JPH0317807Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Application This invention relates to a portable heat-insulating container used to keep a relatively large volume of liquid such as drinking water heated or cooled for a long period of time.

(b) Prior art When using a heat-retaining container, the multiple legs provided at the bottom are opened to ensure a space for inserting a container such as a pot between the liquid dispensing tool and the installation surface, and to store the container. In such cases, the legs are closed inward to reduce the storage size.

These folding legs had to be engaged and fixed in their respective positions when the legs were opened and when the legs were closed, so that they would not rotate naturally.

For this reason, the conventional method for engaging and fixing the legs of a heat insulating container is to screw and fix a metal elastic body to the bottom of the leg with screws, and the elasticity of the metal body is used to engage and fix the legs at each position. In such a method, during long-term use, the screw rotates in the direction of engagement and disengagement, and eventually the screw and the metal elastic body fall off from the fixed part, causing the legs to open.
There was a problem in that it became impossible to engage and fix the legs when the legs were closed.

In addition, since the screws are used for fixation, the number of component parts increases and assembly work is required, which is a factor in increasing costs.

(c) Purpose of the invention Therefore, the purpose of this invention is to eliminate the screw fixation of the metal elastic body to prevent the metal elastic body from falling off during use, and to provide a portable heat-insulating container that can reduce costs. .

(d) Structure of the device This device has a locking piece bent at one end of an elastic metal body with a substantially U-shaped side surface, in a locking hole formed on the upper surface of the leg attachment portion of the bottom member. Along with inserting
A linear actuating piece formed on the other end side of this metal elastic body through a curved elastic part is rotatably provided in the leg attachment part, and locks the upper part of the leg when the legs are opened and closed. The portable heat-insulating container is characterized in that it is configured to be brought into pressure contact with a surface to engage and fix the legs when the legs are opened or closed.

(e) Effect of the invention According to this invention, the locking piece at one end of the metal elastic body is inserted into the locking hole formed in the bottom member, and the locking piece at one end of the elastic metal body is inserted into the locking hole formed in the bottom member, and the locking piece is inserted into the locking piece at one end of the elastic metal body, and the locking piece is inserted into the locking piece at one end of the elastic metal body. Since the locking surface of the leg body is brought into pressure contact with the actuating piece of the leg body when the leg body is opened and closed, the metal elastic body does not separate from the bottom member, and the metal elastic body can be attached to the bottom member as in the past. No need for screws, etc. for fixing.

Therefore, even after long-term use, it is completely prevented that the metal elastic body will fall off from the bottom member due to the return rotation of the screw, making it impossible to engage and fix the legs when opening and closing the legs, and the number of component parts is reduced. At the same time, the assembly work time for screwing and fixing the metal elastic body can be saved, making it possible to significantly reduce costs.

Furthermore, since the surface of the linear actuating piece via the curved elastic portion comes into contact with the locking surface of the leg, the pressure contact force is large and stable, ensuring stable and reliable opening and closing of the legs. can be maintained.

(F) Embodiment of the invention An embodiment of the invention will be described below in detail based on the drawings.

The drawing is a portable thermal container (hereinafter referred to as thermal container)
As shown in FIGS. 1 to 4, an outer case 2 of this heat-insulating container 1 has an inner container 4 disposed in its internal space via a heat insulating material 3. As shown in FIGS. Moreover, a lid body 5 for injecting liquid into the above-mentioned inner container 4 is provided at its upper end.
It is screwed on so that it can be attached and detached. Further, handles 6 for transporting the heat-insulating container 1 are pivotally attached to both sides of the upper end so as to be rotatable in the front-rear direction, and a bottom member 7 is fixed to the lower end.

The aforementioned bottom member 7 is provided with a liquid pouring tool 8 which communicates with the bottom of the aforementioned inner container 4 and pours out the injected contents to the outside at the front central portion thereof so as to be openable and closable. Further, as shown in FIG. 2, leg attachment portions 9 are integrally formed at four equally spaced diagonally diagonal positions on the bottom surface thereof.

