JP4602534B2 - Metered dispenser - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a quantitative dispenser suitable for taking out and dispensing a predetermined amount of contents in a container, and is intended to realize an accurate quantitative dispensing with a simple dispensing operation.
[0002]
[Prior art]
Conventionally, a manual pump that can be installed in the opening of a container has been applied to take out an appropriate amount of the contents in the container as needed. In such a case, the pumping accuracy of the pump is remarkably inferior. In this case, a detachable metering dispenser for sucking only a necessary amount from the opening of the container body is used.
[0003]
Specifically, the metering dispenser includes a base part that is attached to the opening of the container body and forms a cylinder chamber inside thereof, and a detachable measuring part that is incorporated in the base part. When the contents are poured out, the metering part is removed from the base part and the cylinder built in the metering part is moved to move the contents to the outside. For example, Japanese Utility Model Publication No. 6-3812 is referred to as a prior art related to this point.
[0004]
By the way, in this type of metering dispenser, the base part and the metering part usually employ a screw engagement method, which is troublesome to attach and detach.
[0005]
In addition, if there is a need to divide the contents that have been quantitatively sucked into the measuring section into smaller parts (hereinafter referred to as quantitative dispensing), there is no choice but to rely solely on manual adjustment. Development of a dispenser that can be used is desired.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to propose a novel quantitative dispenser that can perform suction and dispensing of contents easily and quickly, and can accurately dispense a quantity as needed.
[0007]
[Means for Solving the Problems]
The present invention comprises a base part that is attached to an opening of a container body, and a weighing part that is detachably held by the base part and sucks the contents in the container body and holds and dispenses the sucked contents. In metered dispensers,
The metering unit has a metering unit main body for storing a constant volume of contents, a piston that can slide within the metering unit main body, one end connected to the piston and the other end penetrating the metering unit main body, and the piston together with the suction pipe. It has a pouring rod that is forced to slide,
A detecting means for detecting the amount of content dispensed is provided between the measuring unit main body and the dispensing rod .
The detection means includes at least one convex portion provided on the dispensing rod, and an elastic tongue provided on the measuring portion main body and engaged with the convex portion, and the convex portion is stored in the measuring portion main body. It is used as an index corresponding to the remaining amount of contents or the amount dispensed from the measuring department.
A dispensing dispenser characterized in that the pouring rod comprises a polygonal column .
[0009]
One of the base part or the measuring part is provided with an inclined ridge, and the other part is provided with an ridge that sandwiches the ridge, and the protrusions are mutually connected by the rotation of the measuring part relative to the base part. It is assumed that the measuring portion is attached to the base portion by being engaged in a screw shape.
[0010]
The measuring unit preferably has a scraper on the outer periphery of the main body to scrape the contents attached to the inner surface of the base portion into the container main body.
[0011]
Base and at least one of the weighing unit, of providing the convex portions to prevent loosening of the measuring unit mounted on the base portion by increasing the surface pressure between the contact cross let them contact to each other good preferable.
[0012]
It is desirable that the measuring portion has an opening that penetrates through the main body on the back surface of the piston and communicates with the outside.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
The metering dispenser of the present invention is provided with a plurality of protrusions on each of the measuring part and the base part, and with the protrusions engaged with each other, the measuring part is slightly rotated around the base part. The measuring part is attached to the base part by increasing the surface pressure of the engaging part.
[0014]
【Example】
Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 shows the configuration of a metering dispenser according to the present invention. In the figure, 1 is a container main body for containing contents, 2 is a base part screwed to the opening part 1a of the container main body 1, 3 is a measuring part attached to the base part 2, The metering unit 3 constitutes a metering dispenser.
[0015]
The base portion 2 has a cylindrical concave portion 2a that holds the measuring portion 3 in an insert state, a groove portion 2b that is formed in the concave portion 2a and controls the flow of air between the inside and outside of the container body, and a check valve. A hollow tube 2c having an opening 2d for supplying the contents to the container body 1 is provided.
[0016]
The measuring unit 3 has a measuring unit main body 3a for storing the content at a constant capacity, a piston 3b for sucking and discharging the contents in the measuring unit main body 3a so as to be slidable along its axial direction, A suction pipe 3c that is connected to 3b and has the other end passing through the measuring body 3 and matching the hollow tube 2c of the base 2, and a piston 3b is forced to slide together with the suction pipe 3c from the outside of the measuring body 3a The rod 3d includes an opening 3e that penetrates the measuring portion main body 3a and communicates with the outside on the back surface of the piston 3b. Among these, the measuring portion main body 3a has an elastic seal member in a region through which the suction pipe 3c penetrates. 3f.
[0017]
Reference numeral 4 denotes the protrusions shown in the three examples provided on the base portion 2. The protrusions 4 have the same inclination and length, and are arranged around the base portion 2 at equal intervals.
[0018]
Reference numeral 5 denotes the protrusions shown in the six examples provided in the measuring unit 3. The ridges 5 have the same inclination as the ridges 4 and are arranged so that the ridges 4 are sandwiched and viewed from both sides, and the measuring part 3 is adapted to the base part 2 and rotated. By doing so, the protrusions 3 and 4 come into contact with each other, and the surface pressure immediately increases between them.
[0019]
Reference numeral 6 denotes a detecting means for detecting the amount of the content stored in the measuring unit 3. The detecting means 6 includes a convex portion 6a provided on the dispensing rod 3d and an elastic tongue piece 6b provided on the measuring portion main body 3a and engaged with the convex portion 6a. The convex portion 6a is provided in the measuring portion main body 3a. It becomes an index corresponding to the remaining amount of the contents stored in or the amount poured out from the measuring unit.
[0020]
Reference numeral 7 denotes a scraper. The scraper 7 is provided at the outer peripheral tip of the measuring portion main body 3a, and has a function of scraping the contents inevitably attached to the concave portion 2a of the base portion 2 into the container main body. Reference numeral 8 is a convex portion shown in the example provided integrally with the base portion 2, and this convex portion 8 is brought into contact with the measuring portion 3 when the measuring portion 3 is attached to the base portion 2. The pressure is increased to prevent the measuring part 3 attached to the base part 2 from loosening.
[0021]
2 illustrates the appearance of the metering dispenser shown in FIG. 1 in a disassembled state in an easy-to-understand manner. FIG. 3 is a plan view of the weighing unit 3, and FIG. 4 is a plan view of the concave portion 2a of the base unit 2. Is shown respectively.
[0022]
The dispensing rod 3d is slid in the measuring section 3, and the suction pipe 3c connected thereto is made to protrude most from the measuring section main body 3a, and is inserted into the concave portion 2a of the base section 2, and the tip of the suction pipe 3c is made into the hollow tube 2c. The matched state is shown in FIG.
[0023]
When the measuring portion 3 is further pushed into the concave portion 2a from this state and is brought into a state as shown in FIG. 6, the space r defined by the piston 3b and the measuring portion main body 3a is held under a negative pressure. The contents in the container body 1 are sucked up by a constant volume through the dip tube d, the hollow tube 2c and the suction tube 3c.
[0024]
With the contents stored and held in the measuring unit main body 3a, the measuring unit main body 3a is removed from the base part 2, the dispensing rod 3d is pressed to slide the piston 3b, and the suction pipe 3c is moved as shown in FIG. The contents are poured out from the suction pipe 3c by protruding from the main body of the measuring section.
[0025]
When the contents are poured out, the convex portion 6a of the detecting means 6 provided on the pouring rod 3d is engaged with the elastic tongue 6b provided on the measuring section main body 3a. At this time, the pouring of the contents is performed. By suspending, it becomes possible to dispense a fixed amount.
[0026]
In this example, 10 cc and 20 cc are shown as an example of such a convex portion 6 a, but a plurality of such convex portions 6 a can be provided at arbitrary positions along the axial direction of the pouring rod 3 d and at a predetermined pouring amount.
[0027]
With respect to the elastic tongue piece 6b that engages with the convex portion 6a, the pressing of the dispensing rod 3d can be stopped by the engagement with the convex portion 6a, and the convex portion 6a can be moved without requiring much pressing force. It shall have an elastic force that allows it to get over and continue to press.
[0028]
When all the contents stored in the measuring unit main body 3a are poured out at a time, the pouring rod 3d may be pushed out regardless of the engagement between the convex portion 6a and the elastic tongue 6b.
[0029]
When attaching the measuring unit 3 to the base unit 2, the protrusions 3 and 4 are engaged with the measuring unit 3 by a slight rotation to increase the surface pressure. Since the angle is small, it can be easily attached and detached as compared with conventional screws.
