JPH0245378A - Container for dispensing predetermined amount of its content - Google Patents

Abstract

PURPOSE:To permit an easy and accurate dispensing of predetermined amounts of liquid contents by providing a plurality of engaging grooves lengthwise around the outer periphery of a piston rod, a cylindrical part on a push button body for receiving the piston rod and an engaging pawl at the opening end of the cylindrical part for engaging with the engaging grooves around the piston rod upon depressing a push button. CONSTITUTION:To dispence the contents from a container, a lid 4 is removed from an opening 1a and a depressing plate 6b of a push button body 6 is depressed with the thumb or finger. The depressing of the push button body 6 in this way moves downward a cylindrical part 6a to cause the elastic deformation of an elastic piece 7c of a resilient member 7 and, in conjunction therewith, a piston rod 5 and a piston member 2 are moved downward out of engagement with an engaging pawl 6c to dispense the contents under pressure from a dispensing opening 1c in a predetermined amount (the volume displaced by the downward stroke of the piston member 2). Upon releasing the push button, the resilient member 7 supporting the push button body 6 brings it back to its original position by the elastic action and the engaging pawl 6c on the push button body 6 moves slidably in an engaging groove 5a and reengages into the next engaging groove 5a to retain the piston member 2 in the original position.

Description

Detailed Description of the Invention "Field of Industrial Application" The present invention is applicable to fluids such as ointment creams for pharmaceuticals, cosmetic creams, liquid hair dyes, and especially emulsion creams of low to high viscosity, ointment creams, etc. The present invention relates to a metered-quantity dispensing container suitable for dispensing a fixed amount of a substance.

``Prior art'' Generally, containers containing cosmetics, daily necessities, pharmaceuticals, etc. are often used frequently, so containers containing these types of contents are difficult to remove when removing the contents from the container. User-friendliness may be required. In particular, when the contents are viscous fluids such as cosmetic creams, the container must be airtight, and it is preferable to add a function that allows a fixed amount of the contents to be taken out.

Conventionally, containers for liquid cosmetics such as cosmetic creams and viscous fluids have generally been glass bottles, tube containers, etc., so it is not possible to take out a fixed amount of the contents by themselves. There was a problem that it was difficult to use.

Therefore, for containers such as glass bottles, it has been proposed to attach a dropper to the lid or provide a pump mechanism to dispense a fixed amount of the contents, but these are not designed to be portable. Moreover, since the amount of the contents to be taken out must be adjusted by pressing with fingers, it is difficult to adjust the amount of contents to be taken out. Although tube containers are convenient to carry, they have a structure in which the discharge amount is adjusted by pressing the tube, making it difficult to dispense a fixed amount of the contents by adjusting the pressure.
There was a problem that it was difficult to use.

"Problems to be Solved by the Invention" The present invention aims to solve the following problems in the prior art described above.

First, in the conventionally provided containers, the amount of the contents taken out must be adjusted by applying pressure with the fingers or the like, making it troublesome to adjust the amount taken out and making it difficult to use.

Second, containers such as glass bottles have a large external shape, making them easy to carry, and tube containers require consideration to prevent the tube from being crushed during transportation, storage, etc. It is.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to easily and reliably dispense a fixed amount of liquid content with a simple structure, and to provide a metered quantity dispenser that is convenient to carry. The goal is to provide a container.

``Means for Solving the Problems'' In order to achieve these objects, the present invention provides a cylindrical container body with a content discharge port at the end, and a cylindrical container body that is liquid-tightly inserted into the container body. a piston member; and a piston extrusion mechanism attached to the other end of the container body to push the piston member toward the discharge port; one end of the piston extrusion mechanism is attached to the piston member and extends in the axial direction of the container body. an extending piston rod; a push button body that is inserted into the container body from the other end opening of the container body and supports the piston rod; and a resilient member that provides elastic resistance, and furthermore, a plurality of locking grooves are formed continuously along the longitudinal direction on the outer periphery of the piston rod, and the piston rod is inserted into the push button body. The present invention is characterized in that a cylindrical portion is provided, and a locking pawl that engages with a locking groove of the piston rod when the push button body is pressed is provided at the open end of the cylindrical portion.

