container

Abstract

The present invention provides a container that simplifies the structure of the mold used to form the fitting cylinder. [Solution] A container 1 comprising a fitted cylinder 4 having a vertical groove fitting surface 4a and a fitted cylinder 5 having a vertical rib fitting surface 5a, wherein the fitted cylinder 5 can be attached to the fitted cylinder 4 by a fitting operation in which the vertical rib fitting surface 5a is lowered and fitted to the vertical groove fitting surface 4a, the vertical groove fitting surface 4a having an upwardly open vertical groove 4b and a reversible projection 4c extending downward from the lower end surface 4b1 of the vertical groove 4b, and the vertical rib fitting surface 5a having vertical ribs 5 The container 1 has a b and an overhang projection 5c that is spaced downward from the lower end surface 5b1 of the vertical rib 5b, and when fitted, the overhang projection 5c passes through the vertical groove 4b and overcomes the overhang projection 4c, thereby preventing the fitted cylinder 5 from coming out upward from the fitted cylinder 4, and when the vertical rib 5b is inserted into the vertical groove 4b, it is prevented from rotating on both sides in the circumferential direction, and the overhang projection 5c is provided to fit within the circumferential width range R1 of the vertical rib 5b.

Description

Technical Field

[0001] The present invention relates to a container.

Background Art

[0002] There is a container having a fitting cylinder with a vertical groove fitting surface facing one side in the radial direction and a fitting cylinder with a vertical rib fitting surface facing the other side in the radial direction, and the fitting cylinder can be attached to the fitting cylinder by a fitting operation of lowering and fitting the vertical rib fitting surface with respect to the vertical groove fitting surface. The vertical groove fitting surface has a vertical groove extending in the vertical direction and open upward, and a climbing-over convex portion extending downward from the lower end surface of the vertical groove and protruding toward one side in the radial direction. The vertical rib fitting surface has a vertical rib extending in the vertical direction and having a lower end surface, and a climbing convex portion protruding toward the other side in the radial direction and spaced downward from the lower end surface of the vertical rib. By the fitting operation, the climbing convex portion climbs over the climbing-over convex portion, thereby preventing the fitting cylinder from coming off upward with respect to the fitting cylinder, and when the vertical rib is inserted into the vertical groove, a container is known that is prevented from rotating in both circumferential directions (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In a container as described above, when the vertical rib fitting surface is formed in the molding process of the fitting cylinder and the mold is pulled downward from the vertical rib fitting surface after the formation, it is difficult to pull downward the undercut portion of the mold located above the climbing convex portion by so-called forced extraction, and the structure of the mold may become complicated.

[0005] Therefore, an object of the present invention is to provide a container capable of simplifying the structure of a mold for molding a fitting cylinder.

Means for Solving the Problems

[0006] One embodiment of the present invention is as follows:

[0007] [1] A container comprising a fitted cylinder having a longitudinal groove fitting surface on one radial side of the circumferential surface, and a fitting cylinder having a longitudinal rib fitting surface on the other radial side of the circumferential surface, wherein the fitting cylinder can be attached to the fitted cylinder by a fitting operation in which the longitudinal rib fitting surface is lowered and fitted to the longitudinal groove fitting surface, The longitudinal groove fitting surface has a longitudinal groove that extends vertically and is open upward, and a superimposed projection that extends downward from the lower end surface of the longitudinal groove and protrudes to one side in the radial direction. The longitudinal rib fitting surface has a longitudinal rib extending in the vertical direction and having a lower end surface, and a crossover projection that is spaced downward from the lower end surface of the longitudinal rib and protrudes radially to the other side. As a result of the fitting operation, the overriding projection passes through the vertical groove and overcomes the overriding projection, thereby preventing the fitted cylinder from coming off upward relative to the fitted cylinder, and the vertical rib is inserted into the vertical groove, thereby preventing rotation on both sides in the circumferential direction. The aforementioned overhanging protrusion is provided in a container that fits within the circumferential width range of the longitudinal rib.

[0008] [2] The container according to [1], wherein the longitudinal rib fitting surface does not form an upper surface between the lower end surface of the longitudinal rib and the upper end of the fitting cylinder within the circumferential width range of the longitudinal rib.

[0009] [3] It comprises a container body for containing contents and a dispensing device attached to the container body for dispensing the contents, The dispensing device is a container according to [1] or [2], having the fitted cylinder and the fitted cylinder.

[0010] [4] It has a container body for containing contents and a lid that is attached to the container body, The container body is the container according to [1] or [2], which has the fitting cylinder to be fitted and the fitting cylinder.

[0011] [5] It has a container body for containing the content, and a discharging tool attached to the container body for discharging the content. The container body has one of the fitting cylinder to be fitted and the fitting cylinder. The discharging tool has the other of the fitting cylinder to be fitted and the fitting cylinder. The container according to [1] or [2].

Effect of the Invention

[0012] According to the present invention, it is possible to provide a container that can simplify the structure of the mold for forming the fitting cylinder.

Brief Description of the Drawings

[0013] [Figure 1] It is a cross-sectional view of the container in the first embodiment of the present invention. [Figure 2] It is a partially enlarged view of FIG. 1. [Figure 3] It is a cross-sectional view taken along line A-A of FIG. 2. [Figure 4] It is a side view of the vertical groove fitting surface of FIG. 2 as seen from the radially outer side. [Figure 5] It is a side view of the vertical rib fitting surface of FIG. 2 as seen from the radially inner side. [Figure 6] It is a cross-sectional view of the container in the second embodiment of the present invention. [Figure 7] It is a cross-sectional view of the container in the third embodiment of the present invention.

Modes for Carrying Out the Invention

[0014] Hereinafter, embodiments of the present invention will be illustrated and described with reference to the drawings.

[0015] As shown in FIG. 1, in the first embodiment of the present invention, the container 1 includes a container body 2 for containing contents and a discharging tool 3 attached to the container body 2 for discharging the contents. The container body 2 successively includes a cylindrical mouth portion 2a, a body portion 2b whose diameter expands from the lower end of the mouth portion 2a, and a bottom portion (not shown) connected to the lower end of the body portion 2b. The discharging tool 3 has a cylindrical fitting cylinder 4 having a vertical groove fitting surface 4a on the circumferential surface on one side in the radial direction (the outer side in the radial direction in this embodiment) and centered on the central axis O, and a cylindrical fitting cylinder 5 having a vertical rib fitting surface 5a on the circumferential surface on the other side in the radial direction (the inner side in the radial direction in this embodiment). By a fitting operation of lowering and fitting the vertical rib fitting surface 5a with respect to the vertical groove fitting surface 4a, the fitting cylinder 5 can be attached to the fitting cylinder 4.

[0016] In this embodiment, unless otherwise specified, the direction along the central axis O is referred to as the vertical direction, the direction from the mouth portion 2a of the container body 2 toward the bottom along the vertical direction is referred to as the downward direction, the opposite direction is referred to as the upward direction, the direction orthogonal to the central axis O is referred to as the radial direction, and the direction around the central axis O is referred to as the circumferential direction.

[0017] The discharging tool 3 includes an air cylinder 6a that is attached to the outer circumferential surface of the mouth portion 2a of the container body 2 and is held on the outer side in the radial direction of the mouth portion 2a, a liquid cylinder 6b that is held on the inner side in the radial direction of the mouth portion 2a by being attached to the mouth portion 2a of the air cylinder 6a, an air piston 6c that moves up and down by sliding with respect to the air cylinder 6a, a liquid piston 6d that moves up and down by sliding with respect to the liquid cylinder 6b, an air chamber 6e defined by the air cylinder 6a and the air piston 6c, a liquid chamber 6f defined by the liquid cylinder 6b and the liquid piston 6d, a lifting portion 6g that moves up and down together with the air piston 6c and the liquid piston 6d, and a spring 6h that generates a biasing force for lifting the lifting portion 6g. By the up and down movement of the lifting portion 6g, the liquid contents pumped from the inside of the container body 2 through the liquid chamber 6f and the air pumped from the air chamber 6e are mixed into a foamy state and discharged by a foam discharging pump 6.

[0018] The air cylinder 6a comprises a main body member 6i and an upper cap member 6j attached to the main body member 6i. The main body member 6i comprises a mounting cylinder 6i1 attached to the outer circumferential surface of the opening 2a, an annular air cylinder bottom wall 6i2 extending radially outward from the lower end of the mounting cylinder 6i1, and an air cylinder peripheral wall 6i3 connected to the outer circumferential edge of the air cylinder bottom wall 6i2. The air piston 6c moves up and down by sliding against the inner circumferential surface of the air cylinder peripheral wall 6i3. The upper cap member 6j has an air cylinder outer peripheral wall 6j1 that fits onto the outer peripheral surface of the air cylinder peripheral wall 6i3 so as to restrict upward movement relative to the main body member 6i below the range of motion of the air piston 6c; an annular air cylinder top wall 6j2 that extends radially inward from the upper end edge of the air cylinder outer peripheral wall 6j1 beyond the air cylinder peripheral wall 6i3; a downward restricting portion 6j3 that abuts against the main body member 6i so as to restrict downward movement relative to the main body member 6i; and an inner cylinder portion 6j4 that extends downward from the inner peripheral edge of the air cylinder top wall 6j2. The downward restricting portion 6j3 is formed by the outer peripheral edge of the lower surface of the air cylinder top wall 6j2.

[0019] In this embodiment, the air cylinder peripheral wall 6i3 constitutes a fitted cylinder 4 having a longitudinal groove fitting surface 4a which is the radially outer peripheral surface (outer peripheral surface), and the air cylinder outer peripheral wall 6j1 constitutes a fitted cylinder 5 having a longitudinal rib fitting surface 5a which is the radially inner peripheral surface (inner peripheral surface).

[0020] As shown in Figures 2-4, the longitudinal groove fitting surface 4a has a longitudinal groove 4b that extends vertically and is open upward, and a superimposed projection 4c that extends downward from the lower end surface 4b1 of the longitudinal groove 4b and protrudes radially inward. The longitudinal groove 4b has a pair of groove sides 4b2 that face each other in the circumferential direction, a groove bottom surface 4b3 that connects the radially inward ends of the pair of groove sides 4b2, and a lower end surface 4b1 that connects the pair of groove sides 4b2 along the lower end of the groove bottom surface 4b3 and faces upward. The superimposed projection 4c has the lower end surface 4b1 of the longitudinal groove 4b, a superimposed circumferential surface 4c1 that extends downward from the radially outward end of the lower end surface 4b1 of the longitudinal groove 4b, and a superimposed lower surface 4c2 that extends radially inward from the lower end of the superimposed circumferential surface 4c1. The lower end surface 4b1 of the longitudinal groove 4b faces upward and radially outward.

[0021] As shown in Figures 2, 3, and 5, the longitudinal rib fitting surface 5a has a longitudinal rib 5b that extends in the vertical direction and has a lower end surface 5b1, and an overhanging projection 5c that is spaced downward from the lower end surface 5b1 of the longitudinal rib 5b and protrudes radially inward. The longitudinal rib 5b has a pair of rib side surfaces 5b2 that face in different directions in the circumferential direction, a rib circumferential surface 5b3 that connects the radially inward ends of the pair of rib side surfaces 5b2, and a lower end surface 5b1 that connects the pair of rib side surfaces 5b2 along the lower end of the rib circumferential surface 5b3 and faces downward. The overhanging projection 5c has a pair of convex side surfaces 5c1 facing in different directions in the circumferential direction, a convex upper surface 5c2 connecting the upper ends of the pair of convex side surfaces 5c1, a convex lower surface 5c3 connecting the lower ends of the pair of convex side surfaces 5c1, and a convex circumferential surface 5c4 connecting the pair of convex side surfaces 5c1 along the radially inward ends of the convex upper surface 5c2 and the convex lower surface 5c3. The convex lower surface 5c3 of the overhanging projection 5c faces downward and radially inward.

[0022] In the assembly process, when the container 1 is fitted to the fitted cylinder 4 by the fitting operation, the overhanging projection 5c passes through the vertical groove 4b and overhangs the overhanging projection 4c, causing the upper surface 5c2 of the overhanging projection 5c to catch on the overhanging lower surface 4c2 of the overhanging projection, preventing the fitted cylinder 5 from coming off upward relative to the fitted cylinder 4, and when the vertical rib 5b is inserted into the vertical groove 4b, the pair of rib sides 5b2 of the vertical rib 5b face the pair of groove sides 4b2 of the vertical groove 4b, preventing rotation on both sides in the circumferential direction.

[0023] The longitudinal groove fitting surface 4a has multiple sets of longitudinal grooves 4b and overriding protrusions 4c arranged at intervals in the circumferential direction. The longitudinal rib fitting surface 5a has multiple sets of longitudinal ribs 5b and overriding protrusions 5c arranged at intervals in the circumferential direction, corresponding to the positions of the sets of longitudinal grooves 4b and overriding protrusions 4c. Note that there only needs to be at least one set each of longitudinal grooves 4b and overriding protrusions 4c, and longitudinal ribs 5b and overriding protrusions 5c.

[0024] The upper cap member 6j having a fitting cylinder 5 and the main body member 6i having a fitted cylinder 4 are each formed by injection molding using resin material.

[0025] The overhanging protrusion 5c is provided so as to fit within the circumferential width range R1 of the longitudinal rib 5b. That is, in a bottom view, it is provided so as to fit between one end in the circumferential direction and the other end in the circumferential direction of the longitudinal rib 5b (preferably the lower end of the longitudinal rib 5b).

[0026] The longitudinal groove fitting surface 4a has a lower fitting surface 4d that recesses the longitudinal groove 4b radially inward and has an inner diameter flush with the overriding circumferential surface 4c1 of the overriding protrusion 4c, and an upper fitting surface 4e that has a smaller inner diameter than the lower fitting surface 4d and extends from the upper end of the lower fitting surface 4d to the upper end of the longitudinal groove fitting surface 4a. The lower fitting surface 4d has an annular step portion 4d3 consisting of an annular lower surface 4d1 including the overriding lower surface 4c2 and an outer circumferential surface 4d2 extending downward from the radially inward end of the annular lower surface 4d1, and the upper fitting surface 4e is flush with the upper end of the groove bottom surface 4b3 of the longitudinal groove 4b.

[0027] The vertical rib fitting surface 5a has a lower fitting surface 5d that causes the vertical rib 5b and the overhanging projection 5c to protrude radially inward, and an upper fitting surface 5e that has a smaller inner diameter than the lower fitting surface 5d and extends from the upper end of the lower fitting surface 5d to the upper end of the vertical rib fitting surface 5a. The upper fitting surface 5e is flush with the upper end of the rib circumferential surface 5b3 of the vertical rib 5b. In this way, the vertical rib fitting surface 5a does not form an upper surface between the lower end surface 5b1 of the vertical rib 5b and the upper end of the fitting cylinder 5 within the circumferential width range R1 of the vertical rib 5b. In addition, the projection circumferential surface 5c4 of the overhanging projection 5c is provided so as to fit within the radial width range R2 of the vertical rib 5b.

[0028] When attaching the upper cap member 6j to the main body member 6i by fitting operation, first the fitting cylinder 5 is lowered relative to the fitted cylinder 4, and the overhanging projection 5c is inserted into the vertical groove 4b from above, so that the lower surface 5c3 of the overhanging projection 5c, which faces downward and radially inward, comes into contact with the lower end surface 4b1 of the vertical groove 4b, which faces upward and radially outward, and then pushed further downward, the overhanging projection 5c is elastically deformed and attached to the overhanging projection 4c.

[0029] According to this embodiment, since the overhanging projection 5c is provided so as to fit within the circumferential width range R1 of the vertical rib 5b, compared to the case where the overhanging projection 5c is provided so as to extend beyond the circumferential width range R1 of the vertical rib 5b, when the mold is removed downward from the vertical rib fitting surface 5a after the vertical rib fitting surface 5a has been formed during the molding process of the fitting cylinder 5, the undercut width (radial width) of the undercut portion of the mold that overhangs the overhanging projection 5c downward is reduced by the radial width of the vertical rib 5b in the portion where the vertical rib 5b is formed. This makes so-called forced removal easier and simplifies the structure of the mold. Furthermore, in this embodiment, since the vertical rib fitting surface 5a does not form an upper surface between the lower end surface 5b1 of the vertical rib 5b and the upper end of the fitting cylinder 5 within the circumferential width range R1 of the vertical rib 5b, the undercut width of the undercut portion of the mold is further reduced, making forced removal even easier and further simplifying the structure of the mold. Furthermore, in the case of a configuration as in this embodiment in which the circumferential surface 5c4 of the overhanging projection 5c is contained within the radial width range R2 of the vertical rib 5b, the vertical length of the undercut portion of the mold is limited to the length between the lower end surface 5b1 of the vertical rib 5b and the upper surface 5c2 of the overhanging projection 5c, thus further improving the above effect.

[0030] Furthermore, after assembling the fitted cylinder 5 to the fitted cylinder 4, the radial rigidity of the fitted cylinder 5 is improved above the overhanging projection 5c by the vertical rib 5b, thereby improving the fitting force of the overhanging projection 5c to the overhanging projection 4c and reducing the wall thickness of the fitted cylinder 5.

[0031] The container 1 is not limited to the configuration in this embodiment in which the dispensing device 3 has a fitted cylinder 4 and a fitted cylinder 5, but may also be configured in the second embodiment shown in Figure 6 in which the container body 2 has a fitted cylinder 4 and a fitted cylinder 5. Furthermore, the container 1 is not limited to the configuration in this embodiment in which the dispensing device 3 has, but may also be configured in the second embodiment in which the container body 2 that contains the contents and a lid 7 that is attached to the container body 2.

[0032] Furthermore, the configuration is not limited to the first embodiment, where the vertical groove fitting surface 4a is the radially outer circumferential surface of the fitted cylinder 4 and the vertical rib fitting surface 5a is the radially inner circumferential surface of the fitted cylinder 5. Instead, the configuration may be as in the second embodiment, where the vertical groove fitting surface 4a is the radially inner circumferential surface of the fitted cylinder 4 and the vertical rib fitting surface 5a is the radially outer circumferential surface of the fitted cylinder 5.

[0033] In the second embodiment, the container body 2 includes an outer container 2c, an inner container 2d, and a replacement container 2e. The outer container 2c has a fitting cylinder 4, and the inner container 2d has a fitting cylinder 5, and is mounted inside the outer container 2c by a fitting operation. The replacement container 2e contains contents such as paste, powder, or solid, and is detachably mounted inside the inner container 2d. The lid 7 is detachably mounted on the inner container 2d. In this embodiment, the fitting cylinder 4 is provided on the radially outer side of the fitting cylinder 5, the vertical groove fitting surface 4a is the inner circumferential surface of the fitting cylinder 4, and the vertical rib fitting surface 5a is the outer circumferential surface of the fitting cylinder 5. Alternatively, the fitting cylinder 4 may be provided on the radially inner side of the fitting cylinder 5, the vertical groove fitting surface 4a may be the outer circumferential surface of the fitting cylinder 4, and the vertical rib fitting surface 5a may be the inner circumferential surface of the fitting cylinder 5.

[0034] The outer container 2c has a cylindrical outer peripheral wall 2c1, a bottom wall 2c2 connected to the lower end of the outer peripheral wall 2c1, and a fitting cylinder 4 extending upward from the bottom wall 2c2. The inner container 2d has a cylindrical lower outer wall portion 2d1 arranged along the inner circumferential surface of the outer peripheral wall 2c1, an upper outer wall portion 2d2 extending upward from the upper end of the lower outer wall portion 2d1 and exposed from the outer peripheral wall 2c1 of the outer container 2c, a bottomed cylindrical inner wall portion 2d3 connected to the upper outer wall portion 2d2 and centered on the central axis O, a fitting cylinder 5 extending downward from the inner wall portion 2d3, and a downward restricting portion 2d4 that abuts against the outer container 2c so as to restrict its downward movement relative to the outer container 2c. The downward restricting portion 2d4 is formed by the lower surface of a protruding portion 2d5 that protrudes radially outward from the upper end of the lower outer wall portion 2d1. The lower surface of the protruding portion 2d5 abuts against the upper surface of the annular stepped portion 2c3, which recesses the inner peripheral edge of the upper end surface of the outer peripheral wall 2c1 of the outer container 2c downwards.

[0035] The replacement container 2e has a bottomed cylindrical main body 2e1 positioned inside the inner wall portion 2d3 of the inner container 2d, a flange portion 2e2 extending radially outward from the upper end of the main body portion 2e1, and a fitting portion 2e3 extending downward from the outer peripheral edge of the flange portion 2e2 and detachably fitted to the outer peripheral surface of the upper end of the inner wall portion 2d3. The lid 7 has an outer peripheral wall portion 7a that is detachably attached to the outer peripheral surface of the upper outer wall portion 2d2 by screwing, and a top wall portion 7b connected to the upper end of the outer peripheral wall portion 7a. The top wall portion 7b has a top wall body 7b1 formed integrally with the outer peripheral wall portion 7a, and a packing 7b2 held on the lower surface of the top wall body 7b1.

[0036] In this embodiment, the inner container 2d having the fitting cylinder 5 and the outer container 2c having the fitted cylinder 4 are each formed by injection molding using a resin material.

[0037] As shown in the third embodiment in Figure 7, the container 1 may have a container body 2 for containing contents and a dispensing device 3 attached to the container body 2 for dispensing contents, the container body 2 may have a fitted cylinder 4 and the dispensing device 3 may have a fitted cylinder 5. In this embodiment, the fitted cylinder 4 is provided on the radially inner side of the fitted cylinder 5, the vertical groove fitting surface 4a is the outer circumferential surface of the fitted cylinder 4 and the vertical rib fitting surface 5a is the inner circumferential surface of the fitted cylinder 5. Alternatively, the container body 2 may have a fitted cylinder 5 and the dispensing device 3 may have a fitted cylinder 4, the fitted cylinder 4 is provided on the radially outer side of the fitted cylinder 5, the vertical groove fitting surface 4a is the inner circumferential surface of the fitted cylinder 4 and the vertical rib fitting surface 5a is the outer circumferential surface of the fitted cylinder 5.

[0038] In this embodiment, the dispensing device 3 is a dispensing cap 8 having a dispensing port 8a for dispensing the contents of the container body 2. In this embodiment, the container body 2 has a cylindrical mouth portion 2a centered on a central axis O, a body portion 2b that widens in diameter from the lower end of the mouth portion 2a, and a bottom portion (not shown) connected to the lower end of the body portion 2b, connected in this order. The dispensing cap 8 has a dispensing port 8a and an inner stopper 8b that is attached to the mouth portion 2a, and a lid member 8c that is detachably attached to the inner stopper 8b and covers the dispensing port 8a. In this embodiment, the contents are liquid, for example, detergent.

[0039] The inner stopper 8b has a mounting cylinder 8d that is attached to the outer circumferential surface of the mouth portion 2a, and a top wall 8e that extends radially inward from the upper end of the mounting cylinder 8d to form the discharge port 8a. The lid member 8c is detachably attached by screwing to the outer circumferential surface of a mounting wall 8f that extends upward from the outer circumferential edge of the top wall 8e. The top wall 8e has a downward restricting portion 8e1 that abuts against the container body 2 so as to restrict its downward movement relative to the container body 2. The downward restricting portion 8e1 is formed by the lower surface of the annular wall 8e2, which is the outer circumferential edge of the top wall 8e. The lower surface of the annular wall 8e2 abuts against the upper end surface of the mouth portion 2a.

[0040] The top wall 8e has a cylindrical portion 8e3 that extends downward from the inner peripheral edge of the annular wall 8e2 and contacts the inner peripheral surface of the upper end of the mouth portion 2a, a liquid receiving portion 8e4 that extends radially inward from the lower end of the cylindrical portion 8e3, and a discharge pipe 8e5 that extends upward from the inner peripheral edge of the liquid receiving portion 8e4. The discharge pipe 8e5 has a trough shape with a notch 8e6 extending vertically on its side, and the upper end of the discharge pipe 8e5 forms the discharge port 8a. After discharge, the contents that were received by the liquid receiving portion 8e4 travel along the outer peripheral surface of the discharge pipe 8e5 and return to the container body 2 through the notch 8e6 of the discharge pipe 8e5.

[0041] In this embodiment, the mouth portion 2a of the container body 2 constitutes a fitted cylinder 4 having a longitudinal groove fitting surface 4a which is the radially outer circumferential surface (outer circumferential surface), and the mounting cylinder 8d of the inner stopper 8b constitutes a fitted cylinder 5 having a longitudinal rib fitting surface 5a which is the radially inner circumferential surface (inner circumferential surface).

[0042] In this embodiment, the inner stopper 8b having the fitting cylinder 5 is formed by injection molding using a resin material. The container body 2 having the fitted cylinder 4 is formed by biaxial stretch blow molding a preform formed by injection molding using a resin material.

