Ejaculation promotion device and inner cylinder part

Abstract

To provide an ejaculation promotion device capable of enhancing feelings of a hollow part of a massage body part.SOLUTION: An ejaculation promotion device 10 is provided with a cylindrical massage body part 12 with an insertion opening 45 provided at one end. The massage body part 12 includes a cylindrical outer cylinder part 30 located on an outer side, and an inner cylinder part 40 provided on an inner side of the outer cylinder part 30 to form a hollow part 43 into which a penis is inserted. The outer cylinder part 30 has higher flexibility and shape maintenance property than the inner cylinder part 40, and the inner cylinder part 40 has higher lubricity than the outer cylinder part 30.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to an ejaculation promotion device and an inner cylindrical portion used therein. [Background technology]

[0002] Ejaculation promotion devices that artificially promote male ejaculation have been known for some time. These ejaculation promotion devices have a massage body that massages the penis, enabling the collection, retention, and storage of sperm for medical needs such as artificial insemination. Therefore, ejaculation promotion devices can be used to examine male sexual function, treat sexual dysfunction, and investigate the causes of marital infertility. Ejaculation promotion devices can also be used to relieve personal sexual desire, and can fulfill various social needs, such as preventing sex crimes, preventing prostitution, and reducing the number of people infected with sexually transmitted diseases. In light of this background, the present applicant has proposed an ejaculation promotion device that can improve ejaculation efficiency (see Patent Document 1).

[0003] This ejaculation promotion device has a massage main body made of resin that is stretchable and tubular with one open end, and the penis can be inserted into the hollow part from the opening to massage the penis and promote ejaculation. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-5164 A Summary of the Invention [Problem to be solved by the invention]

[0005] Here, in the ejaculation promotion device with the above-mentioned configuration, since the hollow part of the massaging main body mainly comes into contact with the penis during massage, the tactile sensation affects the magnitude of the effect of promoting ejaculation. For this reason, it is desirable to enhance the tactile sensation of the hollow part of the massaging main body in the ejaculation promotion device.

[0006] The present disclosure has been made in consideration of the above circumstances, and aims to provide an ejaculation promotion device that can enhance the feel of the hollow part of the massage main body. [Means for solving the problem]

[0007] The ejaculation promotion device of the present disclosure comprises a cylindrical massage main body with an insertion opening at one end, the massage main body having a cylindrical outer cylindrical portion located on the outside, and an inner cylindrical portion located inside the outer cylindrical portion and forming a hollow portion into which the penis is inserted, the outer cylindrical portion having higher elasticity and shape retention than the inner cylindrical portion, and the inner cylindrical portion having higher lubricity than the outer cylindrical portion. [Effects of the Invention]

[0008] According to the ejaculation promotion device of the present disclosure, the feel of the hollow part of the massage main body can be improved. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view showing an ejaculation promotion device according to a first embodiment of the present disclosure. FIG. [Figure 2] FIG. 10 is a perspective view showing the ejaculation promotion device in a state where the storage tube portion and the outer tube portion of the massage main body portion are open. [Figure 3] FIG. 2 is a cross-sectional view taken along line II shown in FIG. [Figure 4] FIG. 2 is a cross-sectional view taken along line II-II shown in FIG. [Figure 5] 10 is a perspective view showing a state in which only the outer cylindrical portion of the massage main body is fitted into the cylindrical storage portion. FIG. [Figure 6] FIG. 10 is a perspective view showing the state in which the inner cylindrical portion is disposed on the outer cylindrical portion. [Figure 7] FIG. 10 is a perspective view showing an ejaculation promotion device of a second embodiment. [Figure 8] FIG. 10 is a perspective view showing how the inner cylindrical part is inserted in the ejaculation promotion device of the second embodiment. [Figure 9]FIG. 8 is a perspective view showing a cross section taken along line III-III shown in FIG. 7. DETAILED DESCRIPTION OF THE INVENTION

[0010] Each embodiment of the ejaculation promotion device according to the present disclosure will be described below with reference to Figures 1 to 9. Note that in Figures 2 to 4 and 7 to 9, the cylindrical portion 41 of the inner cylindrical portion 40 is shown to fit perfectly into the hollow portion 33 and the insertion opening 35 of the outer cylindrical portion 30 in order to make it easier to understand the overall configuration, but this does not necessarily correspond to the actual configuration. [Example]

