EP0608755A1 - Cap with resiliently reversing lid - Google Patents

Cap with resiliently reversing lid Download PDF

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Publication number
EP0608755A1
EP0608755A1 EP94100652A EP94100652A EP0608755A1 EP 0608755 A1 EP0608755 A1 EP 0608755A1 EP 94100652 A EP94100652 A EP 94100652A EP 94100652 A EP94100652 A EP 94100652A EP 0608755 A1 EP0608755 A1 EP 0608755A1
Authority
EP
European Patent Office
Prior art keywords
circumferential wall
cover
elastic bands
cap
circumferential
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94100652A
Other languages
German (de)
French (fr)
Other versions
EP0608755B1 (en
Inventor
Takamitsu Nozawa
Takaharu Tasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yoshino Kogyosho Co Ltd
Original Assignee
Yoshino Kogyosho Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yoshino Kogyosho Co Ltd filed Critical Yoshino Kogyosho Co Ltd
Publication of EP0608755A1 publication Critical patent/EP0608755A1/en
Application granted granted Critical
Publication of EP0608755B1 publication Critical patent/EP0608755B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/06—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages
    • B65D47/08—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures
    • B65D47/0804—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage
    • B65D47/0809—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions
    • B65D47/0814—Closures with discharging devices other than pumps with pouring spouts or tubes; with discharge nozzles or passages having articulated or hinged closures integrally formed with the base element provided with the spout or discharge passage and elastically biased towards both the open and the closed positions by at least three hinge sections, at least one having a length different from the others

Definitions

  • the present invention relates to a cap structure having an elastically turnover cover.
  • the "cap structure” used herein is meant to include a cap and a container with a cap.
  • the cap having the elastically turnover cover there is known a cap which is integrally molded of a synthetic resin and having its cap body and cover hinged at three points, as called so, as is used in the container of Japanese Utility Model Laid-Open No. 34049/1988, for example.
  • This cap is formed by integrally connecting a cap body and a cap opening cover into one piece by means of the three-point hinge.
  • This three-point hinge structure is composed of: first two hinges for connecting the upper end of the rear portion of the circumferential wall of the cap body and the lower end of the rear portion of the circumferential wall of the cover placed on the cap body; and second and third hinges for connecting L-shaped elastic plates between the first circumferential wall portion below those the first hinges and the front portion of the top wall of the cover at the upper end of the circumferential wall portion of the cover between the two hinges.
  • both the circumferential wall portion of the cover in front of the rising portions of the L-shaped elastic plates and the top wall portion of the cover below tie horizontal portion are notched for parting the mold.
  • the notched portions of the top wall of the cover deteriorate the appearance of the cover. Still the worse, the notches makes it incomplete to shut off the mouth of the cap body with the cover.
  • the present invention contemplates to provide a cap structure which can be formed of only the individual rear portions of the circumferential walls of the cap body and the cover without notching the circumferential wall and top wall of the cover, so that the cover may have its appearance improved and may seal up the mouth of the cap body when in the closing operation.
  • each of curved elastic bands 12 is to have its cover side end 12b moved along an arc a, which has a radius of a straight distance from the body side end 12a to the cover side end 12b of the elastic band 12. Since, however, the cover 5 is turned on hinges 10, it is allowed to move along an arc b which has a radius of a straight distance from the hinges 10 to the cover side end 12b.
  • the elastic band 12 is extended till the dead center A against its elasticity and is shrunken after the dead center A by its elastic controlling force so that the cover is elastically turned over to establish the closed state.
  • the cover opening operation could be likewise understood.
  • the elastic band 12 may have its intermediate portion curved to the front in the closed state of Fig. 4.
  • FIGs. 6 to 8 Another embodiment shown in Figs. 6 to 8 might be thought like the case of the foregoing first embodiment.
  • each of the elastic bands 12 is curved in a letter "C" not only in the open state but also in the closed state, in which it is received in a recess 13. According to this embodiment, the elastic bands can be prevented from being forcibly extended more than their limits even when they pass through the dead center A at which they are extended to their maximum strokes.
  • Reference numeral 1 designates the body of a cap structure having a first circumferential wall 2.
  • This first circumferential wall 2 is formed into a circumferential wall to be fitted on the outer circumference of the neck of a container, in case the body 1 is a cap, and has its lower end shut out with a bottom wall in case the cap structure is a container body.
  • the first circumferential wall has its top covered with a top plate 4 having a pouring port 3, but this top plate 4 can be eliminated.
  • a cover which is molded of polyethylene of the like integrally with the aforementioned body 1 .
  • This cover 5 can be turned on a later-described hinge to open or close the top of the first circumference.
  • a second circumferential wall 7 depends from the outer circumference of a top wall 6 and can have its lower end placed on the upper end of the first circumferential wall 2.
  • first and second circumferential walls 2 and 7 having a top plan view of a true circle are connected at their rear upper and lower ends by the hinge 10 and at the righthand and lefthand sides of the hinge 10 by a pair of C-shaped elastic bands 12 and 12.
  • These elastic bands are fitted in the recesses 13, which are formed to extend between the upper and lower portions of the individual backs of the first and second circumferential walls 2 and 7.
  • the recesses 13 have their lower end rear edges and upper end rear edges connected to the lower and upper ends of the elastic bands 12 through second and third hinges 14 and 15.
  • Figs 1 to 3 show an embodiment of the invention.
  • the C-shaped elastic bands are fitted in the recesses 13 formed in the backs of the first and second circumferential walls of the body and the cover when in the closed state, the elastic bands will not deteriorate the appearance of the cap structure.
  • a dead centre A the point of intersection between a straight line C containing the body side end of bands 12 and hinge 10 and an arc b is designated a dead centre A.
  • Bands 12 are extended till dead center A against their elastic force so that the cover is elastically turned over to establish the closed state.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Closures For Containers (AREA)

Abstract

Described is a snap-type cap structure made of synthetic resin, comprising a body (1) having a first circumferential wall (2), a cover (5) having a second circumferential wall (7) placed on the first circumferential wall (2) and a first hinge (10) for connecting said first and second circumferential walls, and a pair of elastic bands (12) which are provided on both sides of the first hinge for connecting said first and second circumferential walls. A pair of recesses (13) each being formed by a lower recess portion on the first circumferential wall and an upper recess portion on the second circumferential wall, which are provided at positions corresponding to said elastic bands. The ends of the elastic bands (12) are connected through second and third hinges (14,15) to outer edges of the upper and lower ends of the recesses, and the elastic bands have C-shaped longitudinal sections in a closed state and an open state in which the cover is turned over, while the elastic bands being fitted into the recess in the closed state.

Description

    Technical Field
  • The present invention relates to a cap structure having an elastically turnover cover. The "cap structure" used herein is meant to include a cap and a container with a cap.
    • Background Art
  • As the cap having the elastically turnover cover, there is known a cap which is integrally molded of a synthetic resin and having its cap body and cover hinged at three points, as called so, as is used in the container of Japanese Utility Model Laid-Open No. 34049/1988, for example. This cap is formed by integrally connecting a cap body and a cap opening cover into one piece by means of the three-point hinge. This three-point hinge structure is composed of: first two hinges for connecting the upper end of the rear portion of the circumferential wall of the cap body and the lower end of the rear portion of the circumferential wall of the cover placed on the cap body; and second and third hinges for connecting L-shaped elastic plates between the first circumferential wall portion below those the first hinges and the front portion of the top wall of the cover at the upper end of the circumferential wall portion of the cover between the two hinges.
  • In order that the three-point hinged cap may be integrally molded of a synthetic resin, both the circumferential wall portion of the cover in front of the rising portions of the L-shaped elastic plates and the top wall portion of the cover below tie horizontal portion are notched for parting the mold. Especially, the notched portions of the top wall of the cover deteriorate the appearance of the cover. Still the worse, the notches makes it incomplete to shut off the mouth of the cap body with the cover.
  • In order to eliminate the defects of the aforementioned example of the prior art, in which the horizontal plates are attached to the elastic plates and are extended to the central portion of the top wall of the cover, the present invention contemplates to provide a cap structure which can be formed of only the individual rear portions of the circumferential walls of the cap body and the cover without notching the circumferential wall and top wall of the cover, so that the cover may have its appearance improved and may seal up the mouth of the cap body when in the closing operation.
    • Disclosure of the invention
  • In case of an embodiment shown in Fig. 1 to 5, if a cover 5 is pushed up from the open state of Fig. 5, each of curved elastic bands 12 is to have its cover side end 12b moved along an arc a, which has a radius of a straight distance from the body side end 12a to the cover side end 12b of the elastic band 12. Since, however, the cover 5 is turned on hinges 10, it is allowed to move along an arc b which has a radius of a straight distance from the hinges 10 to the cover side end 12b. If the point of intersection between a straight line c containing the body side end 12a and the hinges 10 and the aforementioned arc b is designated at a dead center A, the elastic band 12 is extended till the dead center A against its elasticity and is shrunken after the dead center A by its elastic controlling force so that the cover is elastically turned over to establish the closed state. The cover opening operation could be likewise understood.
  • Incidentally, the elastic band 12 may have its intermediate portion curved to the front in the closed state of Fig. 4.
  • Another embodiment shown in Figs. 6 to 8 might be thought like the case of the foregoing first embodiment.
  • In this embodiment, each of the elastic bands 12 is curved in a letter "C" not only in the open state but also in the closed state, in which it is received in a recess 13. According to this embodiment, the elastic bands can be prevented from being forcibly extended more than their limits even when they pass through the dead center A at which they are extended to their maximum strokes.
    • Fig. 1 to 3 show an embodiment of Fig. 1 is a perspective view showing the open state;
    • Fig. 2 is a perspective view showing the closed state from the back; and
    • Fig. 3 is an enlarged side elevation showing an essential portion.
  • Reference numeral 1 designates the body of a cap structure having a first circumferential wall 2. This first circumferential wall 2 is formed into a circumferential wall to be fitted on the outer circumference of the neck of a container, in case the body 1 is a cap, and has its lower end shut out with a bottom wall in case the cap structure is a container body. In the shown embodiment, the first circumferential wall has its top covered with a top plate 4 having a pouring port 3, but this top plate 4 can be eliminated.
  • Indicated at reference numeral 5 is a cover which is molded of polyethylene of the like integrally with the aforementioned body 1 .This cover 5 can be turned on a later-described hinge to open or close the top of the first circumference. In the cover 5, a second circumferential wall 7 depends from the outer circumference of a top wall 6 and can have its lower end placed on the upper end of the first circumferential wall 2.
  • In this embodiment, the first and second circumferential walls 2 and 7 having a top plan view of a true circle are connected at their rear upper and lower ends by the hinge 10 and at the righthand and lefthand sides of the hinge 10 by a pair of C-shaped elastic bands 12 and 12. These elastic bands are fitted in the recesses 13, which are formed to extend between the upper and lower portions of the individual backs of the first and second circumferential walls 2 and 7. The recesses 13 have their lower end rear edges and upper end rear edges connected to the lower and upper ends of the elastic bands 12 through second and third hinges 14 and 15.
  • This embodiment is formed in the open state, as shown in Fig. 1. Figs 1 to 3 show an embodiment of the invention.
    • Fig. 1 is a perspective view showing the open state;
    • Fig. 2 is a perspective view showing the closed state from the back; and
    • Fig. 3 is an enlarged side elevation showing an essential portion.
  • Since, the C-shaped elastic bands are fitted in the recesses 13 formed in the backs of the first and second circumferential walls of the body and the cover when in the closed state, the elastic bands will not deteriorate the appearance of the cap structure.
  • According to Fig. 3, the point of intersection between a straight line C containing the body side end of bands 12 and hinge 10 and an arc b is designated a dead centre A. Bands 12 are extended till dead center A against their elastic force so that the cover is elastically turned over to establish the closed state.

