JPS5833962Y2 - Air pot hook mechanism - Google Patents

Description

[Detailed description of the invention] This invention is based on the hook mechanism of the air pot, specifically, the main body housing the medium bottle and the lid body housing the air pump are pivotally connected at the rear, and the front is engaged and detached using the hook mechanism. The present invention relates to an improvement of the hook mechanism in the air pot.

Hitherto, a thermos bottle has been provided which can be easily assembled by force-fitting hook mechanism parts without using screws (Japanese Utility Model Publication No. 5,544,567).

In this case, in order to forcibly fit the engaging claw of the seat plate that supports the hook rod into the engaging hole in the spout cover, the engaging claw must be deformed greatly, and when the engaging claw is engaged, There was a concern that it would come off the spout cover's engagement hole due to its deformation or creep characteristics.

In particular, since the seat plate is constantly biased by a spring in the direction of falling off, there is a high risk of it falling off.

The present invention has been made in view of these problems, and provides a hook mechanism for an air pot that allows the hook mechanism parts to be easily assembled without using screws and that can effectively prevent the seat plate from falling off. The purpose is to

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the accompanying drawings, which are examples of the present invention.

In Fig. 1, 1 is the main body housing the medium bottle 2, 3 is the medium stopper fitted into the mouth of the medium bottle 2, and 4 is the water injection pipe 3a of the medium bottle 3.
5 is a spout cover fixed to the outer surface of the main body 1; 6 is a hinge part 7 at the rear of the upper end of the main body 1;
8 is an air pump housed inside the lid 6.

A spout cover 9 is integrally formed on the front part of the lid body 6,
A hook mechanism component is incorporated into this spout cover 9.

As shown in FIGS. 2 and 3, the spout cover 9 has a position regulating piece 10 protruding from the inner surface of the front wall, and is also provided with a recess 11, which engages with a horizontal guide groove 12 on the inner surface of both side walls. A stepped portion 13 is provided.

14 is a window hole provided above the spout cover 9.

As shown in FIGS. 4 to 6, the hook rod 15 has a pressing part 16 exposed from the window hole 14 at the upper part, a spring receiving part 17 projecting rearward at the center part, and a spring receiving part 17 at the lower part. Two hook claws 18 are provided that engage and disengage from receiving claws 5a (see FIG. 1) protruding from the upper end of the spouting section cover 5.

Further, a tongue piece 19 is provided protruding from the front end of the hook rod 15.
This tongue piece 19 can be fitted into a recess 11 on the inner surface of the front wall of the spout cover 9.

The seat plate 20 slidably supports the lower surface of the hook rod 15, and as shown in FIGS. 7 to 10, the seat plate 20 has a spring receiving part 21 protruding forward at the rear part, and vertical walls on both sides. It has 22.

A side piece 23 that slidably engages with the guide groove 12 and a locking pawl 24 that engages with the retaining step 13 and prevents it from being pulled out rearward are provided on the outer lower part of the vertical wall 22. It is provided.

Further, an inclined sliding surface 25 is provided at the inner lower portion of the vertical wall 22 and slides into contact with the corner 10 a of the position regulating piece 10 to push the vertical wall 22 outward.

A spring 26 is interposed between the spring receiving portion 21 of the seat plate 20 and the spring receiving portion 17 of the hook rod 15, and the hook rod 15 is moved in the direction of engagement with the receiving claw 5a, that is, in the left direction in FIG. is constantly energized.

The order of assembling the hook mechanism components having the above configuration will be explained.

First, the hook rod 15 is set inside the spout cover 9 of the lid body 6 so that its pressing portion 16 faces the window hole 14.

Then, with the spring 26 locked in the spring receiving portion 21 of the seat plate 20, the side piece 23 of the seat plate 20 is slid into the guide groove 12 of the spout cover 9 from inside the lid 6.

