JPS5934429Y2 - Liquid containers such as thermos flasks - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement in a liquid container such as a thermos flask, which is equipped with a so-called sliding lock member that moves horizontally in the front and back direction to engage and release the lock.

As shown in several embodiments in the drawings, the present invention pivots the rear part 2 of the lid body 1 to the container body 3, and connects the engaging part 6 of the locking member 5 disposed on the front part 4 of the lid body 1. In a liquid container such as a thermos flask configured to be able to be releasably engaged with a hooking portion 7 provided on a container body 3 by longitudinal and horizontal movement of the locking member 5, the spring that urges the locking member 5 in the hooking direction is a torsion spring. 8 or a plate spring 41.

The present invention will be explained in detail below based on embodiments shown in the drawings.

The first embodiment of the present invention, shown in FIGS. 1 and 2, relates to an air-filling thermos flask. The bellows pump 10 is compressed, compressed air is sent to the inner container 11 in the container body 3, and the liquid in the inner container 11 can be poured out to the outside via a liquid injection vibrator 12.

The lid main body 1 is made of synthetic resin and is formed into a predetermined shape.
The lower opening member 13 constituting the upper end portion of the container body 3 is pivotally connected using the lower opening member 13.

Further, a lock cover 15 is integrally formed on the front part (first left part) 4 of the lid main body 1, and a window hole 16 is provided above the lock cover 15.

A pedestal 17 is disposed below the lock cover 15, and the pedestal 11 is attached to a screw-screwing protrusion 19 provided on the lower surface of the lock cover 15 using screws 18.

A lock member 5 is guided and supported on the base 17.

20.20 is a pair of left and right guide holes provided in the pedestal 17,
A pair of left and right steel legs 21, 21 of the lock member 5 are inserted through the lock member 5.

Reference numeral 22 denotes a guide wall provided on the lower surface of the lock cover 15 to restrict the movement of the lock member 5 in the vertical direction, and 43 and 43 denote a pedestal 17 to restrict the movement of the lock member 5 in the left-right direction.
A pair of left and right guide walls are formed on the upper surface of the.

The locking member 5 consists of a bushing part 23, a body part 24, and the pair of leg-like steels 21.21, and the lower end of the leg-like steel 21 has a
A hook-shaped engaging portion 6 facing forward is formed.

A pair of shaft support walls 25.degree. 25 are provided on the rear upper surface of the pedestal 1T, and a torsion spring 8 is wound around and supported on a shaft 26 that extends horizontally between the shaft support walls 25,25.

The operating end 27 of the torsion spring 8 abuts against the spring bearing part 28 of the locking member 5, while the other end 29 abuts against the base 17, and the locking member 5 is biased forward by the spring 8.

FIG. 1 shows that the engaging part 6 of the locking member 5 and the engaging part 7 of the container body 3 (specifically, the lower mouth member 13) are engaged, and the lid body 1
The figure shows a state in which it is locked (engaged) with the container body 3.

This state is maintained by the action of the operating end 27 of the torsion spring 8 urging the locking member 5 forward.

To release the lock, press the bushing portion 23 that protrudes forward from the window hole 16 with your fingers, and then press the locking member 5.
What is necessary is just to slide backward and release the engagement of both the engagement parts 7 and 6.

At this time, the operating end 27 of the screw spring 8 moves in the first clockwise direction, and the screw spring 8 is deformed in the winding direction, so a restoring force is stored, and when the finger is removed from the bushing part 23, the lock member 5 is automatically moved. to return to its original position.

In addition, in FIG. 1, 30 is an outer case (a part of the container body 3).

), 31 is a hook valve, 32 is a restoring spring, 33 is a bellows lower plate, and 34 is a spout hole provided in the lower mouth member 13.

In the first embodiment, the operating end 27 of the torsion spring 8
Although the actuating end 27 is in contact with the body portion 24 of the locking member 5, the operating end 27 may also be in contact with the bushing portion 23, as shown in phantom lines in FIG.

A second embodiment of the present invention shown in FIG. 3 is characterized in that a torsion spring 8 that urges the lock member 5 forward (in the engaging direction) is supported by the lid body 1 (specifically, the lock cover 15). do.

In this embodiment, a pair of shaft support walls 2 are provided on the lower surface of the lock cover 15.
5 and 25 are provided, and a rigid spring 8 is wound around and supported on a shaft 26 which is horizontally suspended between these shaft support walls 25 and 25.

The operating end 27 of the torsion spring 8 is in contact with the wall 35 of the locking member 5, and the other end 29 is in contact with the lower surface of the lock cover 15.

