Cap body

Abstract

To inhibit two divisional bodies from separating.SOLUTION: A cap body comprises a topped-cylindrical cap main body 11 that extends vertically, and an outer-shell body 12 that covers the cap main body. The outer-shell body comprises an extension portion 13 that has an inner surface projected from an outer surface of the cap main body, and a fit-cylinder portion 14 that extends downward from the extension portion and is fitted externally to the cap main body, and consists of two divisional bodies 12a, 12b that are divided in one of diametrical directions. In respective ones of the two divisional bodies, in any one of abutment faces in the extension portions abutted against each other in the one direction, a coupling cylinder 15 is provided projecting toward any other abutment face 13b and arranged coaxially to a second center axis O2 of the extension portion extending in the one direction. In the other abutment face, a fit groove is provided fitted with the coupling cylinder. In the cap main body, a clamp cylinder 17 is provided clamping diametrically the fit-cylinder portion with the cap main body.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a cap body. [Background technology]

[0002] BACKGROUND ART Conventionally, a cap body is known that includes an inner cap and an outer cap that has a mounting tubular portion fitted onto the outer surface of the inner cap and covers the inner cap, as shown in Patent Document 1 below, for example. For example, if the thickness of the outer cap is not changed in order to provide a design to the cap body, and a protruding portion is formed on the outer cap that protrudes significantly outward in the radial direction intersecting the central axis of the mounting tubular portion when viewed from above and below, the inner surface of the protruding portion will protrude outward in the radial direction relative to the inner circumferential surface of the mounting tubular portion. In this case, considering moldability, the outer cap cannot be molded as a single unit, and it is necessary to construct the outer cap from two divided bodies separated in one of the radial directions. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Jikko No. 59-1974 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with this cap body, there is a risk that the two divided bodies may easily separate.

[0005] The present invention provides a cap body that can prevent the two divided bodies from separating. [Means for solving the problem]

[0006] A cap body according to one aspect of the present invention includes a cap body having a cylindrical shape with a top extending in a vertical direction, and an outer shell body covering the cap body, wherein the outer shell body includes a protruding portion having an inner surface protruding relative to an outer surface of the cap body, and a mounting tubular portion extending downward from the protruding portion and fitted onto the cap body, and the outer shell body is divided in one of radial directions intersecting a first central axis of the cap body when viewed from the vertical direction. , the protruding portion and the mounting tube portion The cap is constructed of two divided bodies, and in each of the two divided bodies, a connecting tube is provided on one of the butting surfaces of the protruding portions that are butted against each other in the one direction, the connecting tube protruding toward the other butting surface and arranged coaxially with a second central axis of the protruding portion extending in the one direction, and a fitting groove into which the connecting tube is fitted is provided on the other butting surface, and the cap body has split into two A clamping tube is provided to clamp the mounting tube portion between the mounting tube portion and the cap body in the radial direction.

[0007] The cap body is provided with a clamping tube that radially clamps the mounting tube portion of the outer shell body between it and the cap body, preventing the two divided mounting tube portions from moving apart relative to each other in the one direction. This, combined with the fact that the connecting tube of one of the two divided extension portions is fitted into the fitting groove of the other extension portion, prevents the two divided bodies from separating.

[0008] The outer and inner surfaces of the protruding portion may be formed in a spherical shape.

[0009] Since the outer and inner surfaces of the protrusion are formed spherically, it is difficult to ultrasonically bond the mating surfaces of the two divided protrusions. Therefore, the clamping tube prevents the two divided mounting tubes from moving apart relative to each other in the one direction, thereby providing a remarkable effect of preventing the two divided bodies from separating.

[0010] A first engaging portion and a second engaging portion may be separately formed on the outer peripheral surface of the connecting tube and the inner surface of the fitting groove, which engage with each other to prevent the two divided bodies from moving away from each other in the one direction.

[0011] A first engaging portion and a second engaging portion are separately formed on the outer surface of the connecting tube and the inner surface of the mating groove, which engage with each other to prevent the two divided bodies from moving apart relative to each other in the one direction, thereby reliably preventing the two divided bodies from separating. [Effects of the Invention]

[0012] According to one aspect of the present invention, it is possible to prevent the two divided bodies from separating. [Brief explanation of the drawings]

[0013] [Figure 1] FIG. 2 is a half-longitudinal cross-sectional view of a cap body shown as an embodiment. [Figure 2] FIG. 2 is a cross-sectional view taken along the line II-II in FIG. [Figure 3] FIG. 3 is a cross-sectional view taken along the line III-III in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0014] A cap body according to one embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the cap body 1 according to this embodiment includes a cap body 11 having a cylindrical shape with a top, and an outer shell body 12 that covers the cap body 11.

