JPH041601B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application This invention relates to a lipstick cup to which a lipstick is attached.

B. Summary of the Invention The present invention provides a generally cylindrical shape for use in a lipstick device that is partially engaged with a lipstick 30 comprising a lipstick composition and adapted to slide within a sleeve 8 of the device. In a lipstick cup 19 having a cylindrical or prismatic shape, at least a portion 26 of the side wall of the cup is oriented outwardly with respect to the cylindrical or prismatic surface envelope 20a of the overall shape of the cup. Along with standing out,
A lipstick product, characterized in that when the cup 19 is engaged in the sleeve 8, this portion 26 can be pushed back radially inward. It's in Katupu.

C. Problems to be Solved by the Invention This lipstick device is fully satisfactory as long as the user takes precautions such as keeping the tip of the lipstick facing upward when in the fully retracted position. It is. However, since women who use them often carry them in their handbags, it is practically impossible to always follow these precautions. From such a thing,
Also, especially because of bumping and shaking, when putting a lipstick into a cup, the lipstick can easily be pulled out of the cup, even though the base of the lipstick is initially pushed firmly into the cup. This situation arises. Furthermore, it is worth noting that the firm grip of the lipstick within the cup is somewhat imaginary since the lipstick is a relatively soft item at the temperatures at which it is used. be. Also, the more tightly the lipstick is gripped by the cup, the more difficult it becomes to position the lipstick by pushing.

D. Means, action, and effect for solving the problem One of the objects of the present invention is to provide a stick that ensures proper retention of the base of the lipstick in the cup, no matter where the lipstick is located. The purpose is to provide a cup for Beni.

Another object of the invention is to provide a cup that is simple and economical to manufacture and which allows the lipstick to be easily positioned within the cup.

To achieve this objective, the cup according to the invention is characterized in that at least a portion 26 of the side wall of the cup 19 is symmetrical with respect to the cylindrical or prismatic surface envelope 20a of the overall shape of the cup. ,
This portion 26 projects outwardly and when the cup 19 is engaged within the sleeve 8.
can be pushed back inward in the radial direction. The straining of the cup, with the inward pushing back of said portion projecting outwardly from the side wall of the cup, may be partially plastic, but as far as possible it is preferable for this strain to be completely elastic.

To obtain this advantageous effect, the outwardly projecting portion of the side wall of the cup is constituted by an undercut portion of the flared cup edge on the side opposite the cup bottom. Additionally, the side wall of the cup is provided with at least one slit extending generally axially and opening toward the edge of the cup opposite the bottom of the cup. This configuration, on the one hand, facilitates the elastic straining of the undercut part of the rim, which ensures a suitable firm grip within the cup of the lipstick, and on the other hand, The protruding shape provided at the entrance of the cup thus made also facilitates the operation of inserting the lipstick into the cup during assembly work.

The slits in the cup should preferably open at the enlarged neck of the edge opposite the bottom, to prevent streaks on the lipstick and sleeve sidewalls, and to prevent breakage or damage to the cup in the sleeve. It is better to avoid the presence of protruding square parts that could interfere with the proper operation of the lipstick by even blocking the movement of the lipstick.

If the undercut overhang is confined to the edge of the cup between the enlarged necks of two successive slits around the periphery of the cup, an excellent elastic grip on the lipstick is obtained. Furthermore, the elastic properties of the thus delimited overhang are:
An even greater improvement is achieved if the slit extends from the edge opposite the bottom of the cup to an axial position approximately at the level of the stud of the cup.

In particular, retention of the lipstick that prevents rotation of the lipstick about a longitudinal axis within the cup is achieved by further providing the cup with at least one rib extending generally axially and projecting radially inside the cup side wall. If so, it will be strengthened.

If each rib extends between two successive slits around the periphery of the cup and approximately equidistant from these slits, and if each rib extends from the bottom of the cup to an axial position slightly beyond the stud of the cup, , the presence of the ribs does not interfere with the effect of the slits.

