JPH021490B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a liquid container that includes an upper lid and a main body, and has a mouth portion smaller in diameter than the maximum body diameter of the container main body, The present invention relates to a liquid storage container with an air pump provided with an air pump for discharging the liquid out of the case of the main body.

As an example of this type of liquid container, there have been various types of thermos flasks (for example,
Publication No. 17560, Publication No. 17559 of Publication No. 1758-17559, Publication No. 17559 of Publication No. 17560, Publication No. 17559 of Publication No.
-47091, etc., and all of these known devices had the configurations described in the following [] and [], as shown in FIG. 24, for example.

[] The main body of the air pump P is disposed at a position higher than the opening height of the mouth portion 2b of the liquid container 2.

[] An operating tool 100 for the air pump P is provided on the upper lid B side.

In such a conventional thermos flask, the main body of the air pump P is positioned to protrude significantly upwards than the mouth of the liquid container, which not only raises the center of gravity but also increases the bulk of the air pump P. Since the operation tool 100 of the pump P is provided on the upper lid B side at the top of the container, the point of effort for pump operation is also raised, which not only makes it difficult to operate the pump on a table or the like, but also makes it difficult to operate the pump. This causes a decrease in stability over time. Moreover, the main body A
Although the top cover B is allowed to open and close, the top cover B
In order to reliably interlock the operation tool 100 and the pump body during the closing movement of the pump body, high manufacturing accuracy and assembly accuracy are required not only for the body A but also for the upper lid B, the air pump P, and the container 2. However, it had the disadvantage of requiring advanced technology and a lot of effort to manufacture and assemble.

Furthermore, in addition to the above-mentioned thermos bottles, also in atomizers in which the mouth of the liquid container is configured to have a smaller diameter than the maximum body diameter, the container mouth of the suction pipe in the vertical direction passing through the mouth of the container is It seems that providing the pump device at an upper position that projects upward from the pump has been used as common sense as a matter of course in order to reduce the bulk of the entire pump device including the suction pipe.

Apart from the above-mentioned conventional technology, if you are only considering installing an air pump at a lower level of the liquid storage container,
For example, as shown in Japanese Utility Model Application No. 50-9875,
There is also a method of placing the air pump below the bottom of the liquid container, but this only reverses the vertical positions of the air pump and the liquid container, and does not reduce the overall volume.Furthermore, the center of gravity becomes higher, making it even more bulky. The inconvenience of poor stability cannot be avoided.

The present invention has an object to improve the drawbacks of each of the above-mentioned prior art techniques.

A characteristic configuration of the liquid storage container with an air pump according to the present invention, which was taken to achieve such an object, is that the container includes an upper lid and a main body, and a mouth portion having a diameter smaller than the maximum body diameter of the container main body is provided in the main body. In the liquid storage container with an air pump, the air pump includes a liquid container having a liquid container and an air pump for discharging the liquid in the liquid container to the outside of the case of the main body.
The bellows is comprised of an annular bellows configured to be able to expand and contract vertically, the bellows is housed in a bellows cover, and the bellows cover forms a case that forms the mouth of the liquid container and the body of the main body, and a shoulder of the main body. It is attached to the shoulder member by being positioned within an annular space formed between the shoulder member and the shoulder member.

The effects of the above characteristic configuration are as follows.

In other words, when considering the shape of the liquid container,
If the opening area of the container is equal to the maximum diameter of the container body, the sealing lid will also be large, making handling the whole thing inconvenient. It may be advantageous to make the mouth of the valve as small as possible to reduce heat exchange through the stopper attached to the mouth. Furthermore, if the mouth of the container is high in the vertical direction, the length of the contact surface between the stopper and the container in the internal and external directions may be increased to improve the sealing performance, or if the mouth part of the container is insulated, it may be necessary to It has the advantage of suppressing heat exchange.

The present invention focuses on the unique shape of the mouth of the container, which is adopted in order to solve the above-mentioned disadvantages of containers with a wide mouth area or to satisfy the required functions. By utilizing the space that exists due to the shape, that is, the relatively large shoulder space that exists between the outer circumferential surface of the container near the mouth and the inner circumferential wall of the case, the air pump is placed in a large space, compared to conventional methods. In addition to being able to be constructed with a low bulk, the center of gravity can also be lowered, making it possible to reduce the overall size and improve stability on a table or the like.