[0011] The ejaculation promotion device 10, for example, massages the inserted penis when the penis is inserted. In the following description, in the ejaculation promotion device 10, the direction in which the penis is inserted is referred to as the front-to-rear direction (referred to as Z in the drawings), and one of two orthogonal directions along a plane perpendicular to the front-to-rear direction is referred to as a first direction (referred to as X in the drawings), and the other is referred to as a second direction (referred to as Y in the drawings). In the front-to-rear direction, the side where an insertion opening 45, which will be described later, is located (the front left side when viewing FIG. 1 from the front) is referred to as the front side, and is referred to as the positive direction in Z in the drawings.

[0012] As shown in Figs. 1 to 6, the ejaculation promotion device 10 is configured by providing a massage main body 12 in a cylindrical storage section 11. The cylindrical storage section 11 is formed from a hard material such as plastic, and is tubular in shape to accommodate the massage main body 12. The cylindrical storage section 11 has an opening 21 at its front end in the front-to-rear direction, and has a storage section 22 extending from the opening 21 in the front-to-rear direction. The storage section 22 is a section for storing the massage main body 12. The cylindrical storage section 11 of Example 1 is configured by a first cylindrical section 23 and a second cylindrical section 24.

[0013] The first cylindrical portion 23 and the second cylindrical portion 24 are shaped such that the cylindrical storage portion 11 is divided into approximately half along a plane extending in the front-to-rear direction, and are connected by a hinge portion 25 provided between them. The hinge portion 25 allows the first cylindrical portion 23 and the second cylindrical portion 24 to be opened and closed between a closed state (see FIG. 1, etc.) and an open state (see FIG. 2, etc.). The first cylindrical portion 23 and the second cylindrical portion 24 are provided with a fixing portion 26 at the end opposite the hinge portion 25.

[0014] The fixed part 26 has a fixed shaft 27. This fixed shaft 27 is provided in the first cylindrical part 23 so as to be movable in the front-rear direction, and a force pushing the fixed shaft 27 rearward in the front-rear direction is applied by a spring (not shown). The fixed shaft 27 is stopped in a state in which a tip portion 27a is exposed rearward in the front-rear direction by being pushed by the spring, and can be displaced forward against the spring by pushing the tip portion 27a forward in the front-rear direction. This fixed shaft 27 is provided with a plurality of hook portions 27b, which are partially exposed from the first cylindrical part 23. Each of these hook portions 27b protrudes in the second direction and then protrudes rearward in the front-rear direction, and its upper end is notched at an angle.

[0015] In the fixed part 26, the second cylindrical portion 24 is provided with hook holes 28 corresponding to the hook locations 27b (see FIGS. 2 and 6). Each hook hole 28 can receive a corresponding hook location 27b when the fixed shaft 27 is displaced forward. When the fixed shaft 27 is pushed forward by a spring and stopped at the rear, the received hook location 27b is hooked. Each hook location 27b has an oblique notch at the upper end of its protruding end. When the hook location 27b contacts the edge of the corresponding hook hole 28, the fixed shaft 27 moves forward and enters the hook hole 28, allowing the fixed shaft 27 to close without operating the fixed shaft 27. This allows the fixed part 26 to secure the first cylindrical portion 23 and the second cylindrical portion 24 in a closed state. The fixed part 26 can be released by pushing the tip 27a of the fixed shaft 27 forward.

[0016] The first and second cylindrical portions 23 and 24 each have a window 29 (see Figures 1, 5, etc.). The window 29 allows the massaging main body 12 (and its outer cylindrical portion 30, described later) to be exposed and deformed so as to expand. By appropriately setting the size and position of the window 29, the pressure exerted by the massaging main body 12 on the penis when the penis is inserted can be adjusted. Note that the window 29 may not be provided if there is no need to adjust the pressure exerted by the massaging main body 12 on the penis.

[0017] The massage body 12 allows the penis to be inserted and stimulates the inserted penis. As shown in Figures 2 to 6, the massage body 12 has an outer tubular portion 30 and an inner tubular portion 40. The outer tubular portion 30 forms the massage body 12 and is made of a thermoplastic elastomer or soft urethane foam. The outer tubular portion 30 can maintain a predetermined shape when no force is applied, but can expand and deform when force is applied. The outer tubular portion 30 has a tubular portion 31 and an inlet portion 32.

[0018] The cylindrical portion 31 has a long, cylindrical shape extending in the axial direction and has an outer dimension that allows it to be housed in the cylindrical storage portion 11. The cylindrical portion 31 has a hollow portion 33 formed by drilling a central portion in the axial direction. This hollow portion 33 has a substantially circular cross section and a bottom (rear wall) on the rear side in the axial direction. In Example 1, the cross section is an elongated hole that is long in a first direction (see arrow X) perpendicular to the front-to-rear direction (see Figures 2, 4, etc.). The cross section of the hollow portion 33 may be appropriately set and is not limited to the configuration of Example 1. The hollow portion 33 may have a plurality of folds or irregularities formed on its inner wall. Furthermore, a ring may be embedded in the cylindrical portion 31 so as to surround the hollow portion 33 in order to partially prevent the hollow portion 33 from expanding. This cylindrical portion 31 has a fixing recess 31a on its outer circumferential surface, which fits into a fixing protrusion 11a provided on the inner circumferential surface of the cylindrical storage portion 11, thereby preventing misalignment with respect to the cylindrical storage portion 11 (see FIG. 3).

[0019] Two adjustment spaces 34 are provided in this cylindrical portion 31 (see Figures 3 and 4). The adjustment spaces 34 are positioned in pairs in the second direction (see arrow Y) and are provided so as to partially penetrate the thick portion on the outside of the hollow portion 33. Each adjustment space 34 is connected to the outside (see Figure 3) and can be collapsed by applying pressure. By appropriately setting the size and position of each adjustment space 34, the pressure applied to the penis by the massage main body 12 when the penis is inserted can be adjusted. In particular, each adjustment space 34 in Example 1 is positioned corresponding to the window portion 29 of the storage cylindrical portion 11 (first cylindrical portion 23, second cylindrical portion 24), so that the pressure applied to the penis can be adjusted by both the action of the adjustment space itself collapsing and the action of its surroundings expanding outward from the window portion 29. Note that each adjustment space 34 may not be provided if adjustment of the pressure applied to the penis by the massage main body 12 is not necessary. Each adjustment space 34 may be configured to be able to heat the massage main body 12 by arranging a heating part that can generate heat by external operation.

[0020] The entrance portion 32 is connected to the hollow portion 33 of the cylindrical portion 31 and has an insertion opening portion 35 and an attachment portion 36. The insertion opening portion 35 forms an insertion opening for the penis in the massage main body portion 12 (outer cylindrical portion 30), and its diameter is partially narrowed. The insertion opening portion 35 in Example 1 is an elongated hole elongated in the second direction (see FIG. 5, etc.). That is, the insertion opening portion 35 is configured so that the narrowing direction is inclined 90 degrees from the cylindrical portion 31 (hollow portion 33). The shape and diameter of the insertion opening portion 35 may be the same as those of the cylindrical portion 31 (hollow portion 33), or may have other configurations.

[0021] The attachment point 36 is the location on the outer tubular portion 30 where the inner tubular portion 40 is attached. This attachment point 36 is provided at the front end of the insertion opening portion 35. This attachment point 36 is annular in shape with an outer diameter larger than the outer diameters of the tubular portion 31 and the insertion opening portion 35, and has an attachment groove 37 provided on the inside.

[0022] The outer tubular portion 30 of the first embodiment is composed of a first main body portion 38 and a second main body portion 39 that are divided substantially in half along a plane extending in the front-rear direction (see FIG. 2, etc.). The first main body portion 38 can be fitted inside the first tubular portion 23 of the tubular storage portion 11. The second main body portion 39 can be fitted inside the second tubular portion 24 of the tubular storage portion 11. The first main body portion 38 and the second main body portion 39 have flat dividing surfaces and are butted together to form the first tubular portion 23. An inner tubular portion 40 is provided inside the outer tubular portion 30.

