JPS5925334Y2 - Lid opening/closing device for thermos bottles, etc. - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a lid opening/closing device for a thermos flask, a tabletop pot, etc., and particularly to a lid opening/closing device for covering the top surface of a dish-shaped water spout formed on the top of a container exterior body.

This type of conventional lid opening/closing device simply pivots the tail end of the lid (the end on the side where the handle is provided on the exterior body) to the handle or the upper part of the exterior body, and attaches the tail end to the tail end. Furthermore, a small lever is protruded and the lid can be opened by operating the lever.

In addition, a so-called automatic stopper is provided at the mouth of the inner container such as a vacuum double bottle, and when the lid is opened, a valve body inside the automatic stopper is linked to open the contents so that the liquid can be poured out, and then close the lid. It is known that the valve opening can be closed by the lid, but if the rear end of the lid is simply pivoted to the top of the handle, etc.
When a desktop thermos flask is accidentally knocked over, the lid opens and the valve body of the automatic stopper opens, causing the contents to inadvertently leak out.

Further, the automatic stopper or normal stopper that seals the bottle opening comes off from the bottle opening due to the impact when the bottle is turned sideways, and the liquid content similarly flows out.

Therefore, in the above-mentioned automatic stopper or tabletop thermos flask having a normal stopper, the above-mentioned inconvenience can be solved by locking the lid in the closed state, and at the same time, the lid can be opened and closed in a one-touch manner with one hand. A lid device equipped with a locking mechanism that can be used has already been provided, as known from Japanese Utility Model Publication No. 43-20357 and Japanese Utility Model Publication No. 46-8943-4.

However, these locking mechanisms are installed in parallel with the lid, and the lid opens when the unlocking operation is performed at a location other than the lid, which gives the operator a sense of discomfort, and when the lid is closed. Even if the lid is locked, it is difficult to confirm unless the lid is closed using a locking mechanism, which creates a sense of distrust for the operator.If the lid is closed using a locking mechanism, the operation is indirect and there is likely to be a lot of resistance. be.

Furthermore, since the locking mechanism and the lid must be attached separately, the assembly procedure and structure tend to become complicated.

This invention uses a new type of locking mechanism in which a locking member provided on the lid acts on a locking part on the side that pivots the lid, thereby eliminating the above-mentioned drawbacks for lids for thermos flasks, etc. The purpose is to provide a switchgear.

Therefore, in this invention, in a thermos bottle, etc., in which the rear end of the lid is pivoted to the rear upper end of the main body to open and close the lid,
A locking portion is provided in the vicinity of the pivot portion of the main body portion, and a locking member including an engaging portion that locks and disengages from the locking portion is set to a locked position where the retaining portion is engaged with the locking portion. , is attached to the rear end portion of the lid so that the locking portion can be selectively moved to two positions: an unlocked position in which the locking portion is disengaged;

The locking member is attached to the lid and moves together with the opening and closing of the lid, and when it is displaced between two positions on the lid, it is engaged with and disengaged from the locking part of the main body to which the lid is pivotally attached, locking and locking the lid. Perform the cancellation.

This locking effect is achieved regardless of the structure in which the locking member is attached to the lid.

To explain the embodiments, please refer to Fig. 1, Fig. 2, and Fig. 3.
In the figure, reference numeral 1 denotes an exterior body, on the top of which is formed a saucer-shaped water spout 2, and on the back of which a handle 3 is attached.

A heat-insulating inner container 4 such as a vacuum double bottle is fixed in a well-known structure within the exterior body 1, and an automatic stopper 6 or a normal stopper (not shown) is tightly fitted into the bottle opening 5. .

As is well known, the automatic stopper 6 has a part of an operating member 7 for operating a valve body (not shown) protruding from its upper surface, and when the lid 8 is closed, the valve is closed via the member 7, and the lid 8 is closed. By opening, the valve is opened via the member 7.

The rear end of the lid 8 is pivotally attached to a shaft 9 provided at the top of the handle 3 (or the exterior body 1).

In the above structure, a box-shaped cavity 10 is provided at the rear end of the lid 8, and a locking member 12 having a lever-shaped operation part 11 protruding from its tail end is slid in the front-rear direction into the cavity 10. The interior is movable.

The locking member 12 is provided with an elongated hole 13 through which the shaft 9 is inserted approximately at the center thereof, and has the hollow space 10 at its front end.
a spring portion 14 that engages with the front wall of and urges the member 12 backward;
form into one body.

