JP5108657B2 - Feeding container - Google Patents

Description

  The present invention relates to a feeding container capable of discharging an appropriate amount by appropriately pushing up the contents stored in the container, and in particular, due to a residual pressure (internal pressure) in the container when the contents are pushed out. It is intended to further simplify the structure while effectively avoiding unnecessary discharges by inducing back suction.

In the case of a container having a relatively high viscosity solid or cream-like content, a tube type container that crushes the body portion of the container and discharges the content has been used. In recent years, pay-out type containers such as lipsticks and lip balms have been applied so that the contents can be used up to the end. A container having a structure in which an intermediate dish is raised to push out an appropriate amount of the contents in the container by the intermediate dish has been proposed (see, for example, Patent Document 1).
Japanese Patent No. 4035403

  The above-mentioned conventional feeding container can reliably avoid unnecessary discharge of the contents due to the residual internal pressure, which has been a problem especially when filling with viscous contents, by inducing back suction. However, in order to achieve more efficient integration, further simplification of the container structure is desired, and there remains room for improvement in this regard.

  An object of the present invention is to propose a feeding container capable of further simplifying the structure without generating a residual internal pressure accompanied by excessive discharge of contents.

The present invention has a body portion having a content discharge port and an internal space surrounded by an annular side wall as a content filling space, and is rotatably held by the body portion, and the bottom portion of the body portion is A base to be formed, a screw rod provided on the base and standing in the internal space of the body portion, and a convex portion engaging with a screw portion of the screw rod, and by rotating the base together with the screw rod A feed comprising a slider that can be moved up and down, and an inner tray that is arranged at the upper end of the slider and that presses the contents stored in the filling space by moving toward the discharge port and discharges the contents from the discharge port A container,
The screw rod side surface of the screw rod connecting the crest and trough of the screw rod is arranged at intervals along the longitudinal direction, and the convex portion of the slider is dropped intermittently as the screw rod rotates. A feeding container having a plurality of recesses for inducing suction.

  In the feeding container having the above-described configuration, the concave portion is particularly preferably adapted such that the side wall connecting the bottom wall and the surface of the screw thread side surface forms an inclined surface or a curved surface.

  An inclined surface or a curved surface can be provided on both side walls of the concave portion connected to the surface of the screw thread side surface, but it is desirable that the convex portion be formed on the side wall on the side over the concave portion when the inner tray moves toward the discharge port. .

  The recesses are preferably provided at intervals for each quantitative discharge of the contents. In order to drop the convex portion of the slider into the concave portion of the screw portion every time a certain amount of content is poured out, it is possible to perform quantitative dispensing while inducing back suction by setting the interval between the concave portions.

  A plurality of recesses are provided on the screw thread side of the screw part of the screw rod, and when the contents are discharged by pushing up the inner tray, back suction is applied to reduce the residual internal pressure by dropping the projecting part of the slider into this recess. Since the induction is performed, a member or a mechanism for reducing the residual internal pressure is unnecessary, and the container structure can be simplified.

Hereinafter, the present invention will be described more specifically with reference to the drawings.
FIG. 1 is a view schematically showing an embodiment of a feeding container according to the present invention, and FIG. 2 is an exploded perspective view of a main part.

  Reference numeral 1 in the figure denotes the trunk portion of the feeding container. The body portion 1 has an inner space surrounded by an annular peripheral wall 1a as a filling space m for contents, a mouth portion 1b is provided at the upper end portion, and along the axial direction of the body portion 1 below the inner peripheral wall. An extending guide groove 1c (at least one, more preferably two are provided at opposing positions (opposing positions) around the inner peripheral wall) is provided. Reference numeral 2 denotes a nozzle cap that is detachably engaged with the mouth portion 1b by screw engagement (may be undercut engagement). The nozzle cap 2 has a discharge port 2a for discharging the contents on the top surface, and can be protected by a cover C. In the example shown in the figure, the cover C has a structure in which a protrusion is formed on the peripheral surface of the nozzle cap 2 and press-fitted. However, a cover type that is screwed or undercut fitted is used instead. May be.

  Reference numeral 3 denotes a base that is rotatably held at the lower portion of the body portion 1 by an engaging means such as an undercut. The base 3 includes a bottom wall 3a and a peripheral wall 3b integrally connected to an edge of the bottom wall 3a. The bottom wall 3a has a cylindrical body 3c opened upward and introduces outside air that penetrates inside and outside the container. A mouth 3d is provided.

4 is the screw rod shown in the example comprised by the cylinder. The screw rod 4 includes a rod main body 4a provided with a threaded portion n and a legged disk 4b integrally connected to the lower end of the rod main body 4a. The disc 4b is fitted into a cylinder 3c provided on the base 3, and the rod body 4a can be rotated together with the base 3. In the illustrated example, the rod body 4a, the cylinder 3c, Is fixed in a non-rotatable manner by a stopper or the like constituted by the rib r ₁ and the groove r ₂ . Ribs r ₁ and grooves r ₂ constituting the detent mechanism, one that either is formed in the rod body 4a or the cylindrical body 3c, it may be formed the other to the cylindrical body 3c or the rod body 4a, further groove r ₂ can also be formed over the entire circumference of the forming member. In this case, alignment at the time of assembling the rod main body 4a and the cylindrical body 3c becomes unnecessary, and the assembling work can be facilitated.

  Reference numeral 5 denotes a cylindrical slider. The slider 5 includes a cylindrical body 5a in which the rod body 4a can be housed, a flange 5b that is integrally connected to the lower end of the cylindrical body 5a, and a hanging wall 5c that is integrally connected to the outer edge of the flange 5b. ing. A convex portion 5d that engages with the threaded portion n of the rod body 4a is formed at the lower end of the inner wall of the cylindrical body 5a of the slider 5, and the hanging wall 5c is a guide for use provided on the inner peripheral wall of the body portion 1. A protrusion 5e that fits into the groove 1c is provided.

  Reference numeral 6 denotes an intermediate dish disposed at the upper end of the slider 5. A seal portion 6 a that slides up and down while maintaining a liquid-tight state along the inner peripheral wall of the body portion 1 is provided at the edge of the inner tray 6.

  Furthermore, 7 is a recess provided on the side surface of the screw thread (side surface located on the upper side) that connects the crest and trough of the thread portion n of the screw rod 4. The recess 7 includes a bottom wall 7a and side walls 7b and 7c. The length L and the depth h (see the enlarged view of FIG. 1) of the concave portion 7 are set to such dimensions that the convex portion 5d provided at the lower end of the inner wall of the cylindrical body 5a of the slider 5 is dropped to induce back suction. . Of the side walls 7b and 7c of the concave portion 7, the convex portion 5d extends from the bottom wall 7a to the thread side surface on the side wall 7c on the side where the convex portion 5d gets over the concave portion 7 when the inner tray 6 moves toward the discharge port. An inclined surface (or a curved surface) may be formed so that the transition can be made smoothly.

  When the base 3 is rotated in the direction shown in FIG. 3 (when the base 3 is rotated counterclockwise with the body portion 1 fixed), the slider 5 rises toward the nozzle cap 2. Concurrently, the inner tray 6 also rises along with the rise, whereby the contents in the filling space m are discharged from the discharge port 2a.

  The slider 5 is linearly raised (not rotated) toward the nozzle cap 2 because the protrusion 5e is fitted to the groove 1c of the body portion 1, but the protrusion 5d reaches the recess 7 as shown in FIG. At this time, the convex portion 5d falls by the depth h of the concave portion 7, and accordingly, the inner pan is pushed downward by the internal pressure generated in the filling space m, thereby releasing the internal pressure. Is induced, and the contents are not discharged from the discharge port 2a more than necessary.

  The feeding container according to the present invention can set the interval between the concave portions 7 so that the convex portions 5 fall into the concave portions 7 each time a certain amount of contents are discharged, thereby reducing the residual internal pressure. It is possible to perform a quantitative discharge without causing the discharge of the resulting contents.

  FIG. 1 shows an example in which a nozzle cap 2 having a single discharge port 2a is arranged as the discharge means for the contents. However, the discharge means has a plurality of discharge holes and discharges the contents on the outer surface. It is also possible to apply an application head that directly applies such contents, and the means for applying the contents can be changed as appropriate.

  It is possible to provide a delivery container with a simplified structure having a back suction function in which unnecessary contents are not discharged.

It is the figure which showed embodiment of the delivery container according to this invention. It is the external appearance perspective view which showed the decomposition | disassembly state of the feeding container shown in FIG. It is the figure which showed the extraction | pouring situation of the contents. It is the figure which showed the change condition of the positional relationship of the convex part provided in the slider, and the recessed part provided in the thread part of the screw rod.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Body part 1a Annular peripheral wall 1b Mouth part 1c Groove part 2 Nozzle cap 2a Discharge port 3 Base 3a Bottom wall 3b Circumferential wall 3c Cylindrical body 3d Outside air introduction port 4 Screw rod 4a Rod main body 4b Disc 5 Slider 5a Cylindrical body 5b Flange 5c Hanging wall 5d Convex part 5e Protrusion 6 Middle dish 6a Seal part 7 Concave part 7a Bottom wall 7b Side wall 7c Side wall m Filling space r ₁ rib r ₂ groove

Claims (4)

A body portion having a discharge port for contents and having an inner space surrounded by an annular side wall as a filling space for the contents; and a base which is rotatably held by the body portion and forms the bottom of the body portion; The screw rod provided on the base and standing up in the internal space of the body portion and the convex portion engaging with the screw portion of the screw rod can be moved up and down by rotating the base together with the screw rod. A feeding container provided with a slider and a middle tray that is disposed at the upper end of the slider and that presses the contents stored in the filling space by movement toward the discharge port and discharges the contents from the discharge port. ,
A plurality of recesses that are arranged on the side surface of the thread connecting the crest and trough of the threaded portion of the screw rod at intervals along the longitudinal direction and intermittently drop the projecting portion of the slider as the screw rod rotates. A feeding container characterized by providing.   The feeding container according to claim 1, wherein a side wall connecting the bottom wall and the surface of the thread side surface has an inclined surface or a curved surface.   The feeding container according to claim 2, wherein the inclined surface or the curved surface is formed on a side wall on a side where the convex portion gets over the concave portion when the inner tray moves toward the discharge port.   The feeding container according to any one of claims 1 to 3, wherein the recesses are provided at intervals for each quantitative discharge of the contents.

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