JPH09276758A - Pump dispenser mounting method, pump dispenser, container lid mounting method and container lid - Google Patents

Abstract

(57) [Summary] [Purpose] Attach a pump dispenser to a commercially available screw container regardless of rotation. [Structure] The pump dispenser 10 is pushed in from above the container 28. A female thread 15a that can be screwed into the male thread 29a of the container mouth is provided in the lower part, and an auxiliary cylinder 15 with a lower edge that is elastically deformable by forming a slit in the lower edge is a valve case 14. Since the lower part with the female thread of the auxiliary cylinder is expanded, it slides on the male screw 29a of the container opening and is screwed to the male screw 29a. If the pushing is continued, the lower portion of the valve case 14 is pushed around the lower portion of the auxiliary cylinder 15 having the female thread and is covered therewith. Then, the valve case 14 tightens the lower part with the female thread of the auxiliary cylinder 15 to physically prevent expansion due to elastic deformation, so that the female screw 15a of the auxiliary cylinder and the external thread 29a of the container mouth are screwed. Looseness is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and a pump for mounting a pump dispenser, which sucks and pressurizes liquid in a container into a cylinder by reciprocating motion of a piston which is interlocked with swinging of a trigger, and pressurizes the liquid. Dispenser
Regarding

[0002]

2. Description of the Related Art In recent years, a pump dispenser, which pressurizes and discharges liquid by reciprocating movement of a piston interlocked with the swing of a trigger without using CFC, has attracted particular attention in recent years due to environmental problems such as destruction of the ozone layer by CFC. ing.

A pump dispenser of this type includes a cylinder, a swingable trigger, and a piston that reciprocates in the cylinder in association with the swing of the trigger. The piston reciprocates to move the liquid. It is constructed so that it is sucked up into the cylinder and pressurized, and the pressurized liquid is caused to flow out from the orifice at the tip of the nozzle.

Usually, the pump dispenser is first sold to a detergent company or the like, not to the consumer. Then, a detergent supplier or the like attaches a pump dispenser to a container filled with detergent, shampoo, antiseptic solution, etc., and finally sold as a combination of the pump dispenser and the container to consumers.

In pump dispensers, normally,
The cover is formed in a hollow shape having a substantially inverted U-shaped cross-section that is open at the front and bottom surfaces, and although exposure of the trigger is unavoidable, relatively large components such as pistons, cylinders, valve cases, etc. It is almost covered by the cover. Therefore, depending on the cover design, the pump dispenser
The design of itself is almost decided. And, covers of various designs are made according to the demands of detergent companies and the like.

Recently, pistons, cylinders and triggers
A method has been proposed in which main parts such as the above are unitized in advance as an inner assembly, and a cover is put on the inner assembly to assemble a pump dispenser.

For example, US Pat. No. 4,911,361,
In 4,940,186 and 4,953,791, the cover is arranged on the inner assembly, the bottle cap and the packing (sealing color) are arranged below, and the bottle cap and the packing are pushed relative to the cover, The inner assembly, the bottle cap and the packing are assembled into the cover by locking the bottle cap and the packing at the lower end of the cover with the inner assembly sandwiched.

Further, in US Pat. No. 5,156,304, all the main parts except the cover are unitized as an inner assembly, and the inner assembly is assembled by just pushing from the top and the cover to the inner assembly is assembled.
Can be installed.

The following advantages can be obtained in the structure in which the main parts except the cover are unitized as an inner assembly. The inner assembly can be shared. Designs required by detergent companies (custom designs)
It suffices to cover the above-mentioned cover with a common inner assembly, and it is possible to cope with diversification of custom designs.

The inner assembly is covered from above.
Simply attach (for US Pat. No. 5,156,304),
Alternatively, in addition to that, if a bottle cap and a sealing color are attached from the bottom (in the case of US Pat. No. 4,911,361), the pump dispenser is assembled and the assembly does not require a high technology, so that the developing countries It is possible to assemble with a knockdown method.

By mass production by sharing the inner assembly, the inner assembly, that is, the pump dispenser can be manufactured at low cost.

[0012]

By the way, a male screw is usually formed in the container mouth part to which the pump dispenser is mounted, and a bottle cap with a female screw is screwed into the container mouth part to pump the pump. A dispenser is attached to the container.

For example, US Pat. No. 4,911,361,
In 4,940,186 and 4,953,791, the bottle cap is rotatably attached to the cover. Also, in U.S. Pat. No. 5,156,304, the bottle cap is molded integrally with a pair of pivotally attached side walls of the trigger.

In the former case, the bottle cap can be rotated independently of the cover, and only the bottle cap can be rotated to screw the bottle cap to the container mouth. In the latter case, since the cover and the bottle cap are integrated, when the bottle cap is rotated and screwed into the container mouth, the cover is also rotated at the same time.

In a pump dispenser in which the main parts are not unitized as an inner assembly, a cylindrical valve case with engaging teeth is mounted on the dispenser body (also referred to as a cover or housing) from below. A structure in which the upper edge of the bottle cap is locked to the flange at the lower end of the valve case is widely adopted (for example, US Pat. No. 4,072,252 and US Pat. No. 4,365,751). Here, the valve seat of the primary valve is provided at the upper end of the valve case,
A suction tube is inserted and fixed at the lower end of the valve case.

In the pump dispenser having this structure, when the bottle cap is screwed into the container mouth, the flange at the lower end of the valve case is clamped between the bottle cap and the container mouth, and the pump dispenser is attached to the container. It

Irrespective of the unitization of the inner assembly, in the structure in which the pump dispenser is mounted by screwing the bottle cap to the mouth of the container, the container,
One of the bottle caps must be rotated relative to the other, usually the container is fixed and the bottle cap is rotated and screwed onto the container.

The pump dispenser is manufactured with the bottle cap incorporated, and is sold to a detergent trader or the like.
Then, in a detergent company or the like, a bottle cap is screwed to a container mouth (a pump dispenser is attached to a container) in a filling line for filling a container with a liquid.

In other words, the container is filled with the liquid in the first half of the filling line, and the bottle cap is screwed to the container mouth fixed by stopping the movement of the container in the latter half of the filling line. In this way, in the same line (filling line), a liquid filling process and a bottle cap screwing process (pump dispenser
There are two processes coexisting.

Here, the liquid can be filled into the container at a relatively high speed. However, screwing the bottle cap to the container mouth requires time to stop the movement and rotate the bottle cap on the fixed container. Therefore, the screwing speed of the bottle cap (the mounting speed of the pump dispenser) is very slow as compared with the filling speed of the liquid.
Then, the speed of the whole filling line must be set in accordance with the slower speed, that is, the mounting speed, and the mounting process is an obstacle to speeding up the filling line.

Since it is necessary to rotate the bottle cap while fixing the container, the bottle cap should be rotated.
The screwing mechanism (pump dispenser mounting mechanism) becomes complicated and large, and the entire filling line becomes complicated.
Inviting larger size.

A method has been proposed in which the pump dispenser is mounted on the container only by pushing it in from above in order to enable the mounting at high speed without the need for fixing the container and rotating the bottle cap. For example, in Japanese Unexamined Patent Publication No. 7-308610, hooks, not male threads, are provided 180 ° apart from each other at the container mouth, and the container mouth is inserted into the gap between the inner and outer walls of the double-cylinder-shaped valve case. The hook at the lower end of the vise extending downward from the main body is wrapped around and locked by the hook at the mouth of the container.

Further, in Japanese Patent Laid-Open No. 7-308611, a hook provided on the inner wall of a valve case which is provided with a slit at its lower end and which is elastically deformable, wraps and locks the hook at the mouth of the container. . Then, the pump dispenser is provided with a stopper, and the stopper is engaged with the corresponding hook of the container mouth portion to prevent relative rotation of the container and the dispenser.

In both JP-A-7-308610 and JP-A-7-308611, the pump dispenser can be attached to the container by simply pushing it into the container from above, and the attachment speed is increased. Further, as compared with the screwing method, this pushing method can simplify and downsize the mounting mechanism. And the bottle cap is also unnecessary.

However, it is necessary to specially prepare a container provided with a hook having a predetermined shape, and a commercially available container (mass product) having a screw at the container mouth cannot be used. Further, it is not necessary to push the pump dispenser into the container at any position, but it is necessary to push the pump dispenser into the container at an angular position where the hooks can be locked, that is, in a predetermined direction. There is.

It is an object of the present invention to provide a method of mounting a pump dispenser on a commercially available threaded container by pushing, not by screwing, and a pump dispenser therefor.

The present invention also provides a pump dispenser.
The present invention is not limited to the above and can be applied as a container lid, and another object is to provide a container lid mounting method and a container lid that are mounted on a commercially available threaded container by pushing without screwing.

[0028]

To achieve this object, in the pump dispenser mounting method according to the present invention, an auxiliary thread is provided at the lower portion and a slit is formed upward from the lower edge so as to be elastically deformable. Valve from the bottom
The pump dispenser is pushed from above the container while partially stored in the container, and the female screw with the slit of the auxiliary cylinder is screwed to the male screw of the container opening.

Even after the female thread of the auxiliary cylinder is screwed onto the external thread of the container mouth, if the pump dispenser is pushed in, the valve case is pushed around the lower portion of the auxiliary cylinder with the female thread and covered. Prevents expansion due to elastic deformation. In other words, the valve case is covered with an auxiliary cylinder corresponding to a "tub".
Function as

For example, a valve case that partially stores an elastically deformable auxiliary cylinder in the lower part is unitized as an inner assembly together with main parts such as a trigger, a cylinder and a piston. Further, a locking projection and a locking groove which are locked to each other under the elastic deformation of the auxiliary cylinder are provided between the outer surface of the auxiliary cylinder and the inner surface of the valve case, and are vertically separated under pushing. The locking projection and the locking groove are locked to each other at the two positions so that the auxiliary cylinder is partially or wholly stored in the valve case.

For example, two locking grooves are provided on the inner surface of the valve case, and one locking projection is provided on the outer surface of the lower portion of the auxiliary cylinder with the female screw, and the locking projections are locked in the lower locking grooves. For example, the auxiliary cylinder is partially stored in the valve case. In this state, if the pump dispenser, that is, the cover is pushed in, the auxiliary cylinder is pushed together with the valve case, and the lower part with the female screw of the auxiliary cylinder slides under the expansion due to elastic deformation. It is put on the external thread of the container mouth and screwed.

If the cover is pushed in even after the auxiliary cylinder comes into contact with the shoulder of the container and the pressing of the auxiliary cylinder becomes impossible, the engagement between the lower engagement groove and the engagement projection is released. The valve case slides on the female-threaded lower portion of the auxiliary cylinder and is pushed around the female-threaded lower portion of the auxiliary cylinder to be covered. And the valve case
As the hook, the lower part of the auxiliary cylinder with female thread is tightened to prevent loosening.

[0033]

Embodiments of the present invention will be described below in detail with reference to the drawings.

As shown in FIG. 1, a pump dispenser 10 according to the present invention comprises a cylinder 12, a valve case 14, a trigger 16, a piston 18, a nozzle 20 and a cover 22 as main components. Consider recycling,
It is injection molded from plastic. And the cover
Except for 22, the cylinder 12, the valve case 14, etc. are formed as an inner assembly 24 so that they can be unitized.

For example, the cylinder 12 has a vertical cylindrical portion 12a defining an inflow passage therein, a horizontal cylinder body 12b extending horizontally from the vertical cylindrical portion and defining a pump chamber therein, and a vertical cylinder portion extending from the vertical cylindrical portion. Is formed integrally with a horizontal nozzle holder -12c which extends in parallel with the cylinder body above and which defines an outflow passage.
Here, the inflow passage communicates with the pump chamber of the cylinder body 12b via the primary valve, and the outflow passage communicates with the pump chamber of the cylinder body 12b.

The valve case 14 is a vertical cylindrical portion 12 of the cylinder.
It is inserted into and fixed to a from below, and the trigger 16 is swingably attached (pivotally attached) to the side surface of the nozzle holder 12c. The piston 18 has its tip pivotally supported on the back surface of the trigger, and the skirt-shaped seal piece at the rear end is slidably contacted with the inner surface of the piston body to be incorporated therein, and is interlocked with the swing of the trigger-16. Reciprocates horizontally in the piston body.

Plastic saddle-shaped return spring 26
The vertical cylinder 12 of the cylinder across the cylinder body 12b.
It is installed between the front of a and the trigger-rear, and the trigger-
A biasing force is applied to 16 and trigger against this biasing force.
Is towed. The upper end of the trigger 16 is notched in a U shape leaving the side wall, and the edge of the notch 16a abuts the bottom surface of the nozzle holder 12c of the cylinder to determine the initial position (outer position) of the trigger.

For example, the nozzle 20 has a bottomed shape having an orifice at the bottom, and is a nozzle holder-12c of a cylinder.
It is screwed to the tip of. A spinner for vortexing the pressurized liquid is provided behind the orifice, and when the piston 18 reciprocates in conjunction with the swing of the trigger-16, the liquid sucked and pressurized by the pump chamber (pressurized The liquid) flows through the secondary valve of the nozzle holder-12c and the outflow passage, is vortexed by the spinner, and flows out from the nozzle orifice as a spray flow. It may be made to flow out as a jet flow or to be made to foam out, without making it vortex.

The pump dispenser 10 of the present invention is characterized in that the valve case 14 houses the auxiliary cylinder 15. That is, as can be seen from FIGS. 2 and 3, two locking grooves 14U and 14L are formed on the inner surface of the valve case 14 with a vertical distance of L1 between the locking case 14U and 14L. The valve case partially or entirely stores the auxiliary cylinder 15. Since the valve case 14 has a bottomed cylindrical shape and does not have a notch in the cylindrical portion, the auxiliary case 15 ("tub") is provided as described later.
(Corresponding to), it functions as a "tag".

Incidentally, the valve case is similar to the known one.
A small-diameter engaging cylinder 14a with engaging teeth extends from the upper surface of 14, and as shown in FIG. 1, the vertical cylindrical portion 12a of the cylinder is covered with this engaging cylinder so that the valve case fits into the cylinder 12. ,
Fixed.

As is clear from FIG. 4 (A) in addition to FIGS. 2 and 3, the auxiliary cylinder 15 is formed of plastic into a cylindrical shape with a bottom and is similar to the valve case 14, and the pump dispenser 10 is provided. The mouth portion 29 of the container 28 (see FIG. 6) to be attached to
A female screw 15a that can be screwed onto the male screw 29a is formed on the lower portion of the auxiliary cylinder.

4 (B) and 4 (C) showing a front view and a bottom view.
As you can see, slit upward from the lower edge of the auxiliary cylinder 15.
Four 15b are formed 90 ° apart. However, the number and the arrangement of the slits 15b are not limited to those shown in the figure as long as the lower part of the auxiliary cylinder 15 with the female screw can be elastically deformed.

By providing the slit 15b, the auxiliary cylinder
The lower part of female thread 15 is elastically deformable and expands (expands) radially outward under elastic deformation. Therefore, as described later, if you push it in from above, the internal thread 15
The a slides on the external thread 29a of the container mouth portion 29 and is covered and snap-fastened.

Although the internal thread 15a is a circumferential one and the internal thread 15a is divided into a discontinuous thread piece (fragmental thread) by the slit 15b, the initial internal thread is replaced with an internal thread instead. A female thread may be formed in the shape of a screw piece from the above, and so-called bayonet cam is also included in the female thread here.

A locking projection 15c which can be locked in the locking grooves 14U and 14L of the valve case is formed on the outer surface of the auxiliary cylinder 15, and the locking projection and the locking groove constitute locking means. There is.
When the locking projection 15c is locked in the locking groove 14L below the valve case, the auxiliary cylinder 15 is partially stored in the valve case (see FIG. 3), and when locked in the upper locking groove 14U, The auxiliary cylinder is entirely stored in the valve case (see FIG. 8).

As shown in FIG. 2, the packing 29 has the auxiliary cylinder 15
The suction tube 30 is mounted inside, and the suction tube 30 is inserted through the packing and inserted into and fitted into the engagement cylinder 14a of the valve case from below. If it is not necessary to consider liquid tightness, the packing 29 may be omitted.

As shown in FIG. 3, the valve case 14 is constructed by incorporating an auxiliary cylinder 15, packing 29, and suction tube 30.

Specifically, for example, as shown in FIG. 2, the valve case 14, the auxiliary cylinder 15, the packing 29, and the suction tube 30 are arranged in series. First, the packing 29 is pushed into the auxiliary cylinder 15. Then, the locking protrusion 15c is attached to the valve case.
Push the auxiliary cylinder 15 into the valve case 14 until it is locked in the locking groove 14L below the space. And finally, the suction tube
Insert and fix the bush 30 into the engagement cylinder 14a of the valve case,
The valve case, auxiliary cylinder, packing, and suction tube are integrated. Of course, this assembly procedure is an example,
It is not limited to this.

In the pump dispenser 10 having the above structure, for example, the trigger 16, the piston 18, the nozzle 20, and the return spring 26 are assembled in the cylinder 12 together with the secondary valve (not shown). Then, if the cylinder is covered from above with a primary valve (not shown) interposed in the valve case 14 containing the auxiliary cylinder and the like, the main parts are the inner assembly.
It is unitized as 24 (see Fig. 1).

Of course, this is an example of assembling, and for example, a valve case is mounted on a cylinder 12 having a trigger 16 incorporated therein.
You may push in 14 from below.

Next, the cover 22 is attached to the inner assembly.
Covered with 24. The cover 22 has a known shape, that is, a substantially inverted U-shaped hollow shape with its front and bottom surfaces opened. For example, as shown in FIG. 1, a cover 22 is placed on the right side of the inner assembly 24, and the cover is pushed over the inner assembly to cover it, as shown in FIG.
The pump dispenser 10 is delivered (sold) to a detergent company or the like with the inner assembly housed in the cover. Then, a detergent company or the like attaches the pump dispenser 10 to the container at a filling line for filling the container with the liquid.

As shown in FIG. 6, the container 28 can be mounted simply by pushing the pump dispenser 10 from above. For example, when the container 28 filled with the liquid is transported to a position right below a mounting mechanism (not shown) of the pump dispenser 10 by a transport device such as a belt conveyor, the pump dispenser is supplied from the mounting mechanism to the container. Pushed in.

In FIG. 6, when the pump dispenser 10 is pushed into the container 28, first, the lower part with the female screw of the auxiliary cylinder 15 located at the lowermost end of the inner assembly 24 is moved to the container mouth 29.
Pressed to. The valve case 14 and the auxiliary cylinder 15 are pushed together without being separated, and the lower part of the auxiliary cylinder 15 with an internal thread is elastically deformable due to the presence of the slit 15b, so it is expanded and the container mouth part is opened. It is slipped over the screw 29a and snapped onto the male screw (Fig. 7).

Usually, the container 28 is formed in a shape having a shoulder portion 29b. Then, even after the lower end of the auxiliary cylinder 15 contacts the shoulder 29b, the pump dispenser 10 is continuously pushed in (see FIG. 7). Then, the locking projection 15c of the auxiliary cylinder and the locking groove 14L below the valve case are disengaged, the valve case 14 is separated from the auxiliary cylinder 15, and the upper part of the auxiliary cylinder 15 with the female screw is placed above. It slips and covers the lower part with female thread.

In the illustrated embodiment, the distance L1 between the engaging grooves 14U and 14L is
And the projection length L2 of the auxiliary cylinder from the valve case 14 when the locking projection 15c of the auxiliary cylinder 15 is locked in the locking groove 14L below the valve case 14 ( (See FIG. 3). Here, the protruding length L2 of the auxiliary cylinder 15 is the valve case when the lower portion with the female thread of the auxiliary cylinder 15 contacts the shoulder portion 29b,
Match the shoulder spacing.

Therefore, as shown in FIG. 8, the locking projection 15c of the auxiliary cylinder is locked in the locking groove 14U above the valve case, and at the same time, the valve case 14 contacts the shoulder portion 29b of the container. Contact. If the valve case 14 abuts the shoulder 29b of the container, a large resistance is created, and further pushing is physically impossible. That is, until the valve case 14 abuts the shoulder 29b of the container and a large resistance is generated, the pump dispenser 10
Can be pushed in from above the container 28.

As described above, according to the present invention, if the pump dispenser 10 is pushed in from above the container 28, first, the auxiliary cylinder 15
The lower part with the female thread is snapped onto the male thread 29a of the container mouth, and then the lower part of the valve case 14 is put on the lower end with the screw of the auxiliary cylinder 15, and the auxiliary cylinder is attached like "tagger". Tighten the threaded lower part of the to physically prevent the expansion of the threaded lower part of the auxiliary cylinder due to elastic deformation.

Therefore, the pump dispenser 10 is firmly attached to the container 28 without loosening the screwed lower part of the auxiliary cylinder 15 and the external thread 29a of the container opening. Therefore, loosening of screws during transportation of the container with pump dispenser,
The loosening of the screws due to the fall during the exhibition is prevented, and the leakage of liquid is prevented.

That is, unlike the conventional mounting method in which the bottle cap is rotated and screwed to the fixed container, in the present invention, it is sufficient to push the pump dispenser 10 from the top of the container 28, and the rotating operation requires time. Because there is no, it can be installed quickly and easily. Further, the pump dispenser 10 may be pushed in from above the container 28, and it is not necessary to fix the container, so that the mounting time can be shortened also from this point. In this way, the mounting is speeded up, and the mounting time can be shortened to a time substantially equal to the time for filling the container with the liquid, so that the mounting process of the pump dispenser 10 does not hinder the speeding up of the filling line.

Further, the mounting mechanism can be simplified and downsized as compared with the known mounting mechanism of a dispenser in which a bottle cap is rotated and screwed while fixing the container, and accordingly, the entire filling line is simple. Downsized.

Since the pump dispenser is attached to the container by screwing in the same manner as in the conventional case, a commercially available container (mass product) with a male screw is used without preparing a container with special specifications. it can. Of course, the conventional bottle cap becomes unnecessary.

Without considering the relative angular position (direction) of the container 28 and the auxiliary cylinder 15, the pump dispenser 10 can be inserted into the container at any angular position, and from this point as well. Can be done easily.

In the illustrated embodiment, the valve case
The locking means is composed of the two locking grooves 14U and 14L of the slot 14 and one locking projection 15c of the auxiliary cylinder 15, and the locking projection 15c is fitted to the lower locking groove 14L as shown in FIG. When the inner assembly 24 is stored in the cover 22 in the locked state and the locking projection 15c is locked in the upper locking groove 14U as shown in FIG. The lower part is tightened.

However, as shown by the alternate long and short dash line in FIG. 9, the auxiliary cylinder 15 is formed with another locking projection 15c 'which is separated from the locking projection 15c by the same distance L1 as the locking grooves 14U and 14L. When the dispenser 10 is pushed down, the locking projection 15c may be locked in the locking groove 14U and the locking projection 15c 'may be locked in the locking groove 14U.

Contrary to the illustrated form, as shown in FIG. 10, the locking groove is formed in the auxiliary cylinder 115 and the locking projection is formed in the valve case.
It may be formed on the spacer 114. In this form, the valve case
As for the engaging projection 114L below 114, the valve case 114 is the auxiliary cylinder 1
When partially retracting 15, the locking groove 1 on the auxiliary cylinder
It engages with 15cU and engages with the locking groove 115cL under the auxiliary cylinder when the auxiliary case is covered with the valve case as "rattle" (when it is totally stored). As shown by the alternate long and short dash line, another locking protrusion 114U separated from the locking grooves 115cU and 115cL of the auxiliary cylinder by the same distance L1 may be formed in the valve case 114.

In the illustrated embodiment, the locking groove is substantially V-shaped and the locking projection is substantially arcuate, but it is sufficient as long as they lock each other, and the shape is not limited to this. Further, the locking means is sufficient as long as the auxiliary cases 15 and 115 are locked to the valve cases 14 and 214, and the locking means is not limited to the combination of the locking groove and the locking projection shown.

Further, in the illustrated embodiment, the distance L1 between the engaging grooves 14U and 14L of the valve case 14 and the auxiliary cylinder from the valve case
When the valve case 14 comes into contact with the shoulder 29b of the container with the protrusion length L2 of 15 being the same, the locking protrusion 15c is positioned above the locking groove.
It is locked in 14U. However, by making L2 longer than L1,
When the locking projection 15c is locked in the upper locking groove 14U and the resistance against pushing increases, pushing of the pump dispenser 10 may be stopped.

The present invention is not limited to a pump dispenser and can be applied to a container lid. That is, in the above embodiment, the engaging cylinder 14 is inserted from the upper surface of the valve case 14.
A is extended, and holes for inserting the suction tube 30 are formed in the valve case and the auxiliary cylinder, respectively. However, in the container lid, neither the cylinder is engaged nor the suction tube is inserted. That is, a container lid is obtained by removing the engagement cylinder 14a and closing the base of the valve case as a lid main body, and storing an auxiliary cylinder with the base closed as well in the lid main body.

More specifically, for example, as shown in FIG. 11, the container lid 210 includes a lid main body 214 and an auxiliary cylinder 215 each having a bottomed cylindrical shape. Similar to the above embodiment, a female screw 215a that can be screwed into the male screw 29a of the container opening is provided in the lower portion of the auxiliary cylinder 215, and the slit 21 is provided upward from the lower edge.
5b is formed so that the lower part with the female thread can be elastically deformed.

Two locking grooves 214U, 214L are formed vertically on the inner surface of the lid body 214 by a distance L1 and a locking projection 215c which can be locked in the locking grooves 214U, 214L of the valve case is formed. A locking means is formed on the outer surface of the auxiliary cylinder 215, and is composed of a locking groove and a locking projection.

Further, the flat plate-shaped packing 229 is attached to the auxiliary cylinder 21.
The container lid 210 is configured by being mounted in the container 5. However, if the ring 215d is formed on the lower surface of the base of the auxiliary cylinder 215 as shown by the one-dot chain line and the upper end of the container mouth 29 is brought into contact with this ring to ensure liquid tightness, the packing 229 can be omitted.

As shown in FIG. 12, the locking projection 15c of the auxiliary cylinder
Is locked in the locking groove 14L below the valve case, the container body 214 partially stores the auxiliary cylinder 15, and the container lid 210 is assembled.

The container lid 210 as described above is screwed into the container 28 by being pushed in from above the container 29 and is tightened so as not to be loosened, as in the above-described embodiment.

That is, in FIG. 12, the container lid 210 is
When it is pushed into the container 28, the lower part of the auxiliary cylinder 215 at the lowermost end of the container lid with the female thread is pressed against the container mouth 29, spreads out, and slides over the male screw 29a of the container mouth and is screwed into the container. (See Figure 13).

When the container lid 210 is continuously pushed in even after the lower portion of the auxiliary cylinder 215 with the female thread is brought into contact with the shoulder portion 29b of the container, the locking projection 215c of the auxiliary cylinder 215 and the bottom of the valve case 14 are pushed. Locking groove
When it is disengaged from 214L, the valve case 14 slides over the lower part with the female thread of the auxiliary cylinder 15 to cover the lower part with the female thread, and the lower part with the female thread is tightened (see FIG. 14). Therefore, loosening of the screwing of the male screw 29a of the container and the female screw 215a of the auxiliary cylinder is prevented.

Here again, the locking grooves 214U, 214 of the container body 214
The gap L1 between L and the locking protrusion 215c of the auxiliary cylinder 215
The protrusion length L2 of the auxiliary cylinder from the container body when locked in the locking groove 14L under the space 14 is formed to be equal. Therefore, the locking protrusion 215c of the auxiliary cylinder is formed on the container body by the locking groove 14c.
At the same time it is locked in the U, the container body 214 is
It abuts b, and further pushing is physically impossible.

As described above, the container body 214 is made into the shoulder portion 29 of the container.
If it is pushed in from above the container 28 until it comes into contact with b, screw the female threaded lower part of the auxiliary cylinder 15 to the external thread 29a of the container mouth and the lower part of the container body to the lower threaded part of the auxiliary cylinder 15. Since the attachment and tightening occur continuously, the container lid 210 can be pushed in only
Firmly attached to.

Also in this container cylinder 210, as shown in FIG. 9 in accordance with the above-mentioned aspect, the two locking projections 215c are spaced apart.
The auxiliary cylinder 215 may be formed by separating from L1. In addition, as shown in FIG. 10 in accordance with the above-described mode, contrary to the illustrated mode, the locking projection may be formed in the container body 214 and the locking groove may be formed in the auxiliary cylinder 215, respectively. The locking means may be configured by a combination other than the combination of the locking protrusion and the locking groove.

[0079]

As described above, according to the method of mounting the pump dispenser according to the present invention, the pump dispenser can be mounted on the container mouth simply by pushing the container from above, and the mounting of the pump dispenser on the container is quick. , Easy to install and fast to install. Therefore, the mounting time can be shortened to a time substantially equal to the filling time of the liquid in the container, and the mounting process of the pump dispenser does not hinder the speeding up of the filling line.

Further, from above the container, a pump dispenser
You only have to push in, no need to rotate,
No need to fix the container, the pump dispenser mounting mechanism can be simplified and downsized, and the entire filling line can be simplified.
It is downsized. Of course, the conventional bottle cap becomes unnecessary.

Since the loosened screw is physically prevented by tightening the male screw and the female screw that are screwed together with the ratchet, the pump dispenser can be firmly attached to the container. Therefore, it is possible to prevent the liquid from leaking during the transportation of the container with the pump dispenser or during the exhibition.

As in the conventional case, the method of mounting the pump dispenser on the container by screwing is adopted, so that a commercially available container (mass product) with a male screw can be used without preparing a container with special specifications. Can be used.

According to the present invention, the female screw and the slit are formed in the valve case, the inner assembly is housed in the cover, and the valve case is partially or wholly housed in the valve case. It suffices to provide locking means such as a projection and a locking groove between the valve case and the auxiliary cylinder. Therefore, it is possible to obtain a pump dispenser which is attached to a container only by pushing it in, without complicating the structure.

The present invention can be applied not only to the pump dispenser but also to the container lid, and in this case, the same effect as in the pump dispenser can be obtained.

[Brief description of drawings]

FIG. 1 is a schematic front view of a pump dispenser according to the present invention before accommodating an inner assembly in a cover.

[Fig. 2] Aligned valve case, auxiliary cylinder, packing,
It is a longitudinal cross-sectional view of a suction tube.

FIG. 3 is a vertical cross-sectional view of a valve case in which an auxiliary cylinder, packing, and suction tube are incorporated.

4A is a vertical cross-sectional view of a valve case, FIG. 4B is a front view, and FIG. 4C is a bottom view.

[FIG. 5] An inner assembly is housed in a cover,
It is a schematic front view of the pump dispenser of this invention.

FIG. 6 is a process diagram showing a method of mounting a pump dispenser on a container.

FIG. 7 is a process drawing showing a method of mounting a pump dispenser on a container.

FIG. 8 is a process diagram showing a method of mounting a pump dispenser on a container.

FIG. 9 is a front view showing a modified example of the auxiliary cylinder.

FIG. 10A is a vertical sectional view showing a modified example of the valve case, and FIG. 10B is a front view showing a modified example of the auxiliary cylinder.

FIG. 11 is an exploded view of the container lid according to the present invention.

FIG. 12 is a process drawing showing the method of attaching the container lid to the container.

FIG. 13 is a process drawing showing the method of attaching the container lid to the container.

FIG. 14 is a process drawing showing the method of attaching the container lid to the container.

[Explanation of symbols]

 10 Pump dispenser 12 Cylinder 14, 114 Valve case 14a Engaging cylinder 14U, 14L Engaging groove 114U, 114L Engaging protrusion 15 Auxiliary cylinder 15a, 15b, 15c, 15c 'Male screw, slit, engaging protrusion 115cU, 115cL Engagement groove 16 Trigger-18 Piston 20 Nozzle 24 Inner assembly 26 Return spring 28 Container 29 Container opening 29a Container opening male thread 29b Shoulder 30 Suction tube

Claims (8)

