WO2005007523A1 - Synthetic-esin capsule body installed on bottle cap - Google Patents

Abstract

A synthetic-resin capsule body in which a cup is housed, capable of being fixed to a beverage bottle with a large fixing force. A synthetic-resin capsule body (1) is a formed product made from a PET resin, the same material from which a PET bottle (4) body is made, and has a capsule body (6) having a hollow-cylindrical recess portion (8) fitted on and fixed to a bottle cap (5) of the PET bottle (4), a capsule lid (7) detachably joined to the capsule body (6), and a cup (3) whose bottom is fixed to an inner surface of a top portion of the capsule lid (7). When the capsule lid (7) is detached from the capsule body (6) and the cup (3) is extended, the cup (3) is in a usable state. After use, the cup (3) can be retracted and housed in the capsule body (1).

Description

 Specification

 Capsule body made of synthetic resin to be attached to bottone cap

 Technical field

 The present invention relates to a capsule body attached as a bonus to a bottle cap of a plastic bottle or other beverage bottle, and more particularly to a synthetic resin capsule body incorporating a cup.

 ^ Technology

 [0002] Conventionally, as an additional container to be attached to a beverage bottle, a type in which an animation character, an animal, etc., a model, a card, an accessory, or a candy is put in a plastic bag and suspended at the neck of the beverage bottle There is a type in which an additional is put in a small box assembled by bending a sheet made of paper and fitted and attached to the neck of a beverage bottle (see Patent Document 1).

However, this type of extra container has low strength and bonding strength with the bottle itself, so it can be detached or broken when the bottle is carried.

 [0004] Further, as a cup that can be attached to a beverage bottle, one shown in FIG. 12 is known. This cup 30 has a recess 33 formed on the inner bottom portion 34 according to the shape and dimensions of the cap 32 of the commercially available bottle 31, and by fitting the recess 33 to the cap 32, the bottle 31 (See Patent Document 2).

 However, the conventional cup 30 described above is unsanitary because the inner bottom portion 34 into which the drinking water is poured is formed with the recess 33 to be fitted with the cap 32 touched by a human hand. Also, even when the cup 30 is attached to the bottle 31, there is a gap between the outer surface of the bottle Nole 31 and the edge 30a of the glass 30, so dust etc. easily adhere to the inner surface 30b of the glass 30, There is a disadvantage that there is S.

 Patent Document 1: Japanese Patent Application Laid-Open 2001-199444

 Patent Document 2: Japanese Patent Application Laid-Open No. 2001-180638

 Disclosure of the invention

Problem that invention tries to solve The present invention has been made to solve the above-mentioned drawbacks of the prior art, and the problem to be solved is that the cup having a built-in cup can be easily attached to the bottle cap of a beverage bottle with a large fixing force. It is an object of the present invention to provide a synthetic resin capsule body.

 Means to solve the problem

In order to achieve the above object, the synthetic resin capsule body of the present invention is a synthetic resin capsule body attached to a bottle cap of a beverage bottle, and is for fitting and fixing to a bottonole cap. A capsule body having a cylindrical recess, a capsule lid tightly coupled to the outer periphery of the capsule body by fitting or screwing, and the cylindrical recess being accommodated on the top inner surface of the capsule lid And a cup with a fixed bottom.

 The synthetic resin capsule body configured as described above can be easily fixed to the bottle cap by fitting the cylindrical recess provided in the capsule body to the bottle cap. It can be worn. When the capsule body and the capsule lid are coupled to each other, the cup is accommodated in a state in which the cylindrical recess is accommodated, and can be used by removing the capsule lid from the capsule body. After using the cup, the cup can be contained in the capsule body by connecting the capsule body and the capsule lid to each other. Since the cup is attached to the bottle cap in a state of being housed in the sealed capsule body, adhesion of dust and the like to the inner surface of the cup at the time of mounting can be prevented and kept hygienic.

 [0011] In the synthetic resin capsule body of the present invention, the cylindrical concave portion has its top inner surface in contact with the top of the bottle cap and its inner periphery fitted and fixed to the outer periphery of the bottle cap. Preferably, the height of the capsule lid is selected such that the top inner surface of the capsule lid and the top outer surface of the cylindrical recess are in close proximity or close proximity.

