JP6043609B2 - Pump type dispenser - Google Patents

Description

  The present invention relates to a pump-type dispenser that drives a pump by pushing down a nozzle head and dispenses contents such as liquid in a container, and more particularly to a nozzle head of the dispenser.

  A pump-type dispenser usually has a base cap attached to the mouth / neck portion of a container body, a pump suspended and fixed inside the container body through the mouth / neck portion by the base cap, and a piston of the pump by being pushed down and raised. And a nozzle head that sucks, pressurizes, and pumps the contents inside the container body, and discharges the contents from the tip of the nozzle to the outside.

  By the way, in the nozzle head of a general pump type dispenser, the tip of the nozzle is in an open state, and the contents remaining between the check valve inside the pump and the nozzle tip are exposed to the outside air. Has been. For this reason, the contents remaining in the nozzle and the pump may be deteriorated, that is, lost due to solidification due to drying, oxidation due to outside air, evaporation of components such as fragrance volatilization, and dripping.

  Therefore, conventionally, as described in, for example, Patent Document 1, the lid provided at the nozzle tip of the dispenser is automatically opened in conjunction with the depression of the nozzle head when the contents are dispensed. As described in Patent Document 2, a configuration has been proposed in which the lid provided at the nozzle tip of the dispenser is manually opened when the contents are dispensed, but the former nozzle head is pushed down. In the case of a configuration in which the lid is opened in conjunction with the movement, the structure becomes complicated and the nozzle head becomes large. In the latter configuration in which the lid is manually opened, forgetting to open or closing may occur.

JP 2010-149904 A JP 2005-153984 A JP 2010-006447 A

  On the other hand, as described in Patent Document 3, for example, a nozzle tip member that can be elastically deformed is provided at the tip of the nozzle, and a slit formed in the nozzle tip member is opened by elastic deformation of the nozzle tip member. The structure of a dispenser nozzle that closes the slit by the elastic restoring force of the nozzle tip member after use is also proposed, and by using an elastically deformable nozzle tip member having this slit, It is conceivable to prevent the residual contents from deteriorating and to suppress dripping.

  However, simply providing the elastically deformable nozzle tip member having the conventional slit at the tip of the nozzle of the nozzle head has a disadvantage that the discharge direction of the contents cannot be determined in a desired direction because the opening area of the slit is small. In addition, there is a possibility that inconvenience that the momentum of discharging the contents becomes too strong may occur.

  Therefore, an object of the present invention is to eliminate the above-mentioned disadvantages in the pump type dispenser.

A pump-type dispenser according to the present invention that solves the above problems includes a base cap that is attached to the mouth and neck of a container body, a pump that is suspended and fixed inside the container body through the mouth and neck by the base cap, and a push-down device. Then, the piston of the pump is driven by ascending and sucking, pressurizing, and feeding the contents inside the container body, and the contents are passed through a slit of an elastically deformable nozzle tip member provided at the tip of the nozzle. A pump-type dispenser comprising: a nozzle head for discharging
The nozzle head has a slit covering member that covers the periphery of the slit with the lower side opened, and the nozzle tip member has a disk-like base portion and a protruding portion that protrudes from the base portion and has the slit penetrated through the tip portion. and it is characterized in that comprising a.

  In the pump type dispenser of the present invention, the nozzle head is provided with a slit covering member that covers the periphery of the slit with the lower side open, so that the nozzle head is pushed down to discharge the contents in the container body. When the pump is driven, the nozzle tip member provided at the tip of the nozzle is elastically deformed so that the slit of the nozzle tip member opens due to the pressure of the contents in the nozzle, and the slit cover that covers the periphery of the slit The contents are discharged toward the inner surface of the member, and the slit covering member is applied to the inner surface to reduce the momentum, and the contents are discharged downward and guided downward.

  Therefore, according to the pump type dispenser of the present invention, the elastically deformable nozzle tip member having the slit is provided at the tip of the nozzle of the nozzle head, so that it remains in the nozzle and the pump even in the case of a long nozzle. With respect to the contents, it is possible to prevent the loss of efficacy due to deterioration, that is, solidification by drying, oxidation by outside air, evaporation of fragrance, and the like, and suppression of dripping. In addition, the slit cover member weakens the momentum of the contents and discharges it downwards, eliminating the disadvantage that the discharge direction of the contents is not determined in the desired direction and the momentum of the discharge of the contents becoming too strong. Thus, the user can easily receive the contents with a palm or the like.

