JPS5811326Y2 - thermos - Google Patents

Description

[Detailed description of the invention] The present invention relates to a thermos flask equipped with a beak for guiding liquid injection, and a spout at the tip of the beak that can be opened and closed with a spout cover. The object of this invention is to simplify the structure of this type of thermos flask by making the operating member for operation also serve as a liquid injection guide plate.

Hereinafter, the thermos flask of the present invention will be explained based on the illustrated embodiments. Figures 1 to 3 are the first embodiment of the present invention, and Figures 4 and 5 are the second embodiment of the same Figure 6. 7 shows the third embodiment, and FIG. 8 shows the fourth embodiment. In each embodiment, reference numeral 1 indicates the thermos bottle body, and 2 indicates the lower opening attached to the upper part of the main body 1. Member 3 is the lower eye member 2
4 is a beak portion protruding from the front part of the lower spout member 2; 5 is a spout cover 31; and 5 is a spout cover 31;
A spout cover unit consisting of an operating member 21 for opening and closing operations, 6 a top plate placed on the upper surface of the lower spout member 2;
7 indicates a plug body.

First, the structure of the thermos flask of the first embodiment shown in FIGS. 1 to 3 will be explained. The main body 1 has a lower mouth member 2 placed on the upper part of an outer case 8 that houses an inner bottle 9, and A top plate 6 is placed on the upper part of the lower eye member 2.

A stopper insertion hole 3 with a female thread 11 carved on the inner surface is formed in the lower mouth member 2, and a bottle concentric with the bottle opening of the medium bottle 9 is formed at the center of the bottom of the stopper insertion hole 3. A mouth hole 12 is formed.

Further, a fitting groove 17 for fitting the top plate 6 is formed in the upper part of the inner wall surface of the plug insertion hole 3.

Further, the lower mouth member 2 is integrally provided with a gutter-shaped beak portion 4 that is open at the top and protrudes from its front portion.

The upper opening 16 of this beak portion 4 reaches the stopper insertion hole 3 by removing a portion 20X of the upper surface 20 of the lower mouth member 2.

The beak 4 also has pin receivers 1 at the upper ends of both side walls 14 and 14 for receiving pins 32 of the spout cover 31, which will be described later.
5.15 is formed.

Note that the tip of the beak 4 serves as a spout 13.

A top plate 6 is placed on the upper surface 20 of the lower opening member 2.

A protrusion 46 is provided at the bottom of the top plate 6 to fit into the fitting groove 17 formed in the plug insertion hole 3. By doing so, the top plate 6 is placed and fixed on the upper surface 20 of the lower opening member.

The top plate 6 has a protrusion 42 formed at its front portion that serves as a beak base cover that covers a portion (base side) of the upper opening 16 of the structure 4.

The protruding portion 42 also has a long hole 44 through which the protrusion 23 (described later) of the actuating member 21 is inserted so as to be movable in the front and back direction.
is formed.

Furthermore, a pair of guide receiving portions 43.43 for receiving guide pieces 24.24 (described later) of the actuating member 21 are provided on the lower surface of the protrusion 42.

The spout cover unit 5 includes a spout cover 31 and an operating member 21 that opens and closes the spout cover 31 and serves as a liquid injection guide plate.

The spout cover 31 is provided with a pin 32 at its rear portion, and furthermore, a pin 32 is provided at the lower part of the pin 32 for engaging an engagement receiving portion 25 of an operating member 21 to be described later to open and close the spout cover 31. An engaging portion 33 is integrally provided in a protruding manner.

The spout cover 31 is supported by both side walls 14.14 of the structure 4 by engaging its pin 32 into a pin receiving portion 15.15 formed in the structure 4.

The actuating member 21 has a protrusion 23 and a pair of guide pieces 24, 24 erected toward the rear on a substantially rectangular flat base member 22 with a smooth lower surface so as not to impede the flow of liquid. Further, the substrate 22 has a slot-shaped engagement receiving portion 25 formed at its front portion.

This board 22 has a width that is approximately the same as the inner width of the structure 4, and the front end of the board 22 is bent upward to form a front cover portion 26.

This actuating member 21 engages the guide piece 24.24 with a guide receiving portion 43.43 formed on the lower surface of the top plate projection 42, which acts as a beak base cover. It is supported on the lower surface of the body so that it can be slid forward and backward within a horizontal plane.

At this time, the protrusion 23 of the actuating member 21 is inserted into the elongated hole 44 formed in the top plate protrusion 42 so that its tip protrudes above the upper surface of the top plate protrusion 42 by an appropriate height. It has become.

The spout cover 31 engages its engaging portion 33 into the engaging receiving portion 25 of the actuating member 21, and inserts the pin 32 into the pin receiving portion formed on the side walls 14, 14 of the beak portion. 15. By fitting into 15, it is attached to spout 13 so as to be openable and closable.