Furthermore, in addition to the effective use of the shoulder space as described above, the shoulder member can also be effectively used as a mounting portion for the air pump, which has the advantage of simplifying the component configuration.

In addition, in the past, a special member was required to install and secure the air pump in the shoulder space in advance, and moreover, the user was forced to perform inconvenient work in the narrow shoulder space. In the present invention, since the bellows cover can be attached to the shoulder member and the shoulder member can be attached in a state where the bellows cover is assembled into a unit, the air pump assembly operation can be simplified.

Embodiments of the present invention will be described below based on the drawings.

As shown in FIGS. 1 to 3, a container main body 2a is placed in an internal space formed by a main body A having a liquid injection pipe 1 in a downwardly inclined position and a top lid B that can be opened and closed by swinging.
A vacuum glass liquid container (hereinafter referred to as a medium bottle) 2 having a mouth 2b having a diameter smaller than the maximum body diameter of the container body 2a connected to the upper part of the container body 2a, and this medium bottle 2.
an inner stopper unit C comprising a first water conduit 4 for guiding the liquid in the inner bottle to the inner stopper 3 and a second water conduit 5 for guiding the liquid from the inner stopper 3 to the liquid filling pipe 1, and the inner bottle 2; The main part of a manual bellows pump (an example of an air pump) P that pumps air into the inner bottle 2 to send the liquid inside the inner bottle 2 out of the main body A through the inner stopper unit C and the liquid injection pipe 1. are arranged to form a thermos flask with an air pump.

The main body A is elastically connected to a shoulder 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 6 that opens downward. The case 7 has a cylindrical case 7 that is fixed by being fitted onto the outside, in other words, it is fixed by a forced fit, and on the outer circumferential surface of the case 7, there is provided a substantially triangular shaped pot in side view that covers the outer circumference of the liquid injection tube 1. It is constructed by attaching a liquid port cover 8 with screws 9.

The upper lid B has a horizontal pin 1 with respect to the shoulder member 6.
The outer cover 11 is vertically swingable around 0, and the inner cover 13 is fitted and held on the outer cover 11 with an appropriate space formed therebetween. can be freely engaged with the locked piece 6c of the shoulder member 6 from above, and
The lock member 14 is provided with a lock member 14 that can be engaged and disengaged horizontally or approximately horizontally, and a coil spring 15 that urges the lock member 14 to move in the engagement direction.

The bellows pump P is constructed as follows.

Inside the annular recess 6 of the shoulder member 6, there is a donut-shaped elastic brow 16 forming the pump chamber 12, and annular support members 17 and 18, the upper and lower sides of which are attached in an airtight manner by ultrasonic welding means, respectively. Bellows cover 19 with an almost U-shaped cross section to be installed inside
At one point in the circumferential direction of the upper support member 17, a cylindrical body 17a is inserted and held from below into an elastic cylindrical body 20 which also serves as a packing and is fitted onto the shoulder member 6. At the same time, two through holes are formed in the lower support member 18 at two positions displaced by 180 degrees in the circumferential direction so that the through holes can be freely opened and closed, and are biased into the open state via the coil springs 21. The hook valve 22 is inserted and locked.

Further, the pair of hook valves 22, 2 are attached to a bracket 23 connected to the bellows cover 19.
2 and the lower support member 18, a Y-shaped operating rod 24 for contracting the bellows 16 is pivotally connected to be able to swing up and down, and a connection between the liquid injection pipe 1 and the liquid injection port cover 8 of the main body A is provided. In between, an operating tool 25 is mounted so as to be vertically movable, and includes a protruding piece 25a that can push down the other end of the operating rod 24, and a lever 25b that projects outward through an opening 8a formed in a notch in the spout cover 8. ing.

The inner cover 13 of the upper lid B has an air flow path 2 formed in the inner plug 3 when the upper lid B is closed.
An L-shaped first supply pipe 27 made of an elastic material that also serves as a cap is elastically pressed against the upper surface of the inner stopper 3 while communicating with the upper part of the inner stopper 3, and an L-shaped first supply pipe 27 made of an elastic material is connected to the other end of the first supply pipe 27. , and when the top cover B is closed,
an L-shaped second supply pipe 2 that is in pressure contact with the upper end of the elastic cylindrical body 20 while communicating with the elastic cylindrical body 20;
8.