 According to this structure, even though the capsule body is attached to the bottle cap, the top of the capsule body is hardly higher than the top of the bottle cap, so storage and transportation of the bottle with the capsule body attached is performed. It is advantageous to

In addition, it is desirable that a plurality of ribs be provided substantially equally in the circumferential direction on the inner peripheral surface of the cylindrical recess, which enhances the fixing force of the cylindrical recess to the bottle cap. According to this structure, when the capsule body is attached to the bottle cap, the capsule body is firmly fixed to the bottle cap by the plurality of ribs being in pressure contact with the outer peripheral surface of the cap. If the pressure contact force of the rib against the outer peripheral surface of the cap is properly selected, the capsule body does not separate from the bottle cap force even if the beverage bottle filled with drinking water is lifted by gripping the capsule body. It is also possible.

 In addition, the wart-like raised portions may be uniformly distributed on the inner peripheral surface of the cylindrical recessed portion to increase the fixing force of the cylindrical recessed portion to the bottle cap.

 According to this structure, when the capsule body is attached to the bottle cap, the capsule body is firmly fixed to the bottle cap by elastically pressing the plurality of wart-like raised portions against the outer peripheral surface of the cap. . Also in this case, if the pressure on the outer surface of the cap is appropriately selected, the capsule body does not separate from the bottle cap even if the capsule body is gripped and the drinking bottle filled with drinking water is lifted. It is also possible to do so.

 In addition, a fitting groove may be provided on the inner wall of the cylindrical recessed portion to be fitted to a ring-shaped rib formed on the neck of a beverage bottle.

According to this structure, the cylindrical recess of the capsule body is fitted to the bottle cap, and the fitting groove is fitted to the ring-shaped rib formed on the neck of the beverage bottle, and the capsule cell is formed. The body can be securely fixed to the beverage bottle.

 Further, at the tip of the outer peripheral wall of the capsule body, a thin fitting portion closely fitted to the thin fitting portion formed at the tip of the outer peripheral wall of the capsule lid is formed. Is desirable. According to this structure, the thickness of the outer peripheral wall of the capsule body can be made uniform overall.

 In addition, the capsule lid may be configured to be locked to the bottom peripheral edge of the capsule body. According to this structure, the structure for fixing the capsule lid to the capsule body can be simplified.

Further, it is desirable that the cup is configured to be stretchable in the height direction. According to this structure, the capsule can be miniaturized since the cup can be accommodated in the capsule in a contracted state. [0020] Further, the cup includes a plurality of annular members which are divided in the height direction and are concentrically arranged and have different diameters, and the annular member having the smallest diameter among the plurality of annular members is the capsule. The members adjacent to each other of the plurality of annular members are slidable with each other and are configured to be joined without gaps when the members are slid in the extension direction. Desirable to have

In the case of the above-described configuration, when the cup is extended, the adjacent annular members constituting the cup are joined to each other without a gap, so that the cup becomes usable. After using the cup, it is possible to shorten the length of the cup by releasing the P-contacting annular members.

 Further, the annular member is expanded in diameter as it is separated from the fixing portion between the annular member having the smallest diameter and the capsule lid, and when the annular members adjacent to each other are slid in the extension direction Preferably, the outer surface of the largest diameter portion of the inner annular member and the inner surface of the smallest diameter portion of the outer annular member are joined together without a gap.

 According to this structure, it is possible to realize a simple structure in which the annular members adjacent to each other are joined without a gap when the cups are extended.

 Further, it is preferable that the annular member has, for example, a shape of an annular portion obtained by dividing a hollow cone in the height direction. According to this structure, it is possible to realize an extremely simple structure in which the annular members adjacent to each other are joined without any gap when the cup is extended.

 Furthermore, the cup may have a bellows part that expands and contracts in the height direction. In this case, the cup can be used by extending the bellows, and after use, can be contained in the capsule body by shortening the bellows.

 Effect of the invention

 According to the present invention, it is possible to realize a synthetic resin capsule body incorporating a cup, which can be easily attached to a bottle cap of a beverage bottle with a large fixing force.

 BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In each figure The same components are denoted by the same reference numerals.

 FIG. 1 is a perspective view showing an example of an embodiment of a synthetic resin capsule body according to the present invention, showing a state in which the synthetic resin capsule body is attached to a plastic bottle which is an example of a beverage bottle. There is. 2 is an exploded perspective view showing the synthetic resin capsule body shown in FIG. 1 before being attached to a PET bottle, and FIG. 3 is a longitudinal sectional view of the synthetic resin capsule body shown in FIG.

 The synthetic resin capsule body 1 is a molded product made of the same PET resin as the main body of the plastic bottle 4 and is contained in the capsule 2 attached to the bottle cap 5 of the plastic bottle 4 and the capsule 2 Have a cup 3 and make it.

