JPH0654555U - pump - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a rotary pump capable of easily pouring out contents with one hand even for a soft and rigid container that cannot be used with a conventional reciprocating pump. [Structure] Cap body 3 attached to the opening of container 2
A tube 4 which is mounted in the cap body 3 and has one end connected to the suction port 23 communicating with the container 2 and the other end connected to the discharge port,
The guide wall 5 arranged along the periphery of the cap body 3
A rotary member 6 rotatably supported by the rotary member 6; a plurality of throttle means 7 provided on the rotary member 6 for partially pressing the tube 4 against the guide wall 5 to narrow the flow path in the tube 4; And an operating section 26 for rotating the.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a pump for extracting contents, which is attached to, for example, a plastic tube.

[0002]

[Prior art]

 Conventionally, some stationary type containers such as shampoos are equipped with a pump at the container opening in order to extract the contents in the container.

Such a conventional pump is generally of a reciprocating type that uses a cylinder and a piston, and a piston portion is reciprocated by moving a nozzle portion protruding from a cap up and down to obtain a predetermined amount of content. It was designed to suck up objects and eject them from the nozzle.

[0004]

[Problems to be solved by the device]

 However, in the case of the conventional pump described above, it is assumed that the container is self-supporting and rigid, and there is a problem that it is difficult to use a soft container without rigidity. That is, when a conventional type pump is mounted on such a container, it is necessary to support the pump with one hand and operate the nozzle portion with an empty hand.

The present invention was made in order to solve the above-mentioned problems of the prior art. The purpose of the present invention is to easily pour out contents with one hand even for a soft and rigid container. To provide a pump.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, in the present invention, a cap body attached to an opening of a container, a cap body mounted inside the cap body, one end of which is connected to an intake port communicating with the container, and An annular elastic tube having the other end connected to the discharge port, a guide wall arranged along the circumference of the tube, a rotary member rotatably supported by the cap body, and the rotary member. A plurality of throttle means provided on the member for partially pressing the tube against the guide wall to narrow the flow path in the tube; and an operating section for rotating the rotating member. It is characterized by

A reverse rotation preventing means for preventing reverse rotation of the rotating member is provided on the cap body.

[0008]

[Action]

 In the present invention, the rotating member is rotated by operating the operating portion with a finger, and the throttle means provided on the rotating member is moved from the suction port of the tube to the discharge port. The contents in the tube are sent to the discharge port side and discharged from the discharge port by the amount of this movement. On the other hand, on the upstream side of the moved throttle, the elasticity of the tube causes the tube to elastically return to its original shape and the internal volume of the tube increases, and negative pressure is generated accordingly. The contents will be inhaled through the inhalation port.

If a reverse rotation preventing means for preventing reverse rotation of the rotating member is provided, the rotating operation direction of the rotating member at the time of pouring is limited to a fixed direction, so that an erroneous operation can be prevented. In addition, if the amount of rotation is limited by the reverse rotation prevention means, it is possible to dispense a fixed amount. Further, in the case of an elastic container such as a plastic tube, an air bag after the pouring operation can be prevented by the reverse rotation preventing means.

[0010]

【Example】

 The present invention will be described below based on the illustrated embodiment.

1 and 2 showing a pump according to an embodiment of the present invention, reference numeral 1 denotes the entire pump, and generally, a cap body 3 attached to an opening of a container 2 and a cap body. A tube 4 mounted inside the tube 3, a guide wall 5 arranged along the circumference of the tube 4, a rotating member 6 rotatably supported by the cap body 3, and a tube provided on the rotating member 6. 4, and a plurality of diaphragm pins 7 as diaphragm means for partially diaphragming 4.

As the container 2, it is possible to apply a flexible container having no rigidity as shown in FIG. 2, and in this embodiment, it is shown that it is used as a container such as a plastic tube. Of course, the present invention is not limited to the plastic tube and can be applied to a rigid container.

The cap body 3 has a substantially cylindrical shape, and is composed of a main body cap 8 that is attached to the opening of the container 2 and a cover cap 9 that covers the upper end of the main body cap 8.

The body cap 8 includes a disc-shaped bottom plate portion 10, a cylindrical upper outer wall portion 11 extending upward so as to surround the outer peripheral edge of the bottom plate portion 10, and a cylinder extending downward from the outer peripheral edge of the bottom plate portion 10. And a lower outer wall portion 12 having a shape. On the lower surface side of the bottom plate portion 10, a cylindrical first lower inner wall portion 13 is concentrically protruded from the lower outer wall portion 12 from an intermediate portion thereof, and is concentrically located further inside the first lower inner wall portion 13. And a second lower inner wall portion 14 provided on the inner wall. On the inner circumference of the first lower inner wall portion 13, a female screw portion 17 that is screwed into a male screw portion 16 formed on the outer circumference of the mouth / neck portion 15 of the container 2 is formed. The outer circumference of the second lower inner wall portion 14 is fitted to the inner circumference of the mouth / neck portion 15 of the container 2.

