JPH0748215Y2 - Liquid container bellows pump operating device - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bellows pump operating device used for a liquid container such as an air pot.

[0002]

2. Description of the Related Art When a bellows pump is used to discharge the liquid inside a liquid container such as an air pot, a first lever applied to the upper plate of the bellows pump in order to make the operation of the bellows pump lighter. A two-stage lever mechanism is provided by linking the second lever to
A means for increasing the lever ratio by this is known.

When the bellows pump is not operated, the second lever is tilted so as to be flush with the upper surface of the lid, but when it is operated, it is engaged with the second lever via a cam. The second lever is raised on the top surface of the lid by sliding the lock knob.

The bellows pump operating device having the above structure has an advantage that the bellows pump can be lightly operated by the action of the lever mechanism by pushing down the second lever standing on the upper surface of the lid with the fingertip.

However, from the standpoint of the consumer who is accustomed to the push button method of operating the bellows pump by pushing down the push button, the above-mentioned lever type operation device gives the image that the appearance is easily damaged.
There is also a problem that the operation method gives a feeling of strangeness compared to the push button method.

For this reason, there is known an air pot in which a push button can be lightly operated by using a lever mechanism while depending on the push button system (Japanese Utility Model Laid-Open No. 2-29632).

The air pot disclosed in the above publication has a link mechanism for raising the push button in association with the movement when the lock knob is slid, and the push button is connected to one end and the other end is a bellows pump. It has a lever mechanism facing up.

[0008]

The device disclosed in the above publication has a drawback that the structure is complicated because the link mechanism and the lever mechanism are provided separately.

Further, in order to increase the lever ratio, a part of the lever mechanism is formed in a ring shape so as to surround the periphery of the upper end portion of the bellows pump, so that there is a drawback that the lever mechanism becomes remarkably large.

Therefore, it is an object of the present invention to provide a bellows pump operating device having a simple structure in a bellows pump operating device using a combination of a push button system and a lever mechanism.

[0011]

A bellows operating device according to a first means for solving the above problems is a first lever 3 attached to a back surface of a lid 1 of a liquid container and extending above a bellows pump 2. , A second lever 4 mounted above the first lever 3 and extending beyond the tip of the first lever 3, a slider 6 engaged with a cam groove 5 of the second lever 4, and the slider 6 are moved. It is composed of a lock knob 7 and a push button 8 which is engaged with the tip of the second lever 4 and protrudes and retracts from the lid 1. When the lock knob 7 is retracted, the slider 6 retracts and the second lever 4 and push button. 8 is moved down and the lock knob 7 is moved forward, the slider 6 moves forward to enter between the tip of the first lever 3 and the intermediate portion of the second lever 4, and at the same time the second lever 4 is moved.
The push button 8 is projected to the upper surface of the lid 1 by raising the lever 4.

The bellows operating device according to the second means is a lever 9 attached to the back surface of the lid 1 of the liquid container and extending above the bellows pump 2.
The rotating member 11 supported by the pin 10, the rotating member 11
A push button 8 which is engaged with and is retracted from the lid 1 in accordance with its rotation, a slider 12 which slides along the lever 9 and a lock knob 7 which is engaged with the slider 12, and a cam is attached to the rotating member 11. When the groove 14 is provided, the second pin 15 is inserted into the cam groove 14 and the slider 12, and the lock knob 7 is retracted, the rotation angle of the rotating member 11 is 0 and the push button 8 is in the lowered state. And the second pin 15 is at the rear end of the cam groove 14 which is inclined downward, and when the lock knob 7 is advanced, the rotation of the rotation member 11 is caused by the advancement of the second pin 15.
Is rotated and the push button 8 engaged with the rotating member 11 is projected onto the upper surface of the lid 1.