[0043] Although embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and the embodiments described above can be modified in various ways without departing from the spirit of the present invention. [Explanation of Symbols]

[0044] 1 container 2. Container body 2a Mouth 2b Torso 2c outer container 2c1 Outer wall 2c2 bottom wall 2c3 Annular step section 2d inner container 2d1 Lower outer wall 2d2 Upper outer wall 2d3 Inner wall 2d4 Lowering regulation part 2d5 protrusion 2e Replacement container 2e1 Main body 2e2 Flange section 2e3 Mating part 3 Dispensing tool 4 Mated cylinder 4a Longitudinal groove mating surface 4b Longitudinal groove 4b1 Lower end surface 4b2 groove side 4b3 Bottom of groove 4c Overridden protrusion 4c1 Surface to be overridden 4c2 Underside of the object being stepped on 4d Lower mating surface 4d1 Annular lower surface 4d2 Outer surface 4d3 Annular step 4e Upper mating surface 5. Fitting cylinder 5a Longitudinal rib mating surface 5b Vertical ribs 5b1 Lower end surface 5b2 Rib side 5b3 Rib circumferential surface 5c Overhanging protrusion 5c1 Side view of the protruding part 5c2 Upper surface of the convex part 5c3 Lower surface of the protrusion 5c4 Convex circumferential surface 5d Lower mating surface 5e Upper mating surface 6. Foam dispensing pump 6a Air Cylinder 6b Liquid cylinder 6c Air Piston 6d Liquid piston 6e Air chamber 6f liquid chamber 6g lifting mechanism 6h spring 6i Main Unit Components 6i1 mounting tube 6i2 Air Cylinder Bottom Wall 6i3 Air cylinder peripheral wall 6j Upper cap component 6J1 Air Cylinder Outer Wall 6J2 Air Cylinder Top Wall 6j3 Lowering regulation section 6j4 Inner cylinder part 7 Lid 7a Outer wall 7b Top wall 7b1 Main body of the top wall 7b2 packing 8. Dispensing cap 8a Discharge port 8b Inner stopper 8c Lid member 8d mounting tube 8e Ceiling wall 8e1 Lowering regulation part 8e2 Ring Wall 8e3 Cylindrical part 8e4 Liquid receiving section 8e5 Discharge tube 8e6 Notch 8f mounting wall O center axis R1 Circumferential width range R2 Radial width range

Claims

1. A container comprising a fitted cylinder having a longitudinal groove fitting surface on one radial side of the circumferential surface, and a fitting cylinder having a longitudinal rib fitting surface on the other radial side of the circumferential surface, wherein the fitting cylinder can be attached to the fitted cylinder by a fitting operation in which the longitudinal rib fitting surface is lowered and fitted to the longitudinal groove fitting surface, The longitudinal groove fitting surface has a longitudinal groove that extends vertically and is open upward, and a superimposed projection that extends downward from the lower end surface of the longitudinal groove and protrudes to one side in the radial direction. The longitudinal rib fitting surface has a longitudinal rib extending in the vertical direction and having a lower end surface, and a crossover projection that is spaced downward from the lower end surface of the longitudinal rib and protrudes radially to the other side. As a result of the fitting operation, the overriding projection passes through the vertical groove and overcomes the overriding projection, thereby preventing the fitted cylinder from coming off upward relative to the fitted cylinder, and the vertical rib is inserted into the vertical groove, thereby preventing rotation on both sides in the circumferential direction. The aforementioned overhanging protrusion is provided in a container that fits within the circumferential width range of the longitudinal rib.

2. The container according to claim 1, wherein the longitudinal rib fitting surface does not form an upper surface between the lower end surface of the longitudinal rib and the upper end of the fitting cylinder within the circumferential width range of the longitudinal rib.

3. It comprises a container body for containing contents and a dispensing device attached to the container body for dispensing the contents, The container according to claim 1, wherein the dispensing device has the fitted cylinder and the fitted cylinder.

4. It has a container body for containing contents and a lid that is attached to the container body, The container according to claim 1, wherein the container body has the fitted cylinder and the fitted cylinder.

5. It comprises a container body for containing contents and a dispensing device attached to the container body for dispensing the contents, The container body has one of the fitted cylinder and the fitted cylinder, The container according to claim 1, wherein the dispensing device has the fitted cylinder and the other of the fitted cylinder.

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