Further, a nozzle portion 21 as a discharge port for discharging the contents is formed in the upper outer wall portion 11 of the main body cap 8 so as to project in the lateral direction. Further, the bottom plate portion 10 is provided with a suction port 23 communicating with the inside of the container. The suction port 23 is formed in the projection region of the mouth / neck portion 15 of the container 2 in the center of the bottom plate portion 10.

On the other hand, on the upper surface of the bottom plate portion 10, there is provided a circular guide wall 5 having an opening protruding upward. The guide wall 5 is eccentrically provided in an area on the opposite side of the nozzle portion 21 with respect to the center O of the bottom plate portion 10, and a virtual line X connecting the center O of the bottom plate portion 10 and the center of the nozzle portion 21. With a first semicircular portion 5A and a first straight line portion 5D provided on one side of the boundary, and a second semicircular portion 5B and a second straight line portion 5C provided on the other side. There is.

One end of the first semicircular portion 5 A is connected to the vicinity of an intersection K of the imaginary line X and the upper outer wall portion 11 on the opposite side to the nozzle portion 21, and the other end is located at the suction port 23 in the center of the bottom plate portion 10. It extends to the vicinity. In addition, one end of the first straight portion 5D is connected to the vicinity of the base of the nozzle portion 21 of the upper outer wall portion 11, and the other end also extends to the vicinity of the suction port 23. The second semicircular portion 5B is connected to the first semicircular portion 5A at one end thereof in the vicinity of the intersection K of the imaginary line X and the upper outer wall portion 11 on the side opposite to the nozzle portion 21, and the other end. Extends to near the center O of the bottom plate portion 10 and is continuous with one end of the second straight portion 5C. The second straight line portion 5C extends parallel to each other with the first straight line portion 5D separated from the first straight line portion 5D by the width of the tube diameter, and one end thereof is connected to the upper outer wall portion 11 of the base position of the nozzle portion 21. There is.

The cover cap 9 is composed of a disk-shaped top plate portion 19 and a cylindrical side wall portion 20 extending downward from the outer peripheral edge of the top plate portion 19, and the lower end of the side wall portion 20. Is fixed to the upper end of the upper outer wall portion 11 of the body cap 8.

The tube 4 is formed of an elastic material having elasticity such as rubber, and is composed of an annular portion 4A having one open portion and a linear portion 4B extending from one end of the annular portion 4A. It One end of the annular portion 4A is connected to the suction port 23, and the annular portion 4A is arranged along the inner circumference of the first and second semicircular portions 5A and 5B of the guide wall 5, and the linear portion 4B is formed in the guide wall 5. Is disposed between the first and second linear portions 5A and 5B, and the tip opening portion is connected to the nozzle portion 21.

The rotating member 6 is a disk-shaped member, which is arranged concentrically with the first and second semicircular portions 5 A and 5 B of the guide wall 5, and the rotating shaft portion 24 at the center thereof is the bottom plate portion 10 of the body cap 8. It is rotatably supported by a bearing portion 25 projecting upward from. The configuration of the rotating member 6 includes a rotating shaft portion 24 at a central position, a dial portion 26 as an operating portion located on the outer peripheral portion, and a connecting portion 27 connecting the rotating shaft portion 24 and the dial portion 26. There is.

Further, the side wall portion 20 of the cover cap 9 is formed with a notch 28 through which the dial portion 26 partially projects.

The throttle pins 7 as throttle means are formed so as to project downward from the connecting portion 27 of the rotary member 6. In this embodiment, the throttle pins 7 are arranged in four equal parts with the rotary shaft 24 as the center. In this embodiment, a rotatable cylindrical roller 29 is inserted in the diaphragm pin 7. The throttle pin 7 partially presses the tube 4 against the guide wall 5 to throttle the flow passage 30 in the tube 4. In this embodiment, the position of the intersection K between the upper outer wall portion 11 and the imaginary line X is 90 degrees away from the intersection K on the first and second semi-circular portions 5A and 5B sides about the rotation axis 24. The flow path 30 is completely closed by the throttle pin 7 at a total of three positions.

Further, a projection 31 for preventing reverse rotation is provided on the upper surface of the connecting portion 27 of the rotating member 6 so as to correspond to the position of each aperture pin 7, while the lower surface of the top plate portion 19 of the cover cap 9 is provided. A locking pawl 32 for preventing reverse rotation, which engages with the protrusion 31, is provided on the front side of the base plate, and constitutes a ratchet mechanism. This ratchet mechanism permits rotation of the rotating member 6 in the counterclockwise direction in FIG. 1 and prevents rotation in the clockwise direction. In order to do this, for example, the shape of the protrusion 31 may be a sawtooth shape.

In the present invention, the rotary member 6 is rotated counterclockwise in the drawing by operating the dial portion 26 with a finger. Then, the throttle pin 7 provided on the rotating member 6 moves from the suction port 21 of the tube 4 toward the nozzle portion 21. The contents in the tube 4 are sent to the nozzle portion 21 side and discharged from the nozzle portion 21 by the moved amount.