[0023] The inner tubular portion 40 is the portion of the massage body 12 that comes into contact with the penis and is made of a material that uses water as a dispersion medium. This material will be described later. The inner tubular portion 40 has enhanced lubricity and moisture retention compared to the outer tubular portion 30. Furthermore, compared to the outer tubular portion 30, the inner tubular portion 40 has lower ability to maintain a predetermined shape (shape retention) and ability to stretch when force is applied (elasticity). Furthermore, compared to the outer tubular portion 30, the inner tubular portion 40 has the same ability to deform when force is applied (deformability), such as bending. The inner tubular portion 40 has a tubular portion 41 and an attachment portion 42.

[0024] The cylindrical portion 41 has a cylindrical shape extending in the axial direction and has a hollow portion 43 formed by boring a central portion in the axial direction. The hollow portion 43 has a substantially circular cross section and a bottom (rear wall) on the rear side in the axial direction. The hollow portion 43 has a plurality of folds or irregularities appropriately formed on its inner wall, and in the first embodiment, a plurality of folds are provided. The cylindrical portion 41 is sized to be able to be placed in the massage main body 12. Specifically, the cylindrical portion 41 is sized to be able to be placed inside the insertion opening 35 of the inlet portion 32 of the massage main body 12 and to be able to be placed in the hollow portion 33 of the cylindrical portion 31. In addition, the cylindrical portion 41 has an outer diameter larger than the inner diameters of the insertion opening 35 and the hollow portion 33, and in the first embodiment, it is shaped like a circle having a dimension equal to the diameter of the hollow portion 33 in the first direction, which is elongated. For this reason, the tubular portion 41 may be partially folded or folded and positioned inside the insertion opening 35 or the hollow portion 33, rather than fitting into them. It is desirable to set the relative sizes of the inner tubular portion 40 and the outer tubular portion 30 such that the inner tubular portion 40 can contact the hollow portion 33 when the outer tubular portion 30 is in the most extended state possible.

[0025] The mounting portion 42 is attached to the mounting location 36 of the inlet portion 32 of the outer tubular portion 30. The mounting portion 42 is provided at the front end of the tubular portion 41. The mounting portion 42 is annular with an outer diameter larger than that of the tubular portion 41, and is provided with a flange 44 that protrudes radially. The flange 44 can be fitted into the mounting groove 37 of the mounting location 36, thereby fixing the mounting portion 42 to the mounting location 36. Note that the mounting portion 42 may have any other configuration as long as it can be fixed to the mounting location 36, and is not limited to the configuration of Example 1.

[0026] The inside of this attachment part 42 is an insertion opening 45. The insertion opening 45 is connected to the hollow part 43 of the cylindrical part 41 of the inner cylindrical part 40, and is the part where the penis is inserted. This insertion opening 45 essentially functions as the part where the penis is inserted into the massage main body part 12.

[0027] Next, the material of the inner tubular portion 40 will be described. The inner tubular portion 40 is formed from a material that uses water as a dispersion medium, thereby enhancing lubricity and moisture retention. In Example 1, water is used as the dispersion medium, and polyacrylic acid or sodium polyacrylate (sodium salt) is used as the dispersoid. In Example 1, polyacrylic acid, sodium polyacrylate, or the like is crosslinked and gelled using a metal salt, resulting in a water-containing gel (hydrogel) that retains 40 to 85% by weight of water.

[0028] As another example, a dispersion medium containing water and agar as a dispersoid may be used. In this example, the water content is 98% (agar concentration 2.0% by weight) and the gel strength (jelly strength) is 2300 g / cm. 2 This gel strength is measured in accordance with the "Nissan-sui method" (JIS K 8263). In this method, an agar solution of a predetermined concentration (for example, a 1.5% by weight sol) is prepared, and the gel is solidified by leaving it at 20°C for 15 hours. The gel is then set in a strength measuring instrument, and a load is applied to the surface of the gel using the load axis of the strength measuring instrument. 2 The maximum weight (g) that can be withstood for 20 seconds per agar is measured, and the measured maximum weight is taken as the gel strength. The agar is made from at least one seaweed from the genera Gelidium, Gracilaria, and Obakusa. For example, if the gel strength at an agar concentration of 1.5 wt% is 1500 g / cm 2 The weight-average molecular weight is 600,000 or more, and the molecular weight distribution (Mw (weight-average molecular weight) / Mn (number-average molecular weight)) is 13 or less. In this example, the inner tube portion 40 has a water content of 98.0% or more and 99.9% or less (agar concentration of 2.0% by weight or less and 0.1% by weight or more), which can provide moisture and moderate stimulation to the penis that comes into contact with it. In addition, the inner tube portion 40 in this example can be used even while bathing, as the temperature at which the gelled agar solates is 80°C or higher.