Another advantage of the cup according to the invention, which delimits the outwardly projecting portion to the cup edge opposite to the bottom, is that the effective height of the cup between the cup bottom and the free edge opposite to this is reduced. Taking this into account, a firm grip on the lipstick can be secured in a very convenient position at the highest point from the bottom.

In an advantageous embodiment of the invention, which combines the advantages of simple manufacture and high efficiency, the cup is shaped like a tulip, and an outwardly projecting edge of the cup is provided opposite the bottom of the cup. It is divided into three undercut sections delimited between three regularly spaced slits around the periphery.

In a lipstick device using the cup of this invention, the cup has two studs which project radially outward and travel through a slot.
The slot is provided with notches at each end thereof, each extending circumferentially at one slot end in a direction opposite to that at the other slot end. The slot is located in the side wall of the cylindrical sleeve and allows the cup to move generally axially within the sleeve. Also these studs,
It engages a helical groove in the inner wall of a cylindrical liner that is encased on the outside. The sleeve is held axially relative to the case and is rotatably mounted about its own axis.

In such a lipstick device, the edge of the cup opposite the bottom of the cup is secured by an outwardly projecting portion that emerges from the sleeve when the lipstick is moved to its maximum extrusion position. It is advantageous if a firm grip is not achieved in this position or only incompletely achieved. This is because the lipstick is rarely used in this maximum extrusion position, and such a position is only used when the lipstick is used up and becomes a small piece of lipstick. be. Preferably, however, the axial distance from the opposite edge of the cup bottom to the stud and the axial position of the end of the slot and/or groove from the side opposite the cup bottom on the sleeve and/or liner It is better to prevent the edge opposite the bottom of the cup from emerging from the sleeve when the lipstick is in its maximum extrusion position, so as to ensure adequate gripping action regardless of the remaining length of the lipstick. good.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown, the lipstick device comprises a protective external case 1 made of metal with a cylindrical shape, the case having a circular cross-section and whose upper edge is inwardly rounded in the shape indicated by the collar 2. It is bent and thereby forms a boundary with the circular central passage 3. Case 1
A thin liner 4 made of cylindrical plastic material with a circular cross-section but a height lower than that of the case 1 is fixed in an axial position, while the round collar 2 of the case 1 an upper chamber or compartment 5;
On the other hand, the lower end of the case 1 and the annular lower housing 6 are respectively bounded. Two helical grooves 7 are arranged inside the liner 4, and these grooves are equal to each other but are diametrically opposed to each other. Make sure that it does not open completely.

A sleeve 8 made of plastic material is placed inside the coaxial unit composed of the case 1 and the liner 4.
They are mounted substantially coaxially and rotatably about their own axis, but not fixed in axial position. The sleeve 8 has a tubular section 9 of circular cross section with a diameter slightly smaller than the inner diameter of the liner 4, and at the upper end of the sleeve, when the tubular section 9 is inserted into the liner 4, the upper An axial detent pawl 10 is formed which engages the compartment 5. A slot 11 is defined as two equal slots extending in the axial direction over the entire actual height of the tubular portion 9, and constituted by notches 12 and 13 extending in the circumferential direction in opposite directions at both upper and lower ends thereof. , are arranged at mutually opposite portions on the diameter of the tubular portion 9. At its lower end, the tubular part 9 has an outwardly facing radial shoulder 1
4 to a cylindrical end fitting 15 whose internal diameter is equal to the internal diameter of the tubular part 9 and whose external diameter is virtually equal to the external diameter of the case 1. The end fitting 15 has at its lower end a radially internal rabbet 16 with an axial peripheral flange 17 directed towards the tubular part 9 and forming a circular central passage 18.

When the sleeve 8 is located within the liner 4 and case 1, the outwardly facing radial shoulder 14 fits within the annular lower housing 6 and thus the sleeve 8
is held axially within liner 4 and sleeve 8
abuts against both ends of the liner 4 with its projections 10 and shoulders 14. The sleeve 8 can also be driven rotationally about an axis within the liner 4 by using an end fitting 15 which protrudes from below the liner 4 and the case 1 and is therefore freely accessible. .

