JP2845778B2 - Stick cosmetic container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotation control mechanism for an inexpensive spiral dispensing type rod-shaped cosmetic container with a minimum number of parts during a rotational dispensing operation.

[0002]

2. Description of the Related Art Conventionally, according to Japanese Utility Model Laid-Open Publication No. 51-70689 and Japanese Utility Model Laid-Open Publication No. 3-35077, a male screw is screwed on a side of a holding dish holding a stick-shaped cosmetic, and a cylinder in which the holding dish is provided. A female screw is screwed on the inner wall of the body to be screwed with the male screw of the holding plate. A rotatable tube is rotatably connected to the lower end of the cylindrical body. There has been proposed a configuration in which both ends of a transmission body such as a bellows capable of transmitting the rotation of the transmission to a storage plate are fixed. In the case of this type of configuration, the storage dish, the transmission, and the rotary cylinder can be integrally formed, and a spiral dispensing type stick-shaped cosmetic container can be provided with a minimum of two parts together with the cylindrical body. Therefore, a stick-shaped cosmetic container could be made extremely inexpensively.

[0003]

In the case of a general spiral feeding mechanism, the upper limit and the lower limit of the storage tray are determined by the contact of the male screw of the storage tray with the female screw end of the cylindrical body. . However, in the above-described configuration, if the rotating cylinder is further rotated at the upper limit and the lower limit of the storage tray,
Since the rotation is transmitted to the transmission transmitting the rotation in a state where the storage tray is prevented from sliding, there is a risk that the transmission is twisted and the transmission is damaged.

Further, since the transmission element expands and contracts with the sliding movement of the storage tray, the transmission body is formed of a synthetic resin, such as nylon or polypropylene, which is resistant to repeated bending. Since the body is in the most stretched state or the most contracted state, the transmitting body exerts a restoring force for restoring, and it is difficult to hold the storage tray at the position of the ascending or descending limit.

[0005]

SUMMARY OF THE INVENTION A storage dish 2 in which a stick-shaped cosmetic 1 is fitted and held, and a male screw 5 is screwed on a side wall, and the storage dish 2 is provided.
The sleeve 3 has a female screw 4 screwed to the male screw 5 on its inner wall, and is rotatably held at the lower end of the sleeve 3 so as not to fall off. Base tube 6
And both ends are fixed to the upper surface of the base cylinder 6 and the lower surface of the storage dish 2,
A rotation transmission piece 10 which is extendable and contractable and is capable of transmitting the rotation of the base cylinder 6 to the storage tray 2, wherein the free length of the rotation transmission piece 10 is stored at the top dead center. It is configured to be longer than the distance between the lower surface of the plate 2 and the upper surface of the base cylinder 6. On the side wall of the connecting portion 7 of the base cylinder 6 into which the sleeve 3 is fitted, a rotation control groove 11 is engraved in the same range as the rotation angle of the sleeve 3 from the top dead center to the bottom dead center of the storage tray 2, The control projection 12 is provided so as to protrude from the outer side of the sleeve 3 toward the inner side, and is engaged with the rotation control groove 11. One end of the rotation control groove 11 in the downward movement direction of the rotation control groove 11 is formed so as to have a groove depth deeper than other portions, and has a flange-like shape that can be deformed above the rotation control groove 11. Part 13
Is configured. On the lower surface of the flange-shaped portion 13, a sensitive projection 14 which the control projection 12 can climb over is provided. The present invention is a stick-shaped cosmetic dispensing container configured as described above.

[0006]

[Function] When the stick-shaped cosmetic 1 is stored in a container,
The control projection 12 of the sleeve 3 is engaged with the sensitive projection 14 of the rotation control groove 11 of the base cylinder 6, and the rod-shaped cosmetic 1 is dying down against the restoring force of the rotation transmission piece 10 trying to expand. Hold on to the point. Here, when the base cylinder 6 is rotated while holding the sleeve 3, a stress acts on the sensitive projection 14 of the rotation control groove 11 so that the control projection 12 of the sleeve 3 gets over. As a result, the flange 13 from which the sensitive protrusion 14 protrudes is deformed, the control protrusion 12 gets over the sensitive protrusion 14, and the base cylinder 6 can be rotated. When the base cylinder 6 rotates, the rotation transmitting piece 10 transmits the rotation of the base cylinder 6 to the storage tray 2, and the storage tray 2 also rotates following the rotation of the base cylinder 6. Since the male screw 5 of the storage tray 2 is screwed to the female screw 4 screwed on the inner wall of the sleeve 3 that does not rotate, it rises by the screwing action. As the storage tray 2 rises, the rotation transmitting piece 10 continues to transmit the rotation of the base cylinder 6 to the storage tray 2 while extending. The control projection 12 of the sleeve 3
Abuts on the other end of the rotation control groove 11 of the base cylinder 6, the rotation of the base cylinder 6 is prevented, and the upper end of the storage tray 2 is set. Even when the storage plate 2 is located at the top dead center, the free length of the rotation control piece in the unloaded state is determined by the distance between the bottom surface of the storage plate 2 at the top dead center position of the storage plate 2 and the top surface of the base cylinder 6. Since the length is longer than the length, the restoring force of the rotation transmission piece 10 acts in the direction in which the storage tray 2 is pushed up, so that the storage tray 2 does not inadvertently move down when the stick-shaped cosmetic 1 is used. .