 The capsule 2 has a capsule body 6 fitted and fixed to the bottle cap 5 and a capsule lid 7 detachably coupled to the capsule body 6.

 The capsule body 6 is provided so as to extend radially outward from the peripheral edge of the opening of the cylindrical recess 8 for fitting and fixing the cap 5 of the plastic bottle 4 and the cylindrical recess 8. And an annular bottom plate portion 9.

 As shown in FIG. 3, the cylindrical recess 8 is provided so as to protrude into the capsule 2.

 A plurality of ribs 8a are formed substantially equally in the circumferential direction on the inner peripheral surface of the cylindrical recess 8. When the capsule body 6 is mounted on the bottle cap 5, these ribs 8a are the outer periphery of the bottle cap 5 Even if the capsule main body 6 is firmly fixed to the bottle cap 5 by pressure-welding to the surface, and the capsule body 6 is gripped to lift the PET bottle filled with drinking water, the bottle cap 5 to the capsule main body 6 Will not leave. However, the capsule body 6 can be removed from the plastic bottle 4 by applying stronger force and separation force to the capsule body 6 and the pet bottle 4. In the illustrated example, the height of the rib 8a is increased in a tapered shape toward the back of the cylindrical recessed portion 8 so that attachment and removal force S of the capsule body 6 to the bottle cap 5 can be made smooth.

A cylindrical outer peripheral wall 10 is formed on the periphery of the bottom plate 9 of the capsule body 6 so as to project to the same side as the cylindrical recess 8. A thin fitting portion 1 Oa closely fitted with a thin fitting portion 11 a formed at the tip of the outer peripheral wall 11 of the capsule lid 7 is formed at the tip of the outer peripheral wall 10. The fitting portion 10 a on the capsule body 6 side is the inside of the tip of the outer peripheral wall 10 It is formed by leaving only a half, and the fitting portion 11 a on the capsule lid 7 side is formed by leaving only the outer half of the end of the outer peripheral wall 11.

 The capsule body 6 and the capsule lid 7 are closely joined by fitting the fitting parts 10a and 11a to each other, and constitute a capsule 2 having a cup storage space inside.

 The capsule lid 7 has a cylindrical outer peripheral wall 11 having the same diameter and the same thickness as the outer peripheral wall 10 of the capsule body 6, and a circular top wall 12 integrally formed with the outer peripheral wall 11. The cup 3 is attached to the inner surface of the top wall 12.

 [0036] The cup 3 is composed of a plurality (three in this example) of annular members 3-1, 3-2 and 3-3 which are divided in the height direction and concentrically arranged with different diameters. . These annular members 3-1, 3-2, 3-3 have the shape of the annular portion obtained when the hollow cone is divided in the height direction, and the smallest diameter annular member 3-1 among them. Is fixed to the top wall 12 of the capsule lid 7 without any gap using a method such as bonding. The members adjacent to each other 3-1 and 3-2, and 3-2 and 3_3 can slide relative to each other, and as shown in FIG. 3 (b), these members 3-1 and 3-2 and 3-2 When sliding 3 and 3 to the extension direction (direction of arrow A in the figure) to the limit, the structure is such that the two are joined without gaps.

 The synthetic resin capsule body 1 configured as described above is shown in FIG. 1 by fitting the cylindrical recessed portion 8 provided in the capsule body 6 to the bottle cap 5 of the plastic bottle 4. It can be attached to the pet bottonore 4. At this time, the cup 3 is accommodated in the capsule 2 in a contracted state. When using the cup 3, remove the capsule lid 7 from the capsule body 6 and extend the cup 3 to the limit. As a result, adjacent annular members constituting the glass 3 are joined to each other without a gap between the adjacent annular members 3-1 and 3-2, 3-2 and 3-3, so that the glass 3 can be used even if drinking water is poured. There will be no water leakage. After using the cup 3, the annular members in contact with each other P are unjoined by 3-1 and 3-2, 3-2 and 3-3 and the cup 3 is shrunk and the capsule body 6 and the capsule lid 7 The cup 3 is contained in the capsule 2 by bonding the two together.

As described above, by accommodating the cup 3 in the capsule body 1, adhesion of dust and the like to the inner surface of the cup 3 can be prevented, and the cup 3 can be kept hygienic. In addition, when the cup 3 is not used, it is accommodated in the capsule body 1 in a contracted state, and when used, the capsule body Since the capsule lid 7 is removed from 6 and the cup 3 is extended for use, the capsule body 1 can be miniaturized.

In addition, since the capsule body 1 is formed of the same PET resin as the main body of the plastic bottle 4, recycling can be carried out together with the main body of the plastic bottle 4 when the capsule body 1 is no longer needed. is there.

 The present invention is not limited to the above embodiment.

 In the above embodiment, the capsule body 6 is firmly attached to the bottle cap 5 by pressing the plurality of ribs 8 a provided on the inner wall of the cylindrical recess 8 against the outer peripheral surface of the bottle cap 5. I tried to fix it. For example, as shown in FIG. 5, the inner wall of the cylindrical recess 8 may be provided with a fitting groove 8b to be fitted to a ring-shaped rib 4a (see FIG. 2) formed on the neck of the PET bottle 4. With this configuration, the cylindrical recess 8 of the capsule body 6 is fitted to the bottle cap 5 and the fitting groove 8 b is fitted to the ring rib 4 a formed on the neck of the plastic bottle 4. The capsule body 6 can be securely fixed to the PET bottle 4.

 In addition, the vertical grooves formed on the outer peripheral surface of the bottle cap 5 at regular intervals (thin grooves in order to prevent the fingers from slipping when the bottle cap 5 is rotated) It is also effective to form on the inner wall of the cylindrical recess 8. In this configuration, the longitudinal groove formed on the outer peripheral surface of the bottle cap 5 and the longitudinal groove formed on the inner surface of the cylindrical recess 8 mutually engage with each other, whereby the bottle cap 5 and the bottle cap 5 are assembled. Idle rotation with the capsule body 6 (relative movement of the bottle cap 5 in the rotational direction) is prevented. Therefore, by holding the capsule body 1 and turning it, the bottle cap 5 can be turned with a weak force, so it is possible to easily open and close the plastic bottle 4 even for small children and elderly people such as old people. it can. The longitudinal groove of the cylindrical recess 8 may be formed on the entire inner surface so as to be engaged with the longitudinal groove on the bottle cap 5 side. The length of the longitudinal groove should be about half the height of the cylindrical recess 8.

 Further, in the above-described embodiment, as shown in FIG. 6, the tip of the outer peripheral wall 10 of the capsule body 6 and the tip of the outer peripheral wall 11 of the capsule lid 7 are fitted together. The cap lid 7 may be configured to be coupled to the outer surface of the outer peripheral wall 10 of the capsule body 6.

In the example of FIG. 6 (a), when the ring-shaped rib 10a is provided on the outer surface of the outer peripheral wall 10 of the capsule body 6, At the same time, a ring-shaped fitting groove 11a is provided in the vicinity of the opening end of the inner surface of the outer peripheral wall 11 of the capsule lid 7, and these are fitted to each other. With this configuration, the structure for fixing the capsule lid 7 to the capsule body 6 can be simplified.

 Further, in the example of FIG. 6 (b), an external thread 10b is formed on the outer surface of the outer peripheral wall 10 of the capsule body 6, and an internal thread lib in the vicinity of the opening end of the inner surface of the outer peripheral wall 11 of the capsule lid 7. They are formed and screwed together. According to this structure, the capsule lid 7 can be firmly fixed to the capsule body 6. In the configurations of Fig. 3 and Fig. 6 (a), in order to ensure that the capsule lid 7 comes off the capsule body 6 at the time of sale or transport, it is necessary to wrap it with a resin sheet or the like. There is, however, wrapping can be eliminated by screwing the two as shown in Figure 6 (b).

 Further, in the above embodiment, the cup 3 is configured by three annular members 3-1, 3-2, and 3-3, but even if it is configured by two annular members, the cup 3 may be configured by four or more annular members. It may be configured.

 In the above embodiment, the annular members 3-1, 3-2, 3_3 constituting the cup 3 have the shape of the annular portion obtained when the hollow cone is divided in the height direction. Force As shown in Figs. 7 and 8, it is possible to have the shape of an annular portion obtained when the pyramid is divided in the height direction. The annular members 13-1, 13-2, 13-3 of the cup 13 shown in FIG. 7 have the shape of the annular portion obtained when the quadrangular pyramid is divided in the height direction. The annular members 17-1, 17-2, 17-3 of the cup 17 shown in FIG. 8 have the shape of the annular portion obtained when the octagonal pyramid is divided in the height direction. Further, in the example of FIG. 7, the capsule body 15 and the capsule lid 16 constituting the capsule 14 are also formed in a rectangular shape in conformity with the shape of the cup 13. In the example of FIG. 8, the capsule body 19 and the capsule lid 20 constituting the capsule 18 are also formed into an octagonal shape in conformity with the shape of the cup 17. Also in these cases, the fitting portion with the bottle cap has the same structure as the cylindrical recess 3 shown in FIGS.

In the above embodiment, the annular members 3-1, 3-2, and 3-3 constituting the cup 3 are members different in diameter in the height direction, but FIG. 9 (a) As shown in these figures, these are simply cylindrical annular members 21-1, 21-2 and 21-3 having a constant diameter in the height direction, and the bulging portion 22 for sealing at the edge of each annular member. Adjacent members as shown in FIG. 9 (b). When the other members 21-1 and 2 卜 2, and 21-2 and 21-3 are slid in the extension direction, the seal bulging portion 22 formed on the outer surface of the end portion of the annular member positioned inside is positioned outside The seal bulging portion 22 formed on the inner surface of the end portion of the annular member may be joined to each other without a gap.

 Further, in the above embodiment, the cup apparatus provided with the cup 3 including the plurality of annular members 3-1, 3-2, 3-3 has been described, but FIGS. 10 (a), 10 (b). As shown, a capsule provided with a cup 24 having a bellows 23 which expands and contracts in the height direction is also included in the synthetic resin capsule body of the present invention.

 Further, in the above embodiment, the force shown in FIG. 11 (a) is that the height dimension of the outer peripheral wall 11 of the capsule lid 7 is larger than the height dimension of the outer peripheral wall 10 of the capsule body 6. Thus, the height dimension of the outer peripheral wall 11 of the capsule lid 7 may be smaller than the height dimension of the outer peripheral wall 10 of the capsule body 6. Further, as shown in FIG. 9 (b), the height dimensions of both outer peripheral walls 10 and 11 may be made to coincide with each other.

 Further, in the above embodiment, the capsule body 6 and the capsule are formed by fitting the fitting portions formed at the distal end portions of the outer peripheral walls 10 and 11 of the capsule body 6 and the capsule lid 7 to each other. Force S has a structure in which lid 7 is in close contact with each other, and a female screw is formed at the tip of one side wall of capsule body 6 and capsule lid 7 and a male screw at the tip of the other side wall The two screw parts may be screwed together.

 Further, in the above embodiment, when the capsule body 6 and the capsule lid 7 are joined, the space between the tip of the cylindrical recess 8 with the cap 5 and the top wall 12 of the capsule lid 7 is slightly Although a gap is generated (see FIG. 3), the capsule body 1 can be further miniaturized if it is designed such that the tip of the cylindrical recess 8 and the top wall 12 of the capsule lid 7 just touch each other.

 Further, in the above embodiment, a plastic bottle has been described as an example for mounting the glass apparatus 1, but the glass apparatus of the present invention is mounted on a bottle-shaped aluminum can, a bottle, or other beverage bottles. Applicable to the cop device.

 Brief description of the drawings

FIG. 1 is a perspective view showing an example of an embodiment of a synthetic resin capsule body according to the present invention, showing a synthetic resin capsule body attached to a PET bottle. FIG. 2 is an exploded perspective view showing a state before the synthetic resin capsule body of FIG. 1 is attached to a plastic bottle.

 FIG. 3 is a longitudinal sectional view of the synthetic resin capsule body of FIG. 1.

 [FIG. 4] (a) is a longitudinal sectional view showing a state in which the cup attached to the capsule lid of the synthetic resin capsule body in FIG. 1 is contracted, and (b) is a longitudinal sectional view showing the expanded state. is there.

 FIG. 5 is a longitudinal sectional view showing another embodiment of the synthetic resin capsule body of the present invention.

 FIG. 6 is a longitudinal cross-sectional view showing still another embodiment of the synthetic resin capsule body of the present invention, wherein (a) shows a configuration example in which a capsule body and a capsule lid are fitted to each other (B) shows an example of a configuration in which the capsule body and the capsule lid are screwed to each other.

 FIG. 7 is a view showing still another embodiment of the synthetic resin capsule body of the present invention, wherein (a) is a plan view of a cup and a capsule lid, and (b) is a synthetic resin capsule body Use a general perspective view.

 FIG. 8 is a view showing still another embodiment of the synthetic resin capsule body of the present invention, wherein (a) is a plan view of a cup and a capsule lid, and (b) is a synthetic resin capsule body Use a general perspective view.

 FIG. 9 is a view showing still another embodiment of the synthetic resin capsule body of the present invention, in which (a) is a longitudinal sectional view showing a lengthened state of the cup, and (b) is a lengthening of the cup It is a longitudinal cross-sectional view which shows a state.

 FIG. 10 is a view showing still another embodiment of the synthetic resin capsule body of the present invention, wherein (a) is a longitudinal sectional view showing a lengthened state of the cup, and (b) is an extension of the cup It is a longitudinal cross-sectional view which shows a state.

 [Fig. L l] (a) and (b) are perspective views showing still another embodiment of the synthetic resin capsule body of the present invention.

 [0065] FIG. 12 is a partial longitudinal sectional view showing the structure of a conventional bottle-mounted cup.

 Explanation of sign

1 Synthetic resin capsule body

 2 capsenore

3 cups -1, 3-2, 3-3 Ring member plastic bottle (bottle for beverage) cap

 Capsule body

 Capsenore lid

 Cylindrical recess

 The

-1, 13-2, 13-3 Annular member Capsenore

 Capsenore main body

-1, 17-2, 17-3 Annular member Capsule lid

 Cup

 Capsenore

 Capsule body

 Capsule lid

-1, 21-2 and 21-3 Annular members

 Cup

Claims

The scope of the claims  [1] A capsule body made of a synthetic resin attached to a bottle cap of a beverage bottle, wherein the capsule body has a cylindrical recess at the center of the bottom for fitting and fixing to the bottle cap,  A capsule lid tightly coupled to the outer periphery of the capsule body by fitting or screwing, and a cup having a bottom fixed to the inner surface of the top of the capsule lid so as to accommodate the cylindrical recess. A plastic resin force sensor attached to a bottle cap.  [2] The top surface of the cylindrical recess is in contact with the top of the bottle cap with the top inner surface thereof fitted and fixed to the outer periphery of the bottle cap, and the top surface of the capsule lid and the cylinder 2. A synthetic resin capsule body according to claim 1, wherein the height of the cover is selected so that the top of the recess is in close proximity to or in close proximity to the top outer surface of the recess.  [3] A plurality of ribs are provided substantially equally in the circumferential direction on the inner peripheral surface of the cylindrical recess, which enhances the fixing force of the cylindrical recess to the bottle cap. The synthetic resin capsule body according to 1 or 2. [4] A wart-like raised portion is uniformly distributed and formed on the inner peripheral surface of the cylindrical recessed portion to increase the fixing force of the cylindrical recessed portion to the bottle cap. The synthetic resin capsule body according to 1 or 2. [5] A fitting groove fitted to a ring-shaped rib formed on a neck portion of a beverage bottle is provided on the inner wall of the cylindrical recess, according to any one of claims 1 to 14. Synthetic resin capsule body as described.  [6] A thin fitting portion closely fitted to the thin fitting portion formed at the tip of the outer peripheral wall of the capsule lid is formed at the tip of the outer peripheral wall of the capsule body. The synthetic resin capsule body according to any one of claims 1 to 5, characterized in that [7] The synthetic resin capsule body according to any one of claims 1 to 15, wherein the capsule lid is configured to be locked to the bottom peripheral portion of the capsule body. [8] The cup according to the present invention is characterized in that the cup is configured to be stretchable in the height direction. The synthetic resin capsule body according to any one of 1 to 7. [9] The cup is  And a plurality of annular members which are divided in the height direction and arranged concentrically with different diameters.  The annular member having the smallest diameter among the plurality of annular members is fixed on the top inner surface of the capsule lid without any gap.  The members adjacent to each other of the plurality of annular members are slidable, and when the members are slid in the extension direction, they are joined together without a gap. Capsule body made of synthetic resin according to any one of 1 to 8 [10] The annular member is  The diameter of the ring member increases as it is separated from the fixed portion between the smallest diameter ring member and the capsule lid, and when the ring members adjacent to each other are slid in the extension direction, the maximum diameter of the ring member located inside 10. The synthetic resin capsule body according to claim 9, wherein the outer surface of the diameter portion and the inner surface of the smallest diameter portion of the annular member located outside are joined without a gap.  11. The synthetic resin capsule body according to claim 9, wherein the annular member has a shape of an annular portion obtained by dividing a hollow conical body in the height direction.  [12] The synthetic resin capsule body according to any one of claims 1 to 8, wherein the cup has a bellows part that expands and contracts in a height direction.