On the upstream side of the throttle portion of the moved throttle pin 7, on the other hand, the elasticity of the tube 4 causes the tube 4 to elastically return to its original shape and the inner volume of the tube 4 increases due to the movement of the contents. . Due to the increase in the internal volume, a negative pressure is generated inside the tube 4 and the contents are sucked from the suction port 23.

When the rotating member 6 rotates by a predetermined amount, the locking claw 32 of the top plate portion 19 rides over the protrusion 31 at a predetermined position on the upper surface of the connecting portion 27 of the rotating member 6 and is caught by the protrusion 31. Since the predetermined amount of rotation can be sensuously determined by this click feeling, quantitative extraction is possible. Further, when the extraction is completed, a negative pressure is generated inside the container 2 due to the elastic restoring force of the container 2 and the negative pressure tries to return the contents in the tube 4 to the inside of the container 2, but the projection 31 is locked by the locking claw. Since it is engaged with 32, reverse rotation of the rotating member 6 is prevented, and air bag is also prevented. In addition, if the reverse rotation is prevented in this way, it is possible to prevent an erroneous operation.

Further, also in the case of applying to a tube that is not crushed and returned to its original state, the effect of preventing erroneous operation can be obtained by providing a reverse rotation preventing mechanism.

FIGS. 3 and 4 show another embodiment of the present invention.

In this embodiment, the cap body 203 has an elliptical shape, and the dial portion 26 as an operation portion is projected on both side surfaces of the cap body 203 on the short axis Y side.

That is, this pump is also rotatable with respect to the cap body 203, the tube 4 mounted inside the cap 203, the guide wall 205 arranged along the periphery of the tube 4, and the cap body 203. The rotary member 6 supported by the rotary member 6 and a throttle pin 7 as a throttle means provided on the rotary member 6 for partially squeezing the tube 4 have a basic structure similar to that of the first embodiment. It can be similarly configured.

The different point is that the cap body 203 has an elliptical shape whose minor axis is smaller than the outer diameter of the dial portion 26 of the rotating member 6. Therefore, the main body cap 208 and the cover cap 209 forming the cap body 203 are also formed in the same elliptical shape. The guide wall 205 provided on the upper surface of the bottom plate 210 of the main body cap 209 is provided separately from the upper outer wall portion 211 of the main body cap 208 with a space around the entire circumference, and has a distorted circular pump chamber 22. Is defined.

On the other hand, the rotary shaft 24 of the rotary member 6 is aligned with the center of the cap body 203, and the dial portion is formed at two symmetrical positions with respect to the major axis of the ellipse of the cover cap side wall portion 220. The notches 228, 228 are formed so as to protrude.

With this configuration, the operation can be performed from any of the left and right sides, the user can handle both left-handed and right-handed operations, and operability can be improved. it can.

Since other configurations are the same as those of the first embodiment, the same components are designated by the same reference numerals and the description thereof will be omitted.

In each of the above-described embodiments, the tube handled in the hand is described, but it can be applied to a so-called stationary type container. Moreover, it is needless to say that the contents to be poured can be widely applied from liquids having high viscosity to liquids having low viscosity such as water.

[0036]

[Effect of device]

 The present invention has the above-described configuration and operation, and the contents can be easily poured out with one hand, which improves usability and has a wide range from soft, non-rigid containers to rigid containers. It can be applied to containers and has a wide range of uses.

Further, if the reverse rotation preventing means is provided, it is possible to dispense a fixed amount and prevent an erroneous operation. Further, in the case of a container such as a plastic tube in which the air bag after pouring out the contents becomes a problem, the air bag can be prevented by the reverse rotation preventing means.

[Brief description of drawings]

FIG. 1 (a) is a vertical sectional view of a pump according to an embodiment of the present invention, and FIG. 1 (b) is a sectional view taken along line BB of FIG. 1 (a).

FIG. 2 is a front view of the entire container showing an example of a container in which the pump of FIG. 1 is used.

3A and 3B show a pump according to another embodiment of the present invention. FIG. 3A is a cross-sectional view and FIG. 3B is a top view.

FIG. 4 is a front view of a main part of a container showing an example of the container in which the pump of FIG. 3 is used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Pump 2 Container 3,203 Cap body 4 Tube 5,205 Guide wall 5A, 5B 1st, 2nd semicircle part 6 Rotating member 7 Throttle pin (throttle means) 31 Protrusion (reverse rotation preventing means) 32 Locking claw ( Reverse rotation prevention means)

Claims (2)

[Scope of utility model registration request] 1. A cap body attached to an opening of a container, and an annular ring which is mounted in the cap body and has one end connected to an intake port communicating with the container and the other end connected to a discharge port. A tube having elasticity, a guide wall arranged along the circumference of the tube, a rotating member rotatably supported by the cap body, and a tube provided on the rotating member, the tube being provided on the guide wall. A pump comprising: a plurality of throttle means for partially pressing and narrowing a flow path in a tube; and an operating portion for rotating the rotating member. 2. The pump according to claim 1, wherein the cap body is provided with reverse rotation preventing means for preventing reverse rotation of the rotating member.