In the case of the lowering operation, the base cylinder 6 is rotated to lower the rotation transmitting piece 10 against the restoring force. When the storage tray 2 approaches the bottom dead center, the control projection 12 of the sleeve 3 comes into contact with the sensitive projection 14 of the rotation control groove 11 of the base cylinder 6. If a further lowering operation is performed in this state, the flange-shaped portion 13 from which the sensitive protrusion 14 protrudes is deformed, and the control protrusion 12 becomes the sensitive protrusion 1
4, the control projection 12 engages with the sensitive projection 14,
It becomes the bottom dead center of the storage tray 2.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A storage dish 2 holding the lower end of a stick-shaped cosmetic 1 such as a lipstick or an eye shadow is rotatably mounted inside a sleeve 3 so as to be vertically slidable. On the inner wall of the sleeve 3, a fine groove is engraved in a knurled shape all around, and the groove spirally turns around the inner wall to form a multi-thread female screw 4. On the outer wall of the storage tray 2, a multi-threaded male screw 5 screwed with the multi-threaded female screw 4 of the sleeve 3 is screwed. 4
The storage dish 2 and the bar-shaped cosmetic 1 are moved up and down by a screwing action between the housing 2 and the multi-threaded male screw 5.

The lower part of the multi-thread female screw 4 is
Is not screwed, and the inner diameter is slightly larger than the root diameter of the multi-start female screw 4. The lower end of the sleeve 3 is
Is rotatably fitted to the connecting portion 7 provided on the upper part of the first member. An engagement groove 8 is formed in a side wall of the connecting portion 7 of the base cylinder 6, and an engagement rib 9 which engages with the engagement groove 8 is provided at a lower end of the sleeve 3 so as to project inward from outside. The sleeve 3 and the base cylinder 6 are rotatably connected so as not to fall off.

Both ends of a plate-shaped rotation transmitting piece 10 are fixed between the lower end of the storage tray 2 and the upper surface of the base cylinder 6. The rotation transmitting piece 10 is formed of a synthetic resin, such as nylon or polypropylene, which is resistant to repeated bending, and is alternately hinge-folded into mountain and valley folds. as a result,
By rotating the base cylinder 6 and the sleeve 3 relative to each other, the storage tray 2 connected to the base cylinder 6 with the rotation transmitting piece 10 also follows the base cylinder 6, and is screwed into the sleeve 3 and the multi-thread female screw 4 of the sleeve 3. Since the combined storage plates 2 are relatively rotated, the storage plates 2 are vertically slid by the screwing action. The length of the rotation transmitting piece 10 in the unloaded state, that is, the free length, is longer than the distance between the lower surface of the storage tray 2 and the upper surface of the base cylinder 6 when the storage tray 2 is at the top dead center. It is long configured. Therefore, at the position of the top dead center of the storage plate 2, the rotation transmitting piece 10 has a restoring force in the extending direction, so that the storage plate 2 does not drop due to the application pressure during use. .

Further, a rotation control groove 11 is formed in the upper side wall of the engagement groove 8 of the base cylinder 6. This rotation control groove 11
Is engraved in the same range as the rotation angle of the sleeve 3 from the top dead center to the bottom dead center of the storage tray 2. This rotation control groove 1
1 is engaged with a control projection 12 projecting inward from the outside of the sleeve 3 to limit the rotation angle of the sleeve 3 within a range from the top dead center to the bottom dead center of the storage tray 2. ing.
One end of the rotation control groove 11 in which the control projection 12 of the sleeve 3 is located at the bottom dead center of the storage tray 2 has a groove depth that is deeper than that of the other portion, so that the rotation control groove 11 is formed. A deformable flange 13 is formed above the groove 11. On the lower surface of the flange 13, there is provided a sensitive projection 14 which can be deformed by the flange 13 and the control projection 12 can get over. As a result, when the control projection 12 is located at the bottom dead center, the flange 13 deforms and the control projection 12 gets over the sensitive projection 14 and the control projection 1
2 can be engaged with the sensitive projection 14 to hold the storage tray 2 at the bottom dead center against the restoring force of the rotation transmitting piece 10.

Since the stick-shaped cosmetic container of the present invention is configured as described above, it can be used as a cartridge container of a cartridge type stick-shaped cosmetic container in which the stick-shaped cosmetic material 1 can be replaced with only the above-described structure. Further, it is also possible to fix the base cylinder 6 in an outer cylinder 17 provided with a fitting portion 16 on which the lid 15 is removably fitted so as to form a stick-shaped cosmetic container. The storage plate 2, the rotation transmitting piece 10, and the base cylinder 6 can be integrally formed. In this case, the stick-shaped
Can be composed of parts.