[0013]

In the bellows pump operating device according to the first means, the push button 8 is in the lowered position when not operated. When the lock knob 7 is moved forward when operating the bellows pump 2, the slider 6 moves, the second lever 4 gradually rises due to the movement of the slider 6, and the push button 8 engaged with the tip of the second lever 4 is placed on the top surface of the lid 1. Stick out to. If you push down the push button 8 with your fingertips,
When the second lever 4 is pushed down and the second lever 4 is lowered, the first lever 3 is also pushed down via the slider 6.
When the first lever 3 is lowered, the bellows pump 2 contacting it is compressed.

When the finger is released from the push button 8, the first lever 3, the second lever 4 and the push button 8 return to their original state due to the restoring elasticity of the bellows pump 2.

In the bellows pump operating device according to the second means, the push button 8 is in the lowered position when not operated. When operating the bellows pump 2,
When the lock knob 7 is moved forward, the slider 12 moves forward, and the second pin 15 moves in the cam groove 14 of the rotating member 11, while rotating the rotating member 11 about the first pin 10. When the rotating member 11 rotates, the push button 8 engaged with the rotating member 11 projects to the upper surface of the lid 1. When the push button 8 is pushed down with a fingertip, the lever 9 is pushed down, and the bellows pump 2 in contact with the lever 9 is compressed.

When the finger is released from the push button 8, the lever 9, the slider 12 and the push button 8 return to their original state due to the restoring elasticity of the bellows pump 2.

[0017]

EXAMPLE An example (first example) of the above-mentioned first means is shown in FIGS. This embodiment is applied to an air pot. As shown in FIG. 1, in the air pot, the bellows pump 2 is housed inside the lid 1, and the air hole 19 provided in the lower plate 18 of the bellows pump 2 is provided.
Is facing the mouth of the medium bottle 20. Further, an opening / closing valve 22 is provided on the upper plate 21 of the bellows pump 2, and the upper plate 21 is pushed together with the opening / closing valve 22 to compress the bellows 23, and air is blown into the inside bottle 20 from the air hole 19 described above. It is supposed to be sent. When the pressing of the on-off valve 22 is released, the force of the internal spring 24 raises the on-off valve 22 to open it, and the bellows pump 2 returns to its original state.

As shown in FIG. 2, the operating device for the bellows pump 2 includes a lock knob 7, a guide rail 25, and
It is composed of a first lever 3, a second lever 4, a slider 6 and a push button 8.

A push button hole 2 is provided near the front end of the lid 1.
6 is provided, and ribs 27, 27 are integrally formed on the back surface of the lid 1 along both sides of the push button hole 26. Further, a knob guide groove 30 is provided along the outside of one rib 27.

Slider guide grooves 28 are provided in the ribs 27, 27. The slider guide groove 28 has a horizontal portion 29 and a bent portion 31 bent downward from the front end of the horizontal portion 29. The second part is behind the rear end of the horizontal part 29.
A fulcrum pin hole 32 for the lever 4 is provided. The bent portion 31 is formed with a radius of curvature centered on the fulcrum pin hole 32. Further, fulcrum recesses 33 for the first lever 3 are provided at the rear ends of the ribs 27, 27.

In the lock knob 7, the knob portion 34 is inserted into the knob guide groove 30 and protrudes to the upper surface of the lid 1. Further, the plate piece 35 having the knob portion 34 projecting thereon is slidably supported on the guide rail 25 attached along the knob guide groove 30 on the back surface of the lid 1 (see FIG. 5). Further, a cam plate 36 is provided downward on the lower surface of the plate piece 35, and a cam groove 37 is provided in the cam plate 36. The cam groove 37 has a shape that matches the shape of the bent portion 31 of the slider guide groove 28 described above.

The first lever 3 extends to the upper surface of the open / close valve 22 of the bellows pump 2 (see FIG. 3) and is in contact with the open / close valve 22. The slider 6 is attached to the first lever 3.
Are fitted so that they can slide in the front-back direction. The slider 6 has pins 38 protruding on both sides.