The liquid pouring port cover 8 has a lock state that projects into the moving path of the operating tool 25 by sliding in the lateral direction and comes into contact with and prevents the operating tool 25 from moving to the liquid pouring operation position. A lock operating tool 29 is attached which can be freely switched to an unlocked state in which the operating tool 25 is retired from the moving path.

The bellows 16, the bellows cover 19, the lower support member 18, the hook valve 22, and the operating rod 2 constitute the main parts of the bellows pump P.
4 is largely inserted into the space formed between the outer circumferential surface of the medium bottle 2 from the mouth 2b to the shoulder and the inner circumferential surface of the case 7.

Further, the cylindrical body 17a of the upper support member 17,
Elastic cylindrical body 20, second supply pipe 28, first supply pipe 2
7. Connect the air supply path D from the air pump P to the medium bottle 2, which includes the air flow path 26 of the medium stopper 3, to the medium bottle 2.
It is formed using a space in the upper lid B located above the bellows pump P without penetrating the bellows pump P.

When pouring out the stored liquid from the thermos configured in this manner, when the lever 25b of the operating tool 25 is pressed down with a fingertip, the operating rod 24 swings up and down in conjunction with this, and the hook valve 22 is closed. After the movement, the bellows 16 is compressed. The air pressurized by the bellows 16 is discharged into the medium bottle 2 through the air supply passage D, 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 of the lever 25b is released, the bellows 16, hook valve 22, operating rod 24, and operating member 25 are automatically returned to their original positions by the energy stored in the coil spring 21.

The hook valve 22 is in a normally open state, and by letting the steam inside the medium bottle 2 escape to the outside through the air supply passage D, the liquid filling pipe for the stored liquid due to the rise in vapor pressure within the medium bottle 2 is removed. This makes it possible to prevent unexpected pouring from 1.

Furthermore, the bellows cover 19 allows the medium bottle 2 to
Damage to the bellows 16 due to fragments at the time of breakage can be prevented. Also, this bellows cover 19
By screwing and fixing the upper support member 17 to the shoulder member 6, the upper support member 17 can be simultaneously tightened and fixed between the two members 19 and 16.

The bellows 16 is composed of a pair of bellows-like membrane bodies 16a and 16b located inside and outside with appropriate spacing.

In the above-mentioned embodiment, the cylindrical body 17a of the upper support member 17 is located at a position displaced by 90 degrees in the circumferential direction with respect to the hook valves 22, 22 and at a position displaced by 180 degrees with respect to the liquid injection pipe 1. However, as shown in FIG. 4, it may be provided at a location corresponding to the upper part of one of the hook valves 22, or it may be provided at a location other than this.

Next, another mounting structure for the operating tool 25 will be explained.

(a) As shown in FIGS. 5 and 6, the operating tool 2 is attached to one side of the liquid injection port cover 8 on the mounting board 30 that is integrally connected to the liquid injection port cover 8.
5 operating lever 25b and locking tool 29 are provided.

Further, on the other side of the mounting board 30 next to the liquid injection port cover 8, a water amount display window 31 for the medium bottle 2 is provided.
has been established.

(b) As shown in FIGS. 7 to 9, operating tools 25 are attached to both left and right sides 8b and 8b of the liquid injection port cover
Operating levers 25b, 25b are provided in a protruding state, and a lock operating tool 29 is provided on the front side surface 8c.

The operating levers 25b, 25b are integrally connected to an operating main body 25A that can be slid vertically relative to the liquid injection port cover 8, and further include:
The operation main body 25A is integrally provided with projecting pieces 25a, 25a that can push down the end of the operation rod 24.

(c) As shown in FIGS. 10 to 12, an operating tool 25 is provided on the front side surface 8c of the liquid injection port cover 8. This operating tool 25 includes an operating main body 25A that is slidable in the vertical direction and is provided with a protrusion 25a that can push down the end of the operating rod 24, and a front surface of the liquid injection port cover 8 with respect to the operating main body 25A. 8c, and an operating lever 25b which is pivotally attached to be able to swing freely between a retracted position located flush with 8c and an operating position pulled forward, and between the operating lever 25b and the liquid injection port cover 8. is provided with a magnet 29a and a magnetic body 29b such as an iron plate, which attract and hold the operating lever 25b in the retracted position.

