JPH0246826Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a liquid container such as a thermos flask that allows liquid to be poured at an angle.

(Prior Art) Fig. 9 shows the liquid path portion of a conventional general tilt-injection type liquid container. The liquid path portion 60 is formed with a substantially uniform wall thickness T over its entire length. Therefore, the tip surface 6 of the liquid path section 60
The area of 0a (thickness T ₁ ) is relatively large.

However, if the area of the tip surface 60a of the liquid path is large, when the liquid injection operation is completed (when the liquid container is returned from the tilted injection state to the upright position), the surface tension of the liquid causes the liquid path to close. Relatively large water droplets W remain at the tip, which causes poor drainage. Water droplets W remaining at the tip of the liquid path 60
Due to its own weight, the liquid flows down along the lower surface 60b of the liquid path section 60 and further along the outer surface of the exterior body 54. In this way, the water droplets W form the liquid path lower surface 60a.
When the water drops down the outer surface of the exterior body 54, there is a problem in that the water droplets wet the floor and the like.

Furthermore, as shown in FIG. 10, some known liquid containers have a mechanism in which water droplets W remaining on the tip surface 60a of the liquid channel 60 during draining when dispensing the liquid are transmitted to the lower surface of the liquid channel and do not flow down. In order to achieve this, there is a device in which a small protrusion 61 projecting downward is integrally molded at the tip of the liquid path (for example, Japanese Utility Model Publication No. 59-1349).

However, in the known liquid container shown in FIG. 10, water droplets W remaining at the distal end spout of the liquid channel 60 during draining during the liquid injection operation remain at the small protrusion 61, and flow onto the lower surface 60b of the liquid channel. However, the area of the tip surface 60a of the liquid channel (thickness T ₂ )
becomes even larger than that (thickness T ₁ ) shown in FIG. 10, and a large water droplet W remains at the tip spout of the liquid channel when draining, and the weight of the water droplet W increases, causing the water droplet to There was a problem in that the W easily fell from the lower surface of the small protrusion 61 directly onto the floor (wetting the floor).

In addition, the liquid path portion of this type of liquid container is
It is integrally molded together with the shoulder member from a synthetic resin material, but when a small downward protrusion 61 is integrally molded at the tip spout of the liquid channel as shown in FIG. 10, it is shown in FIG. 11. As shown in FIG. If you try to release the mold forward, the small protrusion 61 will get caught), and the direction of mold release will be restricted.

In addition, when the liquid channel part is integrally molded with the shoulder member from synthetic resin material as described above, the upper part of the liquid channel part needs to be open for convenience of mold cutting.
The upper open part of the liquid channel is generally closed with a cover plate made of a separate member (for example, Utility Model No. 57-55431
Publication No.). In this way, in which the upper open part of the liquid channel is closed off with a lid plate, it is necessary to integrally mold a positioning structure for attaching the lid plate to the liquid channel side, and the structure of the mold for this is complicated. It was becoming.

(Purpose of the invention) In view of the problems of conventional liquid containers as described above, the present invention is a liquid container in which a lid plate is placed over the upper part of the liquid channel, which allows water to be drained easily at the end of the liquid injection operation, and in which the liquid can be easily drained. The purpose of this invention is to facilitate molding of the channel and to simplify the structure of the mold for molding the liquid channel.

(Means for Achieving the Purpose) The present invention is an inclined liquid injection type in which a shoulder member made of synthetic resin provided at the top of a liquid container body is provided with a liquid path for liquid injection that protrudes outward. In the liquid container, a positioning step for force-fitting the lid plate forming the upper surface of the liquid path portion onto the outer surfaces of both left and right side walls of the liquid path portion from the outside, and positioning the force-fitting of the lid plate in the liquid path portion. forming a part, and forming a part at the tip spout of the liquid passage part, at a position that projects outward from the tip of the lid plate with a step in the front and back direction, and extending from the lower surface of the liquid passage part to both left and right outer surfaces. A draining tongue having a thickness thinner than that of the bottom wall portion of the liquid channel is integrally molded so as to protrude toward the pouring direction, and the left and right outer surfaces of the draining tongue and the left and right positions are determined. The feature is that the outer surface of the stepped portion is continuous with no difference in level.

(Function) Since the present invention forms a thin draining tongue at the tip spout of the liquid channel, the area of the end face of the tip spout can be reduced, thereby completing the liquid pouring operation. At times, water droplets adhering to the tip spout of the liquid channel can be made as small as possible. In addition, the draining tongue is located at a position that projects outward from the tip of the lid plate that covers the top of the liquid channel with a step in the front and back direction, so that the liquid that passes through the liquid channel when dispensing liquid is Water droplets that come into contact with the lid plate and adhere to the lid plate (particularly the tip of the lid plate) after liquid pouring work are blocked by the step and are prevented from flowing down to the tip side of the draining tongue. These results provide an effect of improving the draining action at the tip of the spout. In addition, since the draining tongue piece is integrally molded with the distal end spout of the liquid channel so as to protrude in the pouring direction, it is removed in the pouring direction when demolding the mold for forming the liquid channel. Moreover, since the left and right outer surfaces of the draining tongues on each outer surface of the lid plate positioning stepped portion formed on both the left and right outer surfaces of the liquid channel are continuous without a step, it is possible to Even if a lid plate positioning step and a thin draining tongue are provided, the side surface forming portion of the lid plate positioning step and the side surface forming portion of the draining tongue in the mold for molding the liquid channel section. The stepped part in between is the bottom part.

(Example) An example of the present invention will be described with reference to FIGS. 1 to 8. In the liquid container of this example,
Reference numeral 1 denotes a liquid container main body comprising an inner container 6 made of a vacuum double bottle housed within an exterior body 4, and reference numeral 2 designates a stopper that is screwed into and removed from a stopper insertion hole 7 of the liquid container main body 1.

The lower end of the plug insertion hole 7 serves as a liquid supply port 8 that communicates with the inside of the inner container 6. This liquid supply port 8 is opened and closed by a stopper 2.

In this embodiment, the exterior body 4 has a body case part that covers the outer side of the inner container 6 and an upper part that becomes the shoulder member 5 of the liquid container body 1, and is integrally molded with synthetic resin materials. It is configured.

A liquid channel portion 10 for pouring liquid is integrally formed in the shoulder member 5 portion. The liquid passage section 10 is formed in the shape of a gutter with a U-shaped cross section, having a bottom wall 12 and side walls 13, 13 on both sides thereof, and the base end thereof is continuous with the liquid supply port 8, and the distal end thereof is a gutter. It is formed so as to protrude in the direction.

A lid plate 31 made of a separate member is placed over the top of the liquid path section 10. That is, as shown in FIGS. 2 to 6, each side wall 13, 1 of the liquid path section 10
Positioning step portions 23, 23 for positioning the lid plate are formed at positions near the top of the outer surface of No. 3, respectively. Furthermore, outwardly directed claws 14, 14 are formed on the outer surface 23a of each of the positioning steps 23, 23, respectively. On the other hand, hanging walls 33, 33 are formed on both sides of the lid plate 31, and inward claws 34, 34 are formed on the inner surfaces of the hanging walls 33, 33, respectively. To attach this cover plate 31, insert the cover plate 31 from the front of the liquid path 10 in the direction of arrow C as shown in FIG. The cover plate 31 is attached to the upper part of the liquid channel by being guided by the outward claws 14, 14 on the channel side and fitting into the outward claws 14, 14, respectively. With this cover plate installed, the left and right hanging walls 3
3 and 33 are respective positioning steps 2 on the liquid path side.
3,23. Further, small-diameter recesses 15, 15 are formed on the upper surface of each side wall 13, 13 of the liquid channel, respectively, and on the other hand, the lower surface of the cover plate 31 allows the cover plate 31 to be placed in the normal position above the liquid channel. Each of the above dents 1 at the covered position
Protrusions 35, 35 that can be fitted into the interiors of the protrusions 35, 35 are formed to protrude downward.
are fitted into the recesses 15, 15, respectively, and the cover plate 3
This prevents 1 from slipping out inadvertently.

The tip spout 11 of the liquid path 10 has a
The draining tongue piece 21 is made considerably thinner (code B, e.g., about 1 mm) than the wall thickness A (e.g., 2 to 3 mm) of the bottom wall 12 portion of the 0. It is integrally molded so that it protrudes. The upper surface of this draining tongue piece 21 is the liquid channel part 1
The draining tongue piece 21 is continuous with the upper surface of the bottom wall 12 of the lid plate 31 in a flush manner.
It is formed into a U shape along the edge of the tip spout 11 of the liquid channel 10 at a position projecting outward with a step D in the front-rear direction from point a. Furthermore, the left and right outer surfaces 21a, 21a of this draining tongue piece 21
are the left and right positioning steps 23 of the liquid path section 10,
It is continuous with the outer surfaces 23a, 23a of 23 without any step.

This draining tongue piece 21 is molded at the same time as the exterior body 4 is molded. That is, this draining tongue piece 2
1, as shown in FIG. 7, if a convex portion 21' for forming the draining tongue is formed on a part of the lower mold _X2 ,
It can be formed between the lower mold X ₂ and the upper mold X ₁ . In addition, the left and right outer surfaces 2 of this draining tongue piece 21
1a and 21a are the lid plate positioning steps 23 and 2.
The lid plate positioning stepped molding part and the draining tongue piece in the mold (lower _mold It is possible to eliminate a stepped portion between the molded portion and the molded portion. By eliminating the stepped portion between the lid plate positioning step molding portion and the draining tongue molding portion in the mold as described above, processing of the mold becomes simple. Furthermore, when disassembling the molds assembled during molding of the exterior body 4, since the draining tongue piece 21 is formed to protrude toward the pouring direction of the liquid channel,
The lower die X ₂ in FIG. 7 (the lower die X ₂ is divided into a plurality of pieces in the horizontal direction) can also be cut out toward the front (in the direction of arrow D).

This draining tongue piece 21 has a thin wall (symbol B) as described above, so that the area of its tip surface is small, and when the liquid pouring operation is completed (when it is stood upright from the tilted state), the liquid channel part 10 Tip spout 11
Since the water droplets (symbol W in FIG. 8) adhering to the water droplets are small, the water-draining effect is improved. Furthermore, the tip 31a of the lid plate 31 placed over the top of the liquid channel 10 is in a position that is set back from the draining tongue 21 part with a step D in the front and rear direction, so that the liquid pouring operation is completed. At times, the tip 31 of the cover plate 31
Even if water droplets are attached to a, the water droplets at the tip of the lid plate will not be transferred to the front surface of the draining tongue piece 21. In this way, the lid plate 31 is placed on the top of the liquid path section 10.
Even if it is covered with water, the presence of the lid plate 31 prevents the draining from becoming difficult.

In FIG. 1, reference numeral 17 is a liquid passage formed in the plug body 2, 19 is a valve body for opening and closing the liquid passage 17,
Reference numeral 19 denotes a push button for opening and closing the valve body 18. This push button 19 is configured in a ratchet type, and each time it is pressed, it changes between an upward position (valve closed state) and a downward movement position (valve open state). It is designed to come to rest at two positions, respectively. Reference numeral 20 denotes a handle, and this handle 20 is integrally molded with the exterior body 4.

(Effects of the invention) The liquid container of the invention has a thin draining tongue 21 formed on the distal end spout 11 of the liquid path 10, so that the liquid draining effect is good at the end of the liquid pouring operation. Therefore, the water droplets W do not flow down the lower surface of the liquid channel or fall directly from the tip of the cover plate, and the water droplets W are prevented from staining the exterior body 4 or wetting the floor surface. can be prevented. In addition, since the draining tongue piece 21 is formed at a position where it projects outward from the tip of the cover plate 31 formed at the upper part of the liquid channel part 10 with a step D in the front and back direction, the liquid The water droplets attached to the tip of the lid plate 31 at the end of the pouring operation are blocked by the step D and do not flow to the front side of the draining tongue piece 21, so the lid plate 31 is provided above the liquid channel part. Even if it is a water bottle, the presence of the cover plate 31 has the effect that draining does not become difficult.

Further, according to the present invention, since the draining tongue piece 21 is integrally molded so as to protrude toward the pouring direction of the liquid channel, when the mold for molding the liquid channel is removed, the draining tongue 21 shown in FIG. Front (direction in which the liquid channel protrudes) as in the example of
Since there is room to select the direction of demolding, the molding process can be easily performed.

Furthermore, the left and right outer surfaces 21 of the draining tongue piece 21
a, 21a and each outer surface 23 of the lid plate positioning steps 23, 23 formed on the outer surface of the liquid channel side walls 13, 13.
Since a and 23a are continuous without any step,
There is also an effect that there is no stepped portion between the side surface molding portion of the draining tongue and the side surface molding portion of the positioning step in the mold, which facilitates processing of the mold.

[Brief explanation of the drawing]

FIG. 1 is a side view of the upper half of a liquid container according to an embodiment of the present invention in cross section, and FIG. 2 is a side view of the liquid container shown in FIG.
Fig. 3 is an exploded perspective view of the vicinity of the liquid path in Fig. 1, Fig. 4 is a back view of the lid plate in Fig. 3, and Fig. 5 is a plan view of the vicinity of the liquid path in Fig. 3. , Fig. 6 is an explanatory diagram of a method for attaching the lid plate to the liquid container of Fig. 1, Fig. 7 is an explanatory diagram of a method of forming the liquid channel portion of the liquid container of Fig. 1, and Fig. 8 is an illustration of the function of the draining tongue. The explanatory drawings, FIGS. 9 and 10, are respectively sectional views of a liquid path portion of a conventional liquid container, and FIG. 11 is an explanatory view of a method of forming the liquid path portion of FIG. 1...Liquid container body, 5...Shoulder member, 10...
Liquid path part, 11...Tip spout part, 12...Bottom wall,
13... Side wall, 21... Draining tongue piece, 21a...
...Outer surface, 23... Positioning step, 23a... Outer surface, 31... Lid plate, 31a... Tip.

Claims (1)

[Scope of utility model registration request] A liquid container of an inclined liquid pouring type in which a shoulder member 5 made of synthetic resin provided on the upper part of a liquid container main body 1 is provided with a liquid path 10 for pouring liquid that projects outward,
The lid plate 31 forming the upper surface of the liquid path section 10 is force-fitted to the outer surfaces of the left and right side walls 13, 13 of the liquid path section 10 from the outside, and the forced fit of the lid plate 31 is positioned on the liquid path section 10. positioning steps 23, 23 are formed at the distal end spout 11 of the liquid path section 10 at a position protruding outward from the distal end 31a of the lid plate 31 with a step D in the front and back direction; The bottom wall 1 of the liquid passage section 10 extends from the lower surface of the section 10 to both left and right outer surfaces.
Draining tongue piece 21 that is thinner than the wall thickness A of the second part
are integrally molded so as to protrude in the pouring direction, and the left and right outer surfaces 21a, 21a of the draining tongue 21 and the left and right positioning steps 2
A liquid container characterized in that outer surfaces 23a, 23a of Nos. 3 and 23 are continuous with no difference in level.