JP3068298U - Lid for vacuum thermos - Google Patents

Abstract

(57) [Summary] [Problem] To provide a lid for a vacuum thermos bottle which has a function of sealing an inner lid in conjunction with an outer lid, and has an improved structure so that the structure is very simple and inexpensive. I do. SOLUTION: A stem provided with a stem screwed into an opening of a bottle body, comprising an inner lid in which a valve body is accommodated, and an outer lid covering the periphery of the inner lid, wherein the stem of the inner lid A vacuum thermos lid in which a valve body is biased by a spring at an inner center of the stem, wherein an upper surface of the valve body is formed of a high surface and a low surface, and a lower surface of an operation button provided at an upper center of the stem. At the center, a cam rod vertically abutting on the lower surface of the valve body is integrally extended to move the valve body up and down while moving between the lower surface and the higher surface. As a result, the inner lid is formed very simply with only the T-shaped part including the operation buttons and the cam rod and the valve body.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a lid for a vacuum thermos. More specifically, it relates to a lid for a vacuum thermos that can be opened and closed with one touch.

[0002]

[Prior art]

 A vacuum thermos made of stainless steel or other steel material with a double-walled body with a vacuum inside has an excellent heat- and cold-retaining effect, and the lid attached to the upper part reduces the heat-retaining effect. In order to prevent this, a double cap structure such as an outer lid and an inner lid is usually adopted.

[0003] The inner lid is opened and closed so that the liquid contained in the vacuum thermos does not flow outside and is poured out when used, and the outer lid covers around the inner lid to maintain hygiene. To protect the inner lid and prevent heat loss.

In such a vacuum thermos, the user repeatedly opens and closes the inner lid more frequently than the outer lid, so that the inner lid must be easily opened and closed. .

[0005] In addition to the structure proposed by the present applicant, there have been examples of various types of inner lids that can be easily opened and closed by a one-touch method. From a structural point of view, the user operates the release button to open the spout cover, and closes the spout cover by closing the spout cover when closing, and the entire circumference of the inner plug is formed by the spout. In addition, a method is mainly adopted in which the internal valve body opens in conjunction with another link mechanism, and when the outer lid can be covered, another link mechanism works in conjunction to close the spout.

As an example of a vacuum thermos related to the latter, there is a portable liquid container disclosed in Japanese Utility Model Laid-Open No. 43327/1990.

[0007] The portable liquid container disclosed in this disclosure is configured such that when a user presses an operation member of a valve body installed on an upper surface of an inner lid, the valve body is interlocked and opened and a part of the body is simultaneously opened. The release button is set to project from the upper surface of the inner lid. Further, the opened valve body is automatically closed by pressing the release button when the outer lid is covered.

In the former case, however, there is a problem in terms of hygiene because the spout cover must be pushed when closing the inner plug. The latter case is hygienic because the user's hands do not come into direct contact with the spout, but there is a problem that the cost is high due to the complicated structure.

Japanese Utility Model Registration No. 3026737 devised by the present applicant simplifies the complexity of the above-described structure, and at the same time, automatically closes when the outer lid is covered. However, the registered utility model proposed by the applicant has the disadvantage that the opening and closing of the spout is not linked. The root cause is that the spout is indirectly linked by a lever pushed by hand.

[0010]

[Problems to be solved by the invention]

 Therefore, the present invention provides a lid for a vacuum thermos, which has a function of sealing the inner lid in conjunction with the outer lid, and has an improved structure that is extremely simple and inexpensive. Aim.

[0011]

[Means for Solving the Problems]

 The lid for the vacuum thermos of the present invention has a stem screwed into the opening of the bottle body, and includes an inner lid in which the valve body is housed, and an outer lid covering the periphery of the inner lid. A lid for a vacuum thermos in which a valve body is biased by a spring at the center of the stem of the inner lid, wherein the upper surface of the valve body is formed of a high surface and a low surface; In the center of the lower surface of the operation button provided on the camshaft, a cam rod vertically abutting on the lower surface of the valve body is integrally extended, and the valve body is raised and lowered while moving between the lower surface and the higher surface. It is characterized by having a configuration.

In the present invention having the above-described structure, the inner lid is formed very simply with only a T-shaped part including the operation button and the cam rod and the valve body, so that the manufacturing cost is low and the apparatus operates without trouble. It is characteristic. In a state where the operation button is opened, a part of the operation button protrudes above the inner lid. When the outer lid is closed, the operation button is interlocked, and the valve body is also hermetically closed.