[0013]

As described above, according to the present invention, the storage tray 2 holding the stick-shaped cosmetic material 1 and the base cylinder 6 rotatably connected to the sleeve 3 can be extended and contracted and can transmit the rotation. Since the feed-out mechanism is configured by being connected by the motion transmitting pieces 10, the bar-shaped cosmetic container can be composed of at least two parts, and the bar-shaped cosmetic container can be provided at extremely low cost. In addition, since the top dead center and the bottom dead center of the stick-shaped cosmetic 1 are controlled by the rotation control groove 11 with which the control projection 12 of the sleeve 3 is engaged, the top dead center and the bottom dead center are forcibly forced at the position of the top dead center or the bottom dead center. Even if the rotation operation is continued, there is no possibility that excessive force is applied to the rotation transmission piece 10 to damage the rotation transmission piece 10.

The free length of the rotation transmitting piece 10 in a no-load state is determined by the lower surface of the storage plate 2 at the position of the upper dead center of the storage plate 2 and
Since it is configured to be longer than the distance from the upper surface, the restoring force of the rotation transmitting piece 10 that is about to be fed out acts on the storage tray 2 when the bar-shaped cosmetic 1 is fed, and the stick-shaped makeup is applied by the application pressure when the bar-shaped cosmetic 1 is applied. This prevents the fee 1 from inadvertently falling down. Similarly, the depth of the rotation control groove 11 is increased to form a deformable flange 13, and the control projection 12 of the sleeve 3 is formed on the flange 13 when the storage tray 2 is at the bottom dead center. Since the engagement projection 14 is provided, the storage dish 2 can be held against the restoring force of the rotation transmitting piece 10 which is about to extend when the storage dish 2 is at the bottom dead center, and the stick-shaped cosmetic 1 is inadvertent. To prevent it from moving up. In addition, since the resistance when the control protrusion 12 gets over the sensitive protrusion 14 is transmitted to the hand, it signals the engagement and disengagement of the bottom dead center of the storage plate 2, which also prevents an excessive rotation operation.

As described in the embodiment of the present invention, when the multi-thread female screw 4 in which a shallow and narrow spiral thread is screwed innumerably on the inner wall of the sleeve 3 in a knurled manner is used, Since the screw 5 is screwed with the plurality of female screws 4, the male screw 5 and the female screw 4 can be caught less, and the thick bar-shaped cosmetic 1 can be stored as compared with a conventional single or double spiral groove. . Further, since the female screw 4 is screwed around the entire inner wall of the sleeve 3, it is possible to assemble the female screw 4 without any need for positioning when screwing the male screw 5 of the storage plate 2, thereby reducing the assembly cost and assembling. Can be automated.

[Brief description of the drawings]

FIG. 1 is a front sectional view of a stick-shaped cosmetic container according to an embodiment of the present invention.

FIG. 2 is a front sectional view of the embodiment of the present invention at the time of application of a stick cosmetic.

FIG. 3 is a front sectional view of a stick-shaped cosmetic container according to another embodiment of the present invention.

FIG. 4 is a perspective view of a base cylinder at a bottom dead center of a storage tray.

FIG. 5 is a perspective view of a base cylinder at a top dead center of a storage tray.

[Description of sign]

 DESCRIPTION OF SYMBOLS 1 Rod-shaped cosmetic material 2 Storage dish 3 Sleeve 4 Female screw 5 Male screw 6 Base cylinder 7 Connection part 10 Rotation transmission piece 11 Rotation control groove 12 Control projection 13 Flange part 14 Sensitive projection

Continuing from the front page Examiner Yoshihiro Shibuya (56) References JP-A 3-35077 (JP, U) JP-A 51-70689 (JP, U) JP-A 3-3916 (JP, U) JP-A 63 -76212 (JP, U) Shokai 57-181205 (JP, U) Shokai 2-25924 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) A45D 40/04 A45D 40/12

Claims (1)

(57) [Claims] 1. A storage dish 2 in which a stick-shaped cosmetic 1 is fitted and held, and a male screw 5 is screwed on a side wall, and the storage dish 2 is slidably mounted in a vertically slidable manner on an inner wall. A sleeve 3 on which a female screw 4 screwed with a screw 5 is screwed; a base cylinder 6 rotatably held at the lower end of the sleeve 3 so as not to fall off; and an upper surface of the base cylinder 6 and a lower surface of the storage plate 2 A rotation transmission piece 10 that is fixed at both ends, is extendable and contractable, and can transmit the rotation of the base cylinder 6 to the storage tray 2. , The distance between the lower surface of the storage tray 2 at the top dead center and the upper surface of the base cylinder 6 is longer than that of the sleeve 3.
A rotation control groove 11 is engraved on the side wall of the connecting portion 7 of the base cylinder 6 in which the rotation angle of the sleeve 3 from the top dead center to the bottom dead center of the storage tray 2 is the same. A control projection 12 is provided to project from the outside toward the inside to form a rotation control groove 11.
And one end of the rotation control groove 11 in the downward movement direction of the rotation control groove 11 is engraved deeper than the other portion, and is formed above the rotation control groove 11. A stick-shaped cosmetic dispensing container characterized in that a deformable flange 13 is formed, and a sensitive protrusion 14 protruding from the lower surface of the flange 13 so that the control protrusion 12 can get over the protrusion.