[0029] The lower the water content of the inner tube portion 40, the stronger the stimulation provided to the target area. Therefore, the water content of the inner tube portion 40 can be adjusted according to the desired intensity of stimulation. Furthermore, as long as the inner tube portion 40 is made of a gel using water as a dispersion medium, other substances may be used as dispersoids, and are not limited to the above examples. Examples of other dispersoids include agar and water-soluble polysaccharides, such as konjac (glucomannan).

[0030] The inner tubular portion 40 thus formed has enhanced lubricity and moisture retention using water as a dispersion medium, as described above, and may dry out if left in the air. For this reason, it is desirable to store the inner tubular portion 40 in a sealed case or the like, and in Example 1, the inner tubular portion 40 is individually sealed in a sealed bag.

[0031] Next, an example of how to use the ejaculation promotion device 10 will be described. As shown in Fig. 5, the ejaculation promotion device 10 has the first main body portion 38 of the outer cylindrical portion 30 fitted into the first cylindrical portion 23 of the cylindrical storage portion 11, and the second main body portion 39 of the outer cylindrical portion 30 fitted into the second cylindrical portion 24 of the cylindrical storage portion 11. When the ejaculation promotion device 10 is not in use, the first main body portion 38 and the second main body portion 39 are closed around the hinge portion 25, and the first main body portion 38 and the second main body portion 39 are butted together to form the first cylindrical portion 23.

[0032] When using the ejaculation promotion device 10, the distal end portion 27a of the fixing shaft 27 of the fixing portion 26 is pushed forward to release the fixing, thereby opening the cylindrical storage portion 11 and the outer cylindrical portion 30 (see FIG. 6). The inner cylindrical portion 40 is then removed from the sealed pouch and placed in the hollow portion 33 of the first main body portion 38 or the second main body portion 39 (first main body portion 38 in FIG. 6) of the outer cylindrical portion 30. At this time, the flange 44 of the mounting portion 42 of the inner cylindrical portion 40 is fitted into the mounting groove 37 of the mounting portion 36 of the outer cylindrical portion 30, thereby attaching the inner cylindrical portion 40 to the outer cylindrical portion 30. The first main body portion 38 and the second main body portion 39 are then closed around the hinge portion 25 (see FIG. 2), and the ejaculation promotion device 10 is placed in a usable state in which the inner cylindrical portion 40 is placed in the hollow portion 33 of the outer cylindrical portion 30 within the cylindrical storage portion 11 (see FIG. 1, etc.).

[0033] The user inserts his penis into the hollow portion 43 of the tubular part 41 of the inner tubular part 40 of the ejaculation promotion device 10 through the insertion opening 45 of the main massage body 12. The inner tubular part 40 then comes into contact with the penis, providing a smooth, pleasant feel. Furthermore, since the hollow portion 43 of the ejaculation promotion device 10 is surrounded by the hollow portion 33 of the outer tubular part 30, pressure on the penis is essentially applied by the outer tubular part 30 (hollow portion 33). Therefore, the ejaculation promotion device 10 can provide a pleasant pressure and feel to the penis, enhancing the effect of promoting ejaculation. After this, the user removes his penis from the hollow portion 43 and opens the cylindrical storage part 11 and the outer tubular part 30 (see FIG. 6). The user then removes the inner tubular part 40 from the outer tubular part 30 (see FIG. 2) and appropriately collects the sperm stored in the hollow portion 43. Thereafter, the user can close the cylindrical storage portion 11 and the outer cylindrical portion 30 to return to the original state in which the inner cylindrical portion 40 is not stored (see FIG. 5).

[0034] In this way, the ejaculation promotion device 10 has the inner tubular portion 40, which is made of a material that uses water as a dispersion medium and has high moisture retention and excellent lubricity, in contact with the penis, allowing for a slippery, smooth contact and an extremely pleasant feel.Here, conventional ejaculation promotion devices have been considered, for example, to use a massaging main body made of the same material as the outer tubular portion 30 of the ejaculation promotion device 10, and while this has excellent stretchability and shape retention, there is room for improvement in terms of feel.