The operating member 21 is used to open and close the spout cover 31, and also to prevent the liquid passing through the structure 4 from leaking outside from the upper opening 16 during pouring, and to guide the liquid to the spout 13. It also serves as a guide board.

The plug body 7 is constructed by fitting a knob part 52 into a body part 51, and a male thread 53 that can be screwed into the female thread 11 of the plug insertion hole 3 is formed on the outer periphery of the body part 51. has been done.

Further, the knob portion 52 has a hemispherical shape, and its lower end outer peripheral portion 56 is bulged outward from the outer peripheral surface of the body portion 51.

Further, the lower surface 54) of the knob portion 52 is a flat horizontal surface, and a circular cam groove 55 eccentric to the male thread 53 formed on the outer peripheral surface of the body portion 51 is formed on the lower surface 54. ing.

As shown in FIGS. 1 and 3, this cam groove 55 is carved so that the center Q of the cam groove 55 is slightly offset from the center line PP of the male thread 53 by a width T.

The eccentric direction of the groove 55 extends through the bottle mouth hole 1 through the stopper 7.
When 2 is completely occluded (the state shown in Figure 1),
The cam groove portion 55 a located at the shortest distance from the center line PP of the male thread 53 is determined to face the mounting position of the spout cover unit 5 .

For convenience, the cam groove portion 55a located at the shortest distance from the center line PP is referred to as the cam trough, and similarly the longest distance M
The cam groove portion 55b located at is called a cam ridge portion.

When the stopper 7 is closed, the protrusion 23 of the actuating member 21 supported on the lower surface of the top plate protrusion 42 is inserted into the cam groove 55 to an appropriate depth.

In this first embodiment, the depth of engagement between the protrusion 23 and the cam groove 55 is such that when the stopper 7 is in the closed state, both of them are
It is determined that they overlap by the same height as the pitch of the male threads 53.

In this way, when the stopper 7 is screwed in the closing direction, the engagement between the cam groove 55 and the protrusion 23 will start at the beginning of the last + rotation, and the stopper 7 will continue to be in a sealed state. While rotating, the protrusion 23 is operated so as to be pulled rearward.

Further, when the stopper 7 is screwed in the direction of opening from the sealed state, the cam groove 55 is operated to push the protrusion 23 forward before the stopper 7 rotates for the first time. If the protrusion 23 is rotated any further, the protrusion 23 will be removed from the cam groove 55.

In the thermos flask of the second embodiment shown in FIG. 4, a spout cover 31 as shown in FIG. 5 is used.

This spout cover 31 has an engaging portion that engages with the engaging receiving portion 25 of the operating member 21 formed by a retaining member 61 made of a separate member, and the engaging member 61 is connected to the spout cover 31 by a pin 62. It is pivotally attached to the lower surface of the rearward side in a swingable state, and furthermore, a relatively hard kick spring 62 is interposed between the engaging member 61 and the lower surface of the spout cover 31.

The other structure of the thermos flask of this second embodiment is the same as that of the first embodiment.
Since the structure is similar to that of the thermos flask in the embodiment, the explanation thereof will be omitted.

The kick spring 63 engages the spout cover 31 and the engaging member 61 when the spout cover 31 is in the closed state (the state shown in FIG. 4).
When the plug body 7 is rotated and the actuating member 21 is moved forward, the engaging member 61 engaged in the engaging receiving portion 25 of the actuating member 21 moves forward. At this time, the repulsive force of the kick spring 63 acts to rotate the spout cover 31 in an arc upward about the pin 32.

This spout cover 31 is attached to the spout 13 as shown by a chain line 31'.
In the open state, even if the spout cover 31 is inadvertently pressed from above, the spout cover 31 can rotate in an arc in the closing direction against the kick spring 63, and the retaining member 61 will be damaged. There is no problem of doing so.

In the thermos flask of the third embodiment shown in FIG. 6, a cam portion 71 for actuating the actuating member 21 is provided in the upper part of the body portion 51 of the stopper 7, and the actuating member 21 is pressed and actuated from the lateral direction. That's what I do.

Further, the engagement receiving portion 25 of the actuating member 21 is not a slot but a recessed portion to prevent pouring liquid from entering between the actuating member 21 and the top plate 6 during pouring. .

As shown in FIG. 7, the guide piece 24 of the actuating member 21 has engagement grooves 24 a and 24 on both sides of one protrusion, respectively.
a, and the engagement grooves 24a are connected to the guide receiving portion 43.a on the lower surface of the top plate protrusion (beak base cover) 42.
43.