When the side piece 23 is slid to the back of the guide groove 12,
The sliding surface 25 of the seat plate 20 is located at the corner 10 a of the position regulating piece 10
As a result, the upper part of the vertical wall 22 of the seat plate 20 is pushed outward slightly, while the lower part of the vertical wall 22 is in contact with the guide groove 12.
Since the outward spread is restricted by the engagement step 13, the tip of the vertical wall 22 is twisted in the direction of the arrow in FIG. It elastically engages with the stepped portion 13.

When the locking pawl 24 engages with the engagement step portion 13,
The hook rod 15, the seat plate 20 and the spring 26 are installed inside the spout cover 9.

Then, a force is applied to the seat plate 20 by the spring 26 in the inward direction, that is, in the direction of the lid 6 falling off, but the vertical wall 22 of the seat plate 20 is urged outward by the position regulating piece 10. Therefore, no matter how much force is applied to the seat plate 20 in the falling direction, there is no fear that the locking pawl 24 and the engagement stepped portion 13 will disengage.

In addition, in the above embodiment, the locking pawl 2 is provided at the outer lower part of the vertical wall 22.
4, the sliding contact surface 25 is provided on the inner upper part of the vertical wall 22, but the locking claw 24 may be provided on the outer upper part of the vertical wall 22, and the sliding contact surface 25 may be provided on the inner lower part of the vertical wall 22.

Furthermore, the positional relationship between the locking pawl 24 and the sliding contact surface 25 may be the same even if the sliding contact surface 25 is provided at the outer front end of the vertical wall 22 and the locking pawl 24 is provided near the inner rear end of the vertical wall 22. It has the effect of

In this case, no twisting force acts on the vertical wall 22, but a bending force acts on the vertical wall 22.

As is clear from the above explanation, according to the present invention, by slidingly engaging the seat plate from the inside of the spout cover,
Since the engaging pawl is engaged with the engaging stepped portion of the spout cover while pushing the vertical wall outward on the sliding surface, even if the seat plate is subjected to a force in the direction of falling off due to the spring, Once the retaining pawl engages with the retaining step, there is no need to worry about it coming off.

[Brief explanation of drawings]

Figure 1 is a partially cutaway sectional view of the air pot according to the present invention, Figures 2 and 3 are central sectional views and bottom views of the spout cover of the lid body, Figures 4, 5, and 6. 7 is a front view of the hook rod, a rear view taken along the line 1--2 in FIG. 1...Body, 2...Medium bottle, 5a...
...Catch, 6...Lid, 8...Air pump, 9...Spout cover, 10...
Position regulating piece, 12... Guide groove, 13...
... Engagement stepped portion, 14... Window hole, 15...
・Hook rod, 16... Pressing part, 18...
・Hook claw, 20...Seat plate, 22...
Vertical wall, 23... Side piece, 24... Locking claw, 25... Sliding surface, 26... Spring.

Claims (1)

[Scope of utility model registration request] An air pot in which the main body housing the medium bottle and the lid body housing the air pump are pivotally connected at the rear, and the front part is engaged and detached using a hook mechanism, and the spout cover is integrally formed at the front of the lid body. A position regulating piece is protruded from the inner surface of the front wall of the spout cover, and horizontal guide grooves and retaining steps are formed on the inner surfaces of both side walls of the spout cover. It has a pressing part, a spring receiving part in the center part, a hook claw that engages and disengages with the receiving part provided on the main body in the lower part, and the seat plate that supports this hook rod from below has a spring receiving part in the rear part. It has vertical walls on both sides, and on the outside of the vertical walls there is a side piece that slidably engages with the guide groove from inside the lid, and a side piece that engages with the retaining step and is pulled out to the rear. A locking pawl is provided on the inside of the vertical wall, and a sliding contact surface is provided on the inside of the vertical wall that slides into contact with the position regulating piece to push the vertical wall outward. Air pot hook mechanism with a spring interposed between it and the receiving part.