Therefore, the member 12 has a spring portion 14 made of synthetic resin material or the like.
Although it is desirable that the spring portion 14 be molded integrally with the lock member 12, the spring portion 14 does not necessarily have to be integral with the lock member 12. For example, a separate spring may be interposed between the front wall of the cavity 10 and the lock member 12. The rear biasing may be performed by

A locking part 16 is provided on the lid pivoting part provided with the shaft 9 at the upper end of the handle 3, with which the engaging part 15 of the locking member 12, which is biased backward, engages and disengages; A semicircular escape space 17 is formed to allow the engaging portion 15 to slide so that the lid 8 can be opened when the member 12 is pushed forward.

If necessary, a space 18 is provided at the top of the handle 3 into which the operating section 11 protruding from the locking member 12 is inserted when the lid 8 is open, and the tail end 11a of the operating section 11 is engaged. A locking recess 19 is provided for locking the lid 8 in an open state.

Since the locking member 12 is biased backward by the spring portion 14, when the lid 8 is closed, the locking member 12 slides backward within the space 10 within the range limited by the elongated hole 13 and the shaft 9. It is moved so that the retaining part 15 faces above the locking part 16 on the handle 3.

Therefore, even if the operating part 11 is pushed downward, the member 12 cannot be rotated, and the member 12 is moved into the box-shaped cavity 1 at the rear end of the lid 8.
0, the earthen wall of the cavity 10 faces the top surface of the locking member 12, so even if you try to open the lid 8, the upper wall of the cavity 10 will come into contact with the locking member 12. I can't open it.

In other words, the lid 8 is completely locked, and even if the tabletop pot falls over, the lid 8 will not open, so the valve of the automatic stopper 6 may open inadvertently, or the stopper may fly out of the bottle opening 5 due to the impact of the fall. There are no inconveniences at all.

To open the lid 8, push the operating section 11 forward.

As a result, the locking member 12 is moved forward against the bias of the spring portion 14 within the range limited by the elongated hole 13 and the shaft 9, and the engaging portion 15 is moved from above the locking portion 16. death,
It faces onto the semicircular escape space 17.

Therefore, if the operating section 11 is pushed downward in this state, the locking member 12 will move together with the lid 8 as shown by the imaginary line 8' in FIG.

It rotates as shown at 11'.

That is, the lid 8 is opened, the automatic stopper 6 opens the valve, and the liquid content can be poured out from the inner container.

The locking member 12 can be further rotated along the escape space 17 from the position 11'.

If the handle 3 is provided with a cavity 18 into which the operating portion 11 is inserted together with the escape space 17, the lid 8 can be opened to the position indicated by 8'' in the figure.

That is, the operating part 11 rotates to the position indicated by 11'' in the figure, and its tail end 11a engages in the locking recess 19 and is locked by the biasing force of the spring part 14, so that the lid 8 is held in an almost upright position. to hold.

This is convenient when pouring hot water, cold water, etc. into the inner container 4.

To close the lid 8, the iron lid 8 may be pushed counterclockwise in FIG. 1.

At this time, even if the tail end 11a of the operation part 11 is engaged with the locking recess 19, by keeping the recess 19 shallow,
The operating portion 1 resists the spring portion 14 that biases the locking member 12.
1 escapes from the locking recess 19.

When the lid 8 is closed, the locking member 12 escapes from the escape space 17, slides backward by the spring portion 14, and engages the engaging portion 1.
5 facing above the locking part 16.

In the embodiments described above, the lid 8 is opened by pushing and rotating the operation part 11 downward, but as shown in FIGS. 4 and 5, the lid 8 or the locking member 12 has a If the spring 20 that biases the lid 8 in the opening direction is activated, the lid 8 will be automatically opened by the action of the spring 20 simply by pushing the locking member 12 forward.

The spring 20 is supported by winding its base and inserting the shaft 9 into the spring 20. The fixed end 20a is fixed to the handle 3 or the exterior body 1 at a suitable position, and the free end 20b is fixed to the lid 8 or the locking member 12. Engage in place.

In the illustrated case, a sleeve 10a with an open lower end is provided on the front wall of the cavity 10 of the lid 8, and the free end 20b of the spring 20 is engaged with the upper end of the sleeve HOa.

Further, the fixed end 20a side is also inserted through the inside of the sleeve 10a and fixed at a desired position.

In each of the above embodiments, the locking member 12 is of a sliding type, but in the embodiments shown in FIGS. 6 and 7, it is of a rotating button type.