Further, in the thermos of the third embodiment, the spout cover 31 is integrally formed with an engaging portion 33 that engages with the engaging receiving portion 25 of the actuating member 21, and the engaging portion 33 and the top plate are also formed integrally. A kick spring 73 is interposed between the lower surface of the protrusion 42 and the spout cover 31 to normally bias it in the closing direction. It is constantly pressed toward the center of the stopper 7.

Note that the rear end of the actuating member 21 is provided with a rising portion 2 for facilitating contact with the cam portion 71 formed on the plug body portion 51.
7 is formed.

In the thermos flask of the fourth embodiment shown in FIG. 8, a compression coil spring 83 is used in place of the kick spring 73 shown in FIG. 6 in order to press the actuating member 21 toward the center of the stopper 7.

That is, a spring locking portion 81 is provided protruding from the lower surface of the top plate protrusion (beak base cover) 42, and a compression coil spring 83 is inserted between the locking portion 81 and the rising portion 27 at the rear end of the actuating member 21. The actuating member 21 is pressed toward the center of the stopper 7 by interposing the actuating member 21 .

In each of the embodiments shown in FIGS. 6 and 8, even when the plug body 7 is pulled out from the plug insertion hole 3, the spout cover 31 is blocked by the spout 13 and cannot be maintained any longer. Since the joint portion 33 does not move rearward, the actuating member 21 is no longer pressed toward the center of the stopper.

In the thermos flasks of the first to fourth embodiments described above, when the stopper 7 is rotated from the closed state to the open direction, the actuating member 21 slides forward under the action of the cam groove 55 (or the cam portion 71). , the engagement receiving part 25 of the operating member 21 presses the retaining part 33 (or the retaining member 61) of the spout cover 31 in the forward direction, and the spout cover 31 is rotated in an arc upward about the pin 32. In addition, when the spout cover 31 is in the open state, if the plug body 7 is closed by screwing in the closing direction, the cam groove 55 (or the cam portion 71 ), the actuating member 21 is pulled rearward (or is pressed by the springs 73, 83), and the spout cover 3
1 to close the spout 13.

Note that this actuating member 21 allows the liquid to flow through the actuating member 2 even when the thermos flask is tilted at a large angle when pouring liquid into the bottle.
1 flows smoothly in the direction of the spout 13, and acts to prevent the pouring liquid from flowing between the operating member 21 and the top plate 6.

Next, to explain the effects of the present invention, the thermos flask of the present invention has the following effects.

(1) The spout 13 of the structure part 4 can be opened and closed by the spout cover 31, and the spout 13 is closed when the thermos is at rest. This prevents the liquid from entering the structure, thereby keeping the structure of the thermos bottle clean.

(2) The actuating member 21, which has approximately the same size as the inner width of the structural part 4, is disposed below the beak base cover 42, and the actuating member 21 also serves as a pouring liquid guide plate. The special partition plate that was provided in the structure part 4 of the thermos for seeds to separate the housing chamber such as the liquid injection path and the spout cover attachment part is no longer necessary, and the number of parts can be reduced. This has the effect of simplifying the structure of the thermos flask and reducing costs.

[Brief Description of the Drawings] Fig. 1 is a vertical cross-sectional view of the upper part of a thermos flask according to the first embodiment of the present invention, Fig. 2 is an exploded perspective view of the thermos flask shown in Fig. 1, and Fig. 3 is a bottom view of the stopper. , FIG. 4 is a vertical sectional view of the upper part of the thermos flask according to the second embodiment of the present invention, FIG. 5 is a lower perspective view of the spout cover shown in FIG. 4, and FIG. 6 is the third embodiment of the present invention. FIG. 7 is a perspective view of the operating member shown in FIG. 6, and FIG. 8 is a top longitudinal sectional view of the thermos flask according to the fourth embodiment of the present invention. . 1...Thermos bottle body, 2...Lower mouth member,
3... Plug insertion hole, 4... Structure, 7...
...Bung body, 13...Spout, 21...
・Operating member, 31... Note cover

Claims (1)

[Scope of utility model registration request] This thermos flask includes a lower mouth member 2 having a stopper insertion hole 3 and a beak 4 with a spout 13 protruding from the front, and a stopper 7 is screwed into the stopper insertion hole 3. The beak 4 includes a beak base cover 42 that covers the base side of the beak 4, a spout cover 31 that is movable in the direction of opening and closing the spout 13, and a beak base cover 42. An actuating member 21 is disposed on the lower side of the body and operates to open and close the spout cover 31 by moving back and forth in the front and rear directions as the stopper 7 rotates. is approximately the same size as the inner width of the beak portion 4, and its lower surface is a smooth surface that does not impede the flow of liquid, so that the actuating member 21 also serves as a guide plate for the liquid flowing inside the beak portion 4. A thermos flask that is characterized by: