JPH0317784Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a cosmetic container, particularly its feeding mechanism, which simplifies the component parts and facilitates assembly. The present invention relates to a cosmetic container that can be reliably prevented from separating from the container.

[Conventional technology]

As a prior art related to a cosmetic container equipped with a mechanism for preventing the screw rod from falling off, there is a known technique such as that described in Japanese Utility Model Application Publication No. 111621/1983.

The cosmetic container described in the above publication includes a cosmetic holding part for holding a cosmetic and a threaded rod having a threaded part;
an inner cylinder into which the cosmetic holding part is slidably inserted;
A joint tube fixed to the middle tube and having the threaded portion inserted therethrough in a non-rotatable manner, and a threaded tube screwed with the threaded portion and rotatably inserted into the joint tube,
By rotating the inner tube and the threaded tube with respect to each other, the cosmetic holding portion slides along the inner tube, and the cosmetic material is caused to appear and disappear from the inner tube. , cutting out the threads of the threaded part of the threaded rod from both sides while leaving them completely at the tip of the threaded rod, and forming an oblique plane in the part of the threaded part excluding the tip; By providing the coupling tube with an engagement hole that engages with the flat surface and a notch that is continuous with the engagement hole, the threaded rod can be inserted into the coupling tube, and the threaded rod can be inserted from the coupling tube. I'm trying not to leave.

[Problem that the invention attempts to solve]

However, in the above-mentioned prior art, since the stopper part is formed on the threaded rod by leaving the thread at the tip of the threaded rod, the stopper part is inserted into the engagement hole of the joint tube. When doing so, it is necessary to expand the engagement hole, and as a result, it is necessary to provide the above-mentioned notch in the joint cylinder, and the joint cylinder has no choice but to have a complicated shape.

[Means for solving problems]

The present invention comprises a screw rod having a cosmetic holding part for holding cosmetics and a threaded part, a middle cylinder into which the cosmetic holding part is slidably inserted, and a threaded rod fixed to the middle cylinder and having the threaded part. A joint tube into which a threaded portion is inserted non-rotatably, a threaded tube which is screwed into the threaded portion and rotatably inserted into the joint tube, and a cap which is inserted into the middle tube, A cosmetic wherein the cosmetic holding portion slides along the middle tube by rotating the middle tube and the threaded tube with respect to each other, so that the cosmetic comes out and disappears from the middle tube. In the container, a cylindrical packing is inserted into the cap, and the packing has a loop-shaped rib having a vertical rib on its inner wall so that its tip can be brought into close contact with the outer peripheral side wall of the middle cylinder. The joint tube has at least one substantially straight side and is provided with an engagement hole through which the threaded portion is inserted, and the threaded portion is configured to protrude from the threaded portion. at least one side thereof is provided with a flattened surface that engages with the above-mentioned substantially straight side, and the tip of the flattened surface is provided with a protrusion having a diameter equal to or less than the thread diameter of the thread, and the protrusion is connected to the decorative part. By providing a cosmetic container characterized in that it can be inserted into the engaging hole from the cosmetic holding part side, but cannot be removed from the engaging hole from the opposite side. This solves the above problems.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Examples of the cosmetic container of the present invention shown in the drawings will be described below.

1 to 4 show a preferred embodiment of the cosmetic container of the present invention, in which FIG. 1 is a longitudinal cross-sectional view thereof, and FIG. 2 is a cross-sectional view thereof taken along line A-A in FIG. 1. , Fig. 3 is an exploded perspective view thereof, and Fig. 4 is an enlarged partial cross-sectional perspective view of the packing into which the cap is inserted and fitted. , 2 is a threaded tube that is inserted into and fixed in the outer tube 1, 3 is a joint tube that is rotatably inserted into the outer tube 1 and rotatably inserted into the upper part of the screw tube 2, and 4 is the lower part of the joint tube that is outside the screw tube. The middle cylinder 5 is rotatably inserted into the cylinder 1 and fixed to the joint cylinder 3, and the lower part of the middle cylinder 5 is inserted through the joint cylinder 3 through the threaded part 51 and screwed into the threaded cylinder 2, and the upper part is the cosmetic holding part 52. 6 is a screw rod that is slidably inserted into the middle cylinder 4; 6 is a relay ring that is inserted and fixed in the upper part of the outer cylinder 1 and through which the middle cylinder 4 is rotatably inserted; 7 is attachable to and detachable from the relay ring 6; A cap into which the inner cylinder 4 is inserted by being inserted as far as possible; 8 is a packing which is inserted and fitted into the cap 7; 9 is a volatile material whose lower end is inserted into the cosmetic holding part 52 of the screw rod 5 and held therein; cosmetics.

The structure and connection mode of each of the above-mentioned parts will be described in detail. First, the outer cylinder 1 has a simple cylindrical shape.

The threaded tube 2 generally has a large diameter portion at the bottom and a small diameter portion at the top, and has a threaded hole 21 opening upwardly in the inside thereof, and a knurled portion 22 and a knurled portion 22 on the outer circumferential surface of the large diameter portion. The adhesive part 23 is further provided with an annular groove 2 at the lower end of the small diameter part, that is, at the middle part of the threaded tube 2.
4. Therefore, screw tube 2
is inserted into the outer cylinder 1 from below and fixed to the outer cylinder 1 via the knurled part 22 and the adhesive part 23.

Further, the above-mentioned joint tube 3 has a lower part as a large diameter part and an upper part as a small diameter part, and the upper end of the small diameter part is closed, and the closed part has a rectangular engagement hole smaller than the inner diameter of the small diameter part. 31 is formed. This engagement hole 31 is connected to the threaded portion 5 of the threaded rod 5 as described later.
1 is inserted through it in a non-rotatable manner. In addition, the small diameter portion of the joint tube 3 is provided with an annular groove 32 on its lower outer periphery and a protrusion 33 on its lower end outer periphery. Further, an annular protrusion 34 is provided on the inner peripheral surface of the large diameter portion of the joint tube 3, and a plurality of notches 35 are provided in the large diameter portion of the joint tube 3 from below. The joint tube 3 is rotatably inserted into the outer tube 1 and rotatably inserted onto the upper part of the threaded tube 2. The rotatable extrapolation to the screw tube 2 is as follows: The joint tube 3 is externally inserted into the small diameter portion of the threaded tube 2 from above while pushing and expanding the lower end opening of the large diameter portion using the elasticity of the notch 35,
The annular protrusion 34 of the joint tube 3 is inserted into the annular groove 2 of the screw tube 2.
This is done by loosely fitting it into 4.

Further, the middle cylinder 4 has a substantially cylindrical shape, and has a notch 41 provided at its lower end from below. The middle cylinder 4 has its upper part protruding from the outer cylinder 1, and its lower part rotatably inserted into the outer cylinder 1 and fixed to the joint cylinder 3. , insert the middle tube 4 into the upper small diameter part of the joint tube 3, and connect the notch 41 of the middle tube 4 and the joint tube 3.
At the same time, the lower outer periphery of the middle cylinder 4 is fitted into the annular groove 3 of the joint cylinder 33 at the caulking part 42.
This is done by caulking to 2.

Further, the threaded rod 5 is constructed by coaxially fixing a cosmetic holding portion 52 to the upper end portion of the threaded portion 51. The cosmetic holding part 52 has a generally cylindrical shape, and the outer peripheral diameter of its side wall is slightly smaller than the inner diameter of the middle cylinder 4, but the side wall of the opening holding end thereof is approximately tapered outward. The outer diameter of the tip is slightly larger than the inner diameter of the middle tube 4 prior to insertion into the middle tube 4 so that the tip can stick to the inner peripheral side wall of the middle tube 4. There is. Further, the threaded portion 51 is formed with flattened surfaces 53 having no threads on both sides so that it can be inserted non-rotatably and slidably into the engagement hole 31 of the joint tube 3, and each flattened surface 53 has no threads. At the tip (lower end) of the flat surface 53, there is a protrusion that is approximately the same as the thread diameter of the threaded portion 51 (but smaller than the thread diameter) and slightly larger than the length of the short side of the engagement hole 31 of the joint tube 3. The portion 54 is configured to protrude so as to connect a thread. The protrusion 54 is arranged on the upper surface so that it can be inserted into the engagement hole 31 of the joint tube 3 from the side of the cosmetic holding part 52, that is, from above, but cannot be separated from the engagement hole 31 from the opposite side. The upper surface is formed with a steep slope, and the lower surface is formed with a gentle slope.

Therefore, the threaded rod 5 has a threaded portion 5 at its lower part.
1 is inserted into the coupling tube 3 through its engagement hole 31 and screwed into the screw tube 2, and the upper cosmetic holding part 5 is inserted.
2 is slidably inserted into the middle cylinder 4. That is, the threaded portion 51 is inserted into the engagement hole 31 of the joint tube 3 by aligning the flat surface 53 of the threaded portion 51 with the long side of the rectangular engagement hole 31, and inserting the lower end of the threaded portion 51 into the engagement hole 31 of the joint tube 3. This is done by inserting it into the engagement hole 31. During this insertion, the protruding part 54 at the lower end of the threaded part 51 is made slightly larger than the short side of the engagement hole 31 as described above, and its lower surface is formed with a gentle slope. , the engagement hole 31 and the protrusion 54
Due to its elastic deformation, it passes over the engagement hole 31 and is inserted into the joint cylinder 3. By inserting the protrusion 54,
The threaded portion 51 is slidably inserted into the joint tube 3,
Its rotation is prevented by the engagement (contact) action between the flat surface 53 and the engagement hole 31, and furthermore, its separation is prevented when the steep slope of the upper surface of the protrusion 54 touches the periphery of the long side of the engagement hole 31. Since it abuts from below, it is reliably blocked.
Moreover, the threaded part 51 is screwed into the threaded tube 2 by the threaded part 5.
This is done by rotating the threaded tube 2 with respect to 1 and screwing the threaded portion 51 into the threaded hole 21 of the threaded tube 2. Moreover, the insertion of the cosmetic holding part 52 into the middle cylinder 4 is carried out by forcibly inserting the tip of the tapered opening holding end slightly larger than the inner diameter of the middle cylinder 4 into the middle cylinder 4. I went there. By forcibly inserting the tip of the tapered opening holding end into the middle tube 4, the tip can be directed inward by the inner peripheral side wall of the middle tube 4. It will be pushed back in the radial direction. Therefore, the cosmetic holding section 52
The space between the container and the inner tube 4 is completely sealed, and the volatile components of the volatile cosmetic material 9 are blocked from the outside air and do not volatilize. Note that the side wall of the tapered opening holding end of the cosmetic holding portion 52 may simply project outward in a tapered shape, but as shown in FIGS. The tapered opening holding end of the inner tube 4 is bent once inward to form a constricted part with an inner diameter slightly smaller than the inner diameter of the side wall of the cosmetic holding part 52 other than the opening holding end. This is preferable because it enhances the push-back effect and allows the cosmetics 9 to be held securely.

The lower part of the relay ring 6 is inserted and fixed into the upper part of the outer cylinder 1, and the middle cylinder 4 is rotatably inserted therein, and the cap 7 is attached to the upper outer circumference. Projection 61 for locking
is installed protrudingly.

Further, the cap 7 is sized so as not to leave much of a gap between the innermost part of the cap 7 and the middle cylinder 4 when it is inserted into the relay ring 6.

Further, the packing 8 is formed in a roughly cylindrical shape, and has a loop-shaped rib 81 having a vertical rib 82 protruding from its inner wall, and its tip is brought into close contact with the outer circumferential side wall of the middle cylinder 4, The space between the cap 7 and the inner cylinder 4 is reliably sealed to isolate the volatile cosmetics 9 from the outside air and prevent the volatile components from volatilizing. And its outer diameter is larger at the upper and lower ends,
The middle part is made smaller. Then, Patsuking 8
is a double-sided adhesive tape 10 on the inside of the cap 7.
It is installed by inserting and fitting it through. For this installation, the packing 8 is inserted into the cap 7 by attaching double-sided adhesive tape 10 to the outer periphery of the middle part of the packing 8. At this time, since the middle part of the packing 8 has a small diameter, The packing 8 can be easily inserted into the cap 7 without attaching the double-sided adhesive tape 10 to the cap 7. To fix the packing 8 to the cap 7, the cap 7 with the packing 8 inserted therein is externally inserted into the inner cylinder 4, and the rib 81 of the packing 8 is pushed outward in the radial direction of the packing 8 using the outer peripheral wall of the middle cylinder 4. This is done by pushing out the double-sided adhesive tape 10, thereby pressing the unbonded surface of the double-sided adhesive tape 10 onto the inner peripheral side wall of the cap 7.

Here, when the cap 7 is extrapolated onto the middle cylinder 4, the rib 81 can be brought into contact with the middle cylinder 4 in a loop shape, so that the cap 7 with the packing 8 can be easily extrapolated onto the middle cylinder 4. be able to.
Note that the vertical ribs 82 are for blocking the loop-shaped ribs 81.

Further, the volatile cosmetic 9 may be melted and poured into the inner cylinder 4 and held in the cosmetic holding portion 52 of the screw rod 5, or may be held as a semi-solid or core cosmetic. It may also be held by being inserted into the material holding portion 52.

When using the cosmetic containers of FIGS. 1 to 4 constructed as described above, the cap 7 is connected to the relay ring 6.
What is necessary is to remove the inner cylinder 4 from the inner cylinder 4 to expose the inner cylinder 4, grasp the inner cylinder 4 with one finger, and rotate the outer cylinder 1 with the other finger. In this way, the gripped and stationary middle cylinder 4
The joint tube 3 fixed to the joint tube 3 also remains stationary without rotating, and as a result, the screw rod 5, which is unrotatably inserted into the engagement hole 31 of the joint tube 3, is prevented from rotating. When the outer cylinder 1 rotates, the threaded cylinder 2 fixed to the outer cylinder 1 also rotates integrally, so the threaded rod 5 whose rotation is prevented rotates with the threaded part 51 at the lower part thereof. The threaded tube 2 moves upward due to the threaded engagement with the threaded hole 21, and as a result, the cosmetic holding portion 5 of the threaded rod 5
2 slides upward inside the inner cylinder 4 to hold the cosmetic holding part 5.
The upper end of the cosmetic 9 held in the inner tube 2 can be exposed from the upper end of the inner tube 4.

On the other hand, when storing the cosmetics 9, the outer cylinder 1 may be rotated in the opposite direction to the above case.

Although a preferred embodiment of the cosmetic container of the present invention has been described above, the cosmetic container of the present invention is not limited to this embodiment. The hole can also be modified, for example, as follows.

In the embodiment shown in FIGS. 1 to 4, the flattened surfaces 53 are provided on both sides of the threaded portion 51 of the threaded rod 5, but the flattened surface 53 is provided only on one side of the threaded portion 51. Also good. In this case, the engagement hole 31 of the joint tube 3 has a split circle shape with one substantially straight side, and the protrusion 54
becomes one. Further, if the maximum diameter of the protrusion 54 is set to be equal to or less than the root diameter of the thread of the threaded part 51, the protrusion 54 does not need to be provided along the thread, and the thread of the threaded part 51 can be easily formed. can be done.

In addition, each part other than the threaded part of the threaded rod and the engagement hole of the joint tube in the above embodiment can be modified as follows, for example.

In the embodiments shown in FIGS. 1 to 4, the side wall of the opening holding end of the cosmetic holding part 52 of the screw rod 5 is made to protrude outward in a substantially tapered shape. As shown in FIG. 5, a sealing rib 55 may be integrally provided on the outer periphery of the opening holding end, and the sealing rib 55 may provide a seal between the cosmetic holding part 52 and the inner tube 4. . However, the sealing effect between the cosmetic holding part 52 and the inner tube 4 is better in the embodiments shown in FIGS. 1 to 4.

Also, the interpolation point of packing 8 is cap 7
It is not limited to the innermost part of the cap 7, but may also be located in the middle part of the cap 7, and as shown in FIG.
1 may be provided. Furthermore, when fixing the packing 8 to the cap 7, an adhesive may be used instead of the double-sided adhesive tape 10. Furthermore, an inner stopper 83 may be fixed to the upper part of the packing 8, as shown in FIG. However, like this, the inner stopper 8
3, it is necessary to secure a space deep inside the cap 7, which forces the total length of the cosmetic container to be longer.

[Effect of idea]

As described above, the cosmetic container of the present invention has a flat tip portion provided on the thread portion of the screw rod having the cosmetic holding portion and the thread portion so as to be able to engage with the engagement hole of the joint tube. The protrusion is configured such that the protrusion has a diameter equal to or less than the thread diameter of the thread and can be inserted into the engagement hole from the side of the cosmetic holding part, but cannot be removed from the engagement hole from the opposite side. Therefore, the screw rod can be easily inserted into the joint tube without making a cut in the joint tube, and it has the practical effect of reliably preventing the screw rod from separating from the joint tube. Since it is not necessary to provide a notch in the joint tube, the joint tube can have a simple structure. The packing is inserted and fitted, and a loop-shaped rib is protruded from the inner wall of the packing so that its tip can be brought into close contact with the outer peripheral side wall of the middle cylinder. This provides practical effects in that extrapolation can be easily performed and the sealing between the cap and the inner cylinder can be ensured.

[Brief explanation of the drawing]

1 to 4 show a preferred embodiment of the cosmetic container of the present invention, in which FIG. 1 is a longitudinal cross-sectional view thereof, and FIG. 2 is a cross-sectional view thereof taken along line A-A in FIG. 1. , Fig. 3 is an exploded perspective view of the cap, Fig. 4 is an enlarged partial cross-sectional perspective view of the packing into which the cap is inserted and fitted, Fig. 5 is a perspective view of another spiral rod, and Fig. 6 is a perspective view of another cap. FIG. 7 is a perspective view of yet another packing with an inner stopper. 1... Outer cylinder, 2... Threaded tube, 3... Joint tube, 31... Engagement hole, 4... Middle tube, 5... Threaded rod, 51... Threaded part, 5
2... Cosmetic holding part, 53... Flat surface, 54... Protruding part, 6... Relay ring, 7... Cap, 8... Packing, 81... Rib, 82... Vertical rib, 9... Cosmetics.

Claims (1)

[Scope of utility model registration request] A screw rod having a cosmetic holding part for holding cosmetics and a threaded part, an inner cylinder into which the cosmetic holding part is slidably inserted, and a threaded rod fixed to the middle cylinder and rotating the threaded part. A joint tube that is inserted into the joint tube without being inserted, a screw tube that is screwed with the threaded part and rotatably inserted into the joint tube, and a cap that is inserted into the middle tube,
A cosmetic wherein the cosmetic holding portion slides along the middle tube by rotating the middle tube and the threaded tube with respect to each other, so that the cosmetic comes out and disappears from the middle tube. In the container, a cylindrical packing is inserted into the cap, and the packing has a loop-shaped rib having a vertical rib on its inner wall so that its tip can be brought into close contact with the outer peripheral side wall of the middle cylinder. The joint tube has at least one substantially straight side and is provided with an engagement hole through which the threaded portion is inserted, and the threaded portion is configured to protrude from the threaded portion. at least one side thereof is provided with an oblique surface that engages with the substantially straight side, and the tip of the oblique surface is provided with a protrusion having a diameter equal to or less than the thread diameter of the thread,
The cosmetic container is characterized in that the protruding portion is configured such that it can be inserted into the engaging hole from the side of the cosmetic holding portion, but cannot be removed from the engaging hole from the opposite side. .