[0030]
In the present invention, when the measuring unit 3 is attached to the base unit 2, in order to prevent the measuring unit 3 from being slack, the present invention has been described with reference to the case where the convex portion 8 is provided. However, a plurality of such units can be provided. Moreover, the convex part 8 can also be provided in the measurement part 3 side, and should just be able to keep the measurement part 3 to the base part 2 reliably.
[0031]
When the elastic tongue piece 6b is used as the detecting means 6, since a sound is emitted when riding on the convex portion 6a, there is an advantage that the remaining amount of the contents can be confirmed not only visually but also by hearing.
[0032]
The metering dispenser according to the present invention can be made of a resin such as plastic, but the material is not particularly limited. The measuring unit 3 is preferably formed of a transparent or translucent member so that it can be visually confirmed whether or not the contents are stored inside.
[0033]
FIG. 7 shows an example in which a cap c is attached to the measuring unit 3. The metering portion 3, since that is an opening 3e to guide smooth movement of the piston 3b, since water and dust or dust from such sites are also may enter, during storage is not performed pouring the contents It is effective to wear such a cap c.
[0034]
【The invention's effect】
According to the present invention, since the probe and the opening / closing angle are small, the weighing unit can be easily attached to and detached from the base, so that the dispensing operation can be performed smoothly.
[0035]
In addition, according to the present invention, since it is possible to dispense a fixed amount, it is useful especially for a medicine that requires strict pouring, such as a medicine, and its application can be remarkably expanded.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram of a configuration of a metering dispenser according to the present invention.
FIG. 2 is a view showing the appearance of a metering dispenser according to the present invention.
FIG. 3 shows a plan view of the metering part of the metering dispenser according to the invention.
FIG. 4 is a view showing a plane of a concave portion of a metering dispenser according to the present invention.
FIG. 5 is an explanatory view of the dispensing procedure of the metered dispenser according to the present invention.
FIG. 6 is an explanatory view of the dispensing procedure of the metered dispenser according to the present invention.
FIG. 7 is a view showing another example of a metering dispenser according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Container main body 1a Opening part 2 Base part 2a Recess part 2b Groove part 2c Hollow pipe 2d Opening part 3 Weighing part 3a Weighing part main body 3b Piston 3c Suction pipe 3d Extraction rod
3e Opening 3f Elastic seal member 4 Protruding shape 5 Protruding shape 6 Detection means 6a Convex portion 6b Elastic tongue piece 7 Scraper 8 Convex portion r Space d Dip tube c Cap

Claims (6)

In a quantitative dispenser consisting of a base part mounted on the opening of the container body, and a measuring part that is detachably held in the base part and sucks the contents in the container body and holds and dispenses the sucked contents,
The metering unit has a metering unit main body for storing a constant volume of contents, a piston that can slide within the metering unit main body, one end connected to the piston and the other end penetrating the metering unit main body, and the piston together with the suction pipe. It has a pouring rod that is forced to slide,
A detecting means for detecting the amount of content dispensed is provided between the measuring unit main body and the dispensing rod .
The detection means includes at least one convex portion provided on the dispensing rod, and an elastic tongue provided on the measuring portion main body and engaged with the convex portion, and the convex portion is stored in the measuring portion main body. It is used as an index corresponding to the remaining amount of contents or the amount dispensed from the measuring department.
The dispensing dispenser is characterized in that the pouring rod comprises a polygonal column. One of the base part or the measuring part is provided with an inclined ridge, and the other part is provided with a ridge having an arrangement for sandwiching the ridge, and the protrusions are mutually connected by rotating the measuring part relative to the base part. The metering dispenser according to claim 1, wherein the metering portion is attached to the base portion by being engaged in a screw shape. The metering dispenser according to claim 1 or 2, wherein the measuring section has a scraper for scraping the contents adhering to the inner surface of the base portion into the container main body on the outer periphery of the main body. Any one of Claims 1-3 which has a convex part which prevents loosening of the measurement part with which the base part and the measurement part were made to contact each other and heightened the surface pressure between the contacts, and was attached to the base part. The fixed-quantity dispenser according to crab. The metering dispenser according to any one of claims 1 to 4, wherein the metering unit body has an elastic seal member in a region through which the suction pipe penetrates. A metering dispenser according to any one of claims 1 to 5, wherein the metering section includes an opening penetrating the main body on the back surface of the piston and communicating with the outside.

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