JP6622982B2 - Drop lid for viscous fluid container, and viscous fluid container having the drop lid - Google Patents

Description

The present invention lowers (displaces) in conjunction with changes in the liquid level of the viscous fluid when the contents are discharged from the container body containing the viscous fluid such as cream using a manual discharge pump. The present invention relates to a drop lid for scraping off the contents attached to the inner peripheral surface of the container body and using up the contents without waste , and a viscous fluid containing container having the drop lid .

  The conventional drop lid has a flat plate shape and is configured to descend together with the liquid level of the contents in the container body (Japanese Utility Model Publication No. 3-35209).

  However, in the case of this known example, the drop lid 18 has a small diameter corresponding to the step formed in the upper part with respect to the inner diameter of the container main body 1, so that a gap is generated between the drop lid 18 and the inner wall surface of the container main body 1. The contents cannot be used up without waste.

Japanese Patent Application Laid-Open No. 2004-34997 discloses a drop lid in which a slit is formed. If this slit is dropped from the diameter of the container body and the outer diameter of the lid is larger, the drop lid is deformed by the slit. This is for easy insertion, and the slit does not contribute to scraping off the contents attached to the inner wall surface of the container body.

  On the other hand, a known example in which a clearance is eliminated between the inner diameter of the container main body and the outer diameter of the drop lid in order to increase the scraping rate, and air escape grooves are formed radially on the back surface of the drop lid is disclosed in Japanese Utility Model Registration No. 3193592. It is introduced in. However, in the case of this drop lid B, the air escape groove E formed on the lower surface of the drop lid B has a dead end at its tip E ′, so there is no air escape space, and bubbles are mixed in the contents. There is a problem that this bubble causes the pump to move.

  Further, when the liquid level approaches the bottom surface of the container main body A due to the strong vacuum action by the pump, negative pressure is concentrated on the tip portion of the suction guide pipe F by driving the pump, and the dropping lid B is as shown in FIG. The surrounding area is lifted and deformed into a reverse C shape.

  As a result, there is a problem that the contents remain in the surrounding lifted portion and cannot be used up to the end.

  Further, in the case of this known example, the tip E ′ of the air escape groove E of the drop lid B is a dead end, so when the drop lid B descends to the bottom surface D in the container body A, the difference occurs. Even if it is in close contact with the bottom surface D due to pressure and the pump is removed from the container body A, the lid B does not come off from the bottom surface D, and if it is forcibly separated, the lid B comes off from the suction guide pipe F and the container body A is removed. May be left inside.

In FIG. 7 of the above known example , the symbol C is the bottom of the container body A, F ′ is the engagement piece of the drop lid B formed at the lower end of the suction guide pipe F, and G is the content formed at the lower end of the suction guide pipe F. a is a suction port.

An object of the present invention, when removing the drop lid (pump) using up the contents to the end of the container body, together with the drop lid is eliminated to be a close contact with Remove Mr. difficult situation to the bottom of the container body, in particular It is to provide a drop lid that prevents the drop lid from curving in a reverse C shape due to a large differential pressure when the content is highly viscous, and the content cannot be used up to the end.

In order to achieve the above object, a first invention of the present application is a drop lid that is displaced in conjunction with a liquid level displacement of a viscous fluid filled in a container body, and the drop lid is formed at the center of the drop lid. has a suction guide mounting hole pipe is fitted and attached to from the interior of the container body to suck the viscous fluid, the outer peripheral edge, an upward peripheral side wall in contact with the inner wall surface of the container body is formed, on the back side A plurality of air inflow grooves are formed radially around the mounting hole , and at least one end of the air inflow groove is open to the outside of the peripheral side wall.

Moreover, according to one embodiment of the first invention, a circumferential groove that communicates the plurality of air inflow grooves in the circumferential direction is formed .

Also, according to an embodiment of the first invention, the air inflow groove and the circumferential groove, a cross-sectional U-shape or a U-shape or V-shape, characterized in that.

Furthermore, the second invention of the present application is a viscous fluid containing container with a pump, wherein the drop lid of the first invention is mounted in the container body.

  As described above, the present invention forms the air inflow groove on the lower surface of the drop lid, so that even if the drop lid is in close contact with the bottom surface in the container body, the air in the container body passes through the air inflow groove. Can be dropped and guided to the lower surface of the lid.

  As a result, the drop lid does not adhere to the bottom surface of the container body and can be easily removed from the container body by pulling up the pump side.

  In addition, in the case of highly viscous contents, even if the drop lid approaches the bottom surface in the container body, air flows into the lower side (back side) of the drop lid via the air inflow groove. The pressure difference disappears and the drop lid does not deform.

  As a result, the contents are not dropped between the bottom surface of the lid and the bottom surface of the container body in the last stage, and can be used up to the end.

It is sectional drawing of the bottle with a pump which attached the drop lid which concerns on this invention. It is a perspective view of a drop lid. It is a top view of a drop lid. It is a bottom view of a drop lid. It is A-A 'line sectional drawing. It is a B-B 'line sectional view. It is explanatory drawing of the modification of the conventional drop lid.

  Hereinafter, an embodiment of a drop lid according to the present invention will be described in detail with reference to FIGS.

Reference numeral 1 denotes a drop lid according to the present invention. The drop lid 1 has a dish shape in which an edge 3 a having substantially the same diameter as the inner diameter of the container body 10 is formed on the upper edge of the peripheral side wall 3 and is formed on the bottom surface 2. A plurality of air inflow grooves 5 and 6 are formed radially from the mounting hole 4 formed in the center.

The front end 5b of the air inflow groove 5 is a dead end, while the front end 6b (see FIGS. 2, 4 and 5) of the air inflow groove 6 is closed on the outer peripheral surface of the peripheral side wall 3.

  The air inflow grooves 5 and 6 are communicated with each other by a circumferential groove 7 as shown in FIGS.

The number of air inlet grooves 5, 6 and circumferential grooves 7 Ri optionally der, when the viscosity of the contents is high increases the number can be reduced if it is lower.

2, in FIG. 3, 5a, 6a is a rib Ru appear on the back side (the upper surface of the drop lid 1) of the air inflow groove 5,6.

  In addition, the cross-sectional shape of the said air inflow grooves 5 and 6 is arbitrary, such as U shape, U shape, and V shape, Comprising: This cross-sectional shape is not limited in this invention.

  As shown in FIG. 1, the drop lid 1 described above has an inner wall diameter 13 of the container body 10 and an edge 3 a of the drop lid 1 set to have substantially the same diameter, and is fitted to the fitting portion 15 of the cylinder 16 of the pump 14. The suction guide pipe 18 is slidably attached in the vertical direction using the attachment hole 4.

  In FIG. 1, reference numeral 11 denotes a screw portion formed on the upper edge of the container body 10, and a cap 19 with a pump 14 is attached to the cap body 11 so as to be opened and closed using the screw portion 11.

  In FIG. 1, 17 is a suction guide pipe connected to the cylinder 16 of the pump 14, 17 a is a suction slit formed at the lower end of the suction guide pipe 7, and 17 b is an engagement piece that receives the drop lid 1 and prevents the drop. The contents a are sucked into the cylinder 16 through the suction guide pipe 17 from the suction slit 17a in FIG. 1 by driving the pump head 14a, and then discharged from the nozzle 20.

  As described above, when the pump head 14a of the pump 14 is moved up and down, the content a in the container body 10 is sucked into the cylinder from the suction slit 17a of the suction guide pipe 17 by the vacuum action, and is discharged from the nozzle 20. .

When the liquid level is lowered, the drop lid 1 is stably lowered (displaced) along the suction guide pipe 18 by the action of the vacuum action and the close contact with the liquid level, and the contents attached to the inner peripheral wall 13 of the container body 10. Scrape off a with edge 3a.

While the drop lid 1 descends while closely contacting the liquid surface, the air that has entered the air inflow grooves 5 and 6 passes between the peripheral side wall 3 of the drop lid 1 and the inner peripheral wall 13 of the container body 1 and drops on the bottom surface 2 of the lid 1. Since it flows into the inside, the bottom surface 2 of the drop lid 1 and the inside of the container body 10 are maintained at the same pressure, and the drop lid 1 scrapes the contents a to the end without deformation as described with reference to FIG.

  By this action, the contents a can be used up without waste, and the drop lid 1 does not adhere to the bottom surface of the container body 1 by the action of the air inflow grooves 5 and 6, and together with the pump 14 (cap 19). The contents a can be replenished by removing the container body 10.

  In addition, although the trunk | drum of the container main body 10 is exhibiting the cylindrical shape in a present Example, this trunk | drum may be an ellipse, a rectangle, etc., and the drop lid | cover 1 also becomes the shape in connection with this.

  The air inflow groove 6 of the drop lid 1 is provided in the oval direction in the case of an ellipse, and is provided in the corner direction (diagonal direction) in the case of a quadrangle.

DESCRIPTION OF SYMBOLS 1 Drop lid 2 Bottom face 3 Peripheral side wall 4 Mounting hole 5, 6 Air inflow groove 10 Container main body 13 Inner peripheral wall 14 Pump 18 Suction guide pipe 19 Cap 20 Nozzle

Claims (5)

A drop lid that is displaced in conjunction with the liquid level displacement of the viscous fluid filled inside the container body ,
The drop lid is
At its center, it has a mounting hole fitted and fitted to a suction guide pipe that sucks the viscous fluid from the inside of the container body ,
The outer peripheral edge, an upward peripheral side wall in contact with the inner wall surface of the container body is formed,
A plurality of air inflow grooves are formed radially on the back surface with the mounting hole as a center , and at least one tip of the air inflow groove opens to the outside of the peripheral side wall .
A drop lid for a viscous fluid containing container. On the back surface of the drop lid, a circumferential groove is further formed that communicates the plurality of air inflow grooves in the circumferential direction .
The drop lid for the viscous fluid containing container according to claim 1 . The air inflow groove is cross section U-shaped or U-shaped or V-shaped,
The drop lid for the viscous fluid container according to claim 1 or 2. The circumferential groove has a U-shaped, U-shaped or V-shaped cross section,
  The drop lid for the viscous fluid containing container according to claim 2. The drop lid according to any one of claims 1 to 4 is mounted in the container body.
  A viscous fluid containing container with a pump.

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