container

Abstract

The present invention provides a container with a lid-closing structure that prevents wear on the protrusions used to provide a clicking sensation. [Solution] The container 1 comprises a container body 2 having a hollow portion 22 on its cylindrical inner surface with multiple grooves 24 formed at equal angular intervals, one end of which is open and the other end closed, and a lid 3 having a hollow cylindrical portion 33 that is open at the bottom and arranged coaxially with the cylindrical axis 100. On the outer surface of the cylindrical portion, protrusions 35 and projections 36 corresponding to the grooves are formed in a protrusion-forming region 38 partitioned by two slits 37 extending upward from the lower end of the cylindrical portion. Inside the grooves, convex portions 26 are formed that project radially inward relative to the cylindrical axis. When the lid is attached to the container body by engaging the protrusions in the grooves, the protrusion-forming region flexes radially inward relative to the cylindrical axis, causing the projections to overcome the convex portions.

Description

Technical Field

[0001] The present invention relates to a container.

Background Art

[0002] As a container closing mechanism, a screw cap is well known. A container using a screw cap has excellent sealing performance and is suitable for storing liquids (e.g., detergents, liquid cosmetics, beverages), drugs, foods, etc. However, a general screw cap requires a rotational operation over several rotations when screwing, and it is difficult to quickly open and close the cap. Therefore, there is a screw cap in which a screw with one pitch, called "quick turn" or "one-turn lock", is formed. In a container using this type of closing mechanism (hereinafter sometimes referred to as "quick turn"), the lid can be closed by a rotational operation of less than one full turn.

[0003] In addition, some quick-turn type closing mechanisms use partial threads formed intermittently at equal angular intervals instead of continuous threads over one turn. In a quick-turn type closing mechanism using this partial thread, the male thread is engaged with a groove-shaped female thread whose tip is closed. There is also a closing mechanism in which the components corresponding to the male and female threads are not part of a helix but are in an arc shape that is part of an annulus. In any case, on one of the container body and the lid, there is provided a protrusion (hereinafter sometimes referred to as a "rib") that projects radially outward on the outer peripheral surface and circulates within a predetermined angular range, such as a male thread composed of partial threads or an arc-shaped protrusion, and on the other, there is a closing mechanism in which a groove engaging with the rib is provided on the inner peripheral surface.

[0004] Incidentally, in a lid-closing mechanism using interlocking ridges and grooves as described above, there is a possibility of damaging the closed end of the groove by over-rotating the cap. Therefore, a projection is sometimes formed in the groove formed in one of the container body and lid, and a projection is also formed on the other side where the ridge is formed, which overcomes the projection as the cap is rotated. In some cases, the ridge is used as this projection on the other side. In this type of lid-closing mechanism, as the cap is rotated, the user receives a "click" sensation, which is the feeling when the projection on the side where the ridge is formed overcomes the projection on the side where the groove is formed. By stopping the rotation operation when the user senses this click sensation, the user can prevent damage to the groove due to excessive rotation. Containers equipped with a lid-closing mechanism that provides a click sensation as the cap is rotated are described, for example, in the following Patent Documents 1 and 2. [Prior art documents] [Patent Documents]

[0005] [Patent Document 1] Jitszensho No. 630186646 [Patent Document 2] Japanese Patent Publication No. 2024-95298 [Overview of the Initiative] [Problems that the invention aims to solve]

[0006] As mentioned above, some container lid closing mechanisms equipped with an engagement structure consisting of ridges and grooves have protrusions that convey the range of rotation of the cap to the user through a clicking sensation. However, if the cap is opened and closed frequently, these protrusions that convey the clicking sensation wear down, and the clicking sensation diminishes. If the height of the protrusions is reduced to suppress wear, a sufficient clicking sensation cannot be obtained, and it becomes difficult to accurately convey the range of rotation of the cap to the user.

