JP2022520338A - 100% recyclable and replaceable eco-friendly PET lipstick construction - Google Patents

Abstract

It has a core tube, a cover that engages to rotate outward, a lipstick tube that engages axially inside the core tube, a spiral groove on the inner wall of the cover, and along the axial direction of the core tube. It includes a guide groove and a protruding engagement pin provided on the outer surface of the lipstick tube, the engagement pin slides through the guide groove of the core tube and the spiral groove on the inner wall of the cover to engage, and the rear end of the core tube. A part of the outer circumference is a grip portion, a ring bead is provided on the outer circumference of the rear end of the core tube near the grip portion, and the inner circumference of the portion where the cover and the ring groove of the core tube engage with each other is provided with each other. Disclosed is a 100% recyclable and replaceable eco-friendly PET lipstick structure in which the rotatable ring groove is properly arranged and the cover, core tube and lipstick tube are all manufactured using PET. The present invention has a novel structure, is safe and hygienic, is transparent and bright, is smooth to operate, and meets environmental protection standards. The materials of all three parts are the same, the contents do not need to be recycled and separated after use, and meet the requirements for environmental protection. All materials are harmless and avoid the risk of metal spring contamination in the prior art. [Selection diagram] Fig. 1

Description

The present invention relates to a cosmetic package, and more particularly to a configuration of a new type eco-lipstick container.

With the development of society, cosmetics and skin care products including paste-like cosmetics such as stick foundation, stick eye shadow, stick cheek, stick concealer, lip balm, deodorant stick, stick-type paste perfume, etc. are collectively referred to as lipstick in a broad sense today. The use of lipstick has become universal in the lives of the general public. Lip gloss and lipstick in lipsticks are products that moisturize, protect the lips, enhance the beauty of the face, correct the contour of the lips, and enhance them by giving the lips a reddish and glossy luster. Is. In addition, the related paste-like cosmetics and skin care products have become one of the indispensable beauty cosmetics for women, and can express the beauty and luster of women. Lipsticks and related pasty cosmetics and skin care products are usually favored by many women because of their ease of use and resistance, as well as their portability and ease of use. However, conventional lipstick packaging products have a complicated structure and high manufacturing cost, use contaminated metal springs, have an opaque appearance and the color of the contents is difficult to distinguish, and are difficult to use due to improper structure. In addition to various problems such as, there is a problem that the materials used for each part of the container body are mixed and cannot be recycled.

It is well known in the world today that pollution is very serious and resources are scarce, but especially in the field of cosmetics, plastic product packaging is especially common and traditional cosmetics. Since the package has a repositioning mechanism using a spring in the lipstick container, for example, the lipstick container package to be discarded could not be recycled. However, for environmental protection, energy saving and reuse, the manufacture of recyclable cosmetic packages is necessary for the development of society.

Given the current international environmental situation, the world is calling for carbon dioxide reductions, and EU countries and the United States now stipulate that 90% of plastics must be recycled by 2029. The plastic PET currently in use is recognized as the most suitable plastic for recycling and is very versatile and can be recycled into textile yarns for PCR, PET plastic and the clothing industry. However, in the conventional commercially available lipstick container, due to structural design and performance restrictions, each component is made of a different material, that is, a mixed material such as POM or PS plastic is mixed. Since it is used, it cannot be recovered directly, which is also an environmental problem that needs to be resolved immediately.

The present invention solves various problems such as structure and environmental protection existing in the conventional lipstick container, and the structure is new, safe, hygienic without internal pollution, transparent, bright and vivid, and the length of lipstick is adjusted. The purpose is to provide an environmentally friendly and economical lipstick container structure that is possible and that the entire package can be recycled after the paste has been used.

The object of the present invention is realized by the following technical means.

A bifurcated core tube, a circular tubular cover that engages to rotate outside the core tube, a lipstick tube that engages axially slidably inside the core tube, and a spiral groove created on the inner wall of the cover. Includes a guide groove made along the axial direction of the core tube and a protruding engagement pin provided on the outer surface of the lipstick tube, the engagement pin passes through the guide groove of the core tube and spirals on the inner wall of the cover. It slides and engages with the groove, and the outer periphery of the rear end of the core tube is partly a grip portion, and at least one ring groove \ ring bead is provided on the outer periphery of the rear end of the core tube near the grip portion. Ring grooves of the cover and the core tube \ Ring grooves that can rotate with each other are appropriately arranged on the inner circumference of the portion where the ring beads engage with each other, and the ring groove of the core tube \ the front end portion of the ring bead There is an elastic arch-shaped spring sheet, the base of the spring sheet and the wall of the core tube are integrally connected, and the end of the spring sheet jumps outward and protrudes from the surface of the core tube, and the torque during rotation. 100% recyclable and replaceable eco-friendly PET featuring that the spring sheet is assembled and then fitted into the groove corresponding to the inside of the cover for smoother rotation. It has a lipstick structure. In addition, the cover, core tube and lipstick tube are all manufactured using PET, which is a harmless material of food package grade, and a part of the surface is treated by an appropriate matting method to make the structure colorless and transparent or translucent. Will be done.

By rotating the core tube and the cover relatively, the spiral groove of the cover pushes the engaging pin, and the engaging pin is also subjected to the reverse thrust action of the guide groove of the core tube, and the forces of both are combined. The engagement pin is prompted to move along the guide groove. Since the engagement pin and the lipstick tube are integrally connected, the engagement pin moves along the guide groove, that is, the lipstick tube is moved along the axial direction.

The rear end of the core tube near the grip portion and the cover are engaged by the ring groove and the ring bead, and the core tube and the cover are engaged with each other by the ring groove and the ring bead so that they rotate and do not come off. Engagement between the ring groove and the ring bead is achieved by proper extrusion.

All parts of this device are manufactured from colorless and transparent PET material, so you can directly observe the color of the original lipstick, which is convenient for production, control, purchase or selection. Yes, and the product can be made more brilliant. All three parts are made of PET material, the contents are completely recyclable after use and do not need to be separated, and they are colorless, that is, non-colorable, and fully meet the requirements of environmental protection standards. The PET material is polyethylene terephthalate, which is a non-toxic and odorless material, and is excellent in hygiene and safety. In addition, it has low transmittance of gas and water vapor, excellent barrier property to gas, water and oil, odor performance, high resistance, low temperature performance, high transparency, can block ultraviolet rays, and has gloss. It has the advantage of being good. In addition, PET is harder than other materials such as PS used in traditional techniques and has the corresponding mechanical strength, so by manufacturing a core tube using PET, the material can be completely recycled. It can demonstrate its strengths and the device can be structurally different from traditional technology lipstick containers.

The device also avoids the risk of internal contamination caused by the use of metal springs in the prior art.

In a preferred embodiment, the spiral groove on the inner wall of the cover is a uniformly distributed double thread, the guide groove on the core tube is two symmetrical straight grooves, and the protruding engagement pins on the outer surface of the lipstick tube. Is located in two symmetrical locations corresponding to two straight grooves.

In a preferred embodiment, lateral one-step side grooves are extended at both ends of the guide groove, and the direction in which the side grooves extend is opposite to the rotation direction of the connected guide grooves. The opening of the side groove has an arcuate ridge, and the width from the ridge to the other side of the side groove opening is slightly smaller than the diameter of the engagement pin.

As the engaging pin passes through the side groove opening, it is pushed out, causing elastic deformation of the associated structure of the side groove opening. In addition, elastic deformation occurs in both the surface layer of the engaging pin and the surface layers on both sides of the side groove opening. The overall effect of the deformation is until the engaging pin can sufficiently push the side groove opening, and after the engaging pin pushes the side groove opening, all the elasticity of each related structure and each surface layer is restored. Also, due to the pushing force and inertia when pushing, the engaging pin may continue to move forward and hit the bottom or side wall of the side groove, and the elasticity will return to its original state and the vibration will occur and a clicking sound will be heard. put out. The sound allows the user to understand the state of operation. By adopting an arc-shaped structure for the raised point of the side groove opening, it is advantageous to expand the deformation due to extrusion and reduce the abrasion, and the time is short.

In a preferred embodiment, the spiral tilt angle of the spiral groove is 25 ° to 35 °.

In a preferred embodiment, the protruding engagement pin and the lipstick tube are integrally molded manufactured by injection molding, and the cover, the core tube and the lipstick tube are all manufactured using the harmless material PET of the food package grade, and the surface thereof. A portion of the above is treated with a matte method to give it a colorless and transparent or translucent structure.

In a preferred embodiment, the outer periphery of the rear end of the core tube is partially a grip portion, and the outer periphery of the grip portion is provided with a rectangular or diamond-shaped pattern.

In a preferred embodiment, the inner surface of the lipstick tube is provided with a plurality of reinforcing ribs along the axial direction.

In a preferred embodiment, the portion from the middle to the front end of the guide groove is provided with some other side grooves in parallel with the lateral one-step side groove extending at each end, and the direction in which the some side grooves extend is It is in the same direction as the side groove at the front end. Further, there are three ring beads at the rear end of the core tube near the grip portion, and each of the three ring beads has a certain distance. There are two ring grooves on the cover, and each of the two ring grooves has a constant width. After the three ring beads and the two ring grooves are engaged, a certain axial gap is provided. The core tube and the cover have a constant relative slide distance along the axial direction by utilizing the gap.

In a preferred embodiment, the spring sheet has one or more openwork structures, and when there is one spring sheet, it surrounds the outer side wall of the core tube, and when there is more than one spring sheet, the core tube. Is evenly distributed on the outer sidewalls of the. The openwork structure includes several partitions, the base of the partition located in the middle and the wall portion of the core tube are connected, and the hardness and thickness of the base of the partition located in the middle are larger than those of the other partitions. A protrusion is provided outward at the end of the partition located in the middle, and the protrusion firmly supports the inner side wall of the cover. The protrusions become thinner toward the outside, and the shape resembles the back of a cow's horn comb. One protruding outer edge is provided at the bottom of the grip portion, and the protruding outer edge is at a position where the ring groove \ ring bead on the outer periphery of the grip portion rotates exactly with the ring bead \ ring groove on the cover. It will be provided. There are three main actions of the partition located in the middle of the spring sheet, the first is the action of fixing the core tube and the cover, and the second is the diameter of the partition located in the middle of the spring sheet is the core tube and others. Because it is larger than the diameter of the part of the core tube, when the core tube fits inside the cover and the grip is rotated by hand, there is too much contact and friction between the other part of the core tube wall and the cover to rotate. The user feels an appropriate rotational force when rotating, and it is comfortable to use, and the third is similar to the back of the cow horn comb of the partition located in the middle of the spring sheet. The design of the shape itself is to reduce the frictional force between the core tube wall and the inner side wall of the cover. The protruding outer edge has a limiting action, that is, the partition located in the middle of the spring sheet of the core tube fits into the inner side wall of the cover, and further covers the core tube by the limiting action of the outer edge protruding to the grip portion. It can be firmly fixed inside and can be rotated relatively.

The new lipstick container is always filled with the most lipsticks and the length of the lipstick is also the longest, but if only the side groove at the front end determines the length of the lipstick tube to pay out, the newly installed lipstick The end of the core tube is clearly too protruding. Also, if the engagement pin and lipstick container are positioned at an appropriate part in the middle of the spiral groove, it will be in an unstable state and affect the use. By providing multiple parallel side grooves, the lipstick tube can be selected in different positions, and the user can operate the lipstick tube to extend to the appropriate length at the end of the core tube, if necessary. can.

In a preferred embodiment, a lid is provided on the outside of the cover, the bottom of the front end of the lid is a closed bond, and the lid is configured by engaging the front and rear lids.

The beneficial effects of the present invention are as follows.
1. The lipstick container of the present invention has a compact and complete structure, and is completely composed of only three parts. All parts can be mass-produced by injection molding, the cost is low, injection molded parts do not require secondary processing, and assembly is very convenient and fast. In particular, by providing the spiral groove directly on the inner surface of the cover, it is possible to avoid the harmful effects of using the conventional component separation.
2. All parts are colorless and transparent, you can directly observe the color of the original lipstick, which is convenient for production, control, purchase and selection, and can make the product brighter.
3. A part of the surface of the part is treated by an appropriate matting method to make it colorless, and a transparent or translucent structure is achieved by properly treating the relevant surface of the mold, making it possible to manufacture. It's convenient.
4. The materials of all three parts are the same, and the contents do not need to be recycled and separated after use, and meet the requirements for environmental protection.
5. All materials are harmless materials and avoid the risk of metal spring contamination in the prior art.
6. The guide groove and the spiral groove as the prime mover are arranged symmetrically, so that the torque balance during rotation is good and the rotation is stable.
7. The ring groove of the core tube \ The front end of the ring bead has an elastic arch-shaped spring sheet, the base of the spring sheet and the wall of the core tube are integrally connected, and the end of the spring sheet faces outward. Properly protruding from the surface of the spring core tube, the spring sheet is fitted into the corresponding groove inside the cover after assembly to prevent the core tube and cover from separating.
8. Sideways side grooves extend at both ends of the guide groove, and the front end can lock the lipstick container to prevent the lipstick container from loosening and retracting when applying lipstick, which affects the application. can. The rear end ensures that the lipstick container does not automatically slide forward when no torque is applied to the cover.
9. The middle to front end of the guide groove is provided with several other side grooves in parallel with the side grooves at both ends, and multiple side grooves allow the lipstick tube to select different positions, allowing the user to select different positions. If necessary, the lipstick tube can be operated to extend to an appropriate length at the end of the core tube.
10. The opening of the side groove has an arcuate ridge, and the width from the ridge to the other side of the side groove opening is slightly smaller than the diameter of the engagement pin. By doing so, the engaging pin can be inserted into the side groove only by pushing out, so that reliable position determination can be realized. The presence of the ridge makes a sound in the process of pushing out to signal the condition.

FIG. 1 is a schematic view showing the configuration of an embodiment of the present invention. FIG. 2 is a schematic view showing the decomposition of the embodiment of the present invention. FIG. 3 is a schematic view showing a cross section of a lipstick container. FIG. 4 is a schematic view showing a perspective view of the lipstick container. FIG. 5 is a schematic view showing a cross section of the core tube. FIG. 6 is a schematic view showing a perspective view of the core tube. FIG. 7 is a schematic view showing a cross section of the cover. FIG. 8 is a schematic view showing a perspective view of the cover. FIG. 9 is a schematic view showing the force received by the engaging pin. FIG. 10 is a schematic view showing the structure of the core tube in the second embodiment. FIG. 11 is a schematic view showing the structure of the cover in the second embodiment. FIG. 12 is a schematic view showing the assembly in the second embodiment. FIG. 13 is a schematic diagram showing the structure of still another embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present embodiment is carried out on the premise of the technical plan of the present invention and provides a detailed implementation method and a specific operation process, but the claims of the present invention are not limited to the following examples. ..

Referring to FIGS. 1 and 2, the 100% recyclable and replaceable eco-friendly PET lipstick structure is a circular tubular cover that engages with the bifurcated core tube 1 so as to rotate outward of the core tube 1. 2, a lipstick tube 3 that is slidably engaged with the inside of the core tube 1 in the axial direction, a spiral groove 21 formed in the inner wall of the cover 2, and a guide groove 11 formed along the axial direction of the core tube 1. including.

A protruding engaging pin 31 is provided on the outer surface of the lipstick cylinder 3, and the engaging pin 31 and the lipstick cylinder 3 are integrally molded manufactured by injection molding. See FIGS. 3 and 4.

The engaging pin 31 passes through the guide groove 11 of the core tube 1 and slides and engages with the spiral groove 21 on the inner wall of the cover 2. The outer periphery of the rear end of the core tube 1 is partially a grip portion 12, and the core tube 31 Two ring beads 13 are provided on the outer periphery of the grip portion 12 portion near the rear end of 1, and a ring groove that can rotate with each other is provided on the inner circumference of the portion where the cover 2 and the ring bead 13 of the core tube 1 engage with each other. 22 is properly placed. The core tube 1 and the cover 2 have only one degree of freedom by engaging with the ring groove 22 and the ring bead 13, that is, they can only rotate with each other and do not move along the axial direction. .. At the front end of the ring bead 13 of the core tube 1, there is an elastic arch-shaped spring sheet 14, the base of the spring sheet 14 and the wall portion of the core tube 1 are integrally connected, and the end of the spring sheet 14 jumps up. It protrudes from the surface of the core tube 1, and after the spring sheet 14 is assembled, it is fitted into a groove provided corresponding to the inside of the cover 2 to prevent the core tube 1 and the cover 2 from being separated. To facilitate assembly or disassembly when needed, the outside of the end of the spring seat 14 is designed to have a forward sloping surface structure or double-sided sloping, or human character structure. See FIGS. 5 and 6.

The rotation of the spiral groove 21 is clockwise, and the reason for adopting the clockwise rotation is to adapt to the habit of manipulating the rotation with the right hand by the majority of users. Of course, a small amount of counterclockwise structure can be adopted, but it is necessary to specify in the manual. See FIGS. 7 and 8.

The spiral groove 21 on the inner wall of the cover 2 is a uniformly distributed double screw, the guide groove 11 of the core tube 1 is two symmetrical grooves, and the protruding engagement pin 31 on the outer surface of the lipstick tube 3 Is located in two symmetrical locations corresponding to the two grooves.

A lateral one-step side groove 15 extends to both ends of the guide groove 11, and the direction in which the side groove 15 extends is opposite to the rotation direction of the spiral groove 21. Further, in order to facilitate the assembly of the lipstick tube 3, the front end has a small opening between one side groove 15 and the end of the core tube 1. The opening of the side groove 15 has an arcuate ridge point 16, and the width from the ridge point 16 to the other side of the side groove 15 opening is slightly smaller than the diameter of the engagement pin 31. A narrow gap 17 is provided between the front end of the guide groove 11 and the front end portion of the core tube 1 for easy assembly, and the narrow gap 17 is for easily assembling the engagement pin 31 of the lipstick tube 3 and the core tube 1. Used.

The spiral tilt angle of the spiral groove 21 is 28 °. The magnitude of the angle needs to take into account the speed and resistance of movement, and if the angle is too large, the rotational resistance of the screw will increase and get caught, causing the system to self-lock.

A rectangular or diamond-shaped pattern is provided on the outer periphery of the grip portion 12 at the rear end of the core tube 1. The length of the grip 12 must always be designed to be somewhat shorter in consideration of material savings and space occupancy reduction. However, doing so may affect the acting force of gripping, so by installing a pattern, it is easier to hold the core tube 1 by hand and rotate the core tube 1 and the cover 2 relatively easily. Further, using the combined action force of the spiral groove 21 and the guide groove 11, the lipstick cylinder 3 is pushed and moved to move along the axial direction.

FIG. 9 is a diagram showing the synthesis of the forces received by the engaging pins. In the figure, the inclination angle of the spiral groove 21 is 30 °, that is, the sandwiching angle between the guide groove 11 and the development line of the spiral groove 21 is 60 °. f1 is the thrust of the spiral groove 21 on the cover 2 with respect to the engaging pin 31. f2 is a thrust reverse force with respect to the engaging pin 31 of the guide groove 11 in the core tube 1. Since the surfaces of the engaging pin 31 and the spiral groove 21 are in smooth contact with each other and the surface of the engaging pin 31 and the guide groove 11 are also in smooth contact with each other, the engaging pin 31 and the spiral groove 21 and the engaging pin 31 are also in smooth contact with each other. And the acting force direction of the guide groove 11 always indicate the direction of the surface, that is, it can be determined that the f1 direction is perpendicular to the wall surface of the spiral groove 21 and the f2 direction is perpendicular to the wall surface of the guide groove 11. .. The resultant force of f1 and f2 is f3, and the direction of each force is shown in FIG. The resultant force f3 faces forward, and f3 pushes and moves the engaging pin to move the lipstick tube forward as well.

Twelve reinforcing ribs 32 are uniformly distributed along the axial direction on the inner surface of the lipstick cylinder 3. The reinforcing rib 32 is installed to increase the strength of the lipstick cylinder 3 and at the same time to have a function of preventing the lipstick from slipping out of the lipstick cylinder 3.

All parts of this device including the core tube 1, cover 2 and lipstick tube 3 are manufactured using PET, which is a harmless material of food package grade, and a part of the surface is colorless and transparent or translucent. , Treated with an appropriate matte method. The color of the lipstick is adapted to be clearly visible, easy to identify, harmless, safe and hygienic, so the whole can be recovered and meets the requirements of environmental protection standards. By clearly seeing the colors, the appearance of the product will be improved.

The portion from the middle to the front end of the guide groove 11 is provided with some other side grooves in parallel with the lateral one-step side groove 15 extending to each of the both ends, and the direction in which the some side grooves extend is the front end. It is in the same direction as the side groove 15. Further, there are three ring beads 13 at the rear end of the core tube 1 near the grip portion 12, and each of the three ring beads 13 has a certain distance. See FIG.

There are two ring grooves 22 of the cover 2, and each of the two ring grooves 22 has a constant width. See FIG.

After the three ring beads 13 and the two ring grooves 22 are engaged with each other, a constant axial gap a is provided. The core tube and the cover have a constant relative slide distance along the axial direction by utilizing the gap. When the user holds the grip of the core tube with one hand and the cover with the other hand and rotates them relatively, if at this time the rear of the three ring beads 13 is the trailing edge of the two ring grooves 22 When pressed against, the engagement pin 31 is first inserted into the first side groove and then slightly counter-rotated so that the engagement pin 31 exits the first side groove and rotates forward while being suitable for the cover at the same time. No tensile force is applied, the engagement pin 31 is inserted into the second side groove while jumping over the first side groove and moving forward, and finally follows this discipline until it is inserted into the end side groove. If the engagement pin 31 is selected to be inserted into the second side groove from the beginning, a rotational torque is applied to the cover 2, and a tensile force is applied at the same time as the engagement pin approaches the opening of the first side groove. .. After the engaging pin 31 moves and jumps over the first side groove due to the action of the tensile force, the tensile force stops, that is, it only rotates and is not pulled, so that the engaging pin 31 moves forward and second. Can be inserted into the side groove. Since the positions of the plurality of side grooves can be selected, the user can operate the lipstick tube 3 to extend to an appropriate length at the end of the core tube 1, if necessary. See FIG.

Other structures are the same as in Example 1.

A lid 4 is provided on the outside of the cover 2, and the lid 4 is configured by engaging the front lid 41 and the rear lid 42. Other structures are the same as in Example 1. See FIG.

The spring sheet 14 has one or more openwork structures, and when one spring sheet 14 surrounds the outer side wall of the core tube 1, and when there is more than one spring sheet 14, the outside of the core tube 1. Evenly distributed on the side walls. The openwork structure includes several partitions, the base of the partition located in the middle and the wall portion of the core tube 1 are connected, and the hardness and thickness of the base of the partition located in the middle are larger than those of the other partitions. A protrusion is provided outward at the end of the partition located in the middle, and the protrusion firmly supports the inner side wall of the cover 1. The protrusions become thinner toward the outside, and the shape resembles the back of a cow's horn comb. The bottom of the grip portion 12 is provided with one protruding outer edge, and the protruding outer edge is a position where the ring groove \ ring bead on the outer periphery of the grip portion 12 rotates exactly with the ring bead \ ring groove on the cover 2. It is provided in.

There are three main roles of the partition located in the middle of the spring sheet, the first is the role of fixing the core tube and the cover, and the second is the diameter of the partition located in the middle of the spring sheet is the core tube and others. Since it is larger than the diameter of the part of the core tube, when the core tube fits inside the cover and the grip is rotated by hand, there is no contact or friction between the other part of the core tube wall part and the cover. Therefore, the user feels that the rotational force is small when rotating, which makes it easier to use. Third, the design itself, which has a shape similar to the back of the cow corner comb of the partition located in the middle of the spring seat, This is to reduce the frictional force between the core tube wall and the inner side wall of the cover.

The protruding outer edge has a limiting action, that is, the partition located in the middle of the spring sheet of the core tube fits into the inner side wall of the cover, and further covers the core tube by the limiting action of the outer edge protruding to the grip portion. It can be firmly fixed inside and can be rotated relatively.

As described above, the basic mechanism of the present invention, the main features, and the advantages of the present invention have been shown and described. Those skilled in the art will appreciate that the present invention is not limited to the above embodiments, and the description of the above examples and the specification is for explaining the mechanism of the present invention, and is not deviated from the present invention and the scope of the present invention. It should be understood that various changes and improvements may be made to the present invention, and those changes and improvements are within the scope of the present application. The claims of the present application are limited to the claims of attachment and their equivalents.

1 Core tube 11 Guide groove 12 Grip 13 Ring bead 14 Spring sheet 15 Side groove 16 Ridge point 17 Gap 2 Cover 21 Spiral groove 22 Ring groove 3 Lipstick cylinder 31 Engagement pin 32 Reinforcing rib 4 Lid 41 Front lid 42 Rear lid

Claims (10)

A bifurcated core tube, a circular tubular cover that engages to rotate outward of the core tube, a lipstick tube that engages axially slidably inside the core tube, and an inner wall of the cover. It includes a spiral groove, a guide groove formed along the axial direction of the core tube, and a protruding engaging pin provided on the outer surface of the lipstick tube.
The engaging pin slides and engages with the spiral groove on the inner wall of the cover through the guide groove of the core tube.
A part of the outer periphery of the rear end of the core tube is a grip portion, and at least one ring groove \ ring bead is provided on the outer periphery of the rear end of the core tube near the grip portion, and the cover and the core tube are provided. The ring bead \ the ring groove that can rotate with each other is appropriately arranged on the inner circumference of the portion where the ring bead engages with each other.
The ring groove of the core tube \ The front end portion of the ring bead has an elastic arch-shaped spring sheet, and the base of the spring sheet and the wall portion of the core tube are integrally connected to each other and the end of the spring sheet. The portion jumps outward and protrudes from the surface of the core tube, and the spring sheet is installed corresponding to the inside of the cover in order to prevent the core tube and the cover from separating after being assembled. A 100% recyclable and replaceable eco-friendly PET lipstick structure that fits into the groove. The spiral groove on the inner wall of the cover is a uniformly distributed double thread, the guide groove on the core tube is two symmetrical straight grooves, and a protruding engagement on the outer surface of the lipstick tube. The 100% recyclable and replaceable eco-friendly PET lipstick structure according to claim 1, wherein the helix is located in two symmetrical locations corresponding to two straight grooves. A lateral one-step side groove extends to both ends of the guide groove, and the direction in which the side groove extends is opposite to the rotation direction of the connected guide groove, and is formed in the opening of the side groove. 1 or 2, wherein has an arcuate ridge, and the width from the ridge to the other side of the opening of the side groove is slightly smaller than the diameter of the engagement pin. Eco-friendly PET lipstick structure that is 100% recyclable and replaceable. The 100% recyclable and replaceable eco-friendly PET lipstick structure according to claim 3, wherein the spiral inclination angle of the spiral groove is 25 ° to 35 °. The protruding engagement pin and the lipstick cylinder have an integrally molded structure manufactured by injection molding, and the cover, the core tube and the lipstick cylinder are all manufactured using a food package grade harmless material PET and have a surface surface. A 100% recyclable, replaceable, environmentally friendly PET lipstick according to claim 4, characterized in that a portion of the lipstick is treated by a matte method to make it colorless and transparent or translucent. Construction. The 100% recyclable and replaceable according to claim 5, wherein the outer periphery of the rear end of the core tube is partly the grip portion, and the outer periphery of the grip portion is provided with a rectangular or diamond-shaped pattern. Possible eco-friendly PET lipstick structure. The 100% recyclable and replaceable eco-friendly PET lipstick structure according to claim 6, wherein a plurality of reinforcing ribs are provided on the inner surface of the lipstick cylinder along the axial direction. The portion from the middle to the front end of the guide groove is provided with some other side grooves in parallel with the lateral one-step side groove extending at both ends, and the direction in which some of the side grooves extend is the front end. There are three ring beads at the rear end of the core tube which are in the same direction as the side groove of the above and near the grip portion, and each of the three ring beads has a certain distance. The cover has two ring grooves, each having a constant width between the two ring grooves, and a constant axial gap after the three ring beads and the two ring grooves are engaged. The 100% recyclable and replaceable according to claim 7, wherein the core tube and the cover can have a constant relative slide distance along the axial direction by utilizing the gap. Eco-friendly PET lipstick structure. The 100% recyclable and replaceable environment according to claim 7, wherein a lid is provided on the outside of the cover, and the lid is configured by engaging the front lid and the rear lid. Gentle PET lipstick structure. The spring sheet has one or more openwork structures, and when there is one spring sheet, it surrounds the outer side wall of the core tube, and when there is more than one spring sheet, the core tube has. Evenly distributed on the outer side wall, the openwork structure contains several partitions, the base of the partition located in the middle and the wall of the core tube are connected, and the hardness and thickness of the base of the partition located in the middle. Is larger than the other partitions, and the end of the partition located in the middle is provided with an outward protrusion, the protrusion firmly supports the inner side wall of the cover, and the protrusion is outward. The thickness becomes thinner, the shape resembles the back of a cow's horn comb, the bottom of the grip is provided with one protruding outer edge, and the protruding outer edge is the ring on the outer periphery of the grip. The 100% recyclable and replaceable eco-friendly PET according to claim 1, wherein the ring bead is provided at a position just rotating with the ring bead on the cover. Lipstick structure.

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