Lifting mechanism for stick-type products and stick-type container equipped therewith

Abstract

The present invention provides a lifting mechanism for stick-type products and a stick-type container equipped therewith, which have a structure that can be easily assembled and reduce manufacturing costs. [Solution] The device comprises a support portion 210 and a gear shaft, the support portion 210 being configured to support a stick material on its upper part and move along the vertical direction. The gear shaft comprises a holder member formed to extend downward from the lower surface of the support portion 210, a connector body 310, a bridge 330, and a fixing ring 350, the connector body 310 having an internal connector space opening at the top and bottom, with its upper ends exposed on the left and right sides to form an exposed rim, the bridge 330 extending upward from the top of the connector body 310 on the front and rear sides respectively, and the fixing ring 350 being formed on the top of the bridge 330 at a position away from the exposed rim.

Description

Technical Field

[0001] The present invention relates to a container for stick-type products, and more particularly, to an elevating mechanism that is easy to assemble and a stick-type container provided with the same.

Background Art

[0002] A stick-type product refers to a product that uses a stick material obtained by solidifying a composition containing necessary components in a solid form. A stick container for this purpose generally stores most of the stick material inside the container, but is provided with a structure that allows a user to operate it so that only a part of it is exposed outside as needed. That is, when using a stick-type product, the exposed upper part of the stick material is consumed, the upper part of the stick material wears out and gradually decreases in height, and the stick container moves the stick material higher so that the stick material can be maintained in an exposed state. An example of a structure for this purpose is disclosed in Korean Registered Patent Publication No. 10-1760637. In recent years, in addition to cosmetics such as lipsticks and lip balms, products for various applications such as deodorants, stick glues, and ointments are provided in stick form.

[0003] Stick-type products are portable and used. In particular, products such as lipsticks and lip balms must have a size suitable for the lips of general consumers, so they are manufactured in a fairly small size. Since a fairly complex structure for raising and lowering the stick material should be embodied in a small-sized product, high precision is required for the manufacture of an elevating mechanism for stick-type products and a stick-type container provided with the same.

Prior Art Documents

Patent Documents

[0004] Korean Registered Patent Publication No. 10-1760637

Summary of the Invention

Problems to be Solved by the Invention

[0005] Therefore, the present invention was derived to solve the above-mentioned problems, and the object of the present invention is to provide a lifting mechanism and a stick-type container equipped therewith that have a structure that can be easily assembled and can reduce manufacturing costs.

[0006] Other objects of the present invention will become more clear based on the embodiments described below. [Means for solving the problem]

[0007] To achieve the above objectives, a lifting mechanism for a stick-type product according to one aspect of the present invention may include a support member and a gear shaft, wherein the support member is configured to support a stick material on its upper part and move along the longitudinal direction, and the gear shaft includes a holder member formed to extend downward from the lower surface of the support member, and a connector body, a bridge and a retaining ring, wherein the connector body has a hollow connector space formed inside that opens to the top and bottom, and its upper ends are exposed on the left and right sides to form exposed rims, the bridge extends upward from the top of the connector body on the front and rear sides, respectively, and the retaining ring is formed on the top of the bridge, at a position away from the exposed rim, has an annular shape, and is configured to form a restraining hole inside through which the gear shaft passes, and at least a portion of the screw socket member is inserted into the connector space, has a hollow screw space formed inside that opens to the top and bottom, and has a locking projection that protrudes outward on its upper part.

[0008] The lifting mechanism for a stick-type product according to the present invention may include one or more of the following embodiments. For example, the upper part of the connector body may have a clearance groove, the clearance groove may extend downward from the upper end of the connector body to a predetermined depth, and the clearance groove may be formed between the portion where the exposed rim is formed and the portion where the bridge is formed.

[0009] The lifting mechanism may further include a shell member that extends along the vertical direction, is hollow inside, and forms an internal shell space that opens to the top and bottom. In this case, the support portion may be configured to move along the vertical direction within the shell space, an engagement hole may be formed on one side of the shell member, and an engagement projection may be formed on the side of the connector body, configured to be inserted into the engagement hole, the engagement projection having an inclined surface at its upper part and a stepped jaw at its lower part.

[0010] A clearance groove may be formed on one side of the shell member, and the clearance groove may extend downward from a predetermined position below the engagement hole to the lower end of the shell member. On the other hand, a guide groove may be formed on the other side of the shell member, and the guide groove may extend downward from a predetermined position to the lower end of the shell member.

[0011] An inclined surface can be formed on the upper inner side of the above-mentioned fixing ring, which connects to the above-mentioned restraint hole.

[0012] The distance between the inner surfaces of the bridge located on the front and rear sides of the connector body may be set to be greater than or equal to the outer diameter of the locking projection.

[0013] A screw thread can be formed in the upper part of the screw space, and the screw socket member can be configured to allow elastic deformation in the portion where the screw thread is formed.

[0014] Another aspect of the present invention can provide a stick-type container including a lifting mechanism for the above-described stick-type product. [Effects of the Invention]

[0015] The means for solving the problems of the present invention as described above can be expected to have various effects, including the following. However, the present invention is not established only when all of the following effects are achieved.

[0016] A lifting mechanism and a stick-type container equipped therewith according to one embodiment of the present invention can be easily assembled and manufacturing costs can be reduced. [Brief explanation of the drawing]

[0017] [Figure 1] This is a perspective view illustrating an exemplary lifting mechanism for a stick-type product according to one embodiment of the present invention. [Figure 2] Figure 1 is a cross-sectional view illustrating the lifting mechanism shown in the diagram. [Figure 3] Figure 1 is an exploded perspective view illustrating the lifting mechanism shown. [Figure 4] Figure 1 is a perspective view illustrating the shell member of the lifting mechanism shown. [Figure 5] Figure 1 is a perspective view illustrating an exemplary holder member of the lifting mechanism. [Figure 6] This figure illustrates the connector members of the lifting mechanism shown in Figure 1. [Figure 7] Figure 1 is a perspective view illustrating an exemplary screw socket member of the lifting mechanism. [Figure 8] This figure exemplifies the assembled state of the holder member, connector member, and screw socket member of the lifting mechanism shown in Figure 1. [Modes for carrying out the invention]

[0018] Since the present invention can be subjected to various transformations and can have multiple embodiments, specific embodiments will be illustrated in the drawings and described in detail in the detailed description. However, this is not intended to limit the present invention to specific embodiments, and it should be understood to include any transformations, equivalents or alternatives included in the spirit and technical scope of the present invention. In describing the present invention, if it is determined that a specific description of related known technologies obscures the gist of the present invention, the detailed description thereof will be omitted.

[0019] The terms used in this application are merely used to describe specific embodiments and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this application, terms such as "comprising" or "having" are only intended to specify the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, and do not pre-exclude the presence or possibility of addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof. It should be understood.

[0020] Terms such as first, second, etc. can be used to describe various components, but the components should not be limited by the terms. The terms are only used for the purpose of distinguishing one component from another.

[0021] For the sake of clarity, this specification uses terms such as "inside," "outside," "front," "rear," "left," "right," "upper," and "lower." In the following description, "inside" refers to the side closer to the interior of the lifting mechanism 1000, and "outside" refers to the side further away from the interior of the lifting mechanism 1000. "Front," "rear," "left," "right," "upper," "lower," and "vertical direction" are based on Figure 8(a), assuming that the part where the engaging projection 320 is formed is the front of the lifting mechanism 1000 and that the screw socket member 400 is facing downwards. Of course, when actually using the lifting mechanism 1000 according to one embodiment of the present invention, the directions mentioned herein may not coincide with the actual directions.

[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the attached drawings. When describing with reference to the attached drawings, the same or corresponding components will be given the same reference number regardless of the reference numerals in the drawings, and redundant descriptions thereof will be omitted.

[0023] Figures 1, 2, and 3 are illustrative perspective views, cross-sectional views, and exploded perspective views, respectively, of a lifting mechanism 1000 for a stick-type product according to one embodiment of the present invention. Figures 4 to 7 show in more detail the shell member 100, holder member 200, connector member 300, and screw socket member 400 of the lifting mechanism 1000 shown in Figure 1, respectively, while Figure 8 shows the holder member 200, connector member 300, and screw socket member 400 of the lifting mechanism 1000 assembled.

[0024] A stick-type container according to one embodiment of the present invention is a container for housing and making available to the user a stick-type material (not shown) such as lipstick or lip balm. The stick-type container uses a lifting mechanism 1000 to allow a holder member 200 that supports the stick-type material (not shown) to move longitudinally from inside the shell space 105 of the shell member 100. The stick-type container according to one embodiment of the present invention may further include a lower case (not shown) and an overcap (not shown) that house the lifting mechanism 1000 inside. Of course, in some embodiments, the stick-type container can be completed simply by filling the lifting mechanism 1000 with the stick-type material (not shown). Referring to Figures 1 to 8, the lifting mechanism 1000 for a stick-type product according to one embodiment of the present invention may broadly include a shell member 100, a holder member 200, a connector member 300, and a screw socket member 400.

[0025] The shell member 100 can extend along the vertical direction, and a shell space 105 opening at the top and bottom is formed inside the shell member 300. The holder member 200, which is raised and lowered by the lifting mechanism 1000, and the stick material (not shown) supported on it move along the vertical direction within the shell space 105. The shell body 110, which is the main part of the shell member 100, can have a hollow cylindrical shape with the entire interior empty, and the shell space 105 can be formed inside it. When the stick-type container is used as a lipstick container or the like, the top of the shell body 110 can have a shape cut along a sloping plane, and various other design elements can be incorporated to provide a beautiful appearance.

[0026] Figure 4(a) shows the front view of the shell member 100, and Figure 4(b) shows the back view of the shell member 100. As shown in Figure 4(a), an engagement hole 120 can be formed on one side of the shell body 110, which is the main part of the shell member 100. The engagement hole 120 can be formed, for example, on the lower part of one side of the shell body 110, and the engagement projection 320 of the connector member 300 can be inserted into the engagement hole 120.

[0027] In the shell body 110, a clearance groove 122 can be formed below the engagement hole 120. The clearance groove 122 can extend downward from a predetermined position below the engagement hole 120 to the lower end of the shell body 110, and its lower part can be formed in a shape that widens downward. The positioning of the clearance groove 122 below the engagement hole 120 causes the portion of the shell body 110 below the engagement hole 120 to have a shorter length in the longitudinal direction, which allows elastic deformation to occur more easily when the engagement projection 320 of the connector member 300 enters the engagement hole 120, thereby allowing the engagement projection 320 to enter more easily.

[0028] As shown in Figure 4(b), a guide groove 126 can be formed on the other side of the shell body 110. The guide groove 126 can be formed, for example, on the lower part of the other side of the shell body 110, into which the guide projection 326 of the connector member 300 can be inserted. The guide groove 126 can extend downward from a predetermined position on the shell body 110 to the lower end of the shell body 110, and its lower part can be formed in a shape that widens downward. The guide groove 126 and the guide projection 326 can help align and engage the connector member 300 with the shell member 100. On the other hand, the formation of the guide groove 126 on the other side of the shell body 110 makes elastic deformation more easily occurring on one side of the shell body 110, which makes it easier for the engaging projection 320 to pass over the shell body 110 below the engaging hole 120 on one side of the shell body 110.

[0029] The holder member 200 is the part that directly supports the stick material (not shown) corresponding to the contents of the stick-shaped container. The lifting mechanism 1000 according to one embodiment of the present invention allows adjustment of the degree to which the stick material (not shown) is exposed at the top of the shell member 100 by raising and lowering the holder member 200 inside the shell member 100. Figure 5 is an illustrative perspective view of the holder member 200 of the lifting mechanism 1000 shown in Figure 1. As shown in Figure 5, the holder member 200 basically includes a support part 210 and a gear shaft 230.

[0030] The support portion 210 is the part that supports the stick material (not shown). As shown in Figure 2, the support portion 210 is embodied in a cup shape that opens upward, and a holder space 205 can be formed inside it. With the stick material (not shown) supported, the support portion 210 moves along the vertical direction from inside the shell space 105 of the shell member 100. Multiple contact protrusions 212 can also be formed on the outer circumferential surface of the support portion 210 so that the support portion 210 can move smoothly within the shell space 105. The contact protrusions 212 can prevent large frictional forces from being generated between the support portion 210 and the shell body 110.

[0031] The support portion 210 can accommodate a stick material (not shown), for example, the lower end of the stick material (not shown) can be accommodated in a cup-shaped inner holder space 205. One or more fixing protrusions 222 can be formed on the inside of the support portion 210 facing the holder space 205, which can prevent the stick material (not shown) from detaching from the support portion 210. In the figure, the support portion 210 is depicted as having a cup shape that forms the holder space 205 on its inside, but the support portion 210 can be embodied in various forms as long as it can support the stick material (not shown) on it.

[0032] The gear shaft 230 can extend downward from the lower surface of the support portion 210. The gear shaft 230 interacts with the screw socket member 230 to enable longitudinal movement of the holder member 200. As shown in Figure 5, the gear shaft 230 may include a shaft body 232 extending longitudinally, a gear cog 234 formed on the shaft body 232, and a stopper projection 236.

[0033] The shaft body 232 can extend downward from the lower surface of the support portion 210 and can be inserted into the screw space 405 of the screw socket member 400 by passing through the restraint hole 305 of the connector member 300, as shown in the example in Figure 2. The shaft body 232 may have a non-circular cross-section, and the restraint hole 305 of the connector member 300 may have a shape corresponding to the cross-section of the shaft body 232. Since the cross-section of the shaft body 232 and the shape of the restraint hole 305 are not circular, the restraint hole 305 of the connector member 300 does not allow rotation of the shaft body 232.

[0034] A gear cog 234 formed on the shaft body 232 may be configured to engage with a thread 434 formed in the screw space 405 of the screw socket member 400. If the cross section of the shaft body 232 is formed to be longer in a particular direction, as in the example shown in the figure, the gear cog 234 may be formed on both sides with respect to that direction. When the screw socket member 400 is rotated by the user, the restraining hole 305 of the connector member 300 does not allow the shaft body 232 to rotate, so the gear cog 234 moves along the thread 434 in the screw space 405, thereby causing the entire holder member 200 to move along the longitudinal direction in the manner of a lead screw. In the example shown in the figure, the gear cog 234 is formed on the shaft body 232 and the thread 434 is formed in the screw space 405, but it is also possible to form the thread on the shaft body 232 and the gear cog in the screw space 405. In this case, a structural modification may be required to prevent the holder member 200 from rotating relative to the screw socket member 400.

[0035] The stopper projection 236 formed on the shaft body 232 can serve to prevent the holder member 200 from moving excessively upward and detaching from the connector member 300 and the screw socket member 400. If the cross section of the shaft body 232 is formed to be longer in a particular direction, as in the example shown in the figure, the gear cog 234 can be formed on one side or both sides with respect to the direction in which the cross section of the shaft body 232 is formed to be shorter. The screw socket member 400 can be rotated by the user to move the holder member 200 upward, and if the user unintentionally rotates the screw socket member 400 excessively and the holder member 200 reaches the highest acceptable position, the stopper projection 236 will catch on the lower surface of the retaining ring 350 of the connector member 300. Since the stopper projection 236 cannot pass through the restraint hole 305 in this way, the holder member 200 can not move further upward and detachment can be prevented.

[0036] As shown in Figure 5, the stopper projection 236 can have a very gentle slope on its lower side and a stepped jaw on its upper side. This shape allows the gear shaft 230, including the stopper projection 236, to pass through the restraint hole 305 relatively easily when moving downward for assembly of the lifting mechanism 1000, but prevents it from passing through the restraint hole 305 when moving upward during use of the lifting mechanism 1000. The length and position of the stopper projection 236 can be designed such that the length from the stepped jaw on the upper side of the stopper projection 236 to the lower end of the shaft body 232 is greater than or equal to the distance from the lower surface of the fixing ring 350 to the upper end of the screw socket member 400. Thus, with the stepped jaw on the upper side of the stopper projection 236 hooked onto the lower surface of the fixing ring 350, the lower end of the shaft body 232 can still be located within the screw space 405 of the screw socket member 400, and the holder member 200 can move downward again when the user rotates the screw socket member 400 in the opposite direction.

[0037] The connector member 300 is the part that connects the shell member 100 and the screw socket member 400, and maintains a state in which they are connected in a relative rotatable manner. Figure 6 is an illustrative diagram of the connector member 300 of the lifting mechanism 1000 shown in Figure 1, where Figure 6(a) shows the front view of the connector member 300 and Figure 6(b) shows the rear view of the connector member 300. Figure 6(c) is a cross-sectional view of the connector member 300 as seen from the front or rear. Referring to Figure 6, the connector member 300 includes a connector body 310, a bridge 330, and a fixing ring 350.

[0038] The connector body 310 can form the main part of the connector member 300, and is hollow inside, forming a connector space 315 that opens at the top and bottom. Since the connector member 300 itself is not a part that rotates relative to the shell member 100, the connector body 310 does not necessarily have to be cylindrical in shape. However, since the screw socket member 400 inserted into the connector space 315 is a rotating part, the connector space 315 can also have a circular cross-section. The connector body 310 can have a shape in which its diameter gradually and / or stepwise decreases as it faces upward, corresponding to the insertion portion 410 of the screw socket member 400 inserted inside it.

