A container with a lid, and a method for assembling a container with a lid.

Abstract

The present invention provides a container with a lid equipped with a free-stop mechanism that can prevent malfunctions caused by frequent opening and closing operations or changes over time. [Solution] The container 1 is formed by a hinge connecting a container body 2 and a lid 3, which have a pivot axis in the left-right direction. The container body and lid have a notch 23 and a protrusion 34 formed at one front and one rear end of the container body and lid, which engage with each other, a through hole 25 that connects to the notch, a recess 35 formed in the protrusion, and a pin 5 which has a first cylindrical part 51 that is not rotatably inserted into the through hole and a second cylindrical part 52 into which a hollow cylindrical stop material 6 is attached and inserted into the recess, which are coaxially connected. In the recess, the pin has a first hollow part 35a that is inserted together with the stop material and a second hollow part 35b into which a region protruding from the stop material is inserted, which are coaxially continuous. The stop material has an outer circumferential surface that is rotatable with frictional force against the inner circumferential surface of the first hollow part, and the other left and right end faces 62 are pressed against the step surface 36 between the first hollow part and the second hollow part.

Description

Technical Field

[0001] The present invention relates to a container with a lid and a method for assembling the container with a lid.

Background Art

[0002] Some containers with lids having a lid body that opens and closes the opening of the container body by a hinge are provided with a free stop mechanism for fixing the lid body at an arbitrary angle. The free stop mechanism fixes the lid body at an arbitrary position using, for example, the frictional force between a pin serving as the rotation axis of the hinge and a shaft hole into which the pin is inserted. Further, Patent Document 1 below describes a housing having a hinge mechanism in which a hinge pin is inserted into pin holes formed in the housing body and the lid body, respectively. In the free stop mechanism in the housing, with a tube of an elastic member inserted into a pin hole formed in a protrusion of the lid body, the pin holes of the housing body and the lid body are assembled to be coaxial with each other, and a hinge pin made of a hard material is press-fitted from the outer end side of the pin hole of the housing body. In a state where the hinge pin is completely inserted into the pin hole of the housing body, the outer peripheral surface of the hinge pin adheres to the inner peripheral surface of the tube of the elastic member, and the tube of the elastic member is pressed and elastically deformed to generate a frictional force between the inner peripheral surface of the pin hole of the lid body.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the free-stop mechanism described in Patent Document 1, an elastic tube is fitted into the axial hole (pin hole), and a pin is attached to the tube in a tight seal. As the lid rotates, a frictional force is generated between the outer surface of the tube and the inner surface of the axial hole. In other words, the pin rotates around the axis of rotation together with the elastic body as the lid opens and closes. Therefore, in the free-stop mechanism described in Patent Document 1, the frictional force between the outer surface of the elastic body and the inner surface of the pin hole generates a force that tries to rotate the pin in the opposite direction to the rotation of the lid. If a pin made of a hard material is to be rotated inside a soft elastic tube, the inner surface of the tube will wear down due to the frequent opening and closing of the lid. In addition, the elasticity of the tube deteriorates over time. As a result, the pin spins freely inside the tube, and the free-stop mechanism malfunctions.

[0005] Furthermore, in the free-stop mechanism of the housing described in Patent Document 1, the tube is pre-assembled into the pin hole before the pin is inserted. However, when inserting a hard pin into a soft, elastic tube, a strong axial frictional force is generated on the inner surface of the tube, making it difficult to insert the pin smoothly.

[0006] Therefore, the present invention aims to provide a lidded container equipped with a free-stop mechanism that is easy to assemble and resistant to deterioration over time, and a method for assembling the same. [Means for solving the problem]

[0007] One aspect of the present invention for achieving the above objective is a container comprising a container body having an opening for storing contents, and a lid connected to the container body via a hinge and covering the opening in a manner that can be opened and closed, The axis of rotation of the aforementioned hinge is set in the left-right direction. With reference to the state in which the lid is closed, the rotation axis is located on one end in the front-to-back direction, which is perpendicular to the left-to-right direction. The hinge comprises a notch formed on one end of either the container body or the lid, a through hole formed coaxially with the rotation axis and connecting to the notch, a protrusion formed on the other end of either the container body or the lid to engage with the notch, a recess formed coaxially with the rotation axis and formed in the protrusion, a pin inserted through the through hole with its tip inserted into the recess, and a hollow cylindrical stop material attached to the pin. The pin is formed coaxially with a cylindrical first cylindrical portion formed on the base end side and a cylindrical second cylindrical portion formed on the tip side of the pin, which is smaller in diameter than the first cylindrical portion. The stop material is installed in a press-fitted state within the second cylindrical portion, with one end face located at the base end of the second cylindrical portion and the tip of the pin protruding from the other end face. The first cylindrical portion is inserted through the through hole, and the second cylindrical portion is inserted into the recess. The interior of the recess consists of a cylindrical first hollow portion into which the region in the second cylindrical portion into which the stop material is attached is inserted, and a cylindrical second hollow portion into which the region on the tip side of the pin that protrudes from the stop material, which is smaller in diameter than the first hollow portion, is inserted, both of which are coaxially continuous. The first cylindrical portion is fixed in a manner that prevents it from rotating with respect to the through hole. The stop material has an outer circumferential surface that is rotatably in close contact with the inner circumferential surface of the first hollow portion with frictional force, and the other left and right end faces are in contact with the stepped surface that forms the boundary between the first hollow portion and the second hollow portion while pressing against it. It is a container with a lid.

[0008] The first cylindrical portion has multiple ribs formed around the axis of rotation that protrude radially outward and extend in the direction of the axis of rotation. The inner circumferential surface of the through hole may be formed with a groove that engages with the rib and extends in the direction of the rotation axis, and the container may have a lid.

[0009] The first cylindrical portion and the second cylindrical portion are connected via an annular portion that protrudes radially outward and rotates around the axis of rotation. The annular portion has an inclined surface that starts with the outer diameter of the first cylindrical portion as its maximum diameter and decreases toward the second cylindrical portion, reaching a minimum diameter that is larger than the outer diameter of the second cylindrical portion. The through hole has inner openings on the left and right sides that face the notch, which are smaller in diameter than the outer openings on the left and right sides, and the diameter of these inner openings is smaller than the maximum outer diameter of the annular portion. The annular portion and the second cylindrical portion protrude from the through hole, and the pin is restricted from deviating outwards to the left and right. The stop material is held in a compressed state in the direction of the rotation axis between the interface between the annular portion and the second cylindrical portion and the surface of the step in the recess. It can also be made into a container with a lid.

[0010] Furthermore, the method for assembling a container with a lid is also within the scope of the present invention, and the said assembly method is An engagement step of engaging the notch and the protrusion so that the through hole and the recess are coaxial, A pin insertion step involves inserting the pin into the coaxially arranged through hole and recess from the left and right outer sides, Includes, In the pin insertion step, the annular portion is made to protrude from the through hole by elastically deforming at least one of the left and right inner openings in the through hole and the annular portion of the pin in the radial direction. This is how to assemble a container with a lid. [Effects of the Invention]

[0011] The present invention provides a lidded container equipped with a free-stop mechanism that can prevent malfunctions due to frequent opening and closing operations or changes over time, and a method for assembling the same. Further effects will be described below. [Brief explanation of the drawing]

[0012] [Figure 1A] This figure shows the external appearance of a lidded container according to the embodiment, and indicates the open state when the lid is opened. [Figure 1B]It is a view showing the appearance of the container with a lid according to the embodiment, and shows the closed state when the lid is closed. [Figure 2] It is an exploded perspective view showing the component configuration of the container according to the embodiment. [Figure 3A] It is a perspective view showing the structure of the pin included in the container according to the embodiment. [Figure 3B] It is a cross-sectional view showing the structure of the above pin. [Figure 4] It is a view showing the specific structure of the hinge in the container according to the embodiment. [Figure 5] It is a view showing the engagement state between the through hole formed in the container body constituting the container according to the embodiment and the above pin. [Figure 6] It is an exploded perspective view showing the component configuration of the container according to other embodiments.

Mode for Carrying Out the Invention

[0013] 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. For parts denoted by reference numerals in a certain drawing, they may not be denoted by reference numerals in other drawings if they are not necessary. ===Embodiment=== As a container with a lid according to an embodiment of the present invention, a cosmetic compact container in which a fleece stop mechanism is adopted for the hinge and the lid can be fixed at an arbitrary angle is exemplified. FIGS. 1A and 1B show the appearance of the container with a lid (hereinafter sometimes referred to as "container 1"). As shown in FIG. 1A, the container 1 according to the embodiment includes a container body 2 for storing contents such as cosmetics, and a lid 3 that opens and closes the opening 21 of the container body 2 by a hinge. FIG. 1A shows the container 1 when the lid 3 is in the open state, and FIG. 1B shows the container 1 when the lid 3 is in the closed state.

[0014] Here, the three mutually orthogonal directions are defined as the front-to-back direction, the left-to-right direction, and the up-and-down direction, and these three directions for the container body 2 and the lid 3 are defined individually based on the closed state. The front-to-back direction and the left-to-right direction are defined by assuming that the openings (21, 31) of the container body 2 and the lid 3 are rectangular in shape with sides in the front-to-back and left-to-right directions, and that the container body 2 and the lid 3 are connected at the rear end by a hinge having a rotation axis (hereinafter sometimes referred to as "axis 100") in the left-to-right direction. Furthermore, the up-and-down direction is defined by assuming that the bottom surface of the container body 2 is facing downwards in the closed state. Therefore, the lid 3 is a flat box shape with a top surface at the top and an open bottom. The up-and-down direction and the front-to-back direction of the lid 3 in the open state are independent of the up-and-down direction and the front-to-back direction of the container body 2. In the following figures, including Figures 1A and 1B, the up / down, front / back, and left / right directions of the container body 2 are indicated by solid double-headed arrows, while the up / down, front / back, and left / right directions of the lid 3 are indicated by dashed double-headed arrows.

[0015] The container body 2 is a flat, box-shaped container with a bottom, made of resin (e.g., PET). The lid 3 is a flat, box-shaped container with its top surface facing downwards, and is made of the same material as the container body 2. A mirror 32 is attached to the inner top surface of the lid 3. As shown in Figure 1A, a hook 33 protruding downwards is formed at the front end of the lid 3, and a locking piece 22 that engages with the hook 33 is formed on the front end surface of the container body 2. When closed, the hook 33 and the locking piece 22 engage to prevent the lid 3 from opening unintentionally.

[0016] Figure 2 shows a diagram of the container 1 when disassembled into its individual parts. As shown in Figure 2, the rear end of the container body 2 has a notch 23 that is open to the rear and cut out in a wide U-shape on both sides. Through holes 25 that penetrate in the left-right direction are formed in the portions 24 that protrude to the rear at both ends of this notch 23, so as to be coaxial with the hinge axis 100. In other words, the portions 24 that protrude on both the left and right sides of the rear end of the container body 2 correspond to the shaft cylinder on the container body 2 side of the hinge.

[0017] On the other hand, a protrusion 34 is formed at the rear end of the lid 3, which is shaped to engage with the notch 23 of the container body 2. Furthermore, recesses 35 are formed on both the left and right end faces of the protrusion 34 at positions corresponding to the through hole 25, with the left-right direction being the depth direction. In other words, the protrusion 34 corresponds to the shaft cylinder on the lid 3 side of the hinge.

[0018] In the container 1 according to the embodiment, the hinge is composed of a notch 23 and a through hole 25 in the container body 2, a convex portion 34 and a concave portion 35 in the lid 3, and a pin 5 and a hollow cylindrical member (hereinafter sometimes referred to as "stop material 6") that is press-fitted onto the pin 5 and inserted in a tightly fitted state. In this configuration, for example, PET can be used as the material for the container body 2, the lid 3, and the pin 5. For example, elastomer, PET, or a mixture thereof can be used as the material for the stop material 6.

[0019] Next, the hinge's free-stop mechanism will be described. First, the structure of pin 5 will be described. Figure 3A is a perspective view of pin 5 with the stop material 6 attached, and Figure 3B is a cross-sectional view of pin 5 when cut across the plane including the axis 100. As shown in Figures 3A and 3B, the general external shape of pin 5 is generally a hollow, two-stage cylindrical shape with a dome-shaped tip. The cylindrical region at the base end (hereinafter sometimes referred to as the "first cylindrical portion 51") and the cylindrical region that is smaller in diameter than the first cylindrical portion 51 (hereinafter sometimes referred to as the "second cylindrical portion 52") are connected via a frustoconical portion (hereinafter sometimes referred to as the "annular portion 53") that protrudes in an annular shape around the axis 100 and has a slope that gradually decreases in diameter towards the tip.

[0020] If the diameter of the first cylindrical portion 51 is φa and the diameter of the second cylindrical portion 52 is φb, then the diameter φc at the tip side of the annular portion 53 that connects to the second cylindrical portion 52 is φb < φc, and the boundary between the annular portion 53 and the second cylindrical portion 52 is an annular step 54 when viewed from the tip side to the base side of the pin 5. In this embodiment, four ribs 55 are formed on the outer circumferential surface of the first cylindrical portion 51, projecting radially outward and extending in the direction of the axis 100 from the base end of the pin 5 to the annular portion 53, at equal angular intervals around the axis 100. In addition, the maximum diameter φd of the pin 5 including the ribs 55 is larger than the diameter φe at the base side that connects to the first cylindrical portion 51 in the annular portion 53 (φd > φe).

[0021] The hollow cylindrical stop material 6 is attached to the base end of the second cylindrical portion 52, and the end face of the stop material 6 on the annular portion 53 side (hereinafter sometimes referred to as the "base end face 61") abuts against the surface of the annular step 54 on the pin 5. Furthermore, the length of the stop material 6 in the axial direction 100 is shorter than the length of the second cylindrical portion 52, and the tip side of the pin 5 protrudes further forward than the end face of the stop material 6 opposite to the base end face 61 (hereinafter sometimes referred to as the "tip face 62"). In this embodiment, the outer diameter φf of the stop material 6 is approximately equal to the diameter φc on the tip side of the annular portion (φf ≈ φc), and is smaller than the diameter φe on the base end side of the annular portion 53, which is the largest diameter of the annular portion 53 of the pin 5 (φe < φf).

[0022] Figure 4 shows a more detailed structure of the hinge. Figure 4 is a view of the cross-section of the container 1 with the lid 3 in the closed position, when it is cut by a plane including the axis 100 in the vertical and horizontal directions, as seen from the rear. It is an enlarged view of the area indicated by the dotted cylinder 101 in Figure 1B. As shown in Figure 4, the notch 23 of the container body 2 and the convex portion 34 of the lid 3 are engaged such that the through hole 25 and the concave portion 35 are coaxial. The pin 5 has the region of the first cylindrical portion 51 inserted through the through hole 25, and the region of the ring portion 53 towards the tip is inserted into the concave portion 35. The inner opening diameter φg on the left and right sides of the through hole 25 on the notch 23 side is smaller than the outer opening diameter φh on the left and right sides (φg < φh). The region of the first cylindrical portion 51 of the pin 5 is housed in the through hole 25, and the ring portion 53 and the second cylindrical portion 52 protrude from the inner openings on the left and right sides of the through hole 25. Furthermore, the inner opening diameters φg on the left and right sides of the through hole 25 are smaller than the maximum diameter φe of the annular portion 53 of the pin 5 (φg < φe). In other words, the pin 5 is inserted into the through hole 25 so that it cannot be pulled out in the left or right outward direction. The pin 5 is fixed within the through hole 25 in the region of the first cylindrical portion 51 and is not rotatable relative to the through hole 25. In this embodiment, as shown in Figure 2, portions (hereinafter sometimes referred to as "protruding portions 26") that protrude radially inward within the through hole 25 and extend in the direction of the axis 100 are formed at equal angular intervals around the axis 100. As a result, grooves 27 are formed between adjacent protruding portions 26 around the axis 100. The ribs 55 formed on the outer circumferential surface of the first cylindrical portion 51 of the pin 5 engage with these grooves 27, thereby preventing the pin 5 from rotating relative to the container body. Figure 5 shows the engagement state between the ribs 55 of the pin 5 and the grooves 27 of the through hole 25 when the container 1 is viewed from the left and right directions. Of course, the engagement structure is not limited to the ribs 55 and grooves 27; the pin 5 may also be fixed so as not to rotate relative to the container body 2 by, for example, bonding the first cylindrical portion 51 of the pin 5 to the inner circumferential surface of the through hole 25.

[0023] In pin 5, the recess 35 of the lid 3 into which the region protruding from the through hole 25 is inserted has a two-stage cylindrical inner surface shape consisting of a cylindrical hollow portion at the open end (hereinafter sometimes referred to as the "first hollow portion 35a") and a cylindrical hollow portion that is smaller in diameter at the inner side relative to the first hollow portion 35a (hereinafter sometimes referred to as the "second hollow portion 35b"). The boundary between the first hollow portion 35a and the second hollow portion 35b is an annular step 36 when viewed from the left and right outward direction to the left and right inward direction.

[0024] The first hollow portion 35a of the recess 35 houses the pin 5 from the annular portion 53 to the region of the second cylindrical portion 52 where the stop material 6 is attached, with the tip surface 62 of the stop material 6 in contact with the surface of the step 36 that forms the boundary between the first hollow portion 35a and the second hollow portion 35b. The second hollow portion 35b houses the region of the pin 5 from the tip surface 62 onwards in the second cylindrical portion 52. The opening of the recess 35 is tapered to follow the inclined side surface of the frustoconical annular portion 53 of the pin 5.

[0025] In the hinge with the above configuration, the stop material 6 is fitted into the recess 35 with the pin 5 inserted through it, and is fixed to the pin 5 so as not to rotate. On the other hand, the stop material 6 is inserted into the inner circumferential surface of the recess 35 in a rotatable manner while being pressed radially outward. That is, a free-stop mechanism is formed using the frictional force between the outer circumferential surface of the stop material 6 and the inner circumferential surface of the recess 35. Furthermore, in the container 1 of this embodiment, the base end surface 61 of the stop material 6 abuts against the surface of the step 54 which is the boundary between the annular portion 53 and the second cylindrical portion 52 of the pin 5, and the tip surface 62 abuts against the surface of the step 36 which is the boundary between the first hollow portion 35a and the second hollow portion 35b in the recess 35, and the stop material 6 is held in a compressed state in the left-right direction by these two stepped surfaces (54, 36). Therefore, the free-stop mechanism in the container 1 of this embodiment also utilizes the frictional force between the tip surface 62 of the pin 5 in the stop material 6 and the surface of the step 36 in the recess 35.

[0026] The assembly procedure for container 1 involves first pressing the pin 5 into the stop material 6, and then inserting the pin 5 into the through hole 25 from the left and right outer sides. During this process, when the tip of the annular portion 53 comes into contact with the left and right inner openings of the through hole 25, the annular portion 53 is pressed radially inward and elastically deformed, passing through the left and right inner openings of the through hole 25. As a result, the pin 5 is incorporated into the hinge in a way that prevents it from coming loose, and container 1 is completed. Depending on the hardness of the material constituting the pin 5, it may be difficult for the annular portion 53 to pass through the left and right inner openings of the through hole 25 when inserting the pin 5 into the through hole 25. In such cases, a slit extending in the direction of the axis 100 may be provided on the pin 5, for example, from the base end of the pin 5 to the boundary between the annular portion 53 and the second cylindrical portion 52, or in an appropriate area including the annular portion 53. As a result, when the annular portion 53 passes through the left and right inner openings of the through hole 25, the slit reduces the diameter of the annular portion 53, making it easier to pass through the openings.