"Operation" In the fixed-quantity dispensing container according to the present invention, when the piston pushing mechanism is pressed with fingers and the push button body is pushed down,
In conjunction with the movement of the push button body, the piston rod locked by the locking pawl and the piston at the tip of the rod descend, and a certain amount of the liquid content inside the container body is discharged from the outlet at the tip of the container body. Then, when you release the pressing operation on the push button body,
Due to the elastic action of the elastic member that supports the push button body, the push button body returns to its original state, and at this time, the engagement between the locking pawl and the locking groove of the push button body is released, and the piston member is pushed out. held in position.

"Embodiment" Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 1 to 4. In these figures, reference numeral 1 indicates a container body for containing liquid contents, and reference numeral 2 indicates this container body. Container body l
A piston member is fluid-tightly inserted into the container body, reference numeral 3 is a piston pushing mechanism attached to the opening at one end of the container body l for pushing out the piston member 2, and reference numeral 4 is a cap. 4 constitutes the main components of this embodiment.

The container body l is made of synthetic resin or the like and has an opening portion 1.
1 and the body portion 1b are formed in a cylindrical shape, and the mouth portion 1 at the tip of the container body! A discharge port 1C for the contents is formed on the inner periphery, and a locking protrusion 1d for securing the cap 4 is provided protruding from the outer periphery of the mouth portion 1b. Further, a pair of stepped portions 1e and If are provided on the inner circumferential surface of the body portion 1b at an interval in the axial direction to prevent the piston pushing mechanism 3 from coming off.

The piston member 2 that pushes out the contents in the container body 1 is made of a synthetic resin that is softer than the synthetic resin that constitutes the container body 1, and is formed into a disk shape that is slightly larger than the inner diameter of the body portion 1b. As shown in FIG. 3, the circumferential protrusions 2 & and the circumferential wall 2b which elastically contact the inner wall surface of the container body 1 are formed in two stages, upper and lower, and the circumferential wall 2b is formed inside the circumferential wall 2b. A gap 2C is formed that allows elastic deformation.

The piston pushing mechanism 3 includes a piston rod 5 having one end attached to the piston member 2 and extending in the axial direction of the container body 1, and an opening at the other end of the container body 1 (in the illustrated example, an opening in the body 1b). a push button body 6 that is inserted into the container body and supports the piston rod 5; and a resilient member 7 that supports the push button body 6 within the container body and provides elastic resistance to the pressing operation of the push button body 6. It is mainly composed of.

The piston rod 5 is used to push out the piston member 2, and as shown in FIGS. 1 and 2, a plurality of locking grooves 51 are continuous along the longitudinal direction of the piston rod 5 on its outer periphery. It is formed as follows. This locking groove 5! As shown in FIG. 2, the rod 5 is formed so as to go around the outer periphery of the rod 5 once, and has a serrated longitudinal section with an inclined surface on the side facing the piston member 2.

The push button body 6 includes a cylindrical portion 61 into which the piston rod 5 is inserted, and a disc-shaped pressing portion 6b provided at one end of the cylindrical portion 6M.
It is composed of a cylindrical part 6! A locking claw 6c that engages with the locking groove 5a of the piston rod 5 is provided at the open end of the piston rod. In the illustrated example, four locking claws 6c are arranged at equal intervals along the circumferential direction of the cylindrical portion 6, and the tip of each locking claw 6c is bent inward so as to engage with the locking groove 5a. It has a similar structure.

In addition, the elastic member 7 is attached to the outer circumference of the cylindrical portion 61 from the lower end side of the cylindrical portion 6! a locking protrusion 6d to be locked to the outer periphery of the
A pressing plate 6e that presses the resilient member 7 downward, and a container body 1
In the illustrated example, a flange is provided between the retaining plate 6f and the pressing plate 6e. It has a configuration in which a plate 6g is provided.

The elastic member 7 that provides elastic resistance to the push button main body 6 will be explained. The elastic member 7 is formed of synthetic resin into a ring shape that is inserted into the outer periphery of the cylindrical portion 6J of the push button main body 6. An insertion hole 7 of the cylindrical portion 6a is provided inside the emitting member 7.
A pair of elastic pieces 7C are formed by the notch groove 7b extending from the push button body 6.
A convex portion 7d that comes into contact with the pressing plate 6e is provided (see FIG. 4).

The cap 4 that covers the mouth 1a of the container body 1 is formed into a cylindrical shape having four top plate parts, and a cap 4 that is inserted into the outer periphery of the mouth part 1a is inserted into the inner surface of the top plate 4a. Inner cylinder 4b
is vertically provided, and a protrusion 4C is provided on the inner circumferential surface of the inner cylinder 4b to engage with the locking protrusion 1d on the outer periphery of the mouth. Further, the top plate portion 4 of the cap 4 is provided with a handle portion 4d that protrudes outward from the peripheral wall of the cap 4, so as to improve the operability when removing the cap 4.