  In the pump type dispenser of the present invention, it is preferable that the slit covering member is provided at the tip end portion of the nozzle so as to cover the nozzle tip member because the nozzle head is hardly increased.

  In the pump type dispenser of the present invention, when the slit covering member is provided on the nozzle head so as to entirely cover the nozzle head, it is easily provided on the nozzle head by a fitting structure or the like. This is preferable.

It is sectional drawing which shows the structure of one Example of the pump type extractor of this invention. (A) is sectional drawing which expands and shows the O section of the pump type extractor of the said Example, (b) is the O arrow view which looked at the O section in (a) from the arrow O direction. It is. It is sectional drawing which shows the pump type extractor of the said Example in the state which pushed down the nozzle head. It is sectional drawing which shows the structure of other one Example of the pump type extractor of this invention. It is a front view which expands and shows the nozzle head of the pump type extractor of the said Example. (A), (b) is a perspective view which shows the other example of a structure of the nozzle tip member of the pump type extractor of this invention, respectively.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a cross-sectional view showing the configuration of an embodiment of the pump type dispenser of the present invention, and FIG. 2A is an enlarged cross section showing an O portion of the pump type dispenser of the above embodiment. FIG. 2 (b) is a view of the O portion in FIG. 2 (a) as viewed from the direction of arrow O. In the figure, reference numeral 1 is a base cap, 2 is a pump, 3 is a nozzle head. Each is shown.

  The base cap 1 is attached to the mouth / neck portion of a container body (not shown), and surrounds the top / bottom plate 1a having a through-hole formed in the center and the outer peripheral end of the top plate 1a to surround the mouth / neck portion of the container. It has a cylindrical body 1b, a threaded portion 1c formed inside the cylindrical body 1b and screwed to the mouth and neck of the container body, and a standing annular peripheral wall 1d erected from the inner peripheral end of the top plate 1a. Yes. The base cap 1 may be fitted into the mouth and neck of the container body instead of screwing.

  The pump 2 is suspended and fixed inside the container body by the base cap 1 through the mouth and neck. The pump 2 is supported by being suspended from the top plate 1a of the base cap 1, and has a reduced diameter portion 4a, a bottom wall 4b and a suction portion at the bottom. A cylinder 4 having a port 4c; a guide cylinder 5 which is fixed to the inside of the upper end of the cylinder 4 and integrally has an upper guide cylinder body 5a and a lower enlarged diameter part 5b; An upper hollow stem 6 having a stem main body 6a slidable along the peripheral wall, an upper hollow stem 6 formed integrally with a lower end portion of the stem main body 6a, and having an enlarged diameter portion 6b fitted into the enlarged diameter portion 5a of the guide tube 5, and an upper hollow The bottom 6 of the stem 6 is connected to the lower portion of the stem body 6a and has an opening 7a on the intermediate peripheral wall and an outer peripheral flange 7b on the lower end, and slides along the inner peripheral wall of the cylinder 4. Possible A pump spring 9 that is interposed between the stone 8 and the bottom wall 4b of the cylinder 4 and the outer peripheral flange 7b of the lower hollow stem 7 and constantly urges the upper hollow stem 6 and the lower hollow stem 7 upward. And a suction valve 10 provided on the bottom wall 4 b of the cylinder 4.

  Here, the cylinder 4 has a plurality of longitudinal ribs 4d that are arranged on the inner circumferential surface from the reduced diameter portion 4a to the bottom wall 4b at intervals in the circumferential direction and extend in the vertical direction. The piston 8 integrally has an upper inner wall 8a and an upper outer wall 8b that are annular in the upper part of the piston, and a lower inner wall 8c and a lower outer wall 8d that are annular in the lower part of the piston, respectively. Is in close sliding contact with the outer peripheral surface of the lower hollow stem 7 and the inner peripheral surface of the lower-diameter portion 5 b on the lower side of the guide tube 5, and the upper outer wall 8 b and the lower outer wall 8 d are in close contact with the inner peripheral wall of the cylinder 4. The lower inner side wall 8c fits separably into the annular recess on the upper surface of the outer peripheral flange 7b of the lower hollow stem 7 in a separable manner. A through hole 4e is formed in the cylinder 4 so as to open between the upper outer wall 8b and the lower outer wall 8d at the ascending limit position of the piston 8 shown in FIG.

  The outer peripheral flange 7b at the lower end of the lower hollow stem 7 has a plurality of vertical ribs 7c arranged on the outer peripheral surface at intervals in the circumferential direction and extending in the vertical direction. 4 is in sliding contact with the inner peripheral wall. The suction valve 10 has a spherical valve body 10 a and functions as a check valve that allows only the suction of the contents inside the container body from the suction port 4 c of the cylinder 4 into the cylinder 4. The pump spring 9 is formed by a coil spring and has small-diameter portions 9a and 9b at upper and lower ends thereof. The upper-end-side small-diameter portion 9a is accommodated in a central recess on the lower surface of the outer peripheral flange 7b, and the lower-end-side small-diameter portion 9b is It is accommodated in the upper end part of the suction valve 10 and fulfills the function of preventing the valve body 10a from coming off.

  The nozzle head 3 drives the piston 8 of the pump 2 by pushing down and ascending the nozzle head 3 to suck, pressurize, and pump the contents inside the container body, and the operation portion 3a to which the pressing force is directly applied. And an inner cylindrical body 3b that is integrally connected to the operating portion 3a and closely fits to the upper end of the stem body 6a of the upper hollow stem 6, and is integrally connected to the cylindrical body 3b and is fed from the upper hollow stem 6. A nozzle 3d having a discharge hole at the tip 3c for discharging the supplied contents to the outside, and an outer cylinder 3e that hangs down from the outer peripheral end of the operation part 3a and surrounds the inner cylinder 3b. When the nozzle head 3, which will be described later, is pushed down, the standing annular peripheral wall 1d of the base cap 1 is accommodated in the downward annular recess between the inner cylinder 3b and the outer cylinder 3e.

  Here, an elastically deformable nozzle tip member 11 made of a soft material is disposed at the tip portion 3c of the nozzle 3d. As shown in enlarged views in FIGS. Has a disk-like base portion 11a and a protruding portion 11b protruding like a wedge from the base portion 11a, and a slit 11c extending in a single character in the horizontal direction is formed through the tip of the protruding portion 11b. An extension nozzle 12 as a slit covering member is fitted to the tip portion 3c of the nozzle 3d. The extension nozzle 12 has a passage 12a bent in a substantially L shape and covers the slit 11c of the nozzle tip member 11 with the inner surface of the passage 12a. The extension nozzle 12 holds the base portion 11a of the nozzle tip member 11 between the base portion 12b and the tip portion 3c of the nozzle 3d, and extends in the axial direction on the outer peripheral surface of the nozzle 3d. Positioning in the circumferential direction is performed by fitting the formed groove 3f with the corresponding protrusion 12c formed on the inner peripheral surface of the base portion 12b, and the distal end portion of the passage 12a is opened obliquely downward.

  The case where the pump type dispenser of the present embodiment configured as described above is used will be described. First, from the state shown in FIG. 1, a pressing force is applied to the nozzle head 3 with a fingertip or the like as indicated by an arrow P in FIG. In addition, when the nozzle head 3 is pushed down, the pump 2 is driven, and the upper hollow stem 6 and the lower hollow stem 7 are integrally lowered while compressing the pump spring 9. The lower end of the expanded diameter portion 6b contacts the base of the upper inner wall 8a of the piston 8, and the lower inner wall 8c of the piston 8 moves out of the annular recess on the upper surface of the outer peripheral flange 7b of the lower hollow stem 7. There is a gap between them, and then the upper hollow stem 6 and the lower hollow stem 7 lower the piston 8 together.

  As a result, the contents previously sucked into the cylinder 4 from the inside of the container body are pressurized by the suction valve 10 while being prevented from returning to the inside of the container body, and as shown by the arrows in FIG. The gap between the outer peripheral flange 7b at the lower end of the side hollow stem 7 and the inner peripheral wall of the cylinder 4 is pushed between the longitudinal ribs 7c to the lower side of the piston 8 and from there is further pushed to the intermediate peripheral wall of the lower hollow stem 7 It enters into the lower hollow stem 7 through the opening 7 a, passes through the upper hollow stem 6, and is pumped into the nozzle 3 d of the nozzle head 3. At this time, since the piston 8 is disengaged downward from the through hole 4e of the cylinder 4, the inside of the container body and the outside communicate with each other through the through hole 4e, and the contents are poured into the inside of the container body. Outside air according to the minute is introduced.

  The content pumped into the nozzle 3d of the nozzle head 3 enters the protruding portion 11b of the nozzle tip member 11 from the tip 3c of the nozzle 3d, pressurizes the protruding portion 11b from the inside, and elastically deforms the slit 11c. Is discharged from the opening of the slit 11c toward the inner surface of the passage 12a of the extension nozzle 12, and comes into contact with the L-shaped portion of the passage 12a. The extension nozzle 12 guides the contents weakened by hitting the inner surface of the passage 12a to the tip of the passage 12a that opens obliquely downward, and discharges it obliquely downward.

  Thereafter, when the pressing force of the nozzle head 3 is released and the upper hollow stem 6 and the lower hollow stem 7 are lifted together with the nozzle head 3 by the elastic restoring force of the pump spring 9, first, The lower end of the enlarged diameter portion 6 b of the hollow stem 6 is separated from the base of the upper inner wall 8 a of the piston 8, and the lower inner wall 8 c of the piston 8 is fitted into the annular recess on the upper surface of the outer peripheral flange 7 b of the lower hollow stem 7. The gap between them is closed, and then the upper hollow stem 6 and the lower hollow stem 7 raise the piston 8 together. Thereby, the pressure in the cylinder 4 decreases, and the contents inside the container body are sucked into the cylinder 4 from the suction port 4 c through the suction valve 10. Further, the slit 11c is closed by the elastic restoring force of the protruding portion 11b of the nozzle tip member 11, and the through hole 4e of the cylinder 4 is located between the upper outer wall 8b and the lower outer wall 8d of the piston 8 and is closed by the piston 8. Is done.

  Therefore, according to the pump type dispenser of the present embodiment, the elastically deformable nozzle tip member 11 is provided in the tip portion 3c of the nozzle 3d of the nozzle head 3, and the slit formed in the protruding portion 11b of the nozzle tip member 11 11c is opened by elastic deformation of the protruding portion 11b to discharge the contents, and after use, the slit 11c is closed by the elastic restoring force of the protruding portion 11b. Therefore, even in the case of a long nozzle 3d, the nozzle 3d and the pump 2 With respect to the contents remaining inside, it is possible to prevent loss of efficacy due to deterioration, that is, solidification by drying, oxidation by outside air, volatilization of perfume, and the like, and prevention of dripping. Moreover, since the extension nozzle 12 weakens the momentum of the contents and discharges it downward, the disadvantage that the ejection direction of the contents is not determined in a desired direction and the disadvantage that the momentum of ejection of the contents becomes too strong are solved. Thus, the user can easily receive the contents with a palm or the like.

  Furthermore, according to the pump type dispenser of the present embodiment, since the extension nozzle 12 is provided on the tip 3c of the nozzle 3d so as to cover the nozzle tip member 11, the nozzle head 3 is hardly increased, The design of the nozzle head 3 can be maintained well.

  FIG. 4 is a sectional view showing the configuration of another embodiment of the pump type dispenser of the present invention, and FIG. 5 is an enlarged front view showing the nozzle head of the pump type dispenser of the embodiment. is there. In the pump type dispenser of this embodiment, instead of the extension nozzle 12 in the previous embodiment, a cylindrical nozzle cap 13 that clamps and fixes the nozzle tip member 11 between the tip portion 3c of the nozzle 3d is provided. It differs from the first embodiment only in that a nozzle head cover 14 that covers the entire nozzle head 3 as a slit covering member that covers the periphery of the slit 11c with the lower portion opened is provided. This is the same as the previous embodiment.

  Here, the nozzle head cover 14 accommodates the nozzle 3d, the nozzle tip member 11, and the nozzle cap 13, and has a downward groove portion 14a having an inclined end wall facing the slit 11c of the protruding portion 11b of the nozzle tip member 11. , And projecting inward from a plurality of locations spaced in the circumferential direction at the lower end portion of the outer cylindrical body 3e, and a downward notch 14b communicating with the groove portion 14a and enabling the nozzle 3d to be accommodated in the nozzle head cover 14. And a plurality of protrusions 14c that engage with the lower end portion of the outer cylindrical body 3e and fit the nozzle head cover 14 to the nozzle head 3.

  Similarly to the previous embodiment, the pump type dispenser of the present embodiment is also provided with a nozzle tip member 11 that can be elastically deformed at the tip portion 3c of the nozzle 3d of the nozzle head 3, and is formed at the protruding portion 11b of the nozzle tip member 11. The slit 11c is opened by elastic deformation of the protruding portion 11b to discharge the contents, and after use, the slit 11c is closed by the elastic restoring force of the protruding portion 11b. Therefore, even in the case of the long nozzle 3d, the nozzle 3d or About the contents which remain | survived in the pump 2, deterioration of the effect by evaporation of components, such as solidification by drying, oxidation by external air, volatilization of a fragrance | flavor, can be suppressed, and dripping can be suppressed. Moreover, the nozzle head cover 14 abuts the contents discharged from the slit 11c against the end wall of the downward groove 14a, weakens the contents and discharges them downward, so that the discharge direction of the contents is desired. It is possible to eliminate the inconvenience of not being determined in the direction and the inconvenience that the momentum of discharging the contents is too strong, and the user can easily receive the contents with the palm.

  Furthermore, according to the pump type dispenser of the present embodiment, since the nozzle head cover 14 is provided on the nozzle head 3 so as to cover the nozzle head 3 as a whole, the fitting as described above using the projection 14c is performed. The nozzle head 3 can be easily provided by the combined structure.

  6 (a) and 6 (b) are perspective views showing other examples of the configuration of the nozzle tip member of the pump-type dispenser of the present invention, and the nozzle tip member having a wedge-shaped protrusion 11b in the above embodiment. For example, a nozzle tip member 11 having a truncated conical protrusion 11b in which a slit 11c is formed at the tip recessed inward as shown in FIG. 6 (a) instead of 11, or shown in FIG. 6 (b). Alternatively, the nozzle tip member 11 having a substantially conical projection 11b in which a slit 11c is formed at the tip protruding in a hemispherical shape may be used.

  As mentioned above, although demonstrated based on the example of illustration, the pump type dispenser of this invention is not limited to the thing of the Example mentioned above, For example, the content in the container body by pushing down of a pressure accumulation type liquid jet pump or a nozzle head The shape of the slit of the nozzle tip member may be other shapes such as a Y shape or a cross shape instead of a single character. .

  Thus, according to the pump type dispenser of the present invention, the elastically deformable nozzle tip member having the slit is provided at the tip of the nozzle of the nozzle head. Therefore, even in the case of a long nozzle, the content remaining in the nozzle and the pump About a thing, deterioration, ie, the solidification by drying, the oxidation by external air, the loss of the effect by evaporation of components, such as volatilization of a fragrance | flavor, can be prevented, and dripping can be suppressed. In addition, the slit cover member weakens the momentum of the contents and discharges it downwards, eliminating the disadvantage that the discharge direction of the contents is not determined in the desired direction and the momentum of the discharge of the contents becoming too strong. Thus, the user can easily receive the contents with a palm or the like.

DESCRIPTION OF SYMBOLS 1 Base cap 1a Top plate 1b Cylindrical body 1c Screw part 1d Standing annular surrounding wall 2 Pump 3 Nozzle head 3a Operation part 3b Inner cylindrical body 3c Tip part 3d Nozzle 3e Outer cylindrical body 3f Groove 4 Cylinder 4a Reduced diameter part 4b Bottom wall 4c Port 4d Vertical rib 4e Through-hole 5 Guide tube 5a Guide tube main body 5b Expanded portion 6 Upper hollow stem 6a Stem body 6b Expanded portion 7 Lower hollow stem 7a Opening portion 7b Outer peripheral flange 7c Vertical rib 8 Piston 8a Upper inner side wall 8b Upper outer wall 8c Lower inner wall 8d Lower outer wall 9 Pump springs 9a, 9b Small diameter portion 10 Suction valve 10a Valve body 11 Nozzle tip member 11a Base portion 11b Protruding portion 11c Slit 12 Extension nozzle 12a Passage 12b Base portion 12c Projection 13 Nozzle cap 14 Nozzle head cover 14a Groove 14b Cut Can 14c projections

Claims (3)

A base cap attached to the mouth and neck of the container body;
A pump suspended and fixed inside the container body through the mouth and neck by the base cap;
The pump piston is driven by being pushed down and lifted to suck, pressurize, and pump the contents inside the container body, and the contents are passed through a slit of an elastically deformable nozzle tip member provided at the tip of the nozzle. A nozzle head for discharging objects to the outside,
In a pump type dispenser comprising:
The nozzle head has a slit covering member that covers the periphery of the slit with the lower part open .
The nozzle tip member includes a disk-shaped base portion and a protrusion portion protruding from the base portion and having the slit formed through the tip portion . The slit cover member is provided at a tip portion of the nozzle, pump dispensing device according to claim 1, characterized in that for covering the nozzle tip member. The slit cover member is provided on the nozzle head, pump dispensing device according to claim 1, characterized in that covering the nozzle head as a whole.

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