid from the thermos configured in this manner, when the operating lever 26 is pushed down with a fingertip, the operating rod 23 is moved in conjunction with this.
swings up and down, and after closing the hook valve 21, the bellows 16 is compressed via the lower support member 18. At the same time as the bellows 16 is compressed, the valve rod 36 and the valve 37 are pushed up, and the valve 32 is pushed up via the valve 37, and the gasket 33 closes the passage E of the cylindrical portion 31a.
is closed. Therefore, by the upward compression operation of the bellows 16, pressurized air is discharged into the medium bottle 2 through the air supply passage D in a closed state, and pressurizes the liquid level of the stored liquid. As a result, the stored liquid is poured out of the case 7 via the inner stopper unit C and the liquid injection pipe 1.

Furthermore, when the pushing force on the operating lever 26 is released, the bellows 16, hook valve 21, operating rod 23, and operating lever 26 are automatically returned to their original positions by the energy stored in the coil springs 20, 39. The hook valve 21 is normally open, and the upper connection port of the pump chamber 15 is normally closed by the valve 37. Therefore, air can freely enter into the pump chamber 15, and even if the entire container falls over unexpectedly, the liquid in the medium bottle 2 will flow through the air supply passage D to the pump chamber 1.
5, and the vapor inside the medium bottle 2 can escape to the outside through the air supply path D and the communication path E. This makes it possible to prevent unexpected pouring from the liquid injection tube 1.

Incidentally, since the gasket 33 is also forcibly returned to its original position by the elastic biasing force of the coil spring 34, it is ensured that the gasket 33 adheres to the cylindrical portion 31a of the cover body 31 and closes the communication path E. It can be prevented.

[Another example]

FIG. 8 shows another structure of the shaft part X that rotatably supports the upper lid B, in which a pair of recesses 6h, 6h are formed in the lower mouth member 6 at appropriate intervals in the circumferential direction, A pair of plate-shaped attachment parts 12 formed on the inner cover 12 of the upper lid B in both the recesses 6h, 6h.
With a and 12a inserted, both 6h and 6
h and 12a, 12a are pivotally connected by one jagged pin 41, that is, the shaft portion X.

Incidentally, although reference numerals are written in the claims section for convenient comparison with the drawings, the present invention is not limited to the structure shown in the accompanying drawings.

[Brief explanation of drawings]

1 to 7 show a first embodiment of a liquid storage container according to the present invention, in which FIG. 1 is a partially cutaway overall side view, FIG. 2 is a partially cutaway front view of the main part, and FIG. 3 is a plan view, FIG. 4 is an overall side view, FIG. 5 is a cross-sectional view showing the top cover mounting structure, and FIGS. 6 and 7 are cross-sectional views showing the handle mounting structure. FIG. 8 is a sectional view of essential parts showing the second embodiment. A...Exterior body, B...Top lid, X...Shaft part, 40
……handle.

Claims (1)

[Claims] 1. A liquid container 2 is housed inside a cylindrical exterior body A,
The upper cover B is attached to the upper part of the exterior body A by the shaft part X so as to be rotatable in an arc, and a handle 40 for carrying is attached.
In the liquid storage container, the outer circumferential surface of the upper lid B is formed to be located inward than the outer circumferential surface of the outer package A, and
A recessed portion 50 that enters into the center of the lid in a plan view is formed at the pivot point of the upper lid B to the exterior body A,
The shaft portion X of the upper lid B is inserted into the recessed portion 50 and positioned closer to the center of the lid than the outline of the outer peripheral surface of the upper lid B, and the handle 40 is placed on the upper outer peripheral surface of the outer casing A. The grip portion 40b is formed into a shape that conforms to the shape and is attached to the upper part of the exterior body A so as to be rotatable in an arc.
is configured to be able to freely change its posture between a grip position in which the grip space is located above the top cover B and a storage position in which the grip position is located outside the outer circumferential surface of the top cover B and along the outer circumferential surface of the exterior body A. , furthermore, a mounting portion of the handle 40 to the exterior body A is formed at two opposing positions in the radial direction of the exterior body A, and a pivot hole 6f;
A supporting shaft portion 40a is integrally molded to protrude from the grip portion 40b so as to fit into each of the pivot holes 6f, and a supporting shaft portion 40a is formed integrally with the grip portion 40b so as to fit into each of the pivot holes 6f. A stepped portion 6e is formed to restrict the downward rotation of the handle 40 by placing it thereon, and to guide the movement of the support shaft portion 40a in the insertion direction in this placed position. A liquid storage container characterized by: