JPH0728049U - cap - Google Patents

Abstract

(57) [Abstract] [Purpose] A rubber-like elastic body is attached to the fitting groove of the cap body, and the rubber-like elastic body is elastically deformed between the cap body and the upper lid when the upper lid is closed. Make sure that the elastic body is elastically deformed. An upper lid 15 is integrally formed on a cap body 13 via a hinge 14, and a rubber-like elastic body 42 is provided between the cap body 13 and the upper lid 15. In the cap 12, a fitting groove 41 in the cap body 13 is formed. The intersection of the surrounding hinge-side surface and the inner wall surface of the fitting groove 41 is formed as a substantially right-angled or acute-angled stopper corner portion 53.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a cap such as a detergent container.

[0002]

[Prior art]

 In some conventional caps, the cap body is attached to the mouth of the container, and the upper lid of the cap body is openable and closable. Further, in such a cap, a leaf spring is arranged between the cap body and the upper lid as in the inventions disclosed in Japanese Utility Model Publication No. 3-69656 and Japanese Utility Model Publication No. 63-88965. The upper lid is opened by the biasing force of the spring.

However, the leaf spring has a strong urging force, so that the upper lid suddenly opens. Further, since the leaf spring is generally made of metal, it is easily rusted, and there is a possibility that the rust may be mixed with the contents in the container poured from the nozzle of the cap body.

Therefore, the applicant of the present invention proposes as a cap which can prevent the contents from being mixed with rust and can gently open the upper lid at an appropriate speed by the restoring force of the rubber-like elastic body. -168356 is proposed. This cap has an upper lid that is integrally formed with the cap body via a hinge so that the upper lid can be opened and closed.A rubber-like elastic body is attached near the hinge on at least one of the cap body and the upper lid, and the rubber-like elastic body is attached when the upper lid is closed. Is elastically deformed between the cap body and the upper lid, and is provided on the cap body and the upper lid, and has a lid locking means that locks each other when the lid is closed to generate a lid locking force. It is designed to be

According to the cap proposed by the applicant of the present invention, the rubber-like elastic body disposed between the cap body and the upper lid is configured to be elastically deformed when the upper lid is closed. When released, the upper lid can be opened by the restoring force of the elastically deformed rubber-like elastic body. Since this restoring force is not excessive like the leaf spring, the upper lid can be opened gently at an appropriate speed. Also, since the object that exerts a restoring force on the top lid is a rubber-like elastic body and is not made of metal such as a leaf spring, it does not corrode, so rust is mixed into the contents poured from the nozzle of the cap body. Never.

[0006]

[Problems to be solved by the device]

 However, as a result of the study by the present inventor, it was acknowledged that the cap adopting the above rubber-like elastic body proposed by the present applicant has the following technical problems. When the upper lid is closed, the rubber-like elastic body is elastically deformed between the cap body and the upper lid, so the rubber-like elastic body is compressed by the upper lid and slips into the fitting groove of the cap body and escapes. It is necessary to prevent this.

With the base end portion of the rubber-like elastic body engaged in the fitting groove of the cap body, the rubber-like elastic body is securely locked in the fitting groove even under the action of elastic deformation force or pulling force. It is necessary to hold it.

At the production stage of the cap, it is necessary to improve the productivity by making it easy to assemble the base end portion of the rubber-like elastic body into the fitting groove of the cap body.

According to the present invention, a rubber-like elastic body is attached to the fitting groove of the cap body, and the rubber-like elastic body is elastically deformed between the cap body and the upper lid when the upper lid is closed. The purpose is to reliably elastically deform the body.

It is another object of the present invention to ensure that the rubber-like elastic body is securely retained in the fitting groove even under the action of elastic deformation force or drawing force.

Another object of the present invention is to facilitate the incorporation of the rubber-like elastic body into the fitting groove of the cap body to improve its productivity.

[0012]

According to the present invention as set forth in claim 1, the upper lid is integrally formed on the cap body via a hinge so as to be openable and closable, and is fitted on the surface of the cap body near the hinge. The base end portion of the rubber-like elastic body is engaged in the groove, and the elastically deforming portion extending toward the upper lid side of the rubber-like elastic body is elastically deformed between the cap body and the upper lid when the upper lid is closed. A cap provided with a main body and an upper lid, and having a closing lid locking means that locks with each other when the upper lid is closed to generate a closing lid locking force, and is a fitting groove in the cap body. The intersection of the surrounding hinge side surface and the inner wall surface of the fitting groove is formed as a substantially right-angled or acute-angled stopper corner portion.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, the fitting groove is provided so as to penetrate from the front surface to the back surface of the cap body, and the rubber-like elastic member is provided. The base end portion of the body is provided with a protruding locking portion that locks on the hinge-side rear surface around the fitting groove in the cap body.

According to the present invention as set forth in claim 3, in the present invention as set forth in claim 1 or 2, the surface of the cap body other than the hinge-side surface around the fitting groove and the inside of the fitting groove are further included. A tapered guide surface is provided at the intersection with the wall surface.

[0015]

[Action]

 According to the present invention as set forth in claim 1, the following effects are obtained. The rubber-like elastic body interposed between the cap body and the upper lid is configured to elastically deform when the upper lid is closed, so when the closed state of the cap body and the upper lid is released, this elastic deformation The elastic restoring force of the rubber-like elastic body opens the upper lid. This restoring force is not excessive like the coil spring, and the top cover can be gently opened at an appropriate speed.

Further, since the member that gives a restoring force to the upper lid is a rubber-like elastic body and is not made of metal such as a coil spring, it does not corrode, and rust is not mixed into the contents poured from the spout of the cap body. It will never happen.

The rubber-like elastic body whose base end is locked in the fitting groove of the cap body is elastically deformed by the stopper corner portion when the elastic deformation accompanying the closing of the upper lid is caused by the elastic deformation. Accepted. Since the stopper corner is made of a substantially right angle or an acute angle, the stopper corner bites into the rubber-like elastic body compressed by the upper lid and prevents the rubber-like elastic body from slipping into the fitting groove. The elastic body is elastically deformed.

According to the present invention as set forth in claim 2, the following effects are obtained. When the base end of the rubber-like elastic body is engaged with the fitting groove of the cap body, the protruding locking part of the base end of the rubber-like elastic body engages with the back surface around the through fitting groove of the cap body. Be stopped. Therefore, even if the rubber-like elastic body is given an elastic deforming force of bending or an inadvertent pulling force is applied with the closure of the upper lid, the rubber-like elastic body does not come off from the fitting groove and is securely It is locked and held by.

At this time, since the protruding locking portion of the rubber-like elastic body is locked to the hinge-side back surface around the fitting groove, the elastic deformation force of the bending accompanying the closing of the upper lid is applied to the rubber-like elastic body. When acting, the projecting locking portion is pressed against the hinge-side rear surface around the fitting groove by the elastic deformation force of this bending, and a reliable locked state is formed.

In addition, in the practice of the present invention, if a protrusion-like engaging portion that engages with the rear surface of the rubber-like elastic body on the side opposite to the hinge side around the fitting groove is provided, this protrusion-like engaging member is provided. The stopper contributes to retaining and holding the rubber-like elastic body in the fitting groove against inadvertent pulling force. However, the protruding locking part that locks around the groove on the back surface on the side opposite to the hinge side is separated from the back surface on the side opposite to the hinge side by the elastic deformation force of the bending accompanying the above-mentioned closing lid, and the rubber-like elastic body against the elastic deformation force. It will not be held in place.

According to the present invention as set forth in claim 3, there is the following action. At the cap production stage, the base end of the rubber-like elastic body is the taper-shaped guide surface provided at the intersection of the surface of the cap body except the hinge side surface around the fitting groove and the inner wall surface of the fitting groove. It can be smoothly guided and can be easily assembled in the fitting groove, and its productivity can be improved.

[0022]

【Example】

 FIG. 1 is a schematic view showing a container to which a cap according to the first embodiment is applied, FIG. 2 is a schematic view showing an opened state of the cap according to the first embodiment, (A) is a sectional view, and (B) ) Is a plan view, FIG. 3 is a schematic view showing a closed state of the cap according to the first embodiment, FIG. 4 is a schematic view showing a rubber-like elastic body of the first embodiment, (A) is a perspective view, (B) is an end view, FIG. 5 is a schematic view showing a modified example of the rubber-like elastic body, (A) is a perspective view, (B) is an end view, and (C) is the rubber-like elastic body. FIG. 6 is a schematic view showing a closed state of the cap, FIG. 6 is a schematic view showing an opened state of the cap according to the second embodiment, (A) is a sectional view, and (B) is a plan view.

(First Embodiment) (FIGS. 1 to 3) A container 10 has a cap 12 attached to an opening of a container body 11, and the container body 11 is squeezed (squeezed) while the cap 12 is open. ) It is possible to pour out the contents such as detergent by squeezing.

The cap 12 has an upper lid 15 that can be opened and closed via a hinge 14 on the cap body 13. The cap body 13, the hinge 14, and the upper lid 15 are integrally formed of thermoplastic resin such as polypropylene.

The cap body 13 includes a top surface portion 22 having a spout 21, a mounting tube 23 integrally provided around the spout 21 of the top surface portion 22, and a mounting tube 23 around the top surface portion 22. The outer cylinder 24 is provided. Further, the cap body 13 has a recess 25 at a position facing the hinge 14 of the outer tube 24 on the front surface side of the cap 12. The mounting tube 23 has a round tubular shape and has an internal thread 26. The internal thread 26 is screwed onto an external thread provided in the opening of the container body 11 to enable the cap 12 to be attached to the container body 11. . The outer cylinder 24 is a rectangular cylinder that fits the outer diameter of the container body 11.

The upper lid 15 is bowl-shaped and has a protrusion-shaped sealing engagement portion 31 at the center of the inner surface thereof, which can be engaged with the spout 21 of the cap body 13 in a sealed state to maintain the closed state. . The spout 21 and the sealing engagement portion 31 constitute the closing lid locking means of the present invention, and when the upper lid 15 is closed, they are locked to each other to generate a closing lid locking force. Further, the upper lid 15 has an opening operation portion 32 that can apply an opening operation force above the recess 25 provided in the cap body 13 on the front side of the cap 12.

Now, in the top surface portion 22 of the cap body 13, the base end portion 43 of the rubber-like elastic body 42 is locked in the fitting groove 41 opened on the surface near the hinge 14 to close the upper lid 15. At times, the elastically deformable portion (the tip end portion 44 and the intermediate portion 45) extending toward the upper lid 15 side of the rubber elastic body 42 is provided with elastic deformation of compression and bending between the cap body 13 and the upper lid 15. .

The rubber-like elastic body 42 is composed of rubber or elastomer (for example, a methyl vinyl raw rubber synthesized with KE951U manufactured by Shin-Etsu Chemical Co., Ltd. as a compound and C-8 manufactured by the same company as a vulcanizing agent). It The rubber-like elastic body 42 has a substantially U-shaped cross section as shown in FIGS. 2 (A), 4 (A), and (B), and is a base engaged with the fitting groove 41 of the cap body 13. The upper lid 15 has an end portion 43, a distal end portion 44 that extends along the inner surface of the upper lid 15 when the upper lid 15 is opened, and an intermediate portion 45 that connects the proximal end portion 43 and the distal end portion 44. When the lid is closed, the base end portion 43, the tip end portion 44 and the intermediate portion 45 form a substantially U-shaped cross section. The tip end portion 44 of the rubber-like elastic body 42 is formed in a tapered wedge shape, and when the top lid 15 is closed, the tip end portion 44 comes into contact with the inner surface of the top lid 15, and the tip end portion 44 as the elastically deforming portion is formed. Elastic deformation of compression and bending is applied to the intermediate portion 45.

That is, as shown in FIGS. 2 and 3, in the process of closing the upper lid 15, the tip end portion 44 of the rubber-like elastic body 42 abuts against the inner surface of the upper lid 15 and is pressed. By this pressing, the tip end portion 44 of the rubber-like elastic body 42 bends inward, the rubber-like elastic body 42 is bent and deformed at the A portion 42A and the B portion 42B, and when the upper lid 15 is closed, the tip end portion 44 is made of rubber. The inner surface 42C of the elastic body 42 and the inner surface of the upper lid 15 are compressed and deformed so as to be folded.

However, in the cap 12, the intersection of the hinge-side surface 51 around the fitting groove 41 in the cap body 13 and the inner wall surface 52A of the fitting groove 41 is formed at a substantially right or acute stopper corner. Part 53.

Further, in the cap 12, a fitting groove 41 is provided so as to penetrate from the surface of the cap body 13 to the back surface thereof, and the base end portion 43 of the rubber-like elastic body 42 is fitted in the cap body 13. It is provided with a protruding locking portion 54 that locks on the hinge-side rear surface around the mating groove 41, and a protruding locking portion 55 that locks on the non-hinge-side rear surface around the fitting groove 41.

In the cap 12, the tape-shaped guide surface is provided on the surface of the cap body 13 excluding the hinge-side surface around the fitting groove 41 and the inner wall surfaces 52 B, 52 C, 52 C of the fitting groove 41. 56, 57 and 57 are provided.

Therefore, the cap 12 is opened and closed as follows. (1) When the cap 12 is closed, the sealing engagement portion 31 of the upper lid 15 sealingly engages the spout 21 of the cap body 13 to generate a closing lid locking force, and the closed state is maintained. . At this time, the rubber-like elastic body 42 is elastically deformed by bending and compressing between the cap body 13 and the upper lid 15.

(2) When the lid 12 is opened, the container main body 11 is grasped with one hand, and the lid opening operation force of the upper lid 15 is pushed up by the opening operation force applied by the thumb, for example. As a result, the upper lid 15 is pushed up in the opening direction around the hinge 14, and the sealing engagement portion 31 of the upper lid 15 is disengaged from the spout 21 of the cap body 13. Simultaneously with the disengagement of the sealing engagement portion 31 and the spout 21, the elastic restoring force of the rubber-like elastic body 42 in the elastically deformed state of the above (1) acts as the opening force of the upper lid 15 and the upper lid 15 is opened. Open the lid.

The operation of this embodiment will be described below. Since the rubber-like elastic body 42 interposed between the cap body 13 and the upper lid 15 is configured to elastically deform when the upper lid 15 is closed, the closed state of the cap body 13 and the upper lid 15 is released. Then, the elastic restoring force of this elastically deformed rubber-like elastic body 42 opens the upper lid 15. This restoring force is not excessive like the coil spring, and can cause the upper lid 15 to gently open at an appropriate speed.

Further, the member that gives a restoring force to the upper lid 15 is the rubber-like elastic body 42, which is not made of metal like the coil spring, so that it does not corrode and is poured out from the spout 21 of the cap body 13. No rust is mixed in with the product.

Further, since the one end portion 43 of the rubber-like elastic body 42 is fitted in the fitting groove 41 of the cap body 13 and no adhesive or the like is used, the adhesive does not flow out to the contents in the container. Moreover, the phenomenon that the adhesive is deteriorated by the contents does not occur.

The rubber-like elastic body 42 whose base end portion 43 is locked in the fitting groove 41 of the cap body 13 is elastically deformed to extend toward the upper lid 15 side when the upper lid 15 is elastically deformed as the lid is closed. The portions (the tip portion 44 and the intermediate portion 45) are received by the stopper corner portion 53. Since the stopper corner portion 53 has a substantially right angle or an acute angle, the stopper corner portion 53 bites into the rubber-like elastic body 42 compressed by the upper lid 15 and prevents the rubber-like elastic body 42 from sliding into the fitting groove 41. As a result, the rubber-like elastic body 42 is surely elastically deformed.

When the base end portion 43 of the rubber-like elastic body 42 is engaged with the fitting groove 41 of the cap body 13, the protruding locking portions 54 and 55 of the base end portion 43 of the rubber-like elastic body 42 are capped. It is locked to the back surface of the main body 13 around the through fitting groove 41. Therefore, even if the rubber-like elastic body 42 is given an elastic deformation force of bending or an inadvertent pulling force is applied along with the closing of the upper lid 15, the rubber-like elastic body 42 is disengaged from the fitting groove 41. It is securely held without being locked.

At this time, since the protruding locking portion 54 of the rubber-like elastic body 42 is locked to the hinge-side rear surface around the fitting groove 41, the elastic deformation force of the bending due to the closing of the upper lid 15 is rubber. When acting on the elastic body 42, the projecting locking portion 54 is pressed against the hinge-side back surface around the fitting groove 41 by the elastic deformation force of this bending, and a reliable locked state is formed. .

The base end portion 43 of the rubber-like elastic body 42 is also provided with a protruding locking portion 55 that locks on the surface opposite to the hinge side around the fitting groove 41, and the protruding locking portion 55. Contributes to retaining and holding the rubber-like elastic body 42 in the fitting groove 41 against an inadvertent pulling force. However, the projecting locking portion 55 that locks on the rear surface of the anti-hinge side around the groove is separated from the rear surface of the non-hinge side by the elastic deformation force of the bending accompanying the above-mentioned closing lid, and the rubber-like elastic body 42 is elastic. It does not lock and hold against deformation force.

Therefore, the above-mentioned rubber-like elastic body 42 can be deformed like the rubber-like elastic body 42A shown in FIG. The rubber-like elastic body 42A is obtained by removing the protruding locking portion 55 of the rubber-like elastic body 42 and providing a tapered guide surface 58 at this deleted portion. The taper-shaped guide surface 58 facilitates incorporation of the base end portion 43 into the fitting groove 41 together with the tapered guide surface 56 on the cap body 13 side.

At the production stage of the cap 12, the base end portion 43 of the rubber-like elastic body 42 intersects with the surface of the cap body 13 except the hinge side surface around the fitting groove 41 and the inner wall surface of the fitting groove. The taper guide surfaces 56, 57, 57 provided on the section are smoothly guided and can be easily assembled in the fitting groove 41, so that the productivity can be improved.

In the cap 12, the surface of the top surface portion 22 of the cap body 13 and the outer surface of the intermediate portion 45 of the rubber-like elastic body 42 are substantially in the open state shown in FIG. 2A. Set to the same level. This has the effect of making the presence of the rubber-like elastic body 42 inconspicuous when the upper lid 15 is opened.

(Second Embodiment) (FIG. 6) The cap body 110 is formed by connecting a cap body 111 and an upper lid 112 so as to be openable and closable by a hinge 113.

The cap body 111 has a substantially cylindrical shape having a top surface 114, and an internal thread 116 is formed on the inner surface of the tubular portion 115. A male screw is formed at the mouth of the container (not shown), and the female screw 116 is screwed onto this male screw to attach the cap 110 to the container. In addition, a nozzle portion 118 is formed in the central portion of the bulging portion 117 on the top surface 114, and a nozzle port 119 is opened in this nozzle portion 118. By squeezing the container or the like, the contents in the container can be discharged (pour out) from the nozzle port 119.

The upper lid 112 has a substantially bowl shape, and an inner seal 120 is integrally formed in a central portion and an outer seal 121 is integrally formed around the inner seal 120. When the upper lid 112 is closed, the inner seal 120 is provided so as to be liquid-tightly fittable into the nozzle opening 119. Further, the outer seal 121 is formed in a cylindrical shape. The outer seal 121 is provided so as to be fluid-tightly fitted between the bulging portion 117 and the nozzle portion 118 when the upper lid 112 is closed. The nozzle opening 119 is reliably sealed by the inner seal 120 and the outer seal 121.

The hinge 113 is thinly formed between the cap body 111 and the upper lid 112, and is configured so that only the hinge fulcrum portion can be flexibly deformed. The position of the hinge fulcrum is fixed. And is integrally formed with the upper lid 112. In addition, a locking surface 122 is formed on the cap body 111 at a position opposite to the hinge 113. When the upper lid 112 is closed, the engaging portion 123 of the upper lid 112 is provided on the engaging surface 122 so as to be fittable. The locking surface 122 and the locking portion 123 are configured as the locking means 124. The outer seal 121 is also fitted between the bulging part 117 and the nozzle part 118, and functions as a closing lid locking means.

Now, on the top surface portion 114 of the cap body 111, the base end portion 143 of the rubber-like elastic body 142 is locked in the fitting groove 141 opened on the surface near the hinge 113, and the lid lid 112 is closed. At times, elastic deformation portions (the front end portion 144 and the intermediate portion 145) extending toward the upper lid 112 side of the rubber-like elastic body 142 are provided with elastic deformation of compression and bending between the cap body 111 and the upper lid 112. The base end portion 143 of the rubber-like elastic body 142 has a concave engaging portion, and the inner wall surfaces 152A and 152B of the fitting groove 141 have convex engaging portions. The concave-convex engaging portion engages and holds the fitting groove 141.

The rubber-like elastic body 142 is made of rubber or elastomer (for example, a methyl vinyl raw rubber synthesized with KE951U manufactured by Shin-Etsu Chemical Co., Ltd. as a compound and C-8 manufactured by the same company as a vulcanizing agent). To be done. Further, the rubber-like elastic body 142 has a substantially U-shaped cross section as shown in FIG. 6A, and has a base end portion 143 engaged with the fitting groove 141 of the cap body 111 and an opening of the upper lid 112. It has a distal end portion 144 that extends along the inner surface of the upper lid 112 when the lid is opened, and an intermediate portion 145 that connects the proximal end portion 143 and the distal end portion 144. When the upper lid 112 is opened, these base end portions 143 and The tip portion 144 and the intermediate portion 145 form a substantially U-shaped cross section. The tip portion 144 of the rubber-like elastic body 142 is formed in a tapered wedge shape, and when the top lid 112 is closed, the tip portion 144 comes into contact with the inner surface of the top lid 112, and the tip portion 144 as the elastically deforming portion. And the intermediate portion 145 is given elastic deformation by compression and bending.

That is, as shown in FIG. 6, in the process of closing the upper lid 112, the tip of the tip end portion 144 of the rubber-like elastic body 142 abuts against the inner surface of the upper lid 112 and is pressed. By this pressing, the tip portion 144 of the rubber-like elastic body 142 bends inward, the rubber-like elastic body 142 bends and deforms at the A portion 142A and the B portion 142B, and when the upper lid 112 is closed, the tip portion 144 is made of rubber. As it is folded between the inner surface 142C of the elastic body 142 and the inner surface of the upper lid 112, it is compressed and deformed.

However, in the cap 110, the intersection of the hinge-side surface 151 around the fitting groove 141 in the cap body 111 and the inner wall surface 152A of the fitting groove 141 is formed into a substantially right-angled or acute-angled stopper corner. It is defined as a part 153.

Further, in the cap 110, the surface of the cap body 111 excluding the hinge side surface around the fitting groove 141, the inner wall surfaces 152B, 152C, 152C of the fitting groove 141, the tapered guide surface 156, 157 and 157 are provided.

Therefore, the cap 110 is opened and closed as follows. (1) When the cap 110 is closed, the locking portion 123 of the upper lid 112 engages with the locking surface 122 of the cap body 111 to generate a closing lid locking force, and the closed state is maintained. At this time, the rubber-like elastic body 142 is elastically deformed by bending and compressing between the cap body 111 and the upper lid 112.

(2) When the cap 110 is opened, the container body 111 is grasped by one hand, and the upper lid 112 is pushed up by the opening operation force applied by the thumb, for example. As a result, the upper lid 112 is pushed up in the opening direction with the hinge 113 as the center, and the locking portion 123 of the upper lid 112 is disengaged from the locking surface 122 of the cap body 111. Simultaneously with the disengagement of the locking portion 123 and the locking surface 122, the elastic restoring force of the rubber-like elastic body 142 in the elastically deformed state of the above (1) acts as an opening force of the upper cover 112, and the upper cover 112. Open the lid.

The operation of this embodiment will be described below. Since the rubber-like elastic body 142 interposed between the cap body 111 and the upper lid 112 is configured to elastically deform when the upper lid 112 is closed, the closed state of the cap body 111 and the upper lid 112 is released. Then, the elastic restoring force of this elastically deformed rubber-like elastic body 142 opens the upper lid 112. This restoring force is not excessive as in the coil spring, and the upper lid 112 can be gently opened at an appropriate speed.

Further, the member that gives the restoring force to the upper lid 112 is the rubber-like elastic body 142, which is not made of metal like a coil spring and thus does not corrode and is poured out from the nozzle port 119 of the cap body 111. No rust is mixed in with the product.

Further, since the base end portion 143 of the rubber-like elastic body 142 is fitted in the fitting groove 141 of the cap body 111 and an adhesive agent or the like is not used, the adhesive agent flows out to the contents in the container. In addition, the phenomenon that the adhesive is deteriorated by the contents does not occur. By doing so, it was possible to increase the opening angle to 110 degrees when left standing for 24 hours at 5 ° C, while making the thickness of the rubber-like elastic body as thin as 1.6mm (spring force 234gf).