Therefore, when the operating lever 25b is in the retracted position, the operating tool 25 is moved to the liquid pouring operation position due to the contact between the operating lever 25b and the liquid pouring port cover 8 and the attraction action of the magnet 29a. The operation can be prevented, and by switching the operating lever 25b to the operating position, the operation of the operating tool 25 to the liquid pouring operating position can be permitted. In other words, the operating tool 25
The lever 25b is configured to double as a lock operating tool for switching the operating tool 25 between a locked state that prevents pump operation and an unlocked state that allows pump operation.

In this embodiment, when the operating lever 25b is switched to the retracted position, the operating lever 25b
Although it is configured so that it is flush with the liquid injection port cover 8, it may be configured so that it protrudes slightly outward from the liquid injection port cover 8, or it may be configured so that it extends slightly inward. It may be configured and implemented.

Furthermore, continuous wave-shaped grooves may be formed on the side surface of the operating lever 25b. In this case, there is an advantage that the posture switching operation of the operating lever 25b can be easily performed.

(d) As shown in FIGS. 13 and 14, both left and right sides 8b, 8b and front side 8c of the spout cover 8
There are operation recesses 25c, 25c on the left and right sides.
An operating tool 25 is provided.

Among the above-mentioned embodiments, in the case of embodiments (b) and (c), both operating levers 25b, 25 of the operating tool 25
b or both operation recesses 25c, 25c are operated by sandwiching the fingers of one hand from both the left and right sides, so there is an advantage that the lower body A can be operated in a stable state as if holding the lower body A with both hands. .

In addition, in the case of the embodiment (c), since the lever 25b of the operating tool 25 is configured to double as a lock operating tool, manufacturing and assembly are facilitated by reducing the number of parts due to this dual use. Not only can the lock release operation and the push-down operation to the liquid pouring operation position be performed quickly and easily in a series of operations, but also the operation lever 2 can be removed when not in use.
Since the lever 25b does not protrude outward, there is an advantage that deformation and damage caused by contact of the operating lever 25b with an external object can be well suppressed.

FIGS. 15 and 16 show a modification of the embodiment shown in FIGS. 5 and 6, in which the peripheral portion of the opening 30a of the mounting board 30 for the operation tool 25 is formed into an operating rod in a side view. It is configured in an arc shape around the swing axis X of 24.

Next, the mounting structure of the operating rod 24 will be explained.

(a) As shown in FIGS. 17 and 18, push the knurled pin 41 between the bracket 23 of the bellows cover 19 and the rib 24a of the operating rod 24.

(b) As shown in Figures 19 and 20, the operating rod 2
The ribs 24a of the bellows cover 19 are integrally formed with swing fulcrum protrusions 24b, 24b which can engage and disengage from a groove 23a cut out in the bracket 23 of the bellows cover 19.

This embodiment has the advantage that assembly can be made easier than when using the jagged pins 41.

(c) As shown in Fig. 21, the bellows cover 19
The operating rod 24 mounting bracket 23 is attached to the cylindrical mounting portion 19a of the cylindrical mounting portion 19a.
Fix at step 3.

In this embodiment, since the mounting distance between the bellows cover 19 and the bracket 23 can be freely adjusted by adjusting the tightening amount of the screw 43, each of the shoulder members 6, the bellows cover 19, etc. Ensures that the operating rod 24 is in the correct position regardless of manufacturing or assembly errors in component parts.
It has the advantage of being easy to install.

(d) As shown in FIG. 22, the operating tool 2
5 is integrally formed with an operating rod 24, which is swingably attached to the operating rod 24, and an arc-shaped operation guide plate 46 that slides on the inner surface of the mounting board 30 is connected to the operating rod 24.

(e) As shown in FIG. 23, the mounting board 30
The operating rod 24, on which the operating tool 25 is integrally formed, is swingably attached to a support member 47 extending inward from the support member 47. Arc-shaped operation guide plates 46 are provided in series.

In the case of the above-mentioned embodiments (d) and (e), the presence of the operation guide plate 46 connected to the operation rod 24 allows the pump operation by the operation tool 25 to be performed smoothly without rattling. There are advantages.

<Other Examples> [] The shape of the bellows 16 includes a bellows shape, a bellows shape, etc.
Instead of having a series of donut shapes in plan view, it may be divided into a plurality of parts in plan view, such as a horseshoe shape, or a plurality of small cylindrical bellows may be used. In short, there are various shapes of the bellows 16, and the bellows 16 should be appropriately selected depending on the conditions of use and the like.

[] An electric pump using an actuator such as an electric motor may be used as the air pump P.