[Claims] 1. A method for mounting a pump dispenser in which a pump dispenser is mounted on a container with a valve case interposed therebetween. With the auxiliary cylinder with a slit formed so that the lower part with female thread can be elastically deformed, with the pump dispenser pushed in from above the container while partially storing it in the lower part of the valve case, expansion by elastic deformation is also possible. With, slide the lower part of the auxiliary cylinder with female thread over the male thread of the container mouth and screw it onto the male thread of the container mouth, and then place the lower part of the valve case around the lower part of the auxiliary cylinder with female thread. Pump dispenser characterized in that it is pushed into the lower part of the auxiliary cylinder and covered with the female threaded lower part of the auxiliary cylinder to prevent loosening of the screwing.
How to wear. 2. An auxiliary cylinder, which has a female thread at the bottom that can be screwed onto the male thread of the container mouth and has a slit upward from the lower edge so that the lower section with the female thread can be elastically deformed partially from below. The stored valve case is unitized as an inner assembly together with the main parts such as the trigger, cylinder and piston, and the inner cylinder is stored in the cover while the auxiliary cylinder is extended from below the valve case. Then, push the cover from the top of the container, screw the lower part of the auxiliary cylinder with female thread to the external thread of the container opening while expanding it by elastic deformation, and further press the cover to insert the valve case. The pump dispenser mounting method in which the lower part of the connecting cylinder is covered with the lower part with the female thread to prevent loosening of the screw. 3. A pump dispenser in which main parts other than a cover are unitized in advance as an inner assembly, and which is attached to a container via a valve case which is a member of the inner assembly housed in the cover. In −, the auxiliary cylinder that is elastically deformable by providing a female thread that can be screwed to the male thread of the container mouth at the bottom and providing a slit from the lower edge to the upper side is engaged with each other under the elastic deformation of the auxiliary cylinder. A pump characterized by being provided with a locking projection and a locking groove for stopping between the outer surface of the auxiliary cylinder and the inner surface of the valve case so that the bubble case can be locked and stored at two vertically separated positions. Dispenser. 4. A cylinder, a valve case that can be attached to a lower portion of the cylinder, a trigger pivotally attached to a side surface of the cylinder, and reciprocates horizontally in the cylinder in conjunction with swinging of the trigger. The cylinder, the valve case, excluding the cover, is equipped with a piston, a nozzle having an orifice, a return spring for biasing the trigger toward the initial position, and a cover for covering the cylinder, the valve case, etc. Etc. are configured as an inner assembly so that they can be unitized, and a female screw that can be screwed onto the male screw of the container mouth is provided in the lower part, and a slit is formed upward from the lower edge so that the lower part with the female screw can be elastically deformed. The auxiliary cylinder is partially stored in the valve case from below, and the auxiliary cylinder is inserted into the valve case at two vertically spaced positions under the pushing of the pump dispenser from above the container.
A pump dispenser in which a locking projection and a locking groove, which are locked to each other and can be locked to each other, are formed between the outer surface of the auxiliary cylinder and the inner surface of the valve case. 5. A bottomed cylindrical auxiliary cylinder in which a female thread that can be screwed into the male thread of the container mouth is provided in the lower portion, and a slit is formed upward from the lower edge to elastically deform the lower portion with the female thread. While partially stored in the lid body, push it in from the top of the container, and under the expansion by elastic deformation, slide the lower part of the auxiliary tube with female thread over the external thread of the container mouth After screwing onto the male thread of the mouth part, the lid body is pushed around the lower part of the auxiliary cylinder with female thread to cover the lower part of the auxiliary tube with female thread to prevent loosening of the screw. How to wear. 6. A bottomed cylindrical auxiliary cylinder in which a female thread that can be screwed into the external thread of the container mouth is provided in the lower portion, and a slit is formed upward from the lower edge to elastically deform the lower portion with the female thread. And a bottom lid-shaped lid main body which partially stores the auxiliary cylinder and is covered by a screwed lower end of the auxiliary cylinder when pushed. 7. A bottomed cylindrical auxiliary cylinder in which a female thread that can be screwed into the male thread of the container mouth is provided in the lower portion, and a slit is formed upward from the lower edge to elastically deform the lower portion with the female thread. And a bottomed cylindrical lid main body that stores the auxiliary cylinder and covers the threaded lower part of the auxiliary cylinder when pushed, and the locking projection is formed on the outer surface of the threaded lower part of the auxiliary cylinder. , The two locking grooves to which the locking projections are locked are vertically separated from each other and are formed on the inner surface of the lid body, and the locking grooves are provided at a position for storing only the upper part of the auxiliary cylinder and a position for storing the lower part of the auxiliary cylinder. Container lid provided. 8. A bottomed cylindrical auxiliary cylinder in which a female thread that can be screwed into the male thread of the container mouth is provided in the lower portion, and a slit is formed upward from the lower edge to elastically deform the lower portion with the female thread. And a bottomed cylindrical lid body that stores the auxiliary cylinder and covers the screwed lower part of the auxiliary cylinder when pushed, and the locking groove is formed on the external surface of the auxiliary cylinder with the screw Two locking protrusions that are locked in the stop groove are formed vertically on the inner surface of the lid body, and the locking grooves are provided at a position for storing only the upper portion of the auxiliary cylinder and a position for storing the lower portion of the auxiliary cylinder. Open container lid.