[0015] Hereinafter, along the direction in which the central axis O1 of the cap body 11 (hereinafter referred to as the first central axis) extends, the top wall side of the cap body 11 will be referred to as the upper side, and the open end side of the peripheral wall of the cap body 11 will be referred to as the lower side. The direction in which the first central axis O1 extends will be referred to as the vertical direction, the direction intersecting the first central axis O1 as viewed from the vertical direction will be referred to as the radial direction, and the direction going around the first central axis O1 will be referred to as the circumferential direction.

[0016] A female thread is formed on the inner peripheral surface of the cap body 11. The cap body 11 is detachably screwed onto the mouth W1 of the container body W. The cap body 11 opens and closes a content spout W2 provided in the mouth W1. The cap body 11 may be detachably attached to a dispenser having a press-down head, and may open and close a discharge hole formed in the press-down head. In the illustrated example, a topped, cylindrical inner plug member W3 is fitted to the mouth portion W1. The top wall of the inner plug member W3 is formed in an annular shape, and the inside of this top wall forms the spout W2. A sealing tube is formed on the top wall of the inner plug member W3, protruding downward and fitting into the mouth portion W1. The inner plug member W3 may also be formed integrally with the mouth portion W1.

[0017] The outer shell 12 has a protruding portion 13 having an inner surface that protrudes relative to the outer surface of the cap body 11, and an attachment tube portion 14 that extends downward from the protruding portion 13 and is fitted onto the cap body 11. In the illustrated example, the outer and inner surfaces of the protruding portion 13 are formed in a spherical shape. That is, the protruding portion 13 is formed in a hollow spherical shape. The protruding portion 13 and the mounting tube portion 14 are arranged coaxially with the first central axis O1.

[0018] The mounting tube portion 14 is fitted onto the lower end of the peripheral wall of the cap body 11 . A through-hole 13c is formed in the lower end of the protruding portion 13. The through-hole 13c is arranged coaxially with the first central axis O1, and the inner diameters of the through-hole 13c and the mounting cylindrical portion 14 are equal to each other. The cap body 11 is inserted into the protruding portion 13 through the through-hole 13c and the mounting cylindrical portion 14. The upper end of the cap body 11 is located above the vertical center of the protruding portion 13. Note that the upper end of the cap body 11 may be located at the same vertical position as the vertical center of the protruding portion 13 or below.

[0019] The outer shell 12 is composed of two divided bodies 12a and 12b separated in one radial direction. In each of the two divided bodies 12a, 12b, one of the butting surfaces 13a, 13b of the overhanging portions 13 that are butted against each other in the one direction (hereinafter referred to as the first butting surface) 13a is provided with a connecting tube 15 that protrudes toward the other butting surface (hereinafter referred to as the second butting surface) 13b. The connecting tube 15 is disposed coaxially with the second central axis O2 of the overhanging portion 13 extending in the one direction. The connecting tube 15 is provided around the entire circumference of the first butting surface 13a around the second central axis O2. The connecting tube 15 is provided on the inner peripheral edge of the first butting surface 13a. The inner peripheral surface of the connecting tube 15 is connected to the inner surface of the divided body 12a in the one direction without any steps. The second central axis O2 is perpendicular to the first central axis O1.

[0020] The second abutting surface 13b is provided with a fitting groove 16 into which the connecting tube 15 is fitted. The fitting groove 16 is provided around the entire circumference of the second abutting surface 13b around the second central axis O2. The fitting groove 16 is provided on the inner peripheral edge of the second abutting surface 13b. The fitting groove 16 is integrally provided on the second abutting surface 13b and the inner surface of the divided body 12b.

[0021] A first engaging portion 18 and a second engaging portion 19 are formed separately on the outer peripheral surface of the connecting tube 15 and the inner surface of the fitting groove 16, and these engage with each other to prevent the two divided bodies 12a, 12b from moving away from each other in the one direction.

[0022] The first engagement portions 18 are provided at both lateral end portions of the connecting tube 15, perpendicular to both the up-down direction and the one direction. The first engagement portions 18 protrude laterally from the outer peripheral surface of the connecting tube 15. The first engagement portions 18 extend around the second central axis O2. The first engagement portions 18 are spaced apart in the one direction from the first abutting surface 13a. Of the surfaces of the first engagement portions 18, the surface facing the tip end side of the connecting tube 15 along the one direction extends toward the base end side of the connecting tube 15 along the one direction (the side of the first abutting surface 13a) as it moves away from the outer peripheral surface of the connecting tube 15 in the lateral direction.

[0023] The second engagement portions 19 are provided at both lateral end portions of the fitting groove 16 that are perpendicular to both the up-down direction and the one direction. The second engagement portions 19 are recessed in the lateral direction from the inner surface of the fitting groove 16. The second engagement portions 19 extend around the second central axis O2. The second engagement portions 19 are spaced apart in the one direction from the second abutting surface 13b.