[0007] Therefore, the present invention aims to provide a container that allows the user to clearly communicate the range of rotation of the cap through a click sensation, and that has a lid closing structure in which the protrusion for obtaining the click sensation is less prone to wear. [Means for solving the problem]

[0008] One aspect of the present invention for achieving the above objective is a container comprising a bottomed, hollow cylindrical container body having an opening at the top, and a lid that is detachably attached to the cylindrical inner surface of the container body, The container body has a hollow portion extending downward from the opening, on the cylindrical inner surface, in which multiple grooves are formed at equal angular intervals, encircling the cylindrical axis, with one end open and the other end closed. The cover has a hollow cylindrical portion at its lower end that is open at the bottom and is arranged coaxially with the cylindrical axis. The cylindrical portion has protrusions formed on its outer surface corresponding to each of the grooves formed at multiple locations on the container body, and each of the protrusions is provided in a protrusion-forming region demarcated by two slits formed upward from the lower end of the cylindrical portion. In the aforementioned rib-forming region, a projection is formed that protrudes radially outward with respect to the cylindrical axis. A protrusion is formed inside the groove, projecting radially inward with respect to the cylindrical axis. By inserting the cylindrical portion of the lid into the opening of the container body and rotating the lid, the protrusions corresponding to each groove engage, and the lid is attached to the container body. When the lid is attached to the container body, the ridge-forming region bends radially inward with respect to the cylindrical axis, and the projection overcomes the convex portion. It is a container.

[0009] The container may also be one in which the protrusions and projections are individually formed in the aforementioned protrusion-forming region. Furthermore, the container may be one in which the area around the projections is formed to be thin-walled.

[0010] The aforementioned protrusion also serves as the aforementioned projection, and the container can also be such that one of the aforementioned protrusions is divided into two parts by a gap.

[0011] In any of the above containers, the protrusion may be a male partial thread.

[0012] Any of the above containers may include a replacement container that is detachably attached to the lid and stored inside the container body. [Effects of the Invention]

[0013] According to the present invention, a refillable container is provided that suppresses running costs, while the replacement container is difficult to detach and can be easily attached and detached. Further effects will be described below. [Brief explanation of the drawing]

[0014] [Figure 1] This figure shows the appearance of the container according to the example. [Figure 2] This figure shows the container according to the first embodiment disassembled into its individual components. [Figure 3] This is an enlarged view of the pump cap and the main parts of the container body that constitute the container according to the first embodiment. [Figure 4] This figure shows the state when the pump cap of the container according to the first embodiment is attached to the container body. [Figure 5] This figure shows the state when the pump cap of the container according to the first embodiment is attached to the container body. [Figure 6] This is an enlarged view of the pump cap and the main parts of the container body that constitute the container according to the second embodiment. [Figure 7] This figure shows the state when the pump cap is attached to the container body in the container according to the second embodiment. [Figure 8] This figure shows the state when the pump cap of the container according to the second embodiment is attached to the container body.

Embodiment for Carrying Out the Invention

[0015] Embodiments of the present invention will be described with reference to the accompanying drawings. In the drawings used in the following description, the same or similar parts may be denoted by the same reference numerals, and redundant descriptions may be omitted. In some drawings, parts that are denoted by reference numerals may not be denoted by reference numerals in other drawings if they are unnecessary. ===Embodiment=== The lid closing mechanism in the container according to the embodiment has the above-described engaging structure of the protrusions and grooves and a structure for transmitting a clicking feeling to the user along with the operation of closing the lid. Here, a refillable container is cited as the container according to the embodiment. As is well known, when the contents of a refillable container are used up, instead of discarding the entire container, only the contents or only a separate container containing the contents (hereinafter sometimes referred to as an "exchange container") can be exchanged, and most of the container including the lid can be continuously used. Thereby, only the minimum necessary waste is produced, and waste reduction and resource protection can be promoted. Of course, for the user, after purchasing a refillable container for the first time, it is only necessary to purchase a new exchange container containing the contents, and there is also an advantage that the running cost when continuously using the contents can be greatly reduced.