The second lever 4 has a fulcrum pin 39 at its rear end (see FIG. 2), and a sloping portion 41 inclined forward from the fulcrum pin 39 to the middle portion thereof, and extending from the middle portion to the front end. In the meantime, the push button fitting portion 42 is raised. The inclined portion 41 has a downward U-shaped cross section,
An opening 43 for loosely fitting the first lever 3 is provided on the upper surface thereof. Cam grooves 5 are formed on both side surfaces of the inclined portion 41.

The fulcrum pin 39 of the second lever 4 is inserted into the fulcrum pin hole 32 provided in the ribs 27, 27, and the pin 38 of the slider 6 is inserted into the cam groove 5.
The front end portion of the first lever 3 is loosely fitted in the opening 43 of the second lever 4. The pin 38 of the slider 6 is also inserted into the slider guide groove 28 of the lid 1, and the other pin 38 is also inserted into the cam groove 37 of the lock knob 7 (see FIG. 5).

The push button fitting portion 42 of the second lever 4 faces the lower portion of the push button hole 26 of the lid 1, and the box-shaped push button 8 having an open bottom is fitted into the fitting portion 42. To be done.

The upper surface of the push button 8 is at the same height as the upper surface of the lid 1 (see FIG. 3), the lower end of its rear end surface rests on the intermediate portion of the second lever 4, and its front end surface is the bellows pump 2. It is placed on the outer peripheral portion of the lower plate 18.

The bellows pump operating device of the first embodiment is constructed as described above. As shown in FIG. 3, the lock knob 7 is located at the rear end of the knob guide groove 30 and the cam groove 37 in the non-operated state. Slider 6 with the fitted pin 38
Is also located rearward and is at the rear end of the cam groove 5 of the second lever 4. Further, the push button 8 is in the most lowered state, and the upper surface thereof is located at the same position as the upper surface of the lid 1. In this state, the push button 8 is placed on the second lever 4, and the slider 6 fitted in the cam groove 5 of the second lever 4
Since the pin 38 is fitted in the horizontal portion 29 of the slider guide groove 28, the push button 8 is in the locked state.

On the other hand, when the bellows pump 2 is operated, when the lock knob 7 is gripped with a fingertip and slid forward, the slider 6 advances the horizontal portion 29 of the slider guide groove 28. Further, since the pin 38 of the slider 6 is also fitted in the cam groove 5 provided in the inclined portion 41 of the second lever 4, the second lever 4 moves as the slider 6 moves forward.
Gradually rises, and the push button 8 placed in the middle thereof is projected from the upper surface of the lid 1 (see FIG. 4).

When the slider 6 reaches the most advanced position, the lower surface of the front end of the slider 6 contacts the upper surface of the first lever 3. Further, the cam groove 37 of the lock knob 7 overlaps the outside of the bent portion 31 of the slider guide groove 28 (see FIG. 6), and the push button 8 is unlocked.

When the push button 8 is pushed in with the fingertip in this state, the pin 38 of the slider 6 moves the cam groove 37 of the lock knob 7 and the bent portion 31 of the slider guide groove 28 downward. As a result, the second lever 4 is pushed down around the fulcrum pin 39, and at the same time, the first lever 3 is pushed down through the slider 6 around the fulcrum. When the first lever 3 is pushed down, the opening / closing valve 22 of the bellows pump 2 which is in contact with the lower surface thereof is pushed down and the bellows pump 2 is compressed. Bellows pump 2
When is compressed, the internal pressure of the middle bottle 20 rises, and the liquid is discharged from the discharge port 45.

When the fingertip is released from the push button 8, the bellows 23 is restored by the force of the internal spring 24 of the bellows pump 2, so that the first lever 3, the slider 6, the second lever 4 and the push button 8 are returned to their original states. To rise. The above operation is repeated as necessary.

Next, FIGS. 7 to 10 show an embodiment (second embodiment) of the above-mentioned second means. The bellows pump operating device of this embodiment includes a lock knob 7 and a guide rail 2.
5, bar-shaped slider 12, lever 9, rotating member 11
And push button 8.