The rubber-like elastic body 142 having the base end portion 143 locked in the fitting groove 141 of the cap body 111 elastically extends toward the upper lid 112 side when the upper lid 112 elastically deforms when the lid is closed. The portions (the tip portion 144 and the intermediate portion 145) are received by the stopper corner portion 153. Since the stopper corner portion 153 has a substantially right angle or an acute angle, the stopper corner portion 153 bites into the rubber-like elastic body 142 compressed by the upper lid 112 and prevents the rubber-like elastic body 142 from slipping into the fitting groove 141. As a result, the rubber-like elastic body 142 is surely elastically deformed.

At the production stage of the cap 110, the base end portion 143 of the rubber-like elastic body 142 has a surface other than the hinge side surface around the fitting groove 141 in the cap body 111 and the inner wall surface 152 B of the fitting groove 141. , 152C, 152C, are smoothly guided by the tapered guide surfaces 156, 157, 157 provided at the intersections, and can be easily assembled in the fitting groove 141, so that the productivity can be improved.

The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration of the present invention is not limited to this embodiment, and changes in design within the scope not departing from the gist of the present invention can be made. Even if it exists, it is included in the present invention.

[0062]

[Effect of device]

 As described above, according to the present invention, the rubber-like elastic body is attached to the fitting groove of the cap body, and the rubber-like elastic body is elastically deformed between the cap body and the upper lid when the upper lid is closed. The elastic body can be surely elastically deformed.

Further, according to the present invention, the rubber-like elastic body can be securely locked and held in the fitting groove even under the action of the elastic deformation force or the pulling force.

Further, according to the present invention, the rubber-like elastic body can be easily assembled in the fitting groove of the cap body, and the productivity thereof can be improved.

[Brief description of drawings]

FIG. 1 is a schematic view showing a container to which a cap according to a first embodiment is applied.

2A and 2B are schematic diagrams showing an opened state of the cap according to the first embodiment, FIG. 2A being a sectional view and FIG. 2B being a plan view.

FIG. 3 is a schematic view showing a closed state of the cap according to the first embodiment.

FIG. 4 is a schematic view showing a rubber-like elastic body of the first embodiment, (A) is a perspective view and (B) is an end view.

5A and 5B are schematic views showing a modified example of a rubber-like elastic body, FIG. 5A is a perspective view, FIG. 5B is an end view, and FIG. 5C is a closing view of a cap using this rubber-like elastic body. It is a schematic diagram which shows a lid state.

6A and 6B are schematic views showing an opened state of the cap according to the second embodiment, FIG. 6A being a sectional view and FIG. 6B being a plan view.

[Explanation of symbols]

 12, 110 Cap 13, 111 Cap main body 14, 113 Hinge 15, 112 Upper lid 21 Pouring outlet (closing lid locking means) 31 Sealing engagement part (closing lid locking means) 122 Locking surface (closing lid locking means) 123 Locking part (closing lid locking means) 41, 141 Fitting grooves 42, 142 Rubber-like elastic bodies 43, 143 Base end parts 53, 153 Stopper corner parts 54, 154 Protrusion-like locking parts 56, 57, 156, 157 Tapered guide surface

Claims (3)

[Scope of utility model registration request] 1. A cap main body is integrally formed with a cap body via a hinge so as to be openable and closable, and a base end portion of a rubber-like elastic body is inserted into a fitting groove formed on a surface of the cap body near the hinge, and the cap is formed. When the lid is closed, an elastically deformable portion extending toward the upper lid side of the rubber-like elastic body is elastically deformed between the cap body and the upper lid, and is provided on the cap body and the upper lid, and they are locked to each other when the upper lid is closed. And a lid-locking means for generating a lid-locking force, and a crossing portion between the hinge-side surface around the fitting groove in the cap body and the inner wall surface of the fitting groove is formed. , A cap that serves as a stopper corner portion of a substantially right angle or an acute angle. 2. A projection in which the fitting groove is provided so as to penetrate from the front surface to the back surface of the cap body, and the base end portion of the rubber-like elastic body is locked to the hinge-side back surface around the fitting groove in the cap body. The cap according to claim 1, further comprising a shape locking portion. 3. An intersection of a surface of the cap body excluding a hinge-side surface around the fitting groove and an inner wall surface of the fitting groove,
The cap according to claim 1 or 2, wherein the cap has a tapered guide surface.