JP2005053517A - Liquid jetting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a liquid jetting device which enables a dislocated jetting head to be fitted again easily in a specific direction. <P>SOLUTION: According to the liquid jetting device, the outer peripheral surface of a guide cylinder 12 and the inner peripheral surface of the peripheral wall 14b of the jetting head are formed to have respective sections similar to each other so that the jetting head peripheral wall 14b can be fitted on the guide cylinder 12 in one direction. The liquid jetting device comprises a fitting cap 7, which is fitted on a mouth-to-neck part 6 of a container 2 and has the guide cylinder 12 erected on a flange-like top plate 11, and the jetting head 9, which is fitted on the upper end of a stem 13 arranged to be projected in the guide cylinder 12 and has a top-fitted cylindrical cover 14, which has an open lower end and includes the depressible peripheral wall 14b extending downward along the outer periphery of the guide cylinder 12. By moving up and down the jetting head, a liquid in the container 2 is sucked up and is jetted out of a jet nozzle 8. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a liquid ejector.

  Various proposals have been made for liquid ejectors that are configured so that the pump is detachably mounted on the container body, and the ejection head at the upper end of the pump is moved up and down to suck up the liquid in the container body and eject it from the ejection head of the ejection head. Has been. Among these, a flange-like top plate is extended from the upper end of the mounting cylinder detachably fitted to the outer periphery of the container body neck and neck, and the mounting cap is erected from the top plate, and the guide cylinder is A liquid flow path from the inside of the fitting vertical cylinder fitted to the upper end of the stem that protrudes so as to be able to be pushed down in an urging state is provided, and the lower end opening has an outer peripheral wall that hangs down on the outer circumference of the guide cylinder. A thing provided with the ejection head covered with a cylindrical cover is proposed (for example, refer to patent documents 1).

  The so-called vertical pump-equipped container as described above is required to have a jet port opened in correspondence with a printed pattern or the like applied to the outer surface of the container body in the display state at the time of sale. That is, if the printed pattern or the like and the outlet opening direction are not unified, a plurality of containers are displayed in a disorderly manner, which is not preferable in appearance.

  In some cases, these pumps have a pipe for sucking up from the lower end of the cylinder hanging down on the container body, and the lower part of the pipe is bent downward and outward so that the lower end is positioned on the outer periphery of the bottom wall. In such a case, the container body is tilted to collect the remaining liquid on the outer peripheral portion of the bottom wall, and the pump is operated with the lower end of the pipe submerged in the remaining liquid, so that the remaining liquid can be ejected without remaining. It is desirable that the bending projecting direction of the suction pipe viewed from above the container coincides with the nozzle projecting direction.

Since the above vertical pump is assembled in advance and attached to the container body, the bending direction of the suction pipe and the outlet opening direction are made the same in the integrated assembly state, If the spout is opened to the front of the container when the mounting cylinder is completely screwed, the above request is satisfied. Note that the front of the container body and the opening direction of the jet outlet can be matched by, for example, predetermining the start end of the threaded portion of the container body neck and the mounting cylinder and the lead to be constant.
Japanese Patent Laid-Open No. 9-58731

  By assembling the ejection port so as to face the container body in a predetermined direction as described above, it is possible to display a plurality of containers in a controlled manner, but the ejection head may come out of the stem for some reason when used by consumers. In such a case, it is desirable that re-fitting to the stem is easy in a predetermined direction.

  The present invention has been made in view of the above points, and proposes a liquid ejector that can be re-fitted very easily in the predetermined direction when the consumer re-fits the ejection head. Is.

  In order to solve the above-mentioned problems, the liquid ejector according to the first aspect of the present invention is a liquid ejector in which the pump 3 is mounted on the container body 2, and the stem 13 projects into the guide cylinder 12 so as to be able to be pushed down in an upward biased state. In addition, the ejection head 9 having a cylindrical cover 14 with a lower end opening is fitted to the upper end of the stem 13, and the cylindrical cover peripheral wall 14b can be pushed down to the outer periphery or inner periphery of the guide cylinder 12. In the suspended liquid ejector, the guide tube 12 and the ejection head peripheral wall 14b are cross-sectionally crossed so that the ejection head peripheral wall 14b can be fitted to the guide tube 12 in one direction. The liquid ejector is characterized by having a similar shape.