[0024] The cap body 11 is provided with a clamping tube 17 that clamps the mounting tube portion 14 between itself and the cap body 11 in the radial direction. The clamping tube 17 is disposed coaxially with the first central axis O1. A flange portion 17a is formed at the lower end of the clamping tube 17, protruding radially inward and connected to the lower end of the peripheral wall of the cap body 11. The inner peripheral surface of the clamping tube 17, the upper surface of the flange portion 17a, and the outer peripheral surface of the lower end of the peripheral wall of the cap body 11 define an annular groove into which the mounting tube portion 14 is inserted. The mounting tube portion 14 is undercut-fitted into the clamping tube 17. That is, a locking recess is formed on either the inner peripheral surface of the clamping tube 17 or the outer peripheral surface of the mounting tube portion 14, and a locking protrusion that locks into the locking recess is formed on the other.

[0025] The outer shell 12 is provided with an outer cylinder 21 that sandwiches the clamping cylinder 17 between itself and the mounting cylinder portion 14 in the radial direction. The outer cylinder 21 extends downward from the lower end of the protruding portion 13 and radially surrounds the mounting cylinder portion 14. The outer cylinder 21 is disposed coaxially with the first central axis O1. The clamping cylinder 17 is fitted into the outer cylinder 21.

[0026] As described above, according to the cap body 1 of this embodiment, the cap main body 11 is provided with a clamping tube 17 that radially clamps the mounting tube portion 14 of the outer shell body 12 between it and the cap main body 11, thereby preventing the two divided mounting tube portions 14 from moving apart relatively in the one direction. This, combined with the fact that the connecting tube 15 of one of the two divided extension portions 13 is fitted into the fitting groove 16 of the other extension portion 13, makes it possible to prevent the two divided bodies 12a, 12b from separating.

[0027] Since the outer and inner surfaces of the extension portion 13 are formed spherically, it is difficult to ultrasonically bond the mating surfaces 13a, 13b of the two divided extension portions 13. Therefore, the clamping tube 17 prevents the two divided mounting tube portions 14 from moving relatively apart in the one direction, thereby achieving a remarkable effect of preventing the two divided bodies 12a, 12b from separating.

[0028] A first engaging portion 18 and a second engaging portion 19 are separately formed on the outer surface of the connecting tube 15 and the inner surface of the mating groove 16, which engage with each other to prevent the two divided bodies 12a, 12b from moving away from each other in the one direction, thereby reliably preventing the two divided bodies 12a, 12b from separating.

[0029] The technical scope of the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0030] For example, the protruding portion 13 may be formed in the shape of a hollow rectangular parallelepiped or a cone. The first engaging portion 18 and the second engaging portion 19 do not necessarily have to be formed on the outer peripheral surface of the connecting tube 15 and the inner surface of the fitting groove 16 .

[0031] In addition, within the scope of the spirit of the present invention, it is possible to replace the components in the above-described embodiments with well-known components as appropriate, and the above-described embodiments and the above-described variations may be combined as appropriate. [Explanation of symbols]

[0032] 1 Cap body 11 Cap body 12 Exoskeleton 13 Overhang 13a First butt surface (one of the butt surfaces) 13b Second abutting surface (the other abutting surface) 14 Mounting tube 15 Connecting tube 16. Interlocking groove 17 Holding the tube 18. First Department 19. Department 2 O1 First Central Axis O2 Second Central Axis

Claims

1. a cap body having a cylindrical shape with a top extending in the vertical direction; an outer shell body that covers the cap body, The outer shell body is a protruding portion having an inner surface protruding relative to an outer surface of the cap body; a mounting tube portion extending downward from the protruding portion and fitted onto the cap body; When viewed from the top-bottom direction, the cap body is divided into two divided bodies, each divided in one radial direction intersecting the first central axis of the cap body, and each divided body has the protruding portion and the mounting tubular portion, In each of the two divided bodies, a connecting tube is provided on one of the butt surfaces of the overhanging portions that are butted against each other in the one direction, the connecting tube protruding toward the other butt surface and arranged coaxially with a second central axis of the overhanging portion extending in the one direction, and a fitting groove into which the connecting tube is fitted is provided on the other butt surface, The cap body is provided with a clamping tube that radially clamps the two divided mounting tube portions between the cap body and the clamping tube.

2. The cap body according to claim 1 , wherein the outer and inner surfaces of the protruding portion are formed in a spherical shape.

3. 3. The cap body according to claim 1, wherein a first engaging portion and a second engaging portion are separately formed on the outer peripheral surface of the connecting tube and the inner surface of the mating groove, and the first engaging portion and the second engaging portion engage with each other to prevent the two divided bodies from moving apart relative to each other in the one direction.

Images