Note that 26a is a shaft accommodating groove provided in the shaft support wall 25, and the shaft 26 is
can be inserted into the shaft support wall 25 from below.

Further, the tip 27a of the operating end 27 of the screw 17 spring 8 is bent to prevent the torsion spring 8 from falling off downward.

In the third embodiment of the present invention shown in FIG.
It is characterized by being supported by

In this embodiment, a torsion spring 8 is wound around and supported on a spring support shaft 36 fixed horizontally to the body 24 of the lock member 5, and one end 31 of the torsion spring 8 is inserted into the locking hole 39 of the lock cover 150, and the other end 3
8 are respectively locked in the locking holes 40 of the base 17 so as to be slidable up and down, thereby applying a force to the locking member 5 in the forward direction.

Note that 36a is a groove into which the shaft 36 is inserted.

Further, a shaft 36 projects laterally from the inner surface of the side wall of the locking member 5.
can also be formed integrally with the locking member 5.

A fourth embodiment of the present invention shown in FIG. 5 uses a plate spring 41 in place of the torsion spring 8 in each of the above embodiments, thereby urging the locking member 5 forward (in the engaging direction).

In this embodiment, the operating end 43 located at the upper end of the leaf spring 41 is brought into contact with the spring receiver of the locking member 5 against the wall 42, and the fixed end 44 located at the lower end of the leaf spring 41 is brought into contact with the bellows lower plate 42.
It is fixed in the fixing groove 45 of the extension part of No. 3.

The torsion spring 8 in the first and second embodiments can also be replaced with the leaf spring 41, but in that case, the base end of the leaf spring 410 is fixed to the base 17, the lock cover 15, etc.
The locking member 5 may be urged in the engaging direction by the tip (operating end) of the leaf spring 41.

The present invention can be configured in various ways other than those shown in the above embodiment, for example, the torsion spring 8 in the above first embodiment.
The bellows lower plate 33 can be set at a supporting position.

Further, the means for restraining the left and right movement of the lock member 5 and guiding and supporting it may be provided on the lock cover 15 or the like in addition to being provided on the pedestal 11 as shown in the first embodiment.

Since the present invention has the above-mentioned configuration, it can produce the following effects compared to the conventional example in which a coil spring is used to bias the so-called sliding lock member in the engaging direction.

■ In conventional examples using coil springs, the coil spring holding means must be formed in a complicated manner to prevent the coil springs from bending to the left or right during operation and to ensure smooth expansion and contraction of the coil springs. Even if the holding means of the leaf spring has a simple structure,
Does not adversely affect the biasing action.

■ When coil springs are used, a considerable amount of space is required in the horizontal direction to arrange them, but in the present invention, the space required to arrange torsion springs or leaf springs is small, and moreover, it takes up ample vertical space. Since it can be used, it becomes easy to design the liquid injection/locking part of the liquid container, and the iron part can be formed compactly.

■ If a coil spring is used, as mentioned above, it requires a considerably large space in the horizontal force direction, so there is a problem that its placement is limited to the lower part of the locking member, but according to the present invention, it is limited to the above position. First, the operating end of the torsion spring or leaf spring can be freely determined.

For example, as shown by the imaginary line in Figure 1, it is also possible to set the operating end of the torsion spring or leaf spring on the back surface of the bushing part of the locking member. Since a counterforce on the same line of action as the external force acts on the operating end of the torsion spring, etc., the rotational moment acting on the locking member is small, and the locking member can be smoothly moved back and forth and horizontally.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway side view of the main parts of the first embodiment of the present invention;
Fig. 2 is a perspective view of a part thereof, Fig. 3 is a vertical cross-sectional side view of the main part of the second embodiment of the present invention, Fig. 4 is a longitudinal cross-sectional side view of the main part of the third embodiment of the present invention, FIG. 5 is a longitudinal sectional side view of the main parts of the fourth embodiment of the present invention. 1... Lid body, 2... Rear, 3...
...Container body, 4...Front part, 5...
Lock member, 6... Engagement portion, 7... Engagement portion, 8... Torsion spring, 41... Leaf spring.

Claims (1)

[Scope of utility model registration request] The rear part of the lid body is pivotally connected to the container body, and the engaging part of the locking member disposed at the front part of the lid body can be removably engaged with the engaging part provided on the container body by longitudinal and horizontal movement of the locking member. 1. A liquid container such as a thermos flask configured as above, wherein the spring biasing the locking member in the engaging direction is a torsion spring or a plate spring.