[0016] However, in a refillable container, since the container body for storing the exchange container and the lid that freely opens and closes the opening of the container body are continuously used for a long time, higher durability and reliability are required for parts that are likely to wear. And the container according to the embodiment has a lid closing mechanism for suppressing wear on parts and components formed for transmitting a clicking feeling. Hereinafter, containers according to a first embodiment and a second embodiment in which the engaging structure between the lid and the container body and the configuration for transmitting the clicking feeling to the user are different will be cited. ===First Embodiment== <Basic Configuration> Figure 1 shows an external view of the container 1 according to the first embodiment, and Figure 2 shows the container 1 disassembled into its parts. As shown in Figure 1, the container 1 according to the first embodiment is a so-called "pump bottle" equipped with a pump unit 4. As shown in Figure 2, the container 1 comprises a container body 2 in which a replacement container 5 is housed, and a lid (hereinafter sometimes referred to as "pump cap 3") into which the pump unit 4 is incorporated with the replacement container 5 detachably attached. The pump cap 3, the replacement container 5, and the container body 2 are cylindrical, integrally molded products made of resin, and each is arranged coaxially with respect to the cylindrical shaft (hereinafter sometimes referred to as "shaft 100"). In the following, the direction of shaft 100 will be defined as the up and down direction, and the up and down directions will be defined assuming that the pump cap 3 is attached to the upper end of the container body 2.

[0017] As shown in Figure 2, the pump cap 3 is a hollow, three-stage cylindrical shape with openings at both the top and bottom ends. Each cylindrical section (31-33) gradually widens in diameter from the upper cylindrical section (hereinafter sometimes referred to as the "first cylindrical section 31") to the lower cylindrical section (hereinafter sometimes referred to as the "third cylindrical section 33"). Furthermore, at the boundary between the middle cylindrical section (hereinafter sometimes referred to as the "second cylindrical section 32") and the third cylindrical section 33 of the three-stage cylinder, a portion (hereinafter sometimes referred to as the "annular section 34") is formed, which protrudes radially outward in an annular shape relative to the axis 100.

[0018] On the outer circumferential surface of the third cylindrical portion 33, two projections 35 made of male partial threads are formed at 180° angles to each other around the axis 100. Below the projections 35, a projection 36 is formed that protrudes outward relative to the axis 100. In the region where the arc-shaped projections 35 are formed when viewed from above, slits 37 are formed at both ends of the arc, opening to the lower end of the third cylindrical portion 33 and extending upward to the annular portion 34. Hereafter, the region of the third cylindrical portion 33 that is demarcated by the two slits 37 and where the projections 35 and projection 36 are formed will be referred to as the projection-forming region 38.

[0019] The replacement container 5 is a hollow cylindrical shape with a bottom, and has a cylindrical neck portion 52 having an opening 51 at its upper end, to which a cylindrical shoulder portion 53 that widens in diameter relative to the neck portion 52 is continuous, and below the shoulder portion 53 is a body portion 54 in which the contents are stored. The body portion 54 is a frustoconical shape with a curved bottom. A male thread 55 is formed on the outer circumference of the neck portion 52 of the replacement container 5, and this male thread 55 is screwed into a female thread (not shown) formed on the inner circumference of the second cylindrical portion 32 of the pump cap 3. When the replacement container 5 is attached to the pump cap 3 by screwing the male thread 55 of the neck portion 52 into the female thread of the second cylindrical portion 32, the shoulder portion 53 is positioned inside the third cylindrical portion 33. Furthermore, the shoulder portion 53 is positioned with a small gap between its outer circumference and the inner circumference of the third cylindrical portion 33, without being in close contact.

[0020] The pump unit 4 incorporated into the pump cap 3 consists of a pump head 42a and a pump body 42b. The pump head 42a is equipped with a discharge port 41 for the contents, and the pump body 42b has a tube 43a inserted into a replacement container 5 attached to the pump cap 3, a connecting pipe 43b connected to the pump head 42a, and a housing 44 to which the connecting pipe 43b is connected at the upper end and the tube 43a is connected at the lower end. The housing 44 also has a flange portion 45 that protrudes annularly in the radial direction outward from the axis 100 at its upper end, and incorporates a spring that is compressed via the connecting pipe 43b when the pump head 42a is pressed downward. The connecting pipe 43b is connected to the spring built into the housing 44, and the tube 43a is attached to the housing 44 during the process of incorporating the pump unit 4 into the pump cap 3. Then, when the pump head 42a is pushed down in the direction of the shaft 100 by the user, the pump unit 4 discharges the contents of the replacement container 5 from the discharge port 41.

