JP2011102145A - Cap for discharge vessel, discharge product having the cap, and method for attaching the cap - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin-walled cap for a discharge vessel having a sufficient strength and a fitting force to the vessel, and a discharge product. <P>SOLUTION: The cap 12 includes a cylindrical cap body 12a, a shape-keeping part 12b which is provided on the lower end of the cap body and expanded downwardly in a tapered manner, and an engagement part 12c provided on the lower end of the shape-keeping part. The shape-keeping part 12b is pressure-attached on an oblique surface to a supporting part 13c to be contracted in a tapered manner upward of the discharge vessel, and the engagement part 12c is shrink-fitted to a cap locking part 13b of the cylindrical vessel body. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cap for a discharge container, a discharge product including the cap, and a mounting method of the cap.

Generally, a discharge product includes a container filled with contents, a valve for discharging the contents from the container, and a nozzle attached to the valve. Therefore, a cap is attached to protect the valve and nozzle from external force (see FIG. 11 of Patent Document 1). Such a cap has strength to protect the valve and the like from external forces.
Moreover, generally the cap which covers the upper part of a container like patent document 2 is used.

JP 2001-31158 A JP 2000-43921 A

In recent years, a recycling problem and an environmental problem are mentioned, and reduction of the material of each component and shortening of a manufacturing process are calculated | required. Generally, a cap having high strength has a thickness. In this case, the amount of material used is large, and the amount of heat necessary for heating increases accordingly, and the energy required for manufacturing increases. Moreover, the cooling period after molding becomes long, and it takes time to manufacture.
Therefore, it is conceivable to reduce the thickness of the cap. In this case, however, sufficient strength for protecting the valve or the like cannot be obtained, and sufficient fitting force with the container cannot be ensured. The cap of Patent Document 2 is not provided with parts such as a valve at the upper end of the container, and serves as a lid for closing the opening of the container to the last, and has little effect as a protective cap.
An object of the present invention is to provide a cap and a discharge product for a discharge container having a small thickness and sufficient strength and a fitting force with the container.

  The cap for a discharge container according to the present invention is a cap attached to a discharge container having a cylindrical portion, and is provided at the lower end of the cap main body and the shape holding section that expands in a tapered shape downward. And a cylindrical engagement portion provided at the lower end of the shape holding portion, the shape holding portion is pressure-bonded to the support portion that is tapered in a tapered shape toward the upper side of the discharge container, The engagement portion is tightly fitted to the cylindrical portion of the discharge container. Here, the slant pressure bonding means that the pressure is applied to the cap support part from above the shape holding part of the cap by the downward pressing force when the cap is attached to the cylinder part of the discharge container, and the shape holding part and the cap support part are moved. Say to make surface contact.

  A second aspect of the cap for a discharge container of the present invention is a cap attached to a discharge container having a cylindrical portion, and includes a cap main body and a cylindrical engagement portion provided at the lower end of the cap main body. The engaging portion is formed with a groove or rib extending in the vertical direction, and the engaging portion is tightly fitted to the cylindrical portion of the discharge container.

  In the cap of the present invention described above, it is preferable that the cap body has a top surface, and a nozzle engaging portion that engages with a nozzle of a discharge member of the discharge container is formed on the top surface. Further, it is preferable that the cap body is transparent or translucent, and a printed material is provided on the back side of the cap body.

  The discharge product of the present invention comprises the cap of the present invention, a container main body having a cylindrical portion, a valve attached to the container main body, and a discharge container equipped with a discharge member attached to the valve. In such a discharge product, it is preferable that the container main body has a cylindrical cap locking portion and a cap support portion whose diameter is tapered upward at the upper end thereof.

  The cap mounting method of the present invention is attached to a discharge container having a container main body provided with a cylindrical cap locking portion and a cap support portion whose diameter is tapered upward at the upper end thereof. In the method, the engaging portion is fitted into the cap locking portion while expanding the engaging portion of the cap, and at the same time, the pressure is applied to the cap support portion from above the shape holding portion of the cap. The shape holding part and the cap support part are sloped and pressure-bonded.

  The cap for the discharge container of the present invention includes a shape holding portion that expands downward in a tapered shape at the lower end of the cap body, and the discharge container that reduces the shape holding portion in a tapered shape upward. By pressing the support portion with the inclined surface, the external force received from the vertical direction is absorbed by the shape holding portion, and the overall compressive strength is maintained. In addition, the cap is fitted to the discharge container with equal force from the entire circumference of the fitting part because it is provided at the lower end of the shape holding part and tightly fits with the cylinder part of the discharge container. The fitting force between the cap and the discharge container can be maintained.

  According to the second aspect of the cap for the discharge container of the present invention, since the engaging portion that is tightly fitted to the cylinder portion of the discharge container is provided at the lower end of the cap body, the cap is firmly fixed to the discharge container. can do. Moreover, since the groove or rib extending vertically is formed in the engaging portion, strength against external force in the vertical direction can be obtained.

  In the cap of the present invention, when the cap body has a top surface and a nozzle engaging portion that engages with a nozzle of the discharge member of the discharge container is formed on the top surface, after removing the cap, By attaching to a discharge member, the injection direction of the content sprayed from the nozzle of a discharge member can be controlled. Moreover, when the said cap main body is transparent or semi-transparent and printed matter is provided in the back side of the said cap main body, printed matter is hard to peel off. Furthermore, when the printed matter is provided on the inclined surface of the cap body, the visual effect by the printed matter is high.

It is a partial cross section side view which shows one Embodiment of the discharge product (aerosol product) of this invention. It is a partial cross section side view which shows other embodiment of the discharge product (aerosol product) of this invention. It is a partial cross section side view which shows other embodiment of the discharge product (aerosol product) of this invention. It is a partial cross section side view which shows other embodiment of the discharge product (aerosol product) of this invention. It is a partial cross section side view which shows other embodiment of the discharge product (pump product) of this invention. It is a partial cross section side view which shows other embodiment of the discharge product (tube product) of this invention. FIG. 7a is a sectional side view showing still another embodiment of the discharge product (aerosol product) of the present invention, and FIG. 7b is a state diagram when the cap is engaged with the nozzle. 8a, 8b and 8c are perspective views showing other embodiments of the cap for the discharge container of the present invention. 9a and 9d are perspective views showing still another embodiment of the cap for the discharge container of the present invention, and FIGS. 9b and 9c are schematic views showing the steps for manufacturing the cap for the discharge container of the present invention. . It is a perspective view which shows other embodiment of the cap for discharge containers of this invention. FIG. 11a is a partial cross-sectional side view showing still another embodiment of the discharge product (two-liquid discharge type aerosol product) of the present invention, FIG. 11b is its ZZ line cross-sectional view, and FIG. 11c is its cap. FIG. It is a partial cross section side view which shows other embodiment of the discharge product (aerosol product) of this invention.

  A discharge product 10 in FIG. 1 is an aerosol product including an aerosol container (discharge container) 11 and a cap 12. The aerosol container 11 includes a pressure-resistant container body 13, an aerosol valve 14 attached to an opening of the container body, and a push button 15 attached to the aerosol valve. The aerosol valve 14 and the push button (discharge member) 15 are conventionally known ones.

  The cap 12 includes a cylindrical cap body 12a having a top surface, a cylindrical shape holding portion 12b that expands in a tapered shape downward from the lower end thereof, and a cylindrical engagement portion that extends downward from the lower end thereof. 12c. The shape holding portion 12b that expands the diameter absorbs the force in the vertical direction applied to the cap body 12a, and increases the strength of the cap 12. The angle is preferably 10 to 70 degrees, particularly 20 to 60 degrees with respect to the horizontal. The engaging portion 12c is tightly fitted to the outer periphery of the container body. The diameter difference from the outer periphery of the container body is preferably 0 to 1 mm, particularly preferably 0.01 to 0.8 mm. Thereby, the fitting force with a container can be raised. Moreover, since the engaging part 12c is cylindrical shape, even if it inserts in a container main body, expanding the diameter of the engaging part 12c, it can be made to fit with a container main body by the equal force to the whole. Further, the air in the cap body 12a is difficult to escape to the outside, and the cap body is strong against external force.

  The average thickness of the cap 12 is 0.1 to 1.0 mm, particularly 0.2 to 0.8 mm. By reducing the thickness in this way, the cooling time after molding can be shortened and the material can be reduced when molding the cap. Further, the buckling strength of the cap 12 is 20 N or more, particularly 30 N or more in a state where the cap 12 is attached to the discharge container and a load is applied from above.

Such a cap 12 is made of a synthetic resin such as polyolefin such as polyethylene or polypropylene, polyamide (nylon), polyacetal (duracon), polyethylene terephthalate, or polyvinyl chloride.
The cap manufacturing method includes pressing the plate-shaped resin sheet against the mold, heating the resin sheet, making the resin sheet and the mold close to vacuum, and making the resin sheet adhere to the mold Is preferred. By using this manufacturing method, the molding time of a cap having a small average thickness as described above can be shortened. However, it may be formed by injection molding, press molding, blow molding or the like.

  The container body 13 has a bottomed cylindrical shape, and includes a trunk portion 13a, a bottom portion 13b that closes the lower end thereof, a shoulder portion 13c that decreases in a taper shape from the upper end of the trunk portion, and a shoulder portion thereof. A cylindrical cap locking portion 13d that extends upward, a cap support portion 13e that tapers upward from the upper end of the cap locking portion, and a bead portion (not shown) formed at the upper end of the cap support portion. )). The cap support part 13e is a part that contacts the shape holding part 12b of the cap 12. The angle is the same as that of the cap. The cap locking part 13d corresponds to the cylinder part of the discharge container, and is a part that is tightly fitted to the engaging part 12c of the cap 12.

  Such a container body 13 is formed from a metal plate such as aluminum by impact molding or drawing / ironing processing, and then subjected to necking processing or the like on the upper portion thereof to form a shoulder portion 13c, a cap locking portion 13d, A cap support portion 13e is formed, and a bead portion is formed at the upper end of the cap support portion by curling. Note that other materials having pressure resistance such as synthetic resin and pressure-resistant glass may be used.

The aerosol product 10 is assembled so that the cap 12 is put on the aerosol container 11. At this time, the cap 12 is inserted into the cap locking portion 13d of the aerosol container while increasing the diameter of the engaging portion 12c of the cap 12 until the shape holding portion 12b of the cap 12 is crimped to the cap support portion 13e of the container body 13. At this time, the shape holding part 12b is inserted while applying pressure (slope crimping) to the cap support part 13e by an external force. Thus, since the cap 12 is attached to the container body 13 while leaving the elasticity of the engaging portion 12c, the fitting thickness with the container can be secured even if the average thickness of the cap is small and the strength of the cap itself is weak. . Moreover, since the shape holding part 12b is inclinedly pressure-bonded to the cap support part 13e, that is, engaged so as to receive a reaction force from the cap support part 13e, it is attached to the discharge container. This improves the strength against the external force applied to the cap. Furthermore, since the engaging portion 12c of the cap is cylindrical, when the cap 12 is attached to the cylindrical portion of the container main body 13, the engaging portion 12c can be easily spread and inserted into the cap locking portion 13d. . Further, even after insertion, the entire circumference is fitted with a uniform force.
The aerosol product 10 may be further packaged with a shrink film. In this case, the crimping force between the shape holding portion 12b and the cap support portion 13e and the fitting force between the engagement portion 12c and the cap locking portion 13d are increased.

  In the aerosol product 20 of FIG. 2, the shoulder 21a of the container body 21 of the aerosol container is pressure-bonded to the shape holding part 12b of the cap 12 as a cap support part, and the body part 21b of the container body 21 is the cap 12 as a cap locking part. Is engaged with the engaging portion 12c. Other configurations are substantially the same as the aerosol product 10 of FIG.

  The aerosol product 25 in FIG. 3 includes a neck portion 26c between a shoulder portion 26a of the container body 26 and a bead portion (the upper end of the container body), and the shoulder portion 26a is similar to the aerosol product 20 in FIG. As a cap support portion, the shape retaining portion 12b of the cap 12 is pressure-bonded to the inclined surface, and the body portion 26d of the container body 26 is engaged with the engaging portion 12c of the cap 12 as a cap locking portion. Further, a trigger type push button is attached as the discharge member 27. Other configurations are substantially the same as the aerosol product 10 of FIG. In this embodiment, the lever of the push button protrudes outward from the bead portion, but can be accommodated in the cap.

The aerosol product 30 shown in FIG. 4 includes an aerosol container including a three-piece type container body 31 and a cap 12.
The container body 31 includes a cylindrical barrel member 32, a metal member 33 fixed to the upper end of the barrel member by double winding, and a bottom member 34 fixed to the lower end of the barrel member by double winding. The body member 32 includes a cylindrical body main body 32a, an upper sloped portion 32b that tapers upward from the upper end of the body main body, and a taper shape downward from the lower end of the body main body. A lower slope portion 32c having a reduced diameter, and the eye metal member 33 is secured to the upper end of the upper slope portion 32b, and the bottom member 34 is secured to the lower end of the lower slope portion 32c. Such a container main body 31 is formed from a metal plate such as tinplate or tin-nickel steel plate (TNS).

The upper slope portion 32b of the container body 31 is crimped to the shape holding portion 12b of the cap 12 as a cap support portion, and the body portion 32b of the container body 31 is fitted to the engagement portion 12c of the cap 12 as a cap locking portion. To do. The container body 31 is a three-piece type, but has an upper slope portion 32b and a lower slope portion 32c, so that the area of the upper and lower openings of the body member 32 is reduced. Material reduction of the bottom member 34 is realized.
This also has a trigger type injection member 27 attached thereto. Other configurations are substantially the same as the aerosol product 10 of FIG.

In the embodiments so far, the aerosol product has been cited as the discharge product. In the next embodiment, a pump product is listed.
The pump product 35 in FIG. 5 includes a pump container 36 and a cap 12.
The pump container 36 includes a container main body 37, a pump valve 35a attached to the container main body by screw fitting, and a discharge member 35b attached to the pump valve. The pump valve 35a and the discharge member 35b are conventionally known ones.

The container body 37 has a bottomed cylindrical shape, and includes a trunk portion 37a, a bottom portion 37b that closes the lower end thereof, a shoulder portion 37c that is tapered from the upper end of the trunk portion in a tapered shape, and an upper end of the shoulder portion. And a formed neck portion 37d. The neck portion 37d is formed with a female screw (not shown) that engages with the pump valve 38.
In the pump product 35, the shoulder portion 37c of the container body 37 serves as a cap support portion and is pressure-bonded to the shape holding portion 12b of the cap 12, and the body portion 37a of the container body 37 serves as a cap locking portion and the engaging portion 12c of the cap 12. And is to be fitted. Further, as shown in FIG. 5B, a printed matter (Shampoo) is provided from the back surface of the cap 12. Other configurations are substantially the same as the aerosol product 10 of FIG.

In the next embodiment, a tube product is cited.
The tube product 38 of FIG. 6 includes a tube container 39 and a cap 12.
The tube container 39 is closed at the lower end by tightening, and includes a trunk portion 39a, a shoulder portion 39b that tapers upward from the upper end of the barrel portion, and a neck portion 39c formed at the upper end of the shoulder portion. And. There is a discharge port at the upper end of the neck 39c. The outlet is closed with a thin film such as an aluminum foil when not in use, and the thin film is peeled off or broken to discharge the contents when in use.
In the tube product 38, the shoulder 39 b of the tube container 39 is pressure-bonded to the shape holding part 12 b of the cap 12 as a cap support part, and the body part 39 a of the tube container 39 serves as a cap locking part and the engaging part 12 c of the cap 12. And is to be fitted. When the cap 12 is attached to the tube container 39, the top surface of the cap closes the discharge port to prevent the contents from drying. Other configurations are substantially the same as the aerosol product 10 of FIG.

The following is an aerosol product with another embodiment of the cap of the present invention.
The aerosol product 40 of FIG. 7a is provided with a cap 41 that can be used as a cover that is attached to the nozzle 42 of the push button 15 of the aerosol container 11 and prevented from scattering the contents after being removed for use of the aerosol container. is there.
The cap 41 includes a cap main body 12a, a shape holding portion 12b, and a cylindrical engagement portion 12c, like the cap 12 of FIG. 1, and the top surface of the cap main body 12a is tapered upward. A nozzle engaging portion 41a protruding upward is formed at the center of the top surface. The nozzle engaging portion 41a may be processed after the cap is molded.

Because of this configuration, the cap 41 is removed from the aerosol product 40, and the cap 41 is attached to the push button 15 so as to insert the nozzle 42 into the nozzle engaging portion 41a (see FIG. 7b). Thereby, the content sprayed from the nozzle 42 of a push button can be reliably injected to a target object.
Other configurations are substantially the same as the aerosol product 10 of FIG. 1, the strength of the cap 41 is maintained by the shape holding portion 12b of the cap 41, and the fitting force to the container is maintained by the engaging portion 12c.
The cap body 12a does not have to be cylindrical, and the cap body 12a may be a hexagonal column like the cap 44 of FIG. Further, the shape of the cap body 12a can be arbitrarily formed, for example, a shape in which a plurality of triangular prisms are notched from the upper end of the cap body 12a to the top surface as in the caps 45 and 46 of FIGS. 8b and 8c. Other shapes may be used.

Next, still another form of the cap of the present invention will be given.
The cap 50 of FIG. 9a includes a display unit 51 provided with a display of X such as characters. The cap 50 includes a cap main body 52 having a transparent or translucent top surface, a shape holding portion 12b that expands in a tapered shape downward from the lower end thereof, and a cylindrical engaging portion 12c that extends downward from the lower end thereof. It consists of. The rear part of the cap main body 52 is an inclined surface as if a cylindrical object is cut out by an inclined surface, and this inclined surface is a display unit 51. Printing is provided on the back surface of the display unit 51, and the printed matter can be seen through the transparent or translucent cap body.

The manufacturing method is as follows. As shown in FIG. 9b, a letter X or the like is printed or pasted on the surface (inner surface 53) of the resin sheet 53 which is the inner surface of the cap in advance, and the inner surface 53a is connected to the inside of the cap as shown in FIG. Vacuum forming is performed. Thereby, the cap 50 by which printing was performed inside can be shape | molded.
Further, the cap 55 in FIG. 9d is obtained by embossing characters or the like in advance on a mold and vacuum-molding a resin sheet, and at the same time, characters or the like X are imprinted on the display unit 51 on the top surface 51a of the cap body 12a. Thereby, the cap 50 which protruded the character etc. X is obtained.

The cap 60 in FIG. 10 is formed of a cylindrical cap body 61 having a top surface, and is formed with a vertically extending groove 62 provided in an annular shape at equal intervals in a lower portion 61a extending from the middle portion to the lower end.
The lower part 61a of the cap body 61 is a part fixed to the outer periphery of the container body, and is attached to the outer periphery of the container body by tight fitting. The diameter difference from the outer periphery of the container body is preferably 0 to 1 mm, particularly preferably 0.01 to 0.8 mm. Thereby, the fitting force with a container can be raised. Since the groove 62 is provided in the lower portion 61a in an annular shape, the groove 62 exerts a rib-like action, and the lower portion 61a exerts an elastic force with respect to the diameter expansion operation, so that the insertion into the container body is further facilitated. The groove 62 also gives strength to the external force above and below the cap.

A two-liquid discharge type aerosol product 70 in FIG. 11 includes a two-liquid discharge type aerosol container 71 and a cap 72.
The two-liquid discharge type aerosol container 71 includes two aerosol containers 73 and a connecting member 74 that connects them. The aerosol container 73 has a thin container body with a diameter of 25 to 35 mm and can be gripped even when two are connected.
The connecting member 74 has an oval shape having two engaging portions 75 that engage with the respective aerosol containers 73, and a holding plate 76 that holds the aerosol container 73 is provided at the upper end. Further, a flange portion 77 protruding outward is formed at the lower end of the engaging portion 75. The outer periphery of the engaging portion 75 of the connecting member 74 is tightly fitted to the cap 72 as a cylindrical portion.
The cap 72 is composed of a long cylindrical cap main body 72a having a top surface, and four ribs 78 extending vertically from the middle portion to the lower end are formed on the outer periphery. The inner surface of the cap main body 72a and the outer periphery of the connecting member 74 are tightly fitted. And the rib 78 gives the intensity | strength with respect to the external force of an up-down direction.

The aerosol product 80 shown in FIG. 12 includes an aerosol container 81 and a cap 82 that protects the lower end of the aerosol container 81 and stands the aerosol container.
The aerosol container 81 includes a container body 83 made of a synthetic resin such as polyethylene terephthalate, an aerosol valve 84 that closes the upper end thereof, and a discharge member 85. As the aerosol valve 84 and the discharge member 85, conventionally known ones are used.
The container main body 83 includes a cylindrical barrel portion 83a, a cap support portion 83b whose diameter decreases in a tapered shape downward from the lower end of the barrel portion, a spherical bottom portion 83c that closes the lower end, and an upper end from the upper end of the barrel portion. The shoulder portion 83d is tapered toward the taper and the neck portion 83e extends upward from the shoulder portion. Such a container body 83 is formed by blow molding or the like.
The cap 82 is substantially the same as the cap 12 of FIG. 1, but protects the bottom portion 83d of the container body, and the shape holding portion 12b of the cap 82 is inclined and pressure-bonded to the cap support portion 83b. The engaging portion 12c of the cap 82 is fitted to the lower end (cap locking portion) of 83a. Other configurations are substantially the same as the aerosol product 10 of FIG.

DESCRIPTION OF SYMBOLS 10 Discharge product 11 Aerosol container 12 Cap 12a Cap main body 12b Shape holding part 12c Engagement part 13 Container main body 13a Body part 13b Bottom part 13c Shoulder part 13d Cap latching part 13e Cap support part 14 Aerosol valve 15 Push button 20 Aerosol product 21 Container Main body 21a Shoulder portion 21b Body portion 25 Aerosol product 26 Container body 26a Shoulder portion 26c Neck portion 26d Body portion 27 Discharge member 30 Aerosol product 31 Container body 32 Body member 32a Body portion main body 32b Upper slope portion 32c Lower slope portion 33 Metal member 34 Bottom member 35 Pump product 36 Pump container 37 Container body 37a Body 37b Bottom 37c Shoulder 37d Neck 35a Pump valve 35b Discharge member 38 Tube product 39 Tube container 39a Body 39b Shoulder 39c Neck DESCRIPTION OF SYMBOLS 0 Aerosol product 41 Cap 41a Nozzle engagement part 42 Nozzle 44, 45, 46 Cap 50 Cap 51 Display part 51a Top surface 52 Cap main body 53 Resin sheet 53a Inner surface 55 Cap 60 Cap 61 Main body 61a Lower part 62 Groove 70 Aerosol product 71 2 liquids Discharge-type aerosol container 72 Cap 73 Aerosol container 74 Connecting member 75 Engagement part 76 Holding plate 77 Flange part 78 Rib 80 Aerosol product 81 Aerosol container 82 Cap 83 Container body 83a Body part 83b Cap support part 83c Cap locking part 83d Bottom part 83e Shoulder 83f Neck 84 Aerosol valve 85 Discharge member

Claims (8)

A cap attached to a discharge container having a cylindrical portion,
A cap body;
A shape holding portion that is provided at the lower end of the cap body and expands downward in a tapered shape; and
A cylindrical engagement portion provided at the lower end of the shape holding portion,
The shape holding portion is pressure-bonded to the support portion that is tapered in a tapered shape toward the upper side of the discharge container,
The engagement portion is a cap for a discharge product that is tightly fitted to the cylindrical portion of the discharge container. A cap attached to a discharge container having a cylindrical portion,
A cap body;
A cylindrical engagement portion provided at the lower end of the cap body,
The engaging portion is formed with a groove or rib extending vertically.
The engagement portion is a cap for a discharge product that is tightly fitted to the cylindrical portion of the discharge container. The discharge product cap according to claim 1, wherein the cap body has a top surface, and a nozzle engaging portion that engages with a nozzle of a discharge member of the discharge container is formed on the top surface. The cap body is transparent or translucent;
The discharge product cap according to claim 1, wherein a printed material is provided on a back side of the cap body. The cap for discharge products according to claim 4, wherein the cap body has an inclined surface, and a printed matter is provided on the inclined surface. A discharge product comprising the cap according to claim 1 or 2, a container main body having a cylindrical portion, a valve attached to the container main body, and a discharge container provided with a discharge member attached to the valve. The discharge product according to claim 6, wherein the container main body has a cylindrical cap locking portion and a cap support portion whose diameter is tapered toward the upper side at an upper end thereof. A mounting method for attaching the cap according to claim 1 to a discharge container,
The discharge container has a container body provided with a cylindrical cap locking portion and a cap support portion whose diameter is reduced in a taper shape upward at the upper end thereof,
While expanding the engagement portion of the cap, the engagement portion is fitted into the cap locking portion,
A mounting method in which pressure is applied to the cap support portion from above the shape holding portion of the cap to cause the shape holding portion and the cap support portion to be pressure-bonded to each other.

Images