  According to a second aspect of the present invention, in the liquid ejector according to the first aspect, the guide cylinder 12 has an oval cross section, and the ejection head peripheral wall 14b has an oval shape having a cross section similar to the guide cylinder 12. It was configured as a liquid ejector.

  Further, the liquid ejector according to the third aspect of the invention is configured such that the suction pipe 22 constituting the lower end of the pump 3 is bent so that the tip thereof is opened at the lower end corner of the container body, and the outlet 8 of the ejection head 9 is connected to the pipe. The liquid ejector according to claim 1, which opens in the same direction as 22.

  A liquid ejector according to a fourth aspect of the present invention is a liquid ejector in which a pump 3 is mounted on a container body 2, and a stem 13 is protruded from a guide cylinder 12 so as to be pushed down in an upwardly biased state. A liquid jet is formed by fitting a jet head 9 having a top-covered cylindrical cover 14 at the upper end of 13 and hanging down the cylindrical cover peripheral wall 14b on the outer circumference or inner circumference of the guide cylinder 12 so as to be able to be pushed down. In the container, the guide cylinder 12 and the jet head peripheral wall 14b are formed in a cross-sectional similar shape so that the jet head peripheral wall 14b can be fitted to the guide cylinder 12 in two directions. In addition, the liquid ejector is characterized in that positioning means comprising longitudinal grooves 20 and longitudinal ridges 21 are provided on the opposing surfaces of the guide cylinder 12 and the ejection head peripheral wall 14b, respectively.

  5. The liquid ejector according to claim 5, wherein the guide tube 12 has an elliptical cross section, and the ejection head peripheral wall 14b has an elliptical cross section similar to the guide tube 12. Liquid ejector.

  6. The liquid ejector according to claim 6, wherein the guide cylinder 12 has a rectangular cross section, and the ejection head peripheral wall 14b has a rectangular cross section similar to the guide cylinder 12. Configured as a liquid ejector.

  Further, the liquid ejector according to the seventh aspect of the invention is configured such that the suction pipe 22 constituting the lower end of the pump 3 is bent so that the tip thereof is opened at the lower end corner of the container body, and the outlet 8 of the ejection head 9 is connected to the pipe. The liquid ejector according to claim 4, which opens in the same direction as 22.

  Further, the liquid ejector according to the eighth aspect of the present invention is a liquid ejector in which the pump 3 is mounted on the container body 2, and the stem 13 projects in the guide cylinder 12 so as to be able to be pushed down in an upward biased state. A liquid jet is formed by fitting a jet head 9 having a top-covered cylindrical cover 14 at the upper end of 13 and hanging down the cylindrical cover peripheral wall 14b on the outer circumference or inner circumference of the guide cylinder 12 so as to be able to be pushed down. In the container, the guide cylinder 12 and the jet head peripheral wall 14b are formed in a cross-sectional shape similar to each other so that the jet head peripheral wall 14b can be fitted to the guide cylinder 12 in two directions. At the same time, the stem 13 is configured to project from the eccentric position of the guide cylinder 12 and is configured as a liquid ejector.

  9. The liquid ejector according to claim 9, wherein the guide cylinder 12 has an elliptical cross section, and the ejection head peripheral wall 14b has an elliptical cross section similar to the guide cylinder 12. It was configured as a liquid ejector.

  The liquid ejector according to the tenth aspect of the present invention bends the suction pipe 22 constituting the lower end of the pump 3 so that the tip of the pipe is opened at the lower end corner of the container body, and the outlet 8 of the ejection head 9 is connected to the pipe. The liquid ejector according to claim 8, which is open in the same direction as 22.

  As described above, the liquid ejector according to the present invention has the above-described configuration, so that the ejection head that is detached from the stem can be easily mounted in a predetermined direction. In addition, since the structure of the guide cylinder and the ejection head peripheral wall only need to be changed, the intended purpose can be achieved without complicated manufacturing. Therefore, the storage liquid can be efficiently ejected by configuring the ejection head of the ejection head and the pipe for suction to open in the same direction.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in the drawings, the liquid ejector 1 of the present invention includes a container body 2 and a pump 3.

  The container body 2 is formed of a synthetic resin or the like, and stands up the mouth and neck. In the illustrated example, the container body 2 is configured such that a mouth-and-neck portion 6 is erected from the upper end of a cylindrical body portion 4 via a shoulder portion 5.