[0021] The procedure for assembling the completed pump, in which the pump unit 4 is incorporated into the pump cap 3, is as follows: First, the housing 44 is inserted into the pump cap 3 from below, and the flange portion 45 is fitted into the first cylindrical portion 31 of the pump cap 3. Next, the pump head 42a is fitted onto the upper end of the connecting pipe 43b that protrudes above the pump cap 3. Finally, the upper end of the tube 43a is fitted onto the lower end of the housing 44 to complete the pump.

[0022] The container body 2 is a bottomed cylindrical shape with an opening 21 at its upper end, and its interior is a hollow space (hereinafter sometimes referred to as the "hollow section 22") in which the replacement container 5 is housed. The hollow section 22 is a two-stage cylindrical shape that widens towards the upper end, with a step 25 at the boundary between the inner surface of the lower cylindrical section (hereinafter sometimes referred to as the "lower cylindrical section 22d") and the inner surface of the upper cylindrical section that widens towards the upper end (hereinafter sometimes referred to as the "upper cylindrical section 22u"). The lower cylindrical section 22d is the space in which the roughly frustoconical body 54 of the replacement container 5 is housed, and it is a frustoconical shape that gradually narrows towards the bottom, following the shape of the body 54.

[0023] The upper cylindrical portion 22u has a shape with irregularities on its cylindrical inner surface. Specifically, it has two ribs 23 that face each other with respect to the axis 100. These ribs project radially inward from the inner surface, extend circumferentially along the cylindrical inner surface, and then bend downward along the extension, forming an inverted L-shape when viewed radially outward from the axis 100.

[0024] The tip of the downwardly bent portion of the rib 23 is connected to a step 25 so as to be flush with the inner circumferential surface of the lower cylindrical portion 22d, and the rib 23 and the step 25 form a groove 24 that engages with the projection 35. In addition, a convex portion 26 is formed inside the groove 24, extending upward while projecting radially inward from the step 25 as its base. The upper end 26u of the convex portion 26 is separated from the portion of the rib 23 that extends in the circumferential direction.

[0025] In the container 1 according to the first embodiment, which has the above configuration and structure, a mechanism (hereinafter sometimes referred to as the "click sensation transmission mechanism") is provided to convey a click sensation to the user when the user engages the protrusion 35 and groove 24 to attach the pump cap 3 to the container body 2. The engagement structure between the pump cap 3 and the container body 2, and the click sensation transmission mechanism in the container 1 according to the first embodiment will be described below. <Engagement structure, click feel transmission mechanism> Figure 3 is a diagram illustrating the engagement structure between the pump cap 3 and the container body 2, and shows enlarged views of the main parts of the pump cap 3 and the container body 2. As described above, in the third cylindrical portion 33 of the pump cap 3, a projection 36 is formed below the ridge 35, projecting radially outward from the shaft 100. This projection 36 is formed in a tongue shape, with a width in the circumferential direction being narrower than its width in the vertical direction. Furthermore, the area around this projection 36 is a thin-walled portion 39 with a thickness in the radial direction being thinner than from the shaft 100. Therefore, the height of the projection 36 is substantially raised relative to its height from the surface of the third cylindrical portion 33.

[0026] In the rib 23 formed in the hollow portion 22 of the container body 2, the lower end of the portion extending in the circumferential direction is shaped to follow a spiral so as to engage with the male thread forming the projection 35. That is, in the rib 23, the portion extending in the circumferential direction is formed such that the width in the vertical direction gradually widens in a clockwise direction when viewed from above. In the following, in the groove 24, the end of the groove 24 that is closed by the inverted L-shaped rib 23 bending downward will be referred to as the closed end 24a, and the open end will be referred to as the open end 24b. Furthermore, the projection 35 that engages with this groove 24 will be defined as being inserted from the tip 35a into the open end 24b of the groove 24, and the tip 35a and base end 35b of the projection 35 will be defined accordingly.

[0027] The vertical width of the groove 24 is wider than the vertical width of the ridge, and the above-mentioned protrusion 26 is formed inside the groove. Furthermore, the shape of the protrusion 26 is semicircular when viewed from above. In the container 1 according to the first embodiment, the click sensation transmission mechanism is formed by the projection 36 on the pump cap 3 and the protrusion 26.

[0028] Figures 4 and 5 show the state when the pump cap 3 is being attached to the container body 2 (Figure 4: s1~s3, Figure 5: s4~s7). Figure 4 corresponds to the state when the container body 2 is viewed through from the direction of the white arrow shown in Figure 3, and Figure 5 shows the state corresponding to the cross-section viewed by arrow aa in Figure 4. As shown in Figures 4 and 5, when the pump cap 3 is attached to the container body 2, the projection 35 of the pump cap 3 is inserted between the lower edge of the circumferentially extending portion of the rib 23 of the container body 2 and the upper end 26u of the protrusion 26 (s1). When the pump cap 3 is screwed in in this state (s1), the projection 35 is guided by the rib 23 of the container body 2, and the projection 36 of the pump cap 3 comes into contact with the protrusion 26 of the container body 2 (s2, s4). As the pump cap 3 is further screwed in, the projection 36 overcomes the protrusion 26 (s5, s6), and the tip 35a of the ridge 35 contacts the closed end 24a of the groove 24, thereby attaching the pump cap 3 to the container body 2 (s3, s7). In this way, in the container 1 according to the first embodiment, the user can feel a click when the projection 36 overcomes the protrusion 26 during the process of attaching the pump cap 3 to the container body 2.

[0029] In the container 1 of the first embodiment, slits 37 are formed at both ends of the ridge-forming region 38 of the pump cap 3. Therefore, when the projection 36 overcomes the convex portion 26, the ridge-forming region 38 bends radially inward from its initial position with respect to the axis 100, as shown by the dashed line in state s5 of Figure 5. As a result, even if the pump cap 3 is frequently attached to and detached from the container body 2, the projection 36 and convex portion 26 are less likely to wear down, and the loss of the click sensation due to aging deterioration can be suppressed. Also, at the moment the projection 36 overcomes the convex portion 26, the bent ridge-forming region 38 recoils and swings radially outward, increasing the click sensation. Furthermore, since a thin-walled portion 39 is formed around the projection 36, increasing the height of the projection 36 in the radially outward direction, the projection 36 becomes more flexible. Therefore, when the projection 36 rides up onto the convex portion 26, it bends significantly in the opposite direction to the direction in which the pump cap 3 is screwed in. When it goes over the convex portion 26, the recoil from that bending causes it to swing significantly in the screwing direction, increasing the click sensation.

[0030] In the container 1 of the first embodiment, as the protrusion 35 engages with the groove 24, the lower surface of the annular portion 34 of the pump cap 3 comes into contact with the upper surface of the rib 23 which is flush with the upper end surface of the container body 2. The rib 23 is then held between the lower surface of the annular portion 34 and the upper surface of the protrusion 35 and biased upward. As a result, the protrusion 35 and the groove 24 engage firmly, and rattling between the container body 2 and the pump cap 3 is reliably suppressed even when the pump head 42a is pressed downward.

[0031] Furthermore, in the container 1 according to the first embodiment, the lower edge of the region extending circumferentially in the rib 23 and the protruding portion 35 have a typical female-to-male thread relationship. The lower edge of the rib 23, which is the female thread, is formed in a tapered shape that slopes upward in the radially inward direction, and the protruding portion 35, which is the male thread, is formed to gradually widen in the radially outward direction. Therefore, even if the engagement between the protruding portion 35 and the groove 24 is somewhat tight due to dimensional variations, for example, the protruding portion forming region 38 flexes radially inward due to the slit 37, causing the protruding portion 35 and the groove 24 to engage shallowly in the radial direction, and the vertical stress escapes radially. In other words, the slit 37 also has the function of absorbing dimensional variations related to the engagement between the protruding portion 35 and the groove 24. ===Second Example=== In the container 1 according to the first embodiment, the click sensation transmission mechanism was composed of a projection 36 formed on the pump cap 3 and a protrusion 26 formed on the container body 2, separate from the engagement structure between the protrusion 35 and the groove 24. However, in the container according to the second embodiment (hereinafter sometimes referred to as "container 101"), the click sensation transmission mechanism is configured without providing a projection 36 on the pump cap 3.

[0032] Figure 6 shows an enlarged view of the main part of the container 101 according to the second embodiment. The container 101 according to the second embodiment is a pump bottle having the same appearance as the first embodiment shown in Figure 1. However, the engagement structure between the protrusion 135 and the groove 124 and the configuration of the click sensation transmission mechanism differ from those of the first embodiment.

[0033] As shown in Figure 6, the third cylindrical portion 133 of the pump cap 103 has two rib-forming regions 138 defined by two slits 37 at 180° intervals from each other around the axis 100. Similar to the first embodiment, the rib 135 is a male partial thread, but a gap 136 is formed along the extension of the rib 135, dividing it into a rib on the tip 135c side (hereinafter sometimes referred to as "first rib 135a") and a rib on the base 135d side (hereinafter sometimes referred to as "second rib 135b"). On the other hand, the groove 124 that engages with the projection 135, which is composed of a male partial thread, is composed of a female partial thread having a closed end 124a. Also, unlike the groove 24 which is wide in the vertical direction in the first embodiment, it has only the minimum vertical width necessary for the engagement of the projection 135. Furthermore, a semicircular protrusion 126 is formed so as to traverse the groove 124 in the vertical direction when viewed from above. In addition, the height of the protrusion 126 that projects radially inward is lower than the height of the rib 123.

[0034] In the container 101 according to the second embodiment, a step 25 having an annular surface around the axis 100 is not provided as in the first embodiment. Instead, as shown in Figure 6, a spiral slope 125 is formed from the end 123a of the rib 123 constituting one of the two grooves 124, continuing to the lower edge surface 124c of the other groove 124 and extending to the closed end 124a of the groove 124. Of course, an annular step 25 may also be provided, as in the first embodiment.

[0035] Figures 7 and 8 show the state when the pump cap 103 is attached to the container body 102. Figure 7 corresponds to a view of the container body 102 from the direction of the white arrow shown in Figure 6. Figure 8 corresponds to the cross-section viewed from the direction of arrow bb in Figure 7. As shown in Figures 7 and 8, when the pump cap 103 is attached to the container body 102, first the first projection 135a of the pump cap 103 is inserted into the groove 124 of the container body 102 (s11, 114). When the pump cap 103 is screwed in in this state, the first projection 135a and the second projection 135b are guided into the groove 124, and the first projection 135a comes into contact with the protrusion 126 inside the groove 124 (s12, s15). As the pump cap 103 is further screwed in, the first protrusion 135a overcomes the protrusion 126, the gap 136 in the protrusion 135 engages with the protrusion 126, and the tip 135c of the protrusion 135 contacts the closed end 124a of the groove 124 (s13, s16). As a result, the pump cap 103 is attached to the container body 102. The user can then confirm that the pump cap 103 is correctly attached to the container body 102 by the click sensation felt when the first protrusion 135a overcomes the protrusion 126.

[0036] Thus, in the container 101 according to the second embodiment, the click sensation transmission mechanism is formed by the gap 136 provided in the protrusion 135 and the protrusion 126 provided inside the groove 124. Unlike the first embodiment, it is not necessary to provide both the protrusion 35 and the projection 36, and the vertical height required to form the engagement structure between the pump cap 103 and the container body 102 can be reduced. As a result, the height of the container body 102 can also be reduced, increasing the design freedom of the container 101.

[0037] Of course, in the container 101 according to the second embodiment, since slits 37 are formed at both ends of the ridge-forming region 138, similar to the container 1 according to the first embodiment, when the first ridge 135a overcomes the protrusion 126, the ridge-forming region 138 flexes radially inward with respect to the axis 100, making the first ridge 135a and the protrusion 126 less susceptible to wear. Also, at the moment the first ridge 135a overcomes the protrusion 126, the flexed ridge-forming region 138 recoils and swings radially outward, increasing the click sensation. Furthermore, it absorbs dimensional accuracy errors and ensures that the ridge 135 and groove 124 engage securely. ===Other Examples=== In the container (1,101) according to each of the above embodiments, the ridges (35,135) and grooves (24,124) were each formed at two locations 180° apart around the axis 100. However, the ridges (35,135) and grooves (24,124) may be formed at three or more locations at equal angular intervals.

[0038] The container body (2,102) may have other external shapes, such as a rectangular tube, as long as grooves (24,124) are formed in the hollow section (22,122) by ribs (23,123) along the circumference around the axis 100. Similarly, the pump cap (3,103) may have other parts that are not cylindrical, as long as the part corresponding to the third cylindrical section (33,133) inserted into the hollow section (22,122) is cylindrical.

[0039] The ridges (35,135) and grooves (24,124) may not be male and female threads, but rather formed to extend along the circumference of a circle perpendicular to the axis 100. In other words, they may not be part of a helix. In any case, it is sufficient that ridges (35,135) extending in the circumferential direction around the axis 100 are intermittently formed on the cylindrical outer surface of the pump cap (3,103), and grooves (24,124) extending in the circumferential direction around the axis 100, with one end open and the other end closed, are formed on the inner surface of the hollow portion (22,122) of the container body (2,102).

[0040] The container (1,101) in each of the above embodiments was a pump bottle, but a general container such as a canister may also be used as an embodiment. In any case, it is sufficient that the container with a lid has a cylindrical side surface with protrusions (35,135) and projections 36 and gaps 136 forming a click-sensing mechanism between the two slits 37 described above, and that grooves (24,124) that engage with the protrusions (35,135) and protrusions (26,126) that together with the projections 36 and gaps 136 form a click-sensing mechanism. [Explanation of Symbols]

[0041] 1,101 Container (pump bottle), 2,102 Container body, 3,103 Lid (pump cap), 4 Pump unit, 5 Replacement container, 22 Hollow section, 23,123 Ribs, 24,124 Grooves, 26,126 Protrusions, 33,133 Third cylindrical section, 35,135 Protrusion, 36 Projection, 37 Slit, 38,138 ridge formation area, 136 gap

Claims

1. A container comprising a hollow cylindrical container body with a bottom and an opening at the top, and a lid that is detachably attached to the cylindrical inner surface of the container body, The container body has a hollow portion extending downward from the opening, on the cylindrical inner surface, in which multiple grooves are formed at equal angular intervals, encircling the cylindrical axis, with one end open and the other end closed. The cover has a hollow cylindrical portion at its lower end that is open at the bottom and is arranged coaxially with the cylindrical axis. The cylindrical portion has protrusions formed on its outer surface corresponding to each of the grooves formed at multiple locations on the container body, and each of the protrusions is provided in a protrusion-forming region demarcated by two slits formed upward from the lower end of the cylindrical portion. In the aforementioned rib-forming region, a projection is formed that protrudes radially outward with respect to the cylindrical axis. A protrusion is formed inside the groove, projecting radially inward with respect to the cylindrical axis. By inserting the cylindrical portion of the lid into the opening of the container body and rotating the lid, the protrusions corresponding to each groove engage, and the lid is attached to the container body. When the lid is attached to the container body, the ridge-forming region bends radially inward with respect to the cylindrical axis, and the projection overcomes the convex portion. container.

2. The container according to claim 1, wherein the protrusions and projections are individually formed in the protrusion-forming region.

3. The container according to claim 2, wherein the area around the projection is formed to be thin-walled.

4. The container according to claim 1, wherein the aforementioned ridge also serves as the aforementioned projection, and one of the aforementioned ridges is divided into two parts via a gap.

5. The container according to any one of claims 1 to 4, wherein the aforementioned protrusion is a male partial thread.

6. The container according to any one of claims 1 to 4, comprising a replacement container that is detachably attached to the lid and stored inside the container body.

7. The container according to claim 5, comprising a replacement container that is detachably attached to the lid and stored inside the container body.

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