[0035] In contrast, the ejaculation promotion device 10 has a massage main body 12 configured with the inner tubular portion 40 provided inside the outer tubular portion 30 made of the same material as conventional devices, so the inner tubular portion 40 can be brought into contact with the penis while still utilizing the functions of the outer tubular portion 30. In other words, the ejaculation promotion device 10 provides a pleasant feel by incorporating moisturizing and lubrication properties into the inner tubular portion 40, while the outer tubular portion 30 compensates for the shape retention and stretchability that are difficult to achieve with the inner tubular portion 40, thereby achieving the effect of tightening the penis. This allows the ejaculation promotion device 10 to have both excellent stretchability and shape retention while providing an extremely pleasant feel, thereby enhancing the effect of promoting ejaculation.

[0036] Furthermore, since the inner tube portion 40 of the ejaculation promotion device 10 has enhanced lubricity and moisture retention, it may dry out if left in the air. Therefore, the inner tube portion 40 is individually sealed in a sealed bag. The ejaculation promotion device 10 has a configuration in which the storage tube portion 11 and the outer tube portion 30 are openable and closable. Each time the ejaculation promotion device 10 is used, the inner tube portion 40 is removed from the sealed bag, and the storage tube portion 11 and the outer tube portion 30 are opened and the inner tube portion 40 is placed in the hollow portion 33. Therefore, the ejaculation promotion device 10 can easily be provided inside the outer tube portion 30, and can always be used in a state of enhanced lubricity and moisture retention. Furthermore, since the ejaculation promotion device 10 always uses a new inner tube portion 40, it can be used in an extremely clean state. Furthermore, when using the ejaculation promotion device 10, it is only necessary to position the inner tubular portion 40, so that the inner tubular portion 40 of one's choice can be used depending on, for example, the size, spacing, shape, etc. of the folds and irregularities on the inner wall of the hollow portion 43.

[0037] Furthermore, in the ejaculation promotion device 10, the outer diameter of the inner tubular portion 40 is larger than the inner diameter of the hollow portion 33 of the outer tubular portion 30. Therefore, even if the outer tubular portion 30 deforms depending on the size of the inserted penis, the inner tubular portion 40 can adapt to the penis. In other words, in the ejaculation promotion device 10, the inner tubular portion 40 has lower elasticity than the outer tubular portion 30, so that even if the outer tubular portion 30 stretches, the inner tubular portion 40 is sized to accommodate this. This allows the inner tubular portion 40, which has improved lubricity and moisture retention, to function effectively within the outer tubular portion 30, which has improved shape retention and elasticity, thereby enhancing the effect of promoting ejaculation.

[0038] For these reasons, the ejaculation promotion device 10 can facilitate the collection, retention, and storage of sperm from the perspective of medical needs such as artificial insemination, and can be used to examine male sexual function, treat sexual dysfunction, and investigate the causes of infertility between couples. The ejaculation promotion device 10 can also be used to relieve personal sexual desire, and can meet various social needs such as preventing sex crimes, preventing prostitution, and reducing the number of people infected with sexually transmitted diseases.

[0039] The ejaculation promotion device 10 of the first embodiment can provide the following effects.

[0040] The ejaculation promotion device 10 includes a cylindrical massage body 12 with an insertion opening 45 at one end. The massage body 12 includes a cylindrical outer tube 30 located on the outside and an inner tube 40 located inside the outer tube 30 and defining a hollow section 43 into which the penis is inserted. The outer tube 30 has greater elasticity and shape retention than the inner tube 40, and the inner tube 40 has greater lubricity than the outer tube 30. As a result, the ejaculation promotion device 10 provides a pleasant feel by incorporating the moisturizing and lubricity of the inner tube 40, while the outer tube 30 compensates for the shape retention and elasticity that are difficult to achieve with the inner tube 40, thereby achieving the effect of tightening the penis. As a result, the ejaculation promotion device 10 can be made to have both excellent elasticity and shape retention while providing an extremely pleasant feel, thereby enhancing the effect of promoting ejaculation.

[0041] The ejaculation promotion device 10 has an inner cylindrical portion 40 formed from a gel using water as a dispersion medium, which allows the ejaculation promotion device 10 to have good moisture retention and lubrication properties.

[0042] The ejaculation promotion device 10 has an outer tubular portion 30 that can be separated along a separation plane along the axial direction, and with the outer tubular portion 30 separated, the inner tubular portion 40 is provided inside the outer tubular portion 30. Therefore, even if the ejaculation promotion device 10 is provided with the inner tubular portion 40 at the time of use, the work of providing the inner tubular portion 40 can be made easy, and the inner tubular portion 40 can be easily removed after use.

[0043] The outer tubular portion 30 of the ejaculation promotion device 10 is formed from a thermoplastic elastomer or soft urethane foam. Therefore, the ejaculation promotion device 10 can easily achieve good stretchability and shape retention.

[0044] Therefore, the ejaculation promotion device 10 of the first embodiment as the ejaculation promotion device according to the present disclosure can improve the feel of the hollow part 43 of the main massage body. [Example]

[0045] Next, an ejaculation promotion device 10A of Example 2, which is an embodiment of the present disclosure, will be described with reference to Figures 7 to 9. The ejaculation promotion device 10A differs from the ejaculation promotion device 10 of Example 1 in the configuration of the storage tube portion 11 and the massage main body portion 12. The basic concept and configuration of the ejaculation promotion device 10A are similar to those of the ejaculation promotion device 10 of Example 1, so the same components are designated by the same reference numerals and detailed description thereof will be omitted.

[0046] In the ejaculation promotion device 10A of the second embodiment, the cylindrical storage portion 11A is configured as a single cylindrical portion, and is not provided with a hinge portion 25 or a fixing portion 26. Therefore, the cylindrical storage portion 11A is always cylindrical. Accordingly, in the ejaculation promotion device 10A, the outer cylindrical portion 30A of the main massage body 12A is configured as a single cylindrical portion. Therefore, the outer cylindrical portion 30A is always cylindrical. This outer cylindrical portion 30A is previously arranged inside the cylindrical storage portion 11A (see FIGS. 7 and 8).

[0047] The inner cylindrical portion 40A of the massage body 12A is composed of a single cylindrical portion. This inner cylindrical portion 40A, like the inner cylindrical portion 40 of the first embodiment, is made to have enhanced lubricity and moisture retention by using water as a dispersion medium, and is sealed in a sealed bag to prevent it from drying out. Similarly to the inner cylindrical portion 40 of the first embodiment, the inner cylindrical portion 40A is placed inside the outer cylindrical portion 30A when in use.

[0048] An example of how to use this ejaculation promotion device 10A will be described. When using the ejaculation promotion device 10A, the inner cylindrical portion 40A is inserted into the hollow portion 33 from the entrance portion 32 of the outer cylindrical portion 30A, which is disposed inside the cylindrical storage portion 11A. At this time, the inner cylindrical portion 40A is pushed into the hollow portion 33 while being covered by an insertion rod 51 (see FIG. 8). This insertion rod 51 is made of a material and has a shape that will not damage the inner cylindrical portion 40A (especially its hollow portion 43), thereby preventing the inner cylindrical portion 40A from being damaged when pushed into the hollow portion 33. As a result, the ejaculation promotion device 10A is placed in use with the inner cylindrical portion 40A disposed inside the outer cylindrical portion 30A (see FIG. 9).

[0049] The user inserts his penis into the hollow portion 43 of the tubular portion 41 of the inner tubular portion 40A through the insertion opening 45 of the main massage body 12A of the ejaculation promotion device 10A. The inner tubular portion 40A then comes into contact with the penis, providing a smooth, pleasant feel. Furthermore, since the hollow portion 43 of the ejaculation promotion device 10A is surrounded by the hollow portion 33 of the outer tubular portion 30A, pressure on the penis is essentially applied by the outer tubular portion 30A (hollow portion 33). Therefore, the ejaculation promotion device 10A can provide a pleasant pressure and feel to the penis, enhancing the effectiveness of ejaculation promotion. After this, the user removes his penis from the hollow portion 43, pulls the inner tubular portion 40A out of the hollow portion 33 of the outer tubular portion 30A, and appropriately collects the sperm stored in the hollow portion 43.

[0050] The ejaculation promotion device 10A of the second embodiment according to the present disclosure can achieve the following effects. This ejaculation promotion device 10A has basically the same configuration as the ejaculation promotion device 10 of the first embodiment, and therefore can achieve the same effects as the first embodiment.

[0051] In addition, in the ejaculation promotion device 10A, the inner cylindrical portion 40A is pushed inward from the entrance portion 32 of the outer cylindrical portion 30. Therefore, the ejaculation promotion device 10 can easily position the inner cylindrical portion 40A.

[0052] Furthermore, the ejaculation promotion device 10A can be applied to general ejaculation promotion devices because the inner tube portion 40A is inserted into the hollow portion 33 of the outer tube portion 30A through the insertion opening 45. That is, by inserting the inner tube portion 40A into the insertion opening of the massage main body of a general ejaculation promotion device, the ejaculation promotion device can be made similar to the ejaculation promotion device 10A of Example 2 according to the present disclosure. Therefore, the inner tube portion 40A can be applied to various ejaculation promotion devices, and can improve the feel when using the ejaculation promotion device.

[0053] Therefore, the ejaculation promotion device 10A of the second embodiment according to the present disclosure can improve the feel of the hollow part 43 of the main massage body part 12A.

[0054] The ejaculation promotion device of the present disclosure has been described above based on each embodiment, but the specific configuration is not limited to each embodiment, and design changes and additions are permitted as long as they do not deviate from the gist of the invention as claimed in each claim of the patent.

[0055] In each embodiment, the ejaculation promotion device 10, 10A has the overall shape and configuration as described above. However, as long as the ejaculation promotion device has a cylindrical massage main body composed of an outer cylindrical portion 30 and an inner cylindrical portion 40, and the outer cylindrical portion 30 has higher elasticity and shape retention than the inner cylindrical portion 40, and the inner cylindrical portion 40 has higher lubricity than the outer cylindrical portion 30, the overall shape and configuration may be set as appropriate and are not limited to the configurations of each embodiment.

[0056] In addition, in each embodiment, the ejaculation promotion device is simply configured to insert the penis into the massage main body. However, the ejaculation promotion device may also be configured to have a drive unit that applies vibrations to the massage main body, applies pressure to partially or entirely crush the massage main body, reciprocates the massage main body in the front-to-back direction, tilts the massage main body relative to the front-to-back direction, or a combination of these, and is not limited to the configuration of each embodiment. [Explanation of symbols]

[0057] 10, 10A Ejaculation promotion device 12, 12A Massage main body 30, 30A Outer tube 32 Entrance portion 40, 40A Inner tube 43 Hollow portion 45 Insertion opening

Claims

1. It has a cylindrical massage body with an insertion opening at one end, The massage main body has a cylindrical outer cylindrical part located on the outside, and an inner cylindrical part provided inside the outer cylindrical part and constituting a hollow part into which the penis is inserted, The outer tubular portion has higher elasticity and shape retention than the inner tubular portion, The ejaculation promotion device is characterized in that the inner cylindrical portion has higher lubricity than the outer cylindrical portion.

2. 2. The ejaculation promotion device according to claim 1, wherein the inner cylindrical portion is formed of a gel using water as a dispersion medium.

3. the outer cylindrical portion is divisible along a dividing surface along an axial direction, 3. The ejaculation promotion device according to claim 1, wherein the inner cylindrical portion is provided inside the outer cylindrical portion in a state where the outer cylindrical portion is divided.

4. 3. The ejaculation promotion device according to claim 1, wherein the inner cylindrical portion is pushed inward from an inlet portion of the outer cylindrical portion.

5. 3. The ejaculation promotion device according to claim 1, wherein the outer cylindrical portion is made of a thermoplastic elastomer or soft urethane foam.

6. For an ejaculation promotion device having a cylindrical massage main body part with an insertion opening at one end, an inner cylindrical part is provided inside a cylindrical outer cylindrical part located on the outside of the massage main body part and forms a hollow part into which the penis is inserted, An inner tubular portion characterized by having lower elasticity and shape retention than the outer tubular portion, and having higher lubricity than the outer tubular portion.

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