[0027] Furthermore, in the free-stop mechanism of the container 1 according to the embodiment having the above configuration, the lid 3 is opened and closed so that it can be fixed at any angle, using not only the frictional force between the outer surface of the stop material 6 and the inner surface of the recess 35, but also the frictional force between the surface of the step 36 in the recess 35 which has a two-stage cylindrical internal shape and the tip surface 62 of the hollow cylindrical stop material 6 that is in contact with it.Therefore, the frictional force necessary for the free-stop mechanism can be secured without increasing the frictional force between the outer surface of the stop material 6 and the inner surface of the recess 35.In other words, in the container 1 according to the embodiment, the outer surface of the pin 5 and the inner surface of the stop material 6 are less prone to wear, and malfunctions of the free-stop mechanism are less likely to occur.

[0028] Furthermore, according to the free-stop mechanism of the container 1 in this embodiment, the tubular stop material 6 can be inserted through the through hole 25 and recess 35, which serve as the hinge shaft hole, with the stop material 6 already attached to the pin 5. In other words, the process of inserting the pin 5 into the stop material 6 can be made easier. Then, the container 1 can be assembled in a simple procedure of simply fitting the hinge into the through hole 25 and recess 35 with the pin 5, with the stop material 6 attached.

[0029] Furthermore, in the housing described in Patent Document 1, a simple two-stage cylindrical pin with a tapered tip was used for the hinge, which meant there was a possibility of the pin coming out. However, in the hinge of the container 1 according to the embodiment, a pin 5, which has an annular portion 53 projecting radially outward between a first cylindrical portion 51 and a second cylindrical portion 52 of different diameters, is inserted through a through hole 25 with a tapered tip opening, so that the portion of the pin 5 closer to the tip than the annular portion 53 protrudes from the through hole 25. Therefore, the pin 5 will not come out. ===Other Examples=== Although the container 1 according to the embodiment has been described above, it goes without saying that the present invention is not limited to the above embodiment and can be modified in various ways without departing from the spirit of the invention. Furthermore, the above embodiment has been described in detail in order to explain the present invention in an easy-to-understand manner and is not necessarily limited to having all the configurations described. In addition, it is possible to add, delete, or replace some of the configurations of the above embodiment with other configurations.

[0030] For example, in order to fix the first cylindrical portion 51 in the through hole 25, the first cylindrical portion 51 may be made into a rectangular tube shape or the like, and the inner circumferential surface of the through hole 25 may be formed to conform to the outer circumferential shape of the first cylindrical portion 51.

[0031] If the first cylindrical portion 51 is securely fixed to the through hole 25 by adhesive or other means so that the pin 5 does not move in the left-right direction, then the annular portion 53 is not necessarily required.

[0032] The stop material 6 does not have to be completely fixed to the second cylindrical portion 52. The pin 5 may be rotatably inserted into the stop material 6 so as to generate frictional force between the outer circumferential surface of the second cylindrical portion 52 and the inner circumferential surface of the stop material 6. That is, a free-stop mechanism may be configured that uses the frictional force between the outer circumferential surface of the stop material 6 and the inner circumferential surface of the first hollow portion 35a in the recess 35, and the frictional force between the tip surface 62 of the stop material 6 and the surface of the step 36 at the boundary between the first hollow portion 35a and the second hollow portion 35b, as well as the frictional force between the outer circumferential surface of the second cylindrical portion 52 and the inner circumferential surface of the stop material 6.