A lid 8 is pivotally attached to the upper end of the handle 3 with a shaft 9, and an operating lever part 8a is integrally formed above the rear end. The formed rotary button type locking member 32 is fitted into the recess 30.

The locking member 32 has two pivoting convex portions 33 protruding from both sides of its center portion, and is inserted into a support hole 34 located diagonally above the shaft 9 formed on both sides of the recess 30. At the same time, a protrusion 35 protruding from one location on the circumferential surface of the protrusion 33 is configured so that the member 32 can be rotated in a seesaw shape.
The convex portion 33, which can be split into two and elastically deformed, is attached to one of the concave portions 36 and 37 provided at two locations in the support hole 34.
The rotational posture of the locking member 32 is restricted by engaging the locking member 32 with its elasticity.

The locking member 32 further includes a retaining step portion 3 on its rear lower surface.
8, and a locking portion 39 is provided protruding from the upper end of the handle 3 to engage with the engagement step portion 38 and lock the lid 8 when the lid 8 is closed.

In the above, as shown by the solid line in FIG. 6, with the lid 8 closed, push down the rear side of the operating surface 31 of the locking member 32 to release the protrusion 35 of the protrusion 33 that fits into the support hole 34. The hole 3
4, the engagement stepped portion 38 of the locking member 32 engages with the locking portion 39 of the handle 3.

The lid 8 rotates around a pivot shaft 9, and the locking member 32 is attached to a support hole 34 on the lid 8 that is eccentric from the shaft 9, so that the engagement step 38 of the locking member 32 is attached to the handle 3. It is impossible to open the lid 8 while it is engaged with the locking portion 39.

That is, the lid 8 is completely locked.

To open the lid 8, the front side of the operating surface 31 of the locking member 32 is pressed down.

As a result, the protrusion 35 that engages with the recess 36 of the support hole 34 escapes as the protrusion 33 is elastically deformed, the locking member 32 rotates counterclockwise, and the protrusion 35 engages with the recess 36 of the support hole 34 .
7 and is locked at the position shown by the imaginary line 32'.

Therefore, the engaging step portion 38 is disengaged from the locking portion 39, and the lid 8 can be opened as shown by a phantom line 8'' in the figure.

If the spring 40 is applied to the lid 8 in the direction of opening the iron lid 8 as shown by the imaginary line in the figure, the lid 8 will be automatically opened when the locking member 32 is released from the lock. .

Instead of providing the engagement unevenness as described above between the protrusion 33 of the locking member 32 and its support hole 34, as shown in FIG.
A elastic protrusion 35a that elastically engages with the protrusion 35a may be provided at the inner bottom of the recess of the lid 8 to lock the locking member 32 in the locking position and the unlocking position in a click-stop manner. good.

Further, a spring (not shown) may be applied to the locking member 32 in the direction in which the lid 8 is locked (in the direction in which the engaging step portion 38 and the locking portion 39 engage). One of the recesses 36 or the entire click-stop type unevenness can be omitted.

FIG. 9 shows still another embodiment in which a locking member 42 is pivotally supported in a recess 30 of a lid 8 with a shaft 43 and is operated by an operating lever 41.

The operating lever 41 is pivotally attached to a suitable position on the lid 8 with a pin 44, and a pin 46 protruding from the locking member 42 is inserted into an elongated hole 45 at its tip to connect both members 41 and 42 so as to interlock. .

The locking member 42 is biased by a spring 47 in a direction in which its retaining portion 48 engages with a locking portion 49 of the handle 3.

Thus, when the lid 8 is closed, as shown by the solid line in the figure,
The engaging portion 48 of the locking member 42 engages with the locking portion 49 to completely lock the lid 8 from opening.

When the operating lever 41 is rotated as shown by a phantom line 41' in the figure, the locking member 42 is also rotated to the unlocked position as shown by a phantom line 42'.

Therefore, the lid 8 can be opened.

In each of the above-mentioned embodiments, it goes without saying that the locking part for locking the locking member in the locked position may be provided on the exterior body instead of on the handle. The locking portion is provided on the main body portion.

According to this invention, the locking member attached to the lid and moving in unison with the lid locks and unlocks the lid by engaging and disengaging the locking portion of the main body portion to which the lid is pivotally attached. The assembly procedure and structure are simplified, such as simply attaching the attached lid to a designated part of the main body, and it can be further simplified by using the pivot shaft of the lid to attach the locking member, making it easy and inexpensive to use. obtain.