Further, the air pump P includes a reciprocating pump, a rotary pump, etc., and the reciprocating pump includes a piston pump, a plunger pump, etc. in addition to the above-mentioned bellows pump.

[] As the hook valve and check valve, one other than the above-mentioned embodiments is used.

[] Move the operating tool 25 of the air pump P to a position of the case 7 that is slightly displaced in the circumferential direction from the liquid injection port cover 8 or 180 degrees from the liquid injection port cover 8.
Installed immediately after the displacement.

[] The operating tool 25 of the air pump P is provided using the space existing at the bottom of the lower body A. According to this embodiment, the position of the point of effort during pump operation becomes extremely low, and there is an advantage that the pump operation can be facilitated and stability can be improved as much as possible.

[Brief explanation of drawings]

1 to 3 show an embodiment of a liquid storage container with an air pump according to the present invention, in which FIG. 1 is a partially cutaway side view, FIG.
The figure is a sectional view taken along the line -- in FIG. 1. Figure 4, Figure 5, Figure 7, Figure 10, Figure 13, Figure 15,
FIGS. 17, 19, and 21 to 23 are perspective views and cross-sectional views showing different embodiments, respectively,
Figure 6 is a front view of the main part in Figure 5, Figures 8 and 9 are a perspective view and longitudinal side view of the main part in Figure 7, and Figures 11 and 12 are the main parts in Figure 10. 14 is a perspective view of the main part of FIG. 13, FIG. 16 is a cross-sectional bottom view of FIG. 15, and FIG.
The figure is a longitudinal sectional front view of the main part of FIG. 17, and FIG. 20 is a longitudinal sectional front view of the main part of FIG. 19. FIG. 24 is a longitudinal sectional side view showing a conventional structure. A...Body, B...Top lid, P...Air pump,
2... Liquid container, 2a... Container body, 2b... Mouth, 6... Shoulder member, 7... Case, 8... Liquid injection port cover, 16... Elastic bellows, 19... Bellows cover, 25 ...Manipulation tool.

Claims (1)

[Claims] 1. Comprising an upper lid B and a main body A, and the main body A
A liquid container 2 having an opening 2b with a smaller diameter than the maximum diameter of the container main body 2a is provided inside, and an air pump P is provided for pouring out the liquid in the liquid container 2 to the outside of the case 7 of the main body A. In the provided liquid storage container with an air pump, the air pump P is composed of an annular bellows 16 configured to be vertically expandable and retractable,
The bellows 16 is housed in a bellows cover 19, and the bellows cover 19 is placed between the mouth 2b of the liquid container 2, the case 7 forming the body of the main body A, and the shoulder member 6 forming the shoulder of the main body. A liquid storage container with an air pump is attached to the shoulder member 6 so as to fit into the annular space formed in the annular space. 2. The liquid storage container with an air pump according to claim 1, wherein the liquid container 2 is a vacuum glass medium bottle of a thermos flask. 3. The liquid storage container with an air pump according to claim 1 or 2, wherein the air pump P is a manual type. 4 The operation tool 25 of the air pump P is connected to the main body A.
A liquid storage container with an air pump according to any one of claims 1 to 3, which is provided on a liquid injection port cover 8 continuous to the side. 5 The operating tool 25 of the air pump P is connected to the main body A.
A liquid storage container with an air pump according to any one of claims 1 to 3, which is provided near the bottom of the container. 6. Claim 1, wherein the operating tool 25 of the air pump P is configured to double as a lock operating tool for switching between a locked state that prevents pump operation and an unlocked state that allows pump operation.
6. A liquid storage container with an air pump according to any one of items 5 to 6. 7. The liquid storage container with an air pump according to any one of claims 1 to 6, wherein the operating tool 25 of the air pump P is of a clamping type. 8. The liquid storage container with an air pump according to any one of claims 1 to 7, wherein the operating tool 25 of the air pump P has a bifurcated portion and is linked to the pump body. 9. The liquid storage container with an air pump according to any one of claims 1 to 7, wherein the operation tool 25 of the air pump P is supported by the case 7. 10. The air pump according to any one of claims 1 to 7, wherein the operating tool 25 of the air pump P is supported by a liquid injection port cover 8 connected to the main body A side. Liquid storage container. 11. The liquid storage container with an air pump according to claims 1 to 7, wherein the operating tool 25 of the air pump P is supported by a bellows cover 19.