A push button hole 26 is provided in the lid 1,
Ribs 27, 27 are provided on both sides of the push button hole 26 on the back surface of the lid 1, and a knob guide groove 30 is provided along the outside of one rib 27.

Slider guide grooves 28 are provided on the ribs 27, 27. The slider guide groove 28 includes a horizontal portion 29 and a bent portion 31 bent downward from the front end thereof.
Have.

At the rear ends of the ribs 27, 27, a fulcrum recess 33 for the lever 9 is provided.

In the lock knob 7, the knob portion 34 is inserted into the knob guide groove 30 and projects to the upper surface of the lid 1. Further, the plate piece 35 provided with the knob portion 34 is slidably supported on the guide rail 25 attached along the knob guide groove 30 on the back surface of the lid 1 (see FIG. 10). Further, a cam plate 36 is provided downward on the lower surface of the plate piece 35, and a cam groove 37 is provided in the cam plate 36. The cam groove 37 has a shape that matches the shape of the bent portion 31 of the slider guide groove 28 described above.

The fulcrum pin 49 at the rear end of the lever 9 is attached to the back surface of the lid 1. The lower surface of the central portion of the lever 9 contacts the upper surface of the opening / closing valve 22 of the bellows pump 2. The rotating member 11 is rotatably attached to the tip of the lever 9 by the first pin 10.

The front half of the slider 12 is slidably fitted on the upper surface of the lever 9, and the tip of the slider 12 passes below the first pin 10 and projects forward from the tip of the lever 9. Support pins 5 on both sides of the rear end of the slider 12
2, the fulcrum pin 52 is inserted into the slider guide groove 28, and one fulcrum pin 52 is inserted into the cam groove 37 of the lock knob 7.

The rotating member 11 has an upper surface and both side surfaces, and cam grooves 14 inclined obliquely downward are provided on both side surfaces, and the pin hole 51 at the tip portion of the slide bar 12 and both cam grooves 14 are provided. The second pin 15 is inserted into. Slide bar 1
In the state of FIG. 8 where 2 is most retracted, the second pin 15 is located at the upper end of the cam groove 14 and below the first pin 10.

The push button 8 is fitted to the rotating member 11, and in the state shown in FIG. 8, the lower end of the front wall of the push button 8 rests on the tip of the lever 9 and the upper surface of the push button 8 coincides with the upper surface of the lid 1. is there. Since the fulcrum pin 52 of the slider 12 engaged with the lever 9 in this state is fitted in the horizontal portion 29 of the slider guide groove 28, the push button 8 is in a locked state.

When the lock knob 7 is slid forward with the fingertip from the locked state of FIG. 8, the slider 12 moves forward and the second pin 15 advances in the cam groove 14 of the rotating member 11 in the horizontal direction. The moving member 11 rotates around the first pin 10 in the upright direction, and the tip of the upper surface thereof pushes the push button 8 onto the upper surface of the lid 1 (see FIG. 9). Further, the cam groove 37 of the lock knob 7 overlaps the outside of the bent portion 31 of the slider guide groove 28, and the push button 8 is unlocked.

When the push button 8 is pushed down from the state shown in FIG. 9, the lever 9 is lowered around the fulcrum, and the on-off valve 22 of the bellows pump 2 which is in contact with the lower surface of the central portion is pushed down to compress the bellows pump 2.

When the lock knob 13 is retracted to its original state, the second pin 15 retracts the cam groove 14, hits the rear end of the cam groove 14 under the first pin 10, and slightly rearward from the point of contact. When the slider 12 moves to, the rotating member 11
Rotates in the opposite direction about the first pin 10 to lower the push button 8 and returns to the state of FIG.

[0044]

As described above, according to the first means of the invention of this application, the second lever 4 pushes the push button 8 onto the lid 1 by the movement of the lock knob 7 and the action of the slider 6.

According to the second means, the rotating member 11 connected to the tip of the lever 9 moves the lock knob 7 and the slider 12 operates to close the push button 8 with the lid 1.
Stick up.

