JPH0314106Y2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Field of Application This invention relates to the folding legs of a heat-insulating container used to maintain a heated or cooled liquid, such as drinking water, for a long period of time.

(b) Prior art When using a heat-retaining container, open the folding legs to secure a space between the installation surface and the pot, insert a pot, etc. into this space, and pour out the contents from the pot. do. Furthermore, when storing the heat insulating container, the folding legs are closed to reduce the storage size. For this reason, the folding legs must be engaged and fixed in their respective positions when the legs are opened and closed so that they do not rotate naturally.

Therefore, in the conventional folding leg engagement and fixing structure, a metal elastic body is installed at the bottom of the folding leg and the engagement and fixation is performed using the elasticity of the metal elastic body. Problems arose in which the metal elastic body broke and rusted due to repeated fatigue of the metal.

(c) Purpose of the invention Therefore, the purpose of this invention is to provide a folding leg for a heat-insulating container that is configured to have flexibility and to engage and fix the legs in the open and closed positions. .

(d) Structure of the device This device integrally forms an elastic piece that is made flexible by a cutout groove at the upper end of the folding leg that is rotatably attached to the pivot joint. An engaging protrusion is provided at the free end of the piece, while an arc-shaped sliding surface centered on the pivot pin of the folding leg is provided at the pivot portion, and an opening leg is provided at both ends of this sliding surface. The present invention is characterized in that it is a folding leg of a heat-retaining container in which an engaging step portion and a closing leg engaging step portion are respectively formed.

(e) Effects of the invention According to this invention, an elastic body with flexibility is provided at the upper end of the folding leg to obtain the same effect as a metal elastic body. There is no need for installation fees, making it possible to significantly reduce costs.

In addition, since the metal elastic body is eliminated, breakage accidents and rusting of the metal elastic body can be prevented, and the reliability of the quality of the heat insulating container has been improved.

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

The drawing shows the folding legs of a heat-insulating container, and this heat-insulating container 1 has a container body 2 and an inner container disposed inside the container body with a heat insulating material 3 interposed therebetween, as shown in FIGS. 1 to 4. It is composed of 4 and 4.

The above-mentioned container body 2 has a lid 5 removably screwed onto its upper end for injecting liquid into the inner container 4, and handles 6 for transporting the heat-insulating container 1 on both sides of the upper end. It is pivotally mounted so as to be rotatable in the front-rear direction, and furthermore, a low member 7 is attached to the lower end.

The aforementioned inner container 4 is located at the lower front of the aforementioned bottom member 7.
A pot 9, which communicates with the inner container 4 and has a spout 8 for dispensing the liquid poured into the inner container 4, is protrudingly provided so as to be openable and closable.

Further, as shown in FIG. 2, pivot portions 11 for folding legs 10 are integrally protruded from the bottom of the bottom member 7 at equally spaced positions on a diagonal line.

The side wall 12 of the aforementioned pivot portion 11 is formed in a U-shape parallel to the diagonal line with the center side open, and a pair of pivot pin holes 13, 13 are provided on the left and right sides of the side wall 12. The closing part 14 is the folding leg 10
When the legs are opened, they come into contact with the folding legs 10 to restrict the opening of the legs.

Further, at the bottom of the pivot portion 11, the above-mentioned folding leg 10 is provided.
A sliding surface 17 having an appropriate dimension smaller than the rotation radius of the engaging protrusion 16 of the elastic piece 15 is connected to the aforementioned pivot pin hole 1.
3 is formed in an arc shape, and has an open leg engagement step portion 18 and a closed leg engagement step portion 1 at both ends thereof.
9 are formed respectively.

The above-mentioned folding leg 10 is formed into a rectangular box-like body as shown in FIG. It is pivoted for free movement. Further, an elastic piece 15 which is provided with flexibility by left and right notch grooves 21, 21 is integrally formed at its upper end. Furthermore, an engaging protrusion 16 is provided on the upper surface of the free end of the elastic piece 15 in a protruding manner.

As shown in FIG. 3, when the folding leg 10 configured in this way is in the open state, the engagement protrusion 16 engages with the leg engagement step 18 due to the flexibility of the elastic piece 15, and the folding leg 10 is opened.
0 maintains its legs spread so that it cannot rotate naturally.

In order to close the folding legs 10, the folding legs 10 are closed.
When the engaging protrusion 16 is rotated in the leg-closing direction, the engaging protrusion 16 and the open leg engaging stepped portion 18 are engaged and disengaged, and at the same time, the engaging protrusion 1
6 comes into contact with the sliding surface 17.

Therefore, the engagement protrusion 16 rotates while pressing the sliding surface 17 due to the flexibility of the elastic piece 15, and when it eventually reaches the closed leg position, it easily engages the open leg engagement step 19 as shown by the dashed line. Engage with moderation and maintain the closed state.

In addition, in order to open the folding leg 10, if the folding leg 10 is rotated in the opening direction, the engagement protrusion 16 will engage with and disengage from the closing leg engagement step 19, as described above, and eventually the opening leg will be engaged. It engages with the stepped portion 18 with a light moderation as shown in FIG. 3, and maintains the opened state.

In this way, the folding legs of the heat-insulating container of the present invention maintain the open and closed leg states through engagement between the elastic piece and the engaging stepped portion of the pivot joint, which eliminates the need for separate holding parts and reduces costs. This has made it possible to improve quality reliability. Furthermore, the appearance of the leg attachment part was simplified, making the product more beautiful.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a partially sectional side view of the heat-insulating container, Fig. 2 is a bottom view of the heat-insulating container, Fig. 3 is a cross-sectional view of the pivot joint, and Fig. 4 is a cross-sectional view of the heat-insulating container. FIG. 3 is an overall perspective view of the folding leg. DESCRIPTION OF SYMBOLS 10... Folding leg, 11... Pivoting part, 15... Elastic piece, 16... Engaging protrusion, 17... Sliding surface, 18
...Open leg engagement stepped portion, 19...Closed leg engagement stepped portion, 20
... Pivot pin.

Claims (1)

[Claims for Utility Model Registration] An elastic piece 15 imparted with flexibility by a cutout groove 21 is integrally formed on the upper end of the folding leg 10 rotatably attached to the pivot portion 11. , an engaging protrusion 16 is provided at the free end of the elastic piece 15;
The pivot portion 11 is provided with an arcuate sliding surface 17 centered on the pivot pin 20 of the folding leg 10, and an open leg engaging stepped portion 18 and a closed leg engaging step portion 18 are provided at both ends of the sliding surface 17. A folding leg of a heat-retaining container characterized in that a joint portion 19 is formed respectively.