Therefore, the vacuum thermos of the present invention has an effect that the inner lid is opened and closed only by the operation of opening and closing the outer lid by the user, thereby simplifying use.

[0014]

[Embodiment of the invention]

 Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an external perspective view of an inner lid, which is a main part of the present invention, in which a valve 6 is provided below a stem 4 having an external thread 2 formed on an outer periphery, and an operation is provided on an upper side. A button 8 is provided so as to be swingable about a support shaft 9, and a spout 10 communicating with the valve 6 is provided at a predetermined location on the upper edge of the stem 4. There.

As shown in FIG. 2, the valve 6 is formed integrally with a valve body 14 provided at the center of the stem 4 so as to be movable up and down and urged by a spring 12. . On the other hand, the upper surface of the valve body 14 is formed in a two-stage shape having a surface 16 having a high area of 1/2 and the remaining area having a surface 18 having a low area.

The operation button 8 has a cam rod 20 on the lower surface with respect to the upper surface of the valve body 14 thus formed in a two-stage shape, and the lower stage of the cam rod 18 is normally perpendicular to the lower surface 18 in a normal state. Is provided so as to be in contact with.

When the lower part of the cam rod 20 is in contact with the lower surface 18 in this manner, the valve 6 is pushed up by the spring 12 and seals the entire lower part of the stem 4.

At this time, in order to completely seal the stem 4, it is desirable to attach a packing 22 to the peripheral edge of the lower end.

When the user presses one side of the operation button 8 in the direction of the arrow in FIG. 3, the seesaw operation is urged to swing, and as a result, the lower part of the cam rod 20 is moved from the lower surface 18 to the higher surface 16. The valve body 14 is lowered in the direction opposite to the spring 12 so that the valve 6 is opened due to the difference in height between the high surface 16 and the low surface 18.

As described above, when the valve 6 is open, the cam rod 20 takes an oblique posture with respect to the high surface 16, and the elastic force transmitted from the spring 12 acts in a direction in which the operation button 8 opens.

Therefore, the valve 6 remains open even if the user releases his / her hand after pressing down the operation button 8.

The opened valve 6 can be closed by the user pushing up the operation button 8 in the opposite direction to return it. As a result, as shown in FIG. 4, the stem 4 can be screwed into the bottle 24 and automatically closed even when the outer lid 26 is being covered when used as a vacuum thermos.

That is, when the valve 6 is open, one side end of the operation button 8 projects above the stem 4 as a result of the seesaw movement, and at this time, the outer lid 26 is placed thereon. When the screw is overturned, the valve 6 can be automatically closed by its inner surface interfering with one end of the operation button 8 and pushing it down.

[0025]

[Effect of the invention]

 As described above, according to the present invention, the inner lid, which is the most complicated structure of the vacuum thermos lid, is provided with a T-shaped component, an integral operation button and a cam rod, and a desired valve with only the valve body. The opening and closing operation can be performed, so that the manufacturing cost can be reduced, the assembling man-hours can be simplified, and the productivity can be improved.

[Brief description of the drawings]

FIG. 1 is an external perspective view of a main part inner cover according to an embodiment of the present invention.

FIG. 2 is a side sectional view showing a sealed state of an inner lid in FIG.

FIG. 3 is a side sectional view showing an open state of an inner lid corresponding to FIG. 2;

FIG. 4 is a side sectional view of a thermos bottle to which the present invention is applied.

[Explanation of symbols]

 2 Male screw 4 Stem 6 Valve 8 Operation button 10 Outlet 12 Spring 14 Valve body 16 High side 18 Low side 20 Cam rod 22 Packing 24 Bottle body 26 Outer lid

Claims (1)

[Utility model registration claims] 1. An inner lid having a stem screwed into an opening of a bottle body and containing a valve body therein, and an outer lid covering the periphery of the inner lid. A lid for a vacuum thermos in which a valve body is biased by a spring at the center of the inside of the stem, wherein the upper surface of the valve body is formed of a high surface and a low surface, and an operation button provided at the center of the upper portion of the stem. A lid for a vacuum thermos, wherein a cam rod vertically abutting on a lower surface of the valve body is integrally extended at the center of the lower surface, and moves up and down the valve body while moving between the lower surface and the higher surface. .