A generally cylindrical cup 19 is mounted within the sleeve 8. This cup 19 has a main tubular part 20 and an auxiliary tubular part 21, which are separated from each other by a bottom part 22 with a central passage 23 of small diameter. The height of the main tubular part 20 is the same as that of the auxiliary tubular part 21.
and the former 20 is provided with two radially cylindrical studs 24 projecting outwardly on the outer side of its side wall, the height of the studs 24 being:
When the cup 19 is in position within the sleeve 8, each stud passes through a slot 11 in the sleeve 8 and is at a height to engage a groove 7 in the liner 4.

When the sleeve 8 is rotated about its longitudinal axis relative to the liner 4 and the case 1, the cup 19 is moved together with the sleeve 8 into the liner 4 by the guidance of the stud 24 provided by the slot 11 and the groove 7. It is rotated between two end positions along the helical groove 7 in the sleeve 8 so as to move axially within the tubular part 9 of the sleeve 8. One of these two end positions is the down or retracted position as shown in FIG. A locking effect in position can be ensured at the end of rotational movement in one direction. The remaining one of the end positions is the upper position in which the stud 24
The groove is located at the upper end of the groove 7 and the slot 11, and as before, a locking action in this position by the notch 12 can be ensured at the end of the rotational movement in the other direction.

In the retracted position of the cup 19, as shown in FIG. It fits within the annular space formed by 17. Such a structure makes it possible to ensure good guidance for the cup 19.

As shown in FIG. 2, at least a portion 26 of the side wall of the main tubular portion 20 opposite the bottom 22 of the cup 19 is flared outwardly to cover the outer surface of the main tubular portion 20, i.e., the entire portion of the cup. in this way, the lipstick 30 made of the lipstick composition is pushed into the cup 19 until its leg comes into contact with the bottom 22 of the cup 19. When pushing it inside, use 30% of the stick.
A tapered entrance is formed to facilitate insertion into the bottom of the main tubular portion 20. This main tubular part 2
Preferably, the side wall of 0 is divided into three equal parts 26 by three axial slits 27. This portion 26 has an undercut portion 25a of the edge 25 that projects outwardly. These three sections 26 form the main tubular section 20
The slits 27 are arranged on the side wall of the cup 19 at regular intervals around the periphery of the cup 19, and each slit 27 extends from the edge 25, which is open via an enlarged neck 28, approximately at studs 2.
Extend to the axis position at level 4. Furthermore, three axial ribs 29 located centrally between the two subsequent slits 27 protrude from the inner surface of the side wall of the main tubular portion 20 and extend from the bottom 22 to an axial position slightly beyond the stud 24. .

The lipstick 30 is inserted into the cup 19 from the bottom when the cup 19 is not yet attached to the sleeve 8. Next, attach the cup 19 and the lipstick 30 to the sleeve 8.
When the tubular portion 9 is inserted, the undercut portion 25a, which has an outer diameter larger than the inner diameter of the sleeve 8 in a free state, contacts the inside of the sleeve 8 and elastically moves inward in the radial direction. It is pushed back so that the lipstick 30 is held firmly and grasped in position within the cup 19, as shown in FIG. As shown in FIG. 4, the main tubular portion 20 of the cup 19
Due to the inward strain of the undercut part 25a, which is in elastic contact with the tubular part 9 of the sleeve 8, a firm retention of the lipstick 30 is ensured. The distance from the edge 25 of the main tubular portion 20 to the stud 24 and the distance from the upper end of the groove 7 and slot 11 to the upper end of the sleeve 8 are determined as follows. That is, rotation of the end fitting 15 within box A in FIG. When moving into position, the undercut portion 25a is arranged so that it does not appear on the outside of the sleeve 8, so that the lipstick 30
A firm grip of the cup 19 within the sleeve 8 and the end fitting 15 relative to the liner 4 and the case 1 is ensured at all positions over the entire effective length of the lipstick 30. It is further noted that the ribs 29 improve the locking of the lipstick 30, particularly against rotation within the cup 19.

Although the present invention has been described above in detail with reference to the embodiments, it goes without saying that the embodiments can be modified in various ways without departing from the spirit of the invention.

[Brief explanation of drawings]

Figure 1 is a side view of the lipstick device, and Figure 2 is an enlarged view showing some of the components of the lipstick device of Figure 1 in cross-section and in side view, with the lipstick removed for clarity. Figure 3 is a sectional view taken along the axis of the lipstick device shown in Figure 1 with the lipstick removed; Figure 4 is the cooperation of the lipstick, cup and sleeve to firmly grasp the lipstick in the cup; It is a partial sectional view showing a state. DESCRIPTION OF SYMBOLS 1...Case, 2...Collar, 3...1 circular passage, 4...Liner, 5...1 upper section, 6...
... Housing of 1, 7 ... Helical groove, 8 ... Sleeve, 9 ... Tubular part, 10 ... Stopper claw, 11 ...
...Slot, 12, 13...Notch, 14...Shoulder, 15...End attachment part, 16...Rabbet,
17...flange, 18...center passage, 19...
Cup, 20... Main tubular part, 21... Auxiliary tubular part, 22... Bottom, 23... Center passage, 24...
Stud, 25...Edge of 20, 25a...Undercut portion, 26...Part of side wall of main tubular portion, 27...Slit, 28...Neck, 29...
...Rib, 30...stickstick.

Claims (1)

Claims: 1. A generally cylindrical or shaped lipstick for use in a lipstick device partially engaged with a lipstick 30 of a lipstick composition and adapted to slide within a sleeve 8 of the lipstick device. In the prismatic lipstick cup 19, at least a portion 26 of the side wall of the cup protrudes outward with respect to the cylindrical or prismatic surface envelope 20a of the overall shape of the cup. , a lipstick characterized in that when the cup 19 is engaged in the sleeve 8, this portion 26 can be pushed back radially inwardly. For cup. 2. Each of the outwardly protruding portions 26 of the side wall of the cup 19 includes an undercut portion 25a of the edge 25 that is provided on the opposite side to the bottom 22 and projects outward;
Claim 1, characterized in that the side wall of the cup 19 is provided with at least one slit 27 extending approximately axially and opening at the edge 25 of the cup 19 opposite the bottom 22. A cup for lipstick according to item 1. 3. Pass each slit 27 of the cup 19 through the enlarged neck 28 of the edge 25 to the bottom 22.
3. The lipstick cup according to claim 2, wherein the lipstick cup has an opening on the opposite side. 4. Connect each portion 26 to the edge 2 of the cup 19.
4. A lipstick cup according to claim 3, characterized in that, on the periphery of the cup, it is delimited between enlarged necks 28 of two adjacent slits 27 along the periphery of the cup. 5. Each slit 27 extends from the edge 25 opposite the bottom 22 of the cup 19 to an axial position lying approximately at the level of the stud 24 of the cup 19. A lipstick cup according to any one of Items 2, 3, and 4. 6. At least one rib 29 extending substantially axially and projecting radially inwardly of the main tubular portion 20 of the cup 19. 6. The lipstick cup according to any one of items 5 to 5. 7. Each rib 29 extends between two adjacent slits 27 of the cup 19 at substantially equal distances from the two adjacent slits 27 of the cup 19. The cup for lipstick according to item 6. 8. A lipstick cup according to any one of claims 1 to 7, characterized in that it is provided with two protruding studs 24 on the outside for causing movement of the cup. 9. Connect each rib 29 to the bottom 2 of the cup 19.
9. A lipstick cup according to claim 8, characterized in that it extends from 2 to an axial position slightly above the stud 24 of said cup 19. 10 The bottom part 2 is shaped like a tulip.
The tulip-shaped edge 25 provided on the side opposite to the cup 19 and extending outward is divided into three portions 26, and these portions 26 are regularly spaced around the periphery of the cup 19. Claim 3, characterized in that the slits 27 are demarcated and a portion of the cup close to the bottom 22 defines the cylindrical surface envelope of the cup. A cup for lipstick.