  The pump 3 is also made of synthetic resin or the like, and is detachably attached to the container body 2 by a mounting cap 7 fitted to the container body neck 6 and has a jet head with a jet port 8 at the upper end. 9 is configured so that it can be pushed down in an upward biased state, and the ejection head 9 is further moved up and down to suck up the liquid in the container through the suction pipe at the lower end and eject it from the ejection port 8. It is what makes.

  The mounting cap 7 has a flange-like top plate 11 extending from the upper end of the mounting tube 10 detachably fitted to the outer periphery of the container body neck portion 6, and the guide tube 12 is erected from the inner peripheral edge of the top plate 11. The form is used.

  Further, the ejection head 9 is mounted by fitting the fitting cylinder 10 on the upper end of a stem 13 that protrudes into the guide cylinder 12 so as to be pushed down in an upward biased state, and the outer circumference or inner circumference of the guide cylinder 12. Further, a tubular cover 14 having a lower end opening with a peripheral wall hanging down so as to be able to be pushed down, and a liquid flow path a extending from the inside of the stem 13 to the attached jet outlet 8 are employed.

  In the illustrated example, the ejection head 9 has a cover 14 in which a peripheral wall 14b is suspended from the peripheral portion of the top wall 14a, and a base end is provided at the upper portion of a fitting cylinder 15 suspended from the center of the back surface of the top wall 14a. A nozzle 16 that opens and penetrates the peripheral wall 14 b is provided, and the tip of the nozzle 16 is opened as a jet port 8. Then, the lower part of the fitting cylinder 15 is fitted to the upper end of the stem 13 so that the ejection head 9 is fitted to the stem 13, and the liquid flow from the stem 13 through the fitting cylinder 15 and the nozzle 16 to the ejection port 8. A path a is formed. At this time, the lower end of the peripheral wall 14b hangs down so as to be positioned on the outer periphery of the upper end of the guide tube 12.

  With respect to the mechanism for sucking up the liquid in the container body by moving the ejection head 9 up and down and ejecting it from the ejection port 8, this type of conventional pump can be employed. For example, the upper end is fitted to the mounting cap 7. The cylinder 17 is suspended in the container body 2. In the illustrated example, the cylinder 17 has a flange 18 projecting from the upper part of the outer periphery, and is fitted and fixed to the upper end of the inner periphery of the mounting cylinder 10 of the mounting cap 7. The lower end is suspended in the container body 2. The upper end of the cylinder 17 opens into the guide tube 12, and the stem 13 projects from the upper end.

  Although not shown, a piston sliding in the cylinder 17 is connected to the lower end of the stem, and a suction valve is provided in the lower end of the cylinder 17 and a discharge valve is provided in the stem 13. A pipe for wicking is suspended at the lower part of the body. Then, the pressure in the cylinder 17 of the piston that is lowered by pushing down the ejection head 9 causes the liquid in the cylinder to be ejected from the ejection port 8 through the stem 13, and the piston, the stem, and the ejection head by an upward biasing force such as a coil spring. The actuating member made up is sucked up the liquid in the container body through the pipe into the negative pressure cylinder.

  According to the first aspect of the present invention, in this type of liquid ejector, the guide tube 12 and the ejection head peripheral wall 14b can be fitted to the guide tube 12 in one direction. As shown in FIG. That is, the ejection head 9 is configured to be fitted to the guide cylinder 12 only in a predetermined direction. Specifically, the guide tube 12 and the ejection head peripheral wall are non-circular in cross section, and a peripheral surface that is not composed of a plurality of identical repeating unit surfaces can be adopted. More specifically, a cross-sectional oval shape, a cross-sectional trapezoidal shape, a cross-sectional trapezoidal shape, and other cross-sectional irregular shapes that satisfy the above requirements can be employed.

  FIG. 1 and FIG. 2 show an example, in which the guide tube 12 is formed in a cross-sectional egg shape, and the ejection head peripheral wall 14b is formed in a cross-sectional egg shape similar to the guide tube 12. Further, the upper end of the stem 13 is formed in the small diameter portion 13a, and the fitting cylinder 15 is fitted therein. In the liquid ejector 1 configured as described above, for example, when the ejection head 9 is mounted on the stem 13, the fitting cylinder 15 is fitted to the stem 13, and then the ejection head peripheral wall 14 b is positioned on the outer circumference of the guide cylinder 12. If combined, the direction of the ejection head 9 will naturally become the predetermined direction. At this time, as shown in FIG. 3, the suction pipe 22 constituting the lower end of the pump 3 is bent to open its tip at the lower end corner of the container body, and the jet outlet 8 of the jet head 9 is set in the same direction as the pipe 22. By configuring so as to open, efficient ejection with little residual liquid can be performed. In the figure, reference numeral 23 denotes a lower end opening of the pipe. Further, such a configuration can be similarly adopted in each embodiment described later.