[0033] In the container 1 according to the embodiment, hinges are provided at two locations on both the left and right ends of the container 1, and a free-stop mechanism is incorporated into both hinges. However, a free-stop mechanism may be provided in only one hinge. A notch 23 and a through hole 25 may be provided on the lid 3 side, and a protrusion 34 and a recess 35 may be provided on the container body 2 side. Alternatively, as shown in Figure 6, the notch 223 of the container body 202 and the protrusion 234 of the lid 203 may be formed to engage alternately at the rear end of the container 201, and a hinge may be provided in only one location. [Explanation of Symbols]

[0034] 1,201 Container, 2,202 Container body, 3,203 5 Pin, 6 Stop material, 23,223 Notch, 25 Through hole, 26 Protruding part, 27 Groove, 34,234 convex portion, 35 concave portion, 35a first hollow portion, 35b second hollow portion, 51 First cylindrical section, 52 Second cylindrical section, 53 Annular section, 55 Rib, 61 Base end face of stop material, 62 Front end face of stop material, 100 Rotation axis of hinge

Claims

1. A container comprising a container body having an opening for storing contents, and a lid connected to the container body via a hinge and capable of opening and closing to cover the opening, The axis of rotation of the aforementioned hinge is set in the left-right direction. With the lid in a closed state as a reference, the rotation axis is located at one end in the front-to-back direction, which is perpendicular to the left-to-right direction. The hinge comprises a notch formed on one end of either the container body or the lid, a through hole formed coaxially with the rotation axis and connecting to the notch, a protrusion formed on the other end of either the container body or the lid to engage with the notch, a recess formed coaxially with the rotation axis and formed in the protrusion, a pin inserted through the through hole with its tip inserted into the recess, and a hollow cylindrical stop material attached to the pin. The pin is formed coaxially with a cylindrical first cylindrical portion formed on the base end side and a cylindrical second cylindrical portion formed on the tip side of the pin, which is smaller in diameter than the first cylindrical portion. The stop material is installed in a press-fitted state within the second cylindrical portion, with one end face located at the base end of the second cylindrical portion and the tip of the pin protruding from the other end face. The first cylindrical portion is inserted through the through hole, and the second cylindrical portion is inserted into the recess. The interior of the recess consists of a cylindrical first hollow portion into which the region in the second cylindrical portion into which the stop material is attached is inserted, and a cylindrical second hollow portion into which the region on the tip side of the pin that protrudes from the stop material, which is smaller in diameter than the first hollow portion, is inserted, both of which are coaxially continuous. The first cylindrical portion is fixed in a manner that prevents it from rotating with respect to the through hole. The stop material has an outer circumferential surface that is rotatably in close contact with the inner circumferential surface of the first hollow portion with frictional force, and the other left and right end faces are in contact with the stepped surface that forms the boundary between the first hollow portion and the second hollow portion while pressing against it. A container with a lid.

2. The first cylindrical portion has multiple ribs formed around the rotation axis that protrude radially outward and extend in the direction of the rotation axis. A groove is formed on the inner circumferential surface of the through hole, which engages with the rib and extends in the direction of the rotation axis. A container with a lid according to claim 1.

3. The first cylindrical portion and the second cylindrical portion are connected via an annular portion that protrudes radially outward and rotates around the axis of rotation. The annular portion has an inclined surface that starts with the outer diameter of the first cylindrical portion as its maximum diameter and decreases toward the second cylindrical portion, reaching a minimum diameter that is larger than the outer diameter of the second cylindrical portion. The through hole has inner openings on the left and right sides that face the notch, which are smaller in diameter than the outer openings on the left and right sides, and the diameter of these inner openings is smaller than the maximum outer diameter of the annular portion. The annular portion and the second cylindrical portion protrude from the through hole, and the pin is restricted from deviating outwards to the left and right. The stop material is held in a compressed state in the direction of the rotation axis between the interface between the annular portion and the second cylindrical portion and the surface of the step in the recess. A container with a lid according to claim 1 or 2.

4. A method for assembling a container with a lid according to claim 3, An engagement step of engaging the notch and the protrusion so that the through hole and the recess are coaxial, A pin insertion step involves inserting the pin into the coaxially arranged through hole and recess from the left and right outer sides, Includes, In the pin insertion step, the annular portion is made to protrude from the through hole by elastically deforming at least one of the left and right inner openings in the through hole and the annular portion of the pin in the radial direction. How to assemble a container with a lid.

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