Next, the operation of this embodiment configured as above will be explained.

In order to put this fixed quantity dispensing container into an assembled state as shown in FIG.
, the push button main body 6 and the elastic member 7 are formed individually. First, the elastic member 7 is inserted into the outer periphery of the cylindrical portion 6J of the push button main body 6, and the rod integrated with the piston member 2 is inserted into the inner periphery of the cylindrical portion 6a. Insert 5.

Next, the piston extrusion mechanism 3 assembled in this way
is inserted into the body 1b of the container body 1, and the elastic member 7 is locked to the lower step 1f, and the retaining plate 6r of the cylindrical portion 61 is locked to the upper step 1e of the opening end periphery. The container shown in Figure 2 is completed.

This assembly is a simple task of simply inserting and fixing the four members (container body l, piston member 2, push button body 6, and elastic member 7), and does not require any special technology or equipment for assembly. In addition, each member can be molded in large quantities using a suitable synthetic resin, and costs can be reduced.

In order to store the contents in the container assembled in this way, it is sufficient to directly fill the contents from the discharge port 1c of the container body 1.

The operation of discharging the contents stored in the container body is performed using the mouth part 1.
1, the container body 1 is held in the palm of the hand, and the press plate 6b of the push button body 6 is pressed with the thumb or the like. By this operation, the cylindrical portion 61 of the push button body 6 is lowered,
The elastic piece 7c of the resilient member 7 is elastically deformed, and in conjunction with these movements, the piston rod 5 locked by the locking pawl 6c and the piston member 2 at the tip of the rod descend, and the liquid contents inside the container body are lowered. The material is pressurized and is discharged from the discharge port 1c in a fixed amount (the amount by which the piston member 2 is lowered).

Then, when the pressing operation of the push button body 6 is released, the push button body 6 returns to its original state due to the elastic action of the resilient member 7 that supports the push button body 6.
c is the locking groove 5! The piston member 2 is held at the pushed-out position by sliding on the top and engaging again with the next locking groove 5M.

In the embodiment, the liquid contents inside the container body can be taken out by grasping the container body 1 in the palm of the hand and pressing the push button body 6, so that it is easy to use. Since the contents can be discharged by lowering the piston member 2, there is an advantage that a fixed amount of the contents can be easily and reliably discharged.

"Effects of the Invention" As explained above, the present invention provides the following excellent effects.

(1) By pressing the piston extrusion mechanism, a fixed amount of the liquid contents in the container body can be easily and reliably discharged, and there is no need to adjust the discharge amount by pressing with fingers or the like. , it has the effect of being easy to use.

(b) Also, since the piston member is lowered step by step along the locking groove to discharge the liquid contents,
The liquid-tightness does not always deteriorate, and the piston extrusion mechanism provides excellent effects such as the ability to efficiently discharge and use the liquid contents to the end.

(c) Since the fluid is housed in the cylindrical container body, it is convenient to carry and has the advantage of being easy to transport and store.

[Brief explanation of the drawing]

1 to 4 show an embodiment of the present invention,
FIG. 1 is an exploded perspective view of the metered dispensing container, FIG. 2 is a sectional view showing the assembled state, FIG. 3 is a sectional view of the piston member, and FIG. 4 is a plan view of the resilient member. 7d...Protrusion.

Claims (1)

[Claims] A cylindrical container body with a discharge port for the contents at one end, a piston member fluid-tightly inserted into the container body, and a piston member attached to the other end of the container body to direct the piston member toward the discharge port. The piston extrusion mechanism includes a piston rod having one end attached to the piston member and extending in the axial direction of the container body, and a piston rod inserted into the container body from an opening at the other end of the container body. It is composed of a push button body that supports the piston rod, and an elastic member that supports the push button body within the container body and provides elastic resistance to the pressing operation of the push button body, and furthermore,
A plurality of locking grooves are formed continuously along the longitudinal direction on the outer periphery of the piston rod, and the push button body is provided with a cylindrical portion into which the piston rod is inserted, and an opening of the cylindrical portion. A fixed-quantity dispensing container characterized in that an end is provided with a locking pawl that engages with a locking groove of a piston rod when the push button body is pressed.