The second lever 4 and the second lever of the above-mentioned first means.
The rotating member 11 of the means constitutes a part of the lever mechanism when the push button 8 is pushed down.

As described above, in both the first and second means, since the push button 8 is retracted and retracted by using a part of the lever mechanism for directly operating the bellows pump 2, the push button 8 is also used. While having the functions of both the system and the lever mechanism, the structure is simple and the number of parts is small.

[Brief description of drawings]

FIG. 1 is a partially omitted sectional view of a first embodiment.

FIG. 2 is a partially exploded perspective view of the above.

FIG. 3 is a partially enlarged sectional view of the above.

FIG. 4 is a partially enlarged cross-sectional view of the same operation as above.

5 is a sectional view taken along line VV of FIG.

FIG. 6 is a cross-sectional view when unlocking the same as above.

FIG. 7 is a partially exploded perspective view of the second embodiment.

FIG. 8 is a partially enlarged sectional view of the above.

FIG. 9 is a partially enlarged cross-sectional view of the above-mentioned operation.

FIG. 10 is a sectional view taken along line XX of FIG.

FIG. 11 is a cross-sectional view when unlocking the same as above.

[Explanation of symbols]

 1 Lid 2 Bellows Pump 3 1st Lever 4 2nd Lever 5 Cam Groove 6 Slider 7 Lock Knob 8 Push Button 9 Lever 10 1st Pin 11 Rotating Member 12 Slider 14 Cam Groove 15 2nd Pin 18 Lower Plate 19 Air Hole 20 Middle bottle 21 Upper plate 22 Open / close valve 23 Bellows 24 Internal spring 25 Guide rail 26 Push button hole 27 Rib 28 Slider guide groove 29 Horizontal part 30 Knob guide groove 31 Bend part 32 Support point pin hole 33 Support point recess 34 Knob part 35 Plate One side 36 Cam plate 37 Cam groove 38 Pin 39 Support point pin 41 Inclination part 42 Push button fitting part 43 Opening 45 Discharge port 49 Support point pin 51 Pin hole 52 Support point pin

Claims (2)

[Scope of utility model registration request] 1. A first lever 3 mounted on a back surface of a lid 1 of a liquid container and extending above a bellows pump 2. A first lever 3 mounted above the first lever 3 and extending beyond a tip of the first lever 3. The second lever 4, the slider 6 engaged with the cam groove 5 of the second lever 4, the lock knob 7 for moving the slider 6, and the push button 8 engaged with the tip of the second lever 4 and protruding and retracted from the lid 1. And when the lock knob 7 is retracted, the slider 6 retracts to lower the second lever 4 and the push button 8,
When the lock knob 7 is moved forward, the slider 6 moves forward to enter between the tip of the first lever 3 and the intermediate portion of the second lever 4, and at the same time, the second lever 4 is lifted to push the push button 8 to the lid 1. A device for operating a bellows pump for a liquid container, which is characterized in that it protrudes to the upper surface of 2. A lever 9 attached to the back surface of a lid 1 of a liquid container and extending above a bellows pump 2, a rotating member 11 supported by a first pin 10 at the tip of the lever 9, and a rotating member 11 described above. A push button 8 which is engaged with and is retracted from the lid 1 in accordance with its rotation, a slider 12 which slides along the lever 9 and a lock knob 7 which is engaged with the slider 12, and a cam is attached to the rotating member 11. When the groove 14 is provided, the second pin 15 is inserted into the cam groove 14 and the slider 12, and the lock knob 7 is retracted, the rotation angle of the rotating member 11 is 0 and the push button 8 is in the lowered state. And the second pin 15 is at the rear end of the cam groove 14 which is inclined downward, and when the lock knob 7 is moved forward, the forward movement of the second pin 15 causes the rotating member 11 to rotate, A bellows pump operating device for a liquid container, characterized in that a push button 8 engaged with the rotating member 11 is projected onto the upper surface of the lid 1.