The leg mounting portion 9 described above is formed by a U-shaped peripheral wall 10 parallel to the diagonal line and open at the center side.
A pair of shaft insertion holes 11, 1 are provided on the left and right sides of this peripheral wall 10.
1 is provided. Further, a recess 12 into which the metal elastic body 14 is inserted is provided on its upper surface, and a locking hole 13 is formed upward on the outside of the recess 12, and one end of the metal elastic body 14 is formed in the locking hole 13. A portion locking piece 15 is inserted and fitted.

The above-mentioned elastic metal body 14 is formed of a spring material such as stainless steel and has a substantially U-shaped side surface, and the above-mentioned locking piece 15 is bent upward and provided at one end of the U-shaped elastic body 14. An actuating piece 16 is formed on the other side of the curved resilient part formed by folding back into a letter shape, and the lower surface of this actuating piece 16 touches the leg 17 when the leg 17 is opened and closed. Locking surface 1 which is the upper part of
8 is pressed against it. Therefore, the metal elastic body 14 is prevented from moving in the front-back direction by the aforementioned locking hole 13, and is also prevented from moving in the vertical direction by the legs 17, and is fixed in the recess 12 of the leg attachment portion 9. .

The above-mentioned leg body 17 has the above-mentioned shaft insertion holes 11, 11.
It is rotatably supported by a shaft 19 inserted through the
The metal elastic body 14 is controlled via the metal elastic body 14.

That is, during the rotation operation from the open leg position to the closed leg position, the locking surface 18 engages with the operating piece 16 of the metal elastic body 14.
It rotates while being pressed by.

Therefore, when the leg body 17 is rotated toward the open leg position, the shaft 19, the locking surface 18,
When passing the dead point DP constituted by the actuating piece 16, the locking surface 18 is rotated clockwise by the actuating piece 16, and automatically rotates to the open leg position with the detent after passing the dead point DP. , as shown in FIG. 3, comes into contact with the closing portion 20 of the peripheral wall 10 and maintains its opened state.

Moreover, when the leg body 17 is rotated to the closed leg position,
As mentioned above, the locking surface 18 is rotated counterclockwise by the actuating piece 16 at the point when it passes the dead center DP, and with the moderation that passes the dead center DP, it reaches the closed leg position as shown by the dashed line in FIG. It rotates automatically and maintains its closed state.

In the legs 17 of the heat-insulating container 1 configured in this manner, the screws for attaching and fixing the metal elastic body 14 can be eliminated, making it possible to reduce costs, and also preventing the metal elastic body 14 from detaching due to the natural return of the screws. Completely preventable.

Furthermore, since the metal elastic body 14 is formed into a substantially U-shape, the dead center of the leg body 17 can be adjusted when opening and closing the legs.
When the leg body 17 is slightly passed through the DP, the leg body 17 automatically rotates to the open leg position or the leg closed position, and its operability is significantly improved.

[Brief explanation of the drawing]

The drawings show an embodiment of this invention, in which Fig. 1 is a side view of a portable heat-insulating container, Fig. 2 is a bottom view of Fig. 1, and Fig. 3 is a sectional view of essential parts of the legs in an open state. Fourth
The figure is a cross-sectional view of the main part in a state where the leg body is at the dead center position. 7... Bottom member, 9... Leg mounting portion, 13... Locking hole, 14... Metal elastic body, 15... Locking piece, 1
6... Actuation piece, 17... Leg body, 18... Locking surface.

Claims (1)

[Claims for Utility Model Registration] A locking hole 13 formed on the upper surface of the leg attachment portion 9 of the bottom member 7 is provided with a locking hole 13 formed by bending one side end of a metal elastic body 14 having a substantially U-shaped side surface. At the same time as inserting the piece 15, a linear actuating piece 16 formed on the other end side of the metal elastic body 14 via a curved resilient part is rotatably provided in the leg attachment part 9, and the legs are opened. and a portable heat-insulating container, characterized in that the container is brought into pressure contact with the locking surface 18 on the upper part of the leg 17 when the leg is closed.