JP5240835B2 - Feeding container - Google Patents

Description

  The present invention relates to a feeding container that accommodates a rod-shaped solid material as a content so as to be able to be fed and fed.

Conventionally known as a container for stick-shaped cosmetics (lipsticks, etc.), a container called a pay-out container that allows the stick-shaped cosmetics to be fed and unloaded by relatively rotating the exterior part of the container and the holding part of the stick-shaped cosmetics. It has been. Regarding such a feeding container, the following patent document states that “a main body made of a cylindrical body and provided with a sliding hole along the longitudinal direction in the lower part, and a main body made of a cylindrical body and slidingly fitting the main body on the inner side. A rotatable outer cylindrical body having a spiral groove on the surface, and a protrusion made of a cylindrical body and slidably engaged with the spiral groove via the sliding hole at the lower end portion and containing a rod-shaped cosmetic -In a stick-shaped cosmetic container comprising an inner dish body to be held, an upper end of an outer cylindrical body having a thick peripheral wall provided with a fitting portion projecting annularly on the outer peripheral surface of the main body. A structure is disclosed in which it is integrally welded to the lower end of the middle tool and the fitting portion is slidably held by the welded portion.
Registered Utility Model No. 3006522

  By the way, in the conventional feeding container described in the above-mentioned patent document, the upper part of the outer peripheral surface of the main body is slidably contacted by a rib projecting from the inner peripheral surface of the middle tool by the main body. However, in order to ensure the sufficient sealing performance of such a container, it is necessary to strongly abut the rib formed on the inner tool against the main body. is there.

  On the other hand, when attaching the cap, the cap is fitted by the protrusion formed on the outer peripheral surface of the inner tool by pushing down the cap, but when the cap is fitted via the inner tool as such In addition, if the rib formed on the inner tool is in strong contact with the main body as described above, a repulsive force that expands the outer diameter of the inner tool from the main body to the inner tool acts, so the cap is fitted There is a problem that it becomes difficult to do.

  An object of the present invention is to solve the above-described problems. Specifically, with respect to a feeding container, the container can be sufficiently sealed and the cap can be easily attached. That is the issue.

In order to solve the above-described problems, the present invention has a pin projecting on the outer peripheral surface of a cylindrical receiving cylinder that holds a rod-shaped content, and the pin of the receiving cylinder passes through the outer side of the receiving cylinder. A guide tube having a guide hole formed at the bottom is provided, a screw tube having a screw groove formed on the inner peripheral surface for receiving a pin of the receiving tube is provided outside the lower portion of the guide tube, and an exterior body is provided outside the screw tube. In the feeding container in which the cap is engaged with the sealing cylinder part of the container main body, with respect to the container main body provided with the sealing cylinder at the upper end of the exterior body,
A screw portion that is screwed to the screw portion formed on the inner peripheral surface of the cap is formed on the outer peripheral surface of the sealing cylinder, and the inner peripheral surface of the sealing cylinder is in close contact with the outer peripheral surface of the guide cylinder. sealing ring be formed of, that air gap is formed in a portion of the sealing tube located in the container radially outward of the sealing ring, the portion of the sealing ring becomes elastically deformable container radially In addition, on the outer peripheral surface of the guide tube, the portion above the portion in close contact with the sealing ring is a small outer diameter portion having a smaller outer diameter than the portion in close contact with the sealing ring. It is.

According to the feeding container of the present invention as described above, the cap is attached by screwing to the outer peripheral surface of the sealing cylinder, and the sealing ring formed on the inner peripheral surface of the sealing cylinder However, since it can be elastically deformed in the radial direction of the container by the outer space, when the cap is attached, the cap can be gradually tightened by the rotational force in the circumferential direction of the container, and The repulsive force from the guide cylinder that works to expand the outer diameter of the sealing cylinder at the sealing ring portion can be absorbed by the elastic deformation of the sealing ring, and the cap can be easily attached. Since the sealing ring is elastically deformed and is in close contact with the guide cylinder, the sealing ring is securely in close contact with the guide cylinder by the elastic restoring force, so that the container is sufficiently sealed by the close contact between the sealing ring and the guide cylinder. Can
In addition, since the portion above the portion in close contact with the sealing ring on the outer peripheral surface of the guide cylinder is a small outer diameter portion smaller than the portion in close contact with the sealing ring, each part of the feeding container When assembling, the resistance due to the contact between the outer peripheral surface of the guide cylinder and the sealing ring of the sealing cylinder can be reduced, and the container can be easily assembled.

A pin is provided on the outer peripheral surface of a cylindrical receiving cylinder that holds the rod-shaped contents, and a guide cylinder is formed on the outer side of the receiving cylinder. A screw cylinder in which a screw groove for receiving the pin of the receiving cylinder is formed on the inner peripheral surface is provided on the outer side of the lower part, an exterior body is provided on the outer side of the screw cylinder, and a sealing cylinder is provided on the upper end portion of the exterior body The object is to ensure sufficient sealing of the container for the feeding container in which the cap is engaged with the sealed cylinder part of the container body with respect to the container body, and to allow the cap to be easily attached. As shown in the following embodiment as the best mode, a screw portion that is screwed with the screw portion is formed on the outer peripheral surface of the sealing cylinder with respect to the screw portion formed on the inner peripheral surface of the cap. A sealing ring is formed on the inner peripheral surface of the sealing cylinder so as to be in close contact with the outer peripheral surface of the guide cylinder. And, by forming the gap portion in the portion of the sealing tube located in the container radially outward of the sealing ring, the portion of the sealing ring as well as to be elastically deformable in the vessel radially in the outer peripheral surface of the guide tube This is realized by setting the portion above the portion in close contact with the sealing ring as a small outer diameter portion having a smaller outer diameter than the portion in close contact with the sealing ring .

  The feeding container of the present embodiment is a stick-shaped solid material such as a stick-shaped cosmetic product (lipstick, etc.), and as shown in FIG. (Not shown) a cylindrical receiving tube 3, a guide tube 4 provided outside the receiving tube 3, a screw tube 5 provided outside the lower portion of the guide tube 4, and an outside of the screw tube 5 A cap 8 is attached to the container body 2 composed of the exterior body 6 provided in the container and the sealing cylinder 7 provided at the upper end of the exterior body 6 by screwing with the sealing cylinder 7 of the container body 2. Is. The cap 8 is integrally provided with a separate seal member 9 on the inner surface (lower surface) of the top plate portion.

  The feeding container of the present embodiment comprising the above-described parts is formed of a synthetic resin material, and the outer shell 6 and the cap 8 which are the outer shell portions of the container are made of a relatively hard polypropylene resin. The formed sealing cylinder 7 is also made of the same polypropylene resin as that of the exterior body 6 so as to be easily welded to the exterior body 6. On the other hand, the seal member 9 attached to the cap 8 is made of low-density polyethylene which is softer than polypropylene resin, and the receiving tube 3, the guide tube 4 and the screw tube 5 are excellent in strength and sliding characteristics. Polyacetal resin or the like.

  The structure of each part of the feeding container will be described. The receiving cylinder 3 of the container body 2 is formed with a disk-shaped pedestal 31 for holding a rod-shaped content in the cylinder. As shown in FIG. 3, the filling port 32 for filling the contents is opened at the center of the base 31, and the claw portions 33 for locking the contents protrude outward and upward, respectively. Degassing openings 34 having a smaller area than the filling port 32 are formed at four positions at equal intervals on the peripheral edge, and four openings are formed at equal intervals on the outer periphery of the base 31.

  In addition, ribs 35 for locking contents in the circumferential direction are formed at four locations on the inner peripheral surface of the receiving cylinder 3 above the pedestal 31 at equal intervals on the inner periphery of the receiving cylinder 3. As shown in FIG. 1, the pins 36 projecting outward from the outer peripheral surface of the guide tube 4 are projected in two positions at symmetrical positions. 5 of the screw groove 51. As shown in FIG. 6, a seal protrusion 37 that is in close contact with the inner peripheral surface of the guide tube 4 is formed in an annular shape on the outer peripheral surface of the upper end portion of the receiving tube 3.

  As shown in FIG. 4, the guide tube 4 provided outside the receiving tube 3 includes an intermediate tube portion 42 in which a circumferential protrusion 44 is formed, an upper tube portion 41 extending above the intermediate tube portion 42, and an intermediate tube portion 42. The upper cylindrical portion 41 and the intermediate cylindrical portion 42 have substantially the same inner diameter, but the inner diameter of the lower cylindrical portion 43 is larger than those, while the lower cylindrical portion 43 extends downward from the cylindrical portion 42. The outer cylindrical portion 42 and the lower cylindrical portion 43 have substantially the same outer diameter, but the upper cylindrical portion 41 has a smaller outer diameter than that, and the thickness of the intermediate cylindrical portion 42 is It is thicker than the thickness of the upper cylinder part 41 and the lower cylinder part 43.

  A circumferential protrusion 44 is formed on the guide cylinder 4 so as to protrude outward from the outer peripheral surface of the intermediate cylindrical portion 42, and a convex portion 44 a for a stopper is formed on the outer peripheral surface of the peripheral protrusion 44. As shown in FIG. 6 and FIG. 7, the protrusion 44a is formed inward at the portion of the circumferential protrusion 44 located inward of the protrusion 44a. A gap 44b is formed to be elastically displaceable. Further, the guide tube 4 has a lower tube portion in which a guide hole 45 for allowing the pin 36 of the receiving tube 3 to pass through is continuous from the lower end of the guide tube 4 to the vicinity of the lower portion of the circumferential protrusion 44. 43 is formed at two positions symmetrically.

  As shown in FIG. 5, the screw cylinder 5 provided on the outer side of the lower portion of the guide cylinder 4 is formed with two thread grooves 51 for receiving the two pins 36 of the receiving cylinder 3 on its inner peripheral surface. In addition, although not shown in the drawing on the outer peripheral surface thereof, the outer peripheral body 6 is engaged with the locking protrusion on the inner peripheral surface so as to be immovable in the circumferential direction. A number of knurled grooves extending in the vertical direction (the container axis direction) are formed.

  As shown in FIG. 1, the exterior body 6 provided on the outer side of the screw tube 5 includes a body portion 61 positioned on the outer peripheral side of the screw tube 5 and a bottom portion 62 that supports the receiving tube 3, the guide tube 4, and the screw tube 5. On the inner peripheral surface of the body portion 61 of the exterior body 6, although not shown in the drawing, locking protrusions that engage with the knurled grooves on the outer peripheral surface of the screw cylinder 5 are formed at six locations. An opening 63 for filling the contents is opened at the center of the bottom 62 of the exterior body 6. The opening 63 is sealed with a sheet lid mainly composed of an aluminum foil after filling the contents.

  The sealing cylinder 7 provided at the upper end of the exterior body 6 is welded to the upper end of the body 61 of the exterior body 6 by ultrasonic waves or the like. As shown in FIG. The upper cylinder 71 is connected in a state of being displaced upward and inward from the upper end of the lower cylinder 72, and is projected on the upper end of the exterior body 6 so as to protrude outward from the outer peripheral surface of the lower cylinder 72. An annular convex portion 73 to be welded is formed, a screw portion (male screw) 74 is formed on the outer peripheral surface of the upper cylindrical portion 71, and an upper peripheral surface of the lower cylindrical portion 72 is above the annular convex portion 73. An annular groove 75 is formed. The annular groove 75 locks a protrusion 84 formed below the threaded portion 83 of the cap 8 in order to prevent the cap 8 from loosening when the container is not used.

  Further, the sealing cylinder 7 is integrally provided with a sealing ring 76 having an inner peripheral surface protruding inward from the inner peripheral surface of the upper cylinder portion 71 so as to extend downward from the inner peripheral surface side of the upper cylinder portion 71. Is formed. The outer peripheral surface of the sealing ring 76 is separated from the inner peripheral surface of the lower cylinder portion 72, and is between the sealing ring 76 and the lower cylinder portion 72 (the portion of the sealing cylinder 7 located outside the sealing ring 76). A gap portion 77 is formed in the seal ring 76 so that the seal ring 76 can be easily elastically deformed outward in the radial direction of the container.

  The inner peripheral surface of the sealing ring 76 is formed so as to be in close contact with the substantially vertical cylindrical outer peripheral surface of the intermediate cylinder portion 42 of the guide cylinder 4 above the peripheral protrusion 44 of the guide cylinder 4. The intimate part of the guide cylinder 4 and the sealing ring 76 is located in the vicinity of the back side of the annular groove 75 of the sealing cylinder 7 through a gap 77 between the sealing ring 76 and the lower cylinder part 72. This close portion is located in a range where the sealing cylinder 7 and the cap 8 overlap each other when viewed in the container axial direction (vertical direction).

  In addition, on the inner peripheral surface of the lower cylinder portion 72 of the sealing cylinder 7, at least in a portion facing the circumferential protrusion 44 of the guide cylinder 4, as shown in FIG. A large number of small intervals are formed, and a stopper convex portion 44a formed on the outer peripheral surface of the peripheral protrusion 44 of the guide tube 4 engages with any of the many concave portions 78 of the sealing tube. Thus, when the guide cylinder 44 is rotated relative to the sealing cylinder 7 (and the exterior body 6), the protrusion 44a of the guide cylinder 4 gets over the recess 78 of the sealing cylinder 7 with a predetermined resistance. It is like that.

  In other words, the engagement structure between the convex portion 44a of the circumferential protrusion 44 of the guide tube 4 and the recess 78 of the lower tube portion 72 of the sealing tube 7 provides the guide tube 4 and the exterior body 6 by applying a predetermined rotational torque. It becomes a stopper mechanism when relatively rotating the. Since the sealing ring 76 of the sealing cylinder 7 is positioned above the circumferential protrusion 44 of the guide cylinder 4, even if the guide cylinder 4 is moved upward, the upper surface of the circumferential protrusion 44 and the sealing ring 76. It is possible to prevent the guide tube 4 from coming off by contacting the lower end.

  In the cap 8 engaged with the sealing cylinder 7 of the container body 2, as shown in FIG. 1, a skirt portion 82 is suspended from the peripheral edge portion of the disk-shaped top plate portion 81. A protrusion 85 for positioning the seal member 9 is formed on the outer peripheral portion of the inner surface (lower surface) at a position slightly away from the inner peripheral surface of the skirt portion 82. Further, as shown in FIG. 6, a screw portion (female screw) 83 that is screwed with the screw portion (male screw) 74 of the sealing cylinder 7 is formed on the inner peripheral surface of the lower portion of the skirt portion 82. Below 83, the latching protrusion 84 latched by the annular groove 75 of the sealing cylinder 7 is formed in four places at equal intervals in the circumferential direction.

  In the sealing member 9 attached to the cap 8, a cylindrical peripheral wall upper part 92 extends downward from the peripheral part of the disk part 91, and a tapered peripheral wall lower part 93 extends downward and outward from the lower end of the peripheral wall upper part 92. An annular ridge that is in close contact with the outer peripheral surface near the upper end of the guide tube 4 is formed on the inner peripheral surface of the lower end portion of the cylindrical peripheral wall upper portion 92, and the lower end of the tapered peripheral wall lower portion 93 is It is in contact with the inner peripheral surface of the skirt portion 82. In addition, a plurality of semicircular ribs are formed concentrically on the outer surface (upper surface) of the disc portion 91 of the seal member 9 in plan view.

  The cap 8 and the seal member 9 are fixed by a hot melt adhesive or the like, and the hot melt adhesive is applied to the vicinity of the center portion of the inner surface (lower surface) of the top plate 81 of the cap 8, and the inner peripheral edge of the positioning projection 85 By pressing the disc portion 91 of the seal member 9 against the top plate portion 81 of the cap 8 so that the outer peripheral edge of the disc portion 91 of the seal member 9 is fitted to the top of the disc portion 91, the hot melt adhesive is half of the disc portion 91. The cap 8 and the seal member 9 are firmly bonded by flowing through the gaps of the circular ribs.

  The usage state of the feeding container composed of the above parts will be described. When using the contents, first, the cap 8 is rotated in the opening direction with respect to the container body 2, and the container body 2 and the cap 8 are then rotated. 2, after the cap is removed as shown in FIG. 2, the exterior body 6 is then rotated in the circumferential direction with respect to the guide cylinder 4, and the exterior body 6 and (knurls) are removed. The screw cylinder 5 fixed in the circumferential direction (by engagement with the groove) is rotated, and the pin 36 of the receiving cylinder 3 penetrating the guide hole 45 of the guide cylinder 4 is rotated into the screw groove 51 of the rotating screw cylinder 5. Is lifted up along the guide hole 45 of the guide cylinder 4 to raise the receiving cylinder 3 to raise the contents held on the pedestal 31 of the receiving cylinder 3, and the contents from the upper end of the guide cylinder 4 And the contents are ready for use To so that.

  In addition, after the contents are used, a procedure reverse to the above procedure is performed. That is, first, the exterior body 6 is rotated in the opposite direction with respect to the guide cylinder 4, and the protruding contents are guided to the guide cylinder 4. Then, the cap 8 is put on the container body 2, the cap 8 is rotated in the closing direction, the container body 2 and the cap 8 are screwed together, and the cap 8 is attached to the container body 2. As a result, the contents are brought into a state before being used.

  According to the feeding container of the present embodiment as described above, the cap 8 is engaged with the outer peripheral surface of the sealing cylinder 7 by screwing, and on the inner peripheral surface of the sealing cylinder 7. Since the formed sealing ring 76 is easily elastically deformed outward by the outer space 77 (outward in the container radial direction), when the cap 8 is attached, the seal ring 76 is moved in the container circumferential direction. The cap 8 can be gradually tightened by the rotational force of the sealing ring 76, and the repulsive force from the guide cylinder 4 that works to expand the outer diameter of the sealing cylinder 7 at the portion of the sealing ring 76 is caused by the elastic deformation of the sealing ring 76. The cap 8 can be easily attached, and the sealing ring 76 is elastically deformed and is brought into close contact with the guide cylinder 4 so that the sealing ring 76 is securely attached to the guide cylinder 4 by the elastic restoring force. Sealing ring 76 and It is possible to sufficiently ensure the sealing performance of a container according closely with id tube 4.

  In particular, in this embodiment, the exterior body 6 and the cap 8 are formed from a relatively hard polypropylene resin, and the sealing cylinder 7 is also formed from the same polypropylene resin as the exterior body 6 so as to be easily welded to the exterior body 6. Therefore, the sealing ring 76 of the sealing cylinder 7 itself has a small elasticity, but the sealing ring 76 is easily elastically deformed outward by the gap portion 77. Therefore, the cap 8 can be easily attached.

  Further, in this embodiment, as viewed in the container axial direction, a close range between the sealing ring 76 of the sealing cylinder 7 and the guide cylinder 4 is a range where the sealing cylinder 7 and the cap 8 overlap when the cap 8 is attached. However, the sealing ring 76 can be sufficiently tightened by the cap 8, and the sealing performance by the guide tube 4 and the sealing tube 7 can be further improved.

  In this embodiment, the inner peripheral surface of the sealing ring 76 protrudes inward from the other inner peripheral surface of the sealing cylinder 7 when viewed in the container radial direction, and the sealing ring 76 is elastically outward. By deforming, the inner peripheral surface of the sealing ring 76 is brought into close contact with the substantially vertical cylindrical outer peripheral surface of the guide tube 4, and thereby, for example, an annular shape protruding outward from the outer peripheral surface of the guide tube Compared to the case where the sealing ring is brought into close contact with the convex portion, a uniform sealing surface can be easily formed on the entire circumference, and stable sealing performance can be ensured.

  Further, in the present embodiment, the portion (upper cylinder portion 41) above the portion in close contact with the sealing ring 76 on the outer peripheral surface of the guide cylinder 4 is more than the portion in contact with the sealing ring 76 (intermediate cylinder portion 42). Although it has a small outer diameter portion with a small outer diameter, when the parts of the feeding container are assembled, the interior of the exterior body 6 with the receiving cylinder 3, the guide cylinder 4 and the screw cylinder 5 assembled in advance. When the sealing cylinder 7 is inserted into the upper end of the exterior body 6 from above while being inserted into the outer periphery of the guide cylinder 4, the outer peripheral surface of the guide cylinder 4 through which the sealing cylinder 7 passes is made a small outer diameter portion. Resistance due to contact between the outer peripheral surface and the sealing ring 76 of the sealing cylinder 7 can be reduced, and the assembly of the feeding container can be facilitated.

  As mentioned above, although one Example of the delivery container of this invention was described, this invention is not limited only to the specific structure as shown in said Example, For example, the pin ( The number of guide holes provided in the guide cylinder, the number of claw portions for locking contents, the opening for venting gas, and the number of ribs for locking contents are appropriately changed. Needless to say, the design can be appropriately changed.

The longitudinal cross-sectional view which shows the whole structure of a container about one Example of the delivery container of this invention. The side view which shows the state which removed the cap with the feeding container shown in FIG. The top view which shows the part of the receiving cylinder of the feeding container shown in FIG. The longitudinal cross-sectional view which shows the part of the guide cylinder of the feeding container shown in FIG. The longitudinal cross-sectional view which shows the part of the screw cylinder of the feeding container shown in FIG. The longitudinal cross-sectional view which expands and shows the part of the stopper mechanism of the feeding container shown in FIG. The cross-sectional view along the AA line of the part of the stopper mechanism shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Feeding container 2 Container main body 3 Receptacle cylinder 4 Guide cylinder 5 Screw cylinder 6 Exterior body 7 Sealing cylinder 8 Cap 36 Pin 45 Guide hole 51 Screw groove 74 (Seal cylinder) Screw part 76 (Seal cylinder) Seal ring 77 Gaps (of the sealing cylinder) 83 Screws (of the cap)

Claims (3)

A pin is provided on the outer peripheral surface of a cylindrical receiving cylinder that holds the rod-shaped contents, and a guide cylinder is formed on the outer side of the receiving cylinder. A screw cylinder in which a screw groove for receiving the pin of the receiving cylinder is formed on the inner peripheral surface is provided on the outer side of the lower part, an exterior body is provided on the outer side of the screw cylinder, and a sealing cylinder is provided on the upper end of the exterior body In the feeding container in which the cap is engaged with the sealing cylinder part of the container body with respect to the container body,
A screw portion that is screwed to the screw portion formed on the inner peripheral surface of the cap is formed on the outer peripheral surface of the sealing cylinder, and the inner peripheral surface of the sealing cylinder is in close contact with the outer peripheral surface of the guide cylinder. sealing ring be formed of, that air gap is formed in a portion of the sealing tube located in the container radially outward of the sealing ring, the portion of the sealing ring becomes elastically deformable container radially In addition, on the outer peripheral surface of the guide cylinder, the portion above the portion in close contact with the sealing ring is a small outer diameter portion having a smaller outer diameter than the portion in close contact with the sealing ring. container.   2. The close position between the sealing ring of the sealing cylinder and the guide cylinder as viewed in the container axial direction is located in a range where the sealing cylinder and the cap overlap when the cap is attached. The feeding container described in 1.   When viewed in the radial direction of the container, the inner peripheral surface of the sealing ring protrudes inward from the other inner peripheral surface of the sealing cylinder, and the guide ring is elastically deformed outward, so that the guide cylinder is substantially vertical. The feeding container according to claim 1 or 2, wherein the inner peripheral surface of the sealing ring is in close contact with a cylindrical outer peripheral surface.

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