  According to the present invention, the guide cylinder 12 and the ejection head peripheral wall 14b are fitted in the liquid ejector, and the ejection head peripheral wall 14b is fitted in the guide cylinder 12 in two directions. Are formed in a similar cross-sectional shape as possible. That is, the ejection head 9 is configured to be fitted to the guide cylinder 12 only in two predetermined directions. Specifically, the guide cylinder 12 and the ejection head peripheral wall are non-circular in cross section, It is possible to adopt a configuration in which the portion is point-symmetric and has a peripheral surface that is not composed of three or more identical repeating unit surfaces. More specifically, a cross-sectional elliptical shape, a cross-sectional rectangular shape, a cross-sectional rhombus shape, and other cross-sectional irregular shapes satisfying the above requirements can be adopted.

  According to the fourth aspect of the present invention, positioning means composed of the longitudinal groove 20 and the longitudinal protrusion 21 is provided on the opposing surface of the guide tube 12 and the ejection head peripheral wall 14b. As the positioning means, it is only necessary to provide a relative vertical movement at an arbitrary position of the guide cylinder 12. Therefore, the longitudinal groove 20 may be provided in the guide tube 12 and the vertical protrusion 21 may be provided in the ejection head peripheral wall 14b, or vice versa.

  FIG. 4 and FIG. 5 show an example thereof, and the guide cylinder 12 is formed in a cylindrical shape with an elliptical cross section, and the ejection head peripheral wall 14b is formed in a cylindrical shape with a slightly larger elliptical cross section. Further, as the positioning means, a vertical groove 20 is provided on the outer surface of the guide cylinder 12, and a vertical protrusion 21 is provided at a predetermined position on the inner surface of the ejection head peripheral wall 14b. In this case, the longitudinal groove 20 is vertically provided in a portion extending from the upper end of the guide tube 12 to the lower portion thereof.

  In the liquid ejector 1 configured as described above, for example, when the ejection head 9 is mounted on the stem 13, the fitting cylinder 15 is fitted to the stem 13, and then the ejection head peripheral wall 14 b is positioned on the outer circumference of the guide cylinder 12. If combined, the direction of the ejection head 9 becomes a predetermined direction at one fitting position where the vertical ridges 21 and the vertical grooves 20 of the positioning means match. Therefore, the direction of the ejection head 9 can be mounted in a predetermined direction without fail by at least two selections.

  FIG. 6 shows an example in which the guide cylinder 12 is formed in a cylindrical shape having a rectangular cross section and the ejection head peripheral wall 14b is formed in a cylindrical shape having a slightly large rectangular cross section. Further, as the positioning means, a vertical groove 20 is provided on the outer surface of the guide cylinder 12, and a vertical protrusion 21 is provided at a predetermined position on the inner surface of the ejection head peripheral wall 14b. Other configurations and operations are the same as those in the above embodiment.

  According to the present invention of claim 8, in the liquid ejector described above, the guide tube 12 and the ejection head peripheral wall 14b can be fitted to the guide tube 12 in two directions. In this way, the cross-sectional shape is similar to each other, and the stem 13 protrudes at an eccentric position of the guide tube 12.

  In the present invention, the configuration of the guide cylinder 12 and the ejection head peripheral wall 14b is the same as that of the invention of claim 4 above. Further, by projecting the stem 13 at the eccentric position of the guide cylinder 12, the stem 13 and the fitting cylinder 15 are fitted when fitted in one of the two directions in which the ejection head 9 can be fitted. Therefore, also in this case, the direction of the ejection head 9 can be surely mounted in a predetermined direction by at least two selections.

  FIG. 7 and FIG. 8 show an example, in which the guide cylinder 12 has an elliptical cross section, and the ejection head peripheral wall 14b is formed in a slightly larger elliptical cross section. In this case, however, the guide tube 12 is shifted rearward on the mounting cap 7 so that the stem 13 protrudes from the front eccentric position in the guide tube 12.

It is a partially cutaway principal part side view which shows one Example of this invention. It is a cross-sectional view along the AA line of FIG. It is a partially cutaway side view of the same Example. It is a partially notched principal part side view which shows the other Example of this invention. FIG. 5 is a cross-sectional view taken along the line BB in FIG. 4. It is a cross-sectional view showing still another embodiment of the present invention. It is a partially notched principal part side view which shows other Example of this invention. It is a cross-sectional view along the CC line of FIG.

Explanation of symbols

2 ... Container body, 3 ... Pump, 6 ... Mouth and neck, 7 ... Mounting cap, 8 ... Spout,
9 ... ejecting head, 10 ... mounting tube, 12 ... guide tube, 13 ... stem, 14 ... cover,
14b ... peripheral wall, 20 ... vertical groove, 21 ... vertical ridge, a ... liquid flow path

Claims (10)

A liquid ejector having a pump body 3 mounted on a container body 2, a stem 13 protruding in a guide cylinder 12 so as to be able to be pushed down in an upwardly biased state, and a top cylindrical cover having a lower end opening at the upper end of the stem 13 In the liquid ejector in which the ejection head 9 having 14 is fitted and the cylindrical cover peripheral wall 14b is suspended so as to be pressed down on the outer periphery or the inner periphery of the guide cylinder 12, the guide cylinder, the ejection A liquid ejector characterized in that the head peripheral wall 14b is formed in a similar cross-sectional shape so that the jet head peripheral wall 14b can be fitted to the guide tube 12 in one direction. 2. The liquid ejector according to claim 1, wherein the guide tube has an oval cross section and the ejection head peripheral wall 14b has an oval shape having a cross section similar to the guide tube. The suction pipe (22) constituting the lower end of the pump (3) is bent and its tip is opened at the lower end corner of the container body, and the jet outlet (8) of the jet head (9) is opened in the same direction as the pipe (22). Liquid ejector as described. A liquid ejector having a pump body 3 mounted on a container body 2, a stem 13 protruding in a guide cylinder 12 so as to be able to be pushed down in an upwardly biased state, and a top cylindrical cover having a lower end opening at the upper end of the stem 13 In the liquid ejector in which the ejection head 9 having 14 is fitted and the cylindrical cover peripheral wall 14b is suspended so as to be pressed down on the outer periphery or the inner periphery of the guide cylinder 12, the guide cylinder, the ejection The head peripheral wall 14b is formed in a similar cross-sectional shape so that the ejection head peripheral wall 14b can be fitted in the guide cylinder 12 in two directions, and the guide cylinder 12 and the ejection head peripheral wall 14b A liquid ejector characterized in that positioning means comprising vertical concave grooves 20 and vertical ridges 21 are provided on opposing surfaces, respectively. The liquid ejector according to claim 4, wherein the guide cylinder 12 has an elliptical cross section, and the ejection head peripheral wall 14 b has an elliptical cross section similar to the guide cylinder. 5. The liquid ejector according to claim 4, wherein the guide cylinder has a rectangular cross section, and the jet head peripheral wall has a rectangular cross section similar to the guide cylinder. A suction pipe (22) constituting the lower end of the pump (3) is bent and its tip is opened at the lower end corner of the container body, and the jet outlet (8) of the jet head (9) is opened in the same direction as the pipe (22). 4. Liquid ejector according to 4. A liquid ejector having a pump body 3 mounted on a container body 2, a stem 13 protruding in a guide cylinder 12 so as to be able to be pushed down in an upwardly biased state, and a top cylindrical cover having a lower end opening at the upper end of the stem 13 In the liquid ejector in which the ejection head 9 having 14 is fitted and the cylindrical cover peripheral wall 14b is suspended so as to be pressed down on the outer periphery or the inner periphery of the guide cylinder 12, the guide cylinder, the ejection The head peripheral wall 14b and the jet head peripheral wall 14b are formed to have similar cross-sectional shapes so that they can be fitted to the guide cylinder 12 in two directions, and the stem 13 is formed in an eccentric position of the guide cylinder 12. A liquid ejector characterized by projecting into The liquid ejector according to claim 6, wherein the guide cylinder 12 has an elliptical cross section, and the ejection head peripheral wall 14 b has an elliptical cross section similar to the guide cylinder. The suction pipe (22) constituting the lower end of the pump (3) is bent and its tip is opened at the lower end corner in the container, and the jet outlet (8) of the jet head (9) is opened in the same direction as the pipe (22). The liquid ejector according to 8.

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