In addition to the locking member always moving together as part of the lid, locking and unlocking operations are performed on the lid, opening and closing the lid,
Locking and unlocking are visually recognized as having a direct relationship, so that the operator does not feel strange or distrustful.

[Brief explanation of the drawing]

FIG. 1 is a partial longitudinal sectional view of the embodiment, FIG. 2 is an enlarged longitudinal sectional view of the main part, FIG. 3 is an exploded perspective view of the same, and FIG. 4 is a longitudinal sectional view showing the main part of another embodiment. FIG. 5 is a cross-sectional view taken along line v-V in FIG. 4, FIG. 6 is a vertical cross-sectional view showing the main parts of another embodiment, FIG. 7 is an exploded slope view, and FIGS. 8 and 9. 2A and 2B are longitudinal cross-sectional views of main parts of still other embodiments, respectively. 1...Exterior body (main body part), 3...Handle (main body part), 4...Insulating inner container, 6...
... Automatic stopper, 8 ... Lid 9 ... Shaft,
10... Blank space, 11... Operation section, 12
゜3242...Lock member, 13...
Long hole, 14...Front part 15.48...
・Engagement part, 16.39.49...Locking part, 17
...Escape space, 18...Empty space, 19.
...Latching recess, 20... Spring, 30...
... recess, 31 ... operation surface, 33 ...
... Pivot protrusion, 34 ... Support hole, 35 ...
・・Protrusion, 36.37・・・・Concavity, 35 a・・
... Spring protrusion, 36a, 37a ... Recess,
40... Spring, 41... Operation lever,
43...Shaft, 45...Elongated hole, 46...Pin, 47...Hane.

Claims (9)

[Scope of utility model registration request] (1) In a thermos flask, etc., in which the rear end of the lid is pivoted to the rear upper end of the main body part to open and close the lid, a locking part is provided near the pivot part of the main body part, and the locking part A locking member having an engaging portion that engages and disengages from the locking portion can be placed in two positions: a locked position where the engaging portion is locked to the locking portion, and an unlocked position where the engaging portion is disengaged from the locking portion. A lid opening/closing device for a thermos flask or the like, characterized in that the lid opening/closing device is attached to the rear end of the lid so as to be selectively moved to a certain position. (2) A space is provided at the rear end of the lid, a locking member that slides between a locking position and an unlocking position is supported within the space, and a retaining part of the locking member is provided in the main body. A locking portion that can correspondingly lock the locking portion and a semicircular relief space that allows the locking portion of the member to slide when the locking member is operated to the unlocked position are provided. A lid opening/closing device according to claim (1) for utility model registration. (3) The locking member is provided with an elongated hole that allows the member to slide between the locked position and the unlocked position, and the lid is pivotally attached to the main body portion and a shaft is inserted through the hollow space. The lid opening/closing device according to claim (2) of the utility model registration, which is inserted into the elongated hole. (4) Utility model registration claim (2) or (3) that is provided with a spring that urges the locking member toward the locking position.
Lid opening/closing device as described. (5) A recess is provided in the rear end of the lid, a locking member that rotates between a locking position and an unlocking position is supported in the recessing, and the locking member is formed on the lower surface of the main body. The lid opening/closing device according to claim (1) of the utility model registration, wherein the locking step portion is provided with a locking portion that can be locked and released. (6) A pivoting convex portion that engages with the lock member support hole formed in the recess is formed on the lock member, and the convex portion is formed into two halves so as to be elastically deformable in the diametrical direction; Utility model registration claim (5) describes that a protrusion is provided on the peripheral surface, and two four parts are provided in the support hole that engage with the protrusion and lock the locking member in the lock position and the unlock position. lid opening/closing device. (7) The locking member is provided with two recesses, and the recesses are provided with elastic protrusions that engage with the recesses to lock the locking member in the locking position and the unlocking position. ) The lid opening/closing device described in ). (8) The lid opening and closing device according to claim (5), which is a registered utility model, is provided with a spring that urges the locking member toward the locking position. (9) Practical use in which a spring is provided that biases the locking member toward the locking position, and an operating lever for rotating the locking member to the unlocking position is pivotally mounted on the lid to connect the lever and the locking member. A lid opening/closing device according to claim (5) for patent registration. 00) The lid opening/closing device according to any one of claims (1) to (9), wherein the lid is provided with a spring that biases the lid in an opening direction.