JPH0337558Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a structure for locking a lid to a liquid container body in a liquid container such as an air pot.

FIG. 4 shows an air pot as an example of a liquid container to which the present invention is applied, in which a lid 2 is fitted onto the upper part of a liquid container main body 1, and is attached to the lid 2 so as to be openable and closable via a hinge 3 on the back. The liquid container body 1 has a shoulder body 5 attached to the upper part of a body 4, a bottom body (not shown) is connected to the lower part, and a vacuum double bottle is housed inside. The body 4 is made of metal, and its upper end is bent inward as shown in FIG. It is sealed with a gasket 7 to prevent water from entering inside.

An inner stopper (not shown) is placed in the opening in the center of the shoulder body 5, and the inner stopper includes a water pump (not shown) inserted into the vacuum double bottle and a liquid container main body. 1
A spouting pipe 8 extending to the front part of the spouting pipe 8 is attached, and the tip of the spouting pipe 8 is bent downward to form a spout 9.

An air pump 10 is provided in the lid 2,
A push button 11 provided on the top surface of the lid 2 is operated to pressurize the inside of the vacuum double bottle, and the liquid inside is poured out from a pumping pipe, through a spouting pipe 8, and from a spout 9. .

A protruding part 12 is formed in the front part of the lid 2 so as to cover the upper part of the spout 9. A hook 13 is installed inside the protruding part 12, and both ends of the hook 13 are attached to the inside of the shoulder body 5. The lid 2 is held in a closed state by being locked in a locking portion 14 provided in the lid.

Conventional technology The structure of this hook 13 was developed in the 1980s.
The one shown in No. 173254 is known. This hook 13 is a substantially M-shaped member made of plastic and has a spring property, and is provided with locking claws 15 facing outward at both ends thereof, and operating portions 16 formed on both sides are connected to the lid 2. It protrudes outward from a through hole 17 drilled in the side surface of the protruding part 12, and holds the lid 2 in a closed state by engaging with the locking pawl 15 or the locking part 14 of the shoulder body 5. By pressing the operating portion 16, the hook 13 is compressed and deformed in the width direction, and the locking pawl 15 is disengaged from the locking portion 14, so that the lid can be opened.

Problems that the invention attempts to solve: However, in this hook, the operating section 1
If 6 is pressed too hard, the operating portion 16 may enter inward through the through hole 17, as shown in FIG. 3, and there is a risk that the hook 13 may fall off from the protruding portion 12. In addition, when the lid 2 is open, the locking claw 1
5 protrudes from the lower surface of the protruding portion 12, so even if the locking pawl 15 is strongly pinched, the hook 13 may be similarly compressed and fall off.

This kind of situation can be prevented by restricting the compressible range of the hook 13 by some means, but when attaching the hook 13 to the lid 2, the hook 13 is compressed in the width direction and the lower part of the protrusion 12 is Insert from
Since the operation part 16 is fitted into the through hole 17 and installed,
If the compression range of the hook 13 is limited, it becomes difficult to attach the hook 13.

The present invention was devised in view of the above circumstances, and an object of the present invention is to provide a locking structure that makes it easy to attach the hook 13 and prevents the hook 13 from falling off due to excessive compression during use. That is.

Means for Solving the ProblemsThe locking structure of the present invention is such that a hook having a spring property is attached to the front inside of the lid which is fitted to the upper part of the liquid container body so as to be openable and closable. In a locking structure that is compressibly fitted and locks both ends of the hook to the liquid container main body, a locking structure is provided in which the hooks are normally spaced apart at opposite positions at both ends of the hook and are locked to the liquid container main body. It is characterized by protruding protrusions that come into contact with each other when compressed to a sufficient degree to release.

In the present invention, the structure of the hook 13 is almost the same as that of the conventional example, but protrusions 18 are provided at opposite ends of the hook 13 in positions facing each other. The protrusion 18 causes the hook 13 to expand in the width direction due to its elasticity, and the locking pawl 15 to be attached to the shoulder body 5.
When the hooks 13 are locked in the locking part 14 of the hooks, they are separated from each other, but when the hooks 13 are compressed in the width direction to a sufficient extent that the locking claws 15 are released from the locking part 14, they are separated from each other. They are starting to touch each other.

Function In the present invention, the hook 13 is normally expanded in the width direction due to its elasticity, the operating portion 16 protrudes from the through hole 17 as shown by the solid line in FIG. The lid 2 is held in a closed state with respect to the liquid container body 1 by being locked in the locking portion 14 .

Then, when the operation part 16 is pressed to open the lid 2,
As shown by the chain line in FIG. 1, the hook 13 is compressed and deformed in the width direction against its elasticity, the locking pawl 15 is released from the locking part 14, and the lid 2 is rotated around the hinge 3. , can be opened from the liquid container body 1.
In this state, the tips of the protrusions 18 come into contact with each other, so even if the operation part 16 is pressed too strongly, the hook 13 will not be compressed more than necessary, and the hook 13 will not fall off the protrusion 12. Furthermore, even if the locking pawl 15 is pinched in the lid open state, the hook 13 will not fall off because the protrusion 18 comes into contact with it.

When this hook 13 is distorted and compressed so that the projections 18 are offset from each other as shown in FIG. 2, the projections 18 are offset and can be easily compressed and deformed. It is possible to attach the hook 13 to the protrusion 12 by inserting it from above.

Effects of the invention According to the invention, the hook 13 is connected to the protrusion 1 of the lid 2.
2, the range of compressive deformation of the hook 13 is limited by the projections 18 coming into contact with each other. 13
will not be compressed too much and fall off from the protrusion 12.

Furthermore, if the positions of the protrusions 18 are forced to be deformed so that they are at odds with each other, it is possible to compress the hooks 13 beyond the range that can be compressed and deformed under normal conditions.
The hook 13 can be attached to the protrusion 12, and if necessary, the hook 13 can be removed for cleaning.

In the present invention, the shape of the hook 13 is not limited to the approximately M-shape described above, but may be approximately Ω-shaped, for example, as described as a conventional example in the above-mentioned publication. It's okay if it's hot.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional view of the main part showing the locking structure of the present invention, and FIG. 2 is a cross-sectional view of the main part showing the state of the hook in the present invention when it is attached and detached. Third
The figure is a sectional view of the main parts showing an inconvenient state in a conventional locking structure. FIG. 4 is a side view showing a part of an air pot as an example of a liquid container to which the present invention is applied, and FIG. 5 is an enlarged sectional view of the joint between the body and shoulder body of the liquid container. It is. 1...Liquid container body, 2...Lid, 13...Hook, 18...Protrusion.

Claims (1)

[Scope of utility model registration request] A hook 13 having a spring property is attached to the front inside of the lid 2 which is fitted to the upper part of the liquid container body 1 so as to be openable and closable.
It is fitted manually from the outside so that it can be compressed in the width direction.
In the locking structure for locking both ends of the hook 13 to the liquid container body 1, the hooks 13 are normally separated from each other at opposite positions at both ends, and the locking of the hook 13 to the liquid container body 1 is released. characterized by protruding protrusions 18 that come into contact with each other in a sufficiently compressed state,
Locking structure for liquid container lids.