[0039] A base stepped jaw 312 can be formed at the lower end of the connector body 310. When the connector body 310 is inserted into the lower part of the shell space 105, the lower end of the shell body 310 can seat on the base stepped jaw 312. On the other hand, a fixing groove 322 can be formed on the lower part of one side of the connector body 310. The fixing groove 322 can be formed below the engaging projection 320, and the outer circumferential surface of the connector body 30 can be formed in a shape that is recessed inward. In the part where the fixing groove 322 is formed, the base stepped jaw 312 can also be omitted. When the shell member 100 is coupled to the connector member 300, the clearance groove 122 of the shell body 110 can overlap with the fixing groove 322 of the connector body 310, which can be used to align and / or engage the lifting mechanism 1000 with a member such as a lower case (not shown) or an overcap (not shown).

[0040] A bridge 330 can be formed on a portion of the upper part of the connector body 310, and the upper end of the connector body 310 can be exposed on the remaining portion to form an exposed rim 314. For example, in the connector member 300, if the portion on which the engaging projection 320 is formed is considered to be the front of the connector member 300, then on the front and rear sides of the connector body 310, a bridge 330 can be formed on the upper part of the connector body 310, and the exposed upper end can be connected to the bridge 330 without being formed. On the left and right sides of the connector body 310, no bridge 330 can be formed, and an exposed rim 314 can be formed.

[0041] As shown in Figure 6(c) and Figure 8(b), the exposed rim 314 can protrude slightly inward compared to the rest of the connector body 310, and the lower part of its inner surface can be formed at an angle. The exposed rim 314 is configured to catch on the screw socket member 400 and can be used to engage the screw socket member 400 with the connector member 300.

[0042] On the other hand, at the upper part of the connector body 310, a clearance groove 335 can be formed between each bridge 330 and each exposed rim 314. The clearance groove 335 of the connector body 310 can extend downward from the upper end of the connector body 310 to a predetermined depth.

[0043] Referring to Figure 6(a), an engaging projection 320 can be formed on one side of the connector body 310, and when the shell member 100 and the connector member 300 engage, the engaging projection 320 can be inserted into the engagement hole 120 of the shell member 100. The engaging projection 320 may have an inclined surface at its upper part and a stepped jaw at its lower part. Such a shape allows the engaging projection 320 to pass relatively easily through the lower part of the shell body 110 below the engagement hole 120 when the connector member 300 is inserted into the shell member 100 for assembly, and prevents the engaging projection 320 from disengaging from the engagement hole 120 after it has been fully inserted. The engaging projection 320 and the engagement hole 120 can serve to engage the connector member 300 with respect to the shell member 100 in a manner that prevents rotation relative to it.

[0044] Referring to Figure 6(b), a guide projection 326 can be formed on the other side of the connector body 310, and when the shell member 100 and the connector member 300 engage, the guide projection 326 can be inserted into the guide groove 126 of the shell member 100 described above. The guide projection 326 can have a shape corresponding to the guide groove 126 and, like the guide groove 126, can extend downward from a predetermined position on the connector body 310 to the lower end of the connector body 310. The guide projection 326 can assist in the engagement and alignment of the shell member 100 and the connector member 300, and is particularly useful in engaging the connector member 300 with respect to the shell member 100 in a manner that prevents rotation relative to it.

[0045] The bridge 330 extends upward from the top of the connector body 310 on one and the other side of the connector body 310, connecting the connector body 310 and the retaining ring 350. The outer and inner surfaces of the bridge 330 can extend from the outer and inner surfaces of the connector body 310, respectively.

[0046] The retaining ring 350 is formed on the upper part of the bridge 330 and can be formed at a position spaced apart from the exposed rim 314 with respect to the longitudinal direction, as shown in Figure 6, or at a position spaced apart from the upper end of the screw socket member 400, as shown in Figures 2 and 8. The retaining ring 350 may have an annular shape, and a restraining hole 305 can be formed inside it, configured for the gear shaft 230 to pass through. The restraining hole 305 is formed for the shaft body 232 to pass through, and the connector space 315 is formed to accommodate the screw socket member 400, so the size of the restraining hole 305 and the retaining ring 350 may be smaller than the size of the connector space 315 and the connector body 310, respectively.

[0047] An inclined surface 352 connected to the restraint hole 305 can be formed on the upper inner side of the fixing ring 350. The inclined surface 352 can be formed, for example, so as to face the restraint hole 305 on the front and rear sides of the restraint hole 305, and can have a shape corresponding to the cross-section of the shaft body 232 in which the restraint hole 305 is formed to be elongated along the left-right direction.

[0048] The screw socket member 400 can be rotatably coupled to the connector member 300 and can be rotated by the user when it is necessary to raise or lower a stick material (not shown). Figure 7 is an illustrative perspective view of the screw socket member 400 of the lifting mechanism 1000 shown in Figure 1. As shown in Figure 7, the screw socket member 400 may basically include an insertion part 410 and an operating part 420, and a screw space 405 may be formed inside the entire or partial screw socket member 400, as shown in Figure 2.

[0049] The insertion portion 410 is the part of the connector member 300 that is inserted into the connector space 315. The screw socket member 400 is a component that rotates relative to the shell member 100, the holder member 200, and the connector member 300, and the insertion portion 410, which is inserted into the connector space 315, preferably has a circular or nearly circular cross-section overall. On the other hand, the diameter of the insertion portion 410 may gradually and / or stepwise decrease as it faces upward. Such a shape prevents the difference in diameter between the upper and lower parts of the insertion portion 410 from becoming excessively large, even if the locking projection 414 protrudes outward from the upper part of the insertion portion 410.

[0050] A flange 412 may be provided on the insertion portion 410. When the screw socket member 400 is inserted into the connector member 300, the lower end of the connector body 310 can be seated on the flange 412.

[0051] A locking projection 414 may be provided at the upper end of the insertion portion 410. The locking projection 414 may protrude outward from the upper part of the insertion portion 410 and have an overall ring shape. As shown in Figure 7, the locking projection 414 may have an inclined surface on the outer side of its upper part and a stepped jaw on its lower surface. The length of the locking projection 414 that protrudes outward can be designed to overlap the exposed rim 314 of the connector member 300 but not to contact the bridge 330.

[0052] The operating section 420 is located below the connector member 300 and is rotated by the user. As mentioned above, the lifting mechanism 1000 shown in the figure can be housed in a separate lower case (not shown) and the user does not have to directly rotate the operating section 420 of the screw socket member 400. Multiple grip protrusions 424 can be formed on the outer circumferential surface of the operating section 420. The grip protrusions 424 make it easier to rotate the operating section 420. The grip protrusions 424 may be inserted into corresponding slots in the lower case (not shown) or may be gripped directly by the user. The operating section 420 may also be provided with a flange 422. When the screw socket member 400 is inserted into the lower case (not shown) or the like, the flange 422 can seat the screw socket member 400 in place.

[0053] A screw space 405 can be formed inside the screw socket member 400, and threads 434 can be formed on the inner circumferential surface of the screw space 405. As described above, the gear cog 234 formed on the gear shaft 230 of the holder member 200 interacts with the threads 434 of the screw space 405, thereby enabling the holder member 200 to move along the longitudinal direction in the manner of a lead screw.

[0054] In one embodiment of the present invention, the threads 434 can be formed at a predetermined position in the upper part of the screw space 405, and the screw socket member 400 can be configured to allow elastic deformation of the portion in which the threads 434 are formed. Such a structure allows the holder member 200 to be coupled to the screw socket member 400 simply by pressing the gear shaft 230 downward, so that when the gear shaft 230 of the holder member 200 is inserted into the screw space 405, the gear cog 234 does not rotate to move along the threads 434, but rather the threads 434 move on both sides of the gear cog 234 due to the elastic deformation of the screw socket member 400.

[0055] The following describes in more detail the process of assembling and using the lifting mechanism 1000 according to one embodiment of the present invention.

[0056] When manufacturing a lifting mechanism 1000 according to one embodiment of the present invention, first, a shell member 100, a holder member 200, a connector member 300, and a screw socket member 400 can be manufactured. The support portion 210 of the holder member 200 can be provided with a stick material (not shown) corresponding to the contents of a stick-type product. The manufacturer or manufacturing apparatus can first insert the screw socket member 400 into the connector space 315 of the connector member 300.

[0057] The manufacturer or manufacturing apparatus can move the screw socket member 400 from below to above the connector member 300 to insert the insertion portion 410 into the connector space 315. As the screw socket member 400 is inserted further, the inner diameter of the connector space 315 begins to become smaller than the outer diameter of the locking projection 414. However, the clearance groove 335 formed in the connector body 310 causes slight elastic deformation in the upper part of the connector body 310, allowing the connector body 310 to expand and allow the locking projection 414 to pass through. When the screw socket member 400 is inserted to the designated position, the locking projection 414 moves onto the exposed rim 314, the connector body 310 returns to its original state, and the lower surface of the locking projection 414 contacts the upper surface of the exposed rim 314. This allows the screw socket member 400 to be rotatably coupled to the connector member 300.

[0058] Next, the manufacturer or manufacturing apparatus can connect the holder member 200 to the connector member 300 and the screw socket member 400.

[0059] The manufacturer or manufacturing apparatus can move the holder member 200 from top to bottom on the connector member 300 to insert the gear shaft 230 into the restraint hole 305 of the connector member 300. Since the restraint hole 305 is formed to correspond to the shape and size of the gear shaft 230, the restraint hole 305 as a whole does not obstruct the entry of the gear shaft 230 when the gear shaft 230 is aligned in the correct direction. The stopper projection 236 at the bottom of the gear shaft 230 has a gentle slope, so it can pass through the restraint hole 305 without much force, and after passing through, the stepped jaw at the top of the stopper projection 236 prevents it from being easily separated from the restraint hole 305.

[0060] The manufacturer or manufacturing apparatus may move the holder member 200 further down until the gear cog 234 of the gear shaft 230 engages with the threads 434 of the screw space 405. From the moment the gear cog 234 engages with the threads 434, the manufacturer or manufacturing apparatus rotates the holder member 200 while the screw socket member 400 is fixed, allowing the gear cog 234 to move down in accordance with the threads 434. In this case, the connector member 300 is rotatably coupled to the screw socket member 400 and can rotate together with the rotation of the holder member 200. The locking projection 414 of the screw socket member 400 rotates on the exposed rim 314 but is sized not to contact the bridge 330 and does not hinder the rotation of the connector member 300.

[0061] In some embodiments of the present invention, the upper part of the screw socket member 400 may be configured to allow slight elastic deformation. In this case, the manufacturer or manufacturing apparatus can press the holder member 200 downward even after the gear cog 234 of the gear shaft 230 has reached the thread 434 of the screw space 405. The upper part of the screw socket member 400 can be elastically deformed along a specific direction, and the multiple gear cog 234 can pass the thread 434 along the longitudinal direction, with the connector member 300 also being elastically deformed together with the clearance groove 335.

[0062] By the method described above, once the holder member 200 is inserted to the specified position, the assembly of the holder member 200, the connector member 300, and the screw socket member 400 shown in Figure 8 can be completed.

[0063] Next, the manufacturer or manufacturing apparatus can connect the shell member 100 to the connector member 300.

[0064] The manufacturer or manufacturing apparatus can insert the holder member 200 into the shell space 105 of the shell member 100 by moving the shell member 100 from top to bottom of the connector member 300 with the engaging projection 320 and guide projection 326 roughly aligned in the engaging hole 120 and guide groove 126, respectively. With the holder member 200 and connector member 300 mostly inserted into the shell space 105, the guide projection 326 is first inserted into the guide groove 126, and since the lower part of the guide groove 126 has a shape that widens downwards, the guide projection 326 is naturally guided into the guide groove 126. As the guide projection 326 is inserted into the guide groove 126, the engaging projection 320 can be aligned in the engaging hole 120, and furthermore, since the clearance groove 122 below the engaging hole 120 also has a shape that widens downwards at its lower part, the engaging projection 320 is also guided in the direction of the engaging hole 120.

[0065] Although the engaging projection 320 protrudes outward, elastic deformation occurs in the lower part of the shell body 110 due to the clearance groove 122 on one side and the guide groove 126 on the other side, allowing the shell body 110 to expand and pass the engaging projection 320. When the shell member 100 is inserted to the specified position, the lower surface of the engaging projection 320 comes into contact with the lower part of the engaging hole 120. Since the engaging hole 120 surrounds the engaging projection 320 from all sides, the shell member 100 and the connector member 300 can maintain a firm engagement. As a result, the shell member 100 can engage with the connector member 300 in a non-rotating manner, and the lifting mechanism 1000 shown in Figures 1 and 2 can be completed. As described above, the lifting mechanism 1000 may be mounted inside another lower case (not shown) and an overcap (not shown).

[0066] As described above, once the shell body 110 surrounds the connector body 310, the connector body 310 can no longer expand, even though the clearance groove 335 is formed. In this state, no elastic deformation occurs in either the connector member 300 or the screw socket member 400. The gear cog 234 cannot move beyond the screw threads 434 along the longitudinal direction, and the locking projection 414 of the screw socket member 400 cannot enter the connector space 315 again. Therefore, the holder member 200, the connector member 300, and the screw socket member 400 can all maintain a very strong connection with one another.

[0067] The lifting mechanism 1000 for a stick-type product and the stick-type container equipped therewith according to one embodiment of the present invention described above are configured to be assembled in a very simple manner. The screw socket member 400 can be coupled to the connector member 300 by simply inserting it into the connector space 315 along the longitudinal direction, the holder member 200 can also be coupled to the connector member 300 by simply inserting the gear shaft 230 into the restraint hole 305 and the connector space 315 along the longitudinal direction, and the shell member 100 can also be coupled to the connector member 300 by inserting the connector member 300 into the shell space 105 along the longitudinal direction. This allows for the construction of a somewhat complex structure by assembling small parts in a very simple manner, enabling mass production through automation and providing the effect of lowering overall manufacturing costs.

[0068] Although the above has been described with reference to one embodiment of the present invention, a person with ordinary skill in the art will understand that the present invention can be modified and altered in various ways without departing from the spirit and scope of the invention as described in the following claims. [Explanation of Symbols]

[0069] 1000: Lifting mechanism for stick-type products 100: Shell component 200: Holder component 300: Connector component 400: Screw socket component

Claims

1. The device comprises a support portion and a gear shaft, wherein the support portion supports a stick material on its upper part and is configured to move along the vertical direction, and the gear shaft has a holder member formed to extend downward from the lower surface of the support portion, A connector member comprising a connector body, a bridge, and a retaining ring, wherein the connector body is hollow and forms an internal connector space opening at the top and bottom, with its upper ends exposed on the left and right sides to form an exposed rim, the bridge extends upward from the top of the connector body on the front and rear sides, respectively, and the retaining ring is formed on the top of the bridge, at a position away from the exposed rim, has an annular shape, and is configured to form an internal restraint hole through which the gear shaft passes, A lifting mechanism for a stick-type product, comprising: a screw socket member, at least a portion of which is inserted into the connector space, forming an internally hollow screw space with openings at the top and bottom, and having a locking projection projecting outward at its upper end.

2. A lifting mechanism for a stick-type product according to claim 1, wherein a clearance groove is formed in the upper part of the connector body, the clearance groove extends downward from the upper end of the connector body to a predetermined depth, and the clearance groove is formed between the portion where the exposed rim is formed and the portion where the bridge is formed.

3. It further includes a shell member that extends along the vertical direction, is hollow inside, and forms an internal shell space that opens at the top and bottom, The support portion is configured to move along the vertical direction within the shell space, An engagement hole is formed on one side of the shell member. A lifting mechanism for a stick-type product according to claim 1, wherein an engaging projection is formed on the side of the connector body, configured to be inserted into the engaging hole, and the engaging projection has an inclined surface at its upper part and a stepped jaw at its lower part.

4. A lifting mechanism for a stick-type product according to claim 3, wherein a clearance groove is formed on one side of the shell member, and the clearance groove extends downward from a predetermined position below the engagement hole to the lower end of the shell member.

5. A lifting mechanism for a stick-type product according to claim 3, wherein a guide groove is formed on the other side of the shell member, and the guide groove extends downward from a predetermined position to the lower end of the shell member.

6. A lifting mechanism for a stick-shaped product according to claim 1, wherein an inclined surface connected to the restraint hole is formed on the upper inner side of the fixing ring.

7. The lifting mechanism for a stick-type product according to claim 1, wherein the distance between the inner surfaces of the bridge located on the front and rear sides of the connector body is set to be greater than or equal to the outer diameter of the locking projection.

8. A lifting mechanism for a stick-type product according to claim 1, wherein a screw thread is formed in the upper part of the screw space, and the screw socket member allows elastic deformation in the portion where the screw thread is formed.

9. A stick-type container equipped with a lifting mechanism for a stick-type product according to any one of claims 1 to 8.

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