Claims (3)

  1. A snap-type cap structure made of synthetic resin, comprising:
       a body (1) having a first circumferential wall (2),
       a cover (5) having a second circumferential wall (7) placed on the first circumferential wall,
       an first hinge (10) for connecting said first and second circumferential walls, and a pair of elastic bands (12) which are provided on both sides of the first hinge (10) for connecting said first and second circumferential walls,
    characterized by
       a pair of recesses (13) each being formed by a lower recess portion on the first circumferential wall and an upper recess portion on the second circumferential wall, which are provided at positions corresponding to said elastic bands,
       wherein ends of the elastic bands (12) are connected through second and third hinges (14, 15) to outer edges of the upper and lower ends of the recesses, and the elastic bands (12) have C-shaped longitudinal sections in a closed state and an open state in which the cover is tunred over, while the elastic bands being fitted into the recesses in the closed state.
  2. A cap structure in accordance with claim 5, wherein the body is adapted to be secured to an open mouth of a container.
  3. A cap structure in accordance with claim 5, wherein the body is a container having the first circumferential wall (2) forming an open mouth.
EP94100652A 1990-07-27 1991-01-16 Cap with resiliently reversing lid Expired - Lifetime EP0608755B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP80392/90U 1990-07-27
JP1990080392U JP2532090Y2 (en) 1990-07-27 1990-07-27 Caps and containers with lids that flip elastically
EP91902752A EP0494306B1 (en) 1990-07-27 1991-01-16 Cap with resiliently reversing lid

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP91902752A Division EP0494306B1 (en) 1990-07-27 1991-01-16 Cap with resiliently reversing lid
EP91902752.4 Division 1991-01-16

Publications (2)

Publication Number Publication Date
EP0608755A1 true EP0608755A1 (en) 1994-08-03
EP0608755B1 EP0608755B1 (en) 1998-05-20

Family

ID=13717019

Family Applications (2)

Application Number Title Priority Date Filing Date
EP94100652A Expired - Lifetime EP0608755B1 (en) 1990-07-27 1991-01-16 Cap with resiliently reversing lid
EP91902752A Expired - Lifetime EP0494306B1 (en) 1990-07-27 1991-01-16 Cap with resiliently reversing lid

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP91902752A Expired - Lifetime EP0494306B1 (en) 1990-07-27 1991-01-16 Cap with resiliently reversing lid

Country Status (6)

Country Link
EP (2) EP0608755B1 (en)
JP (1) JP2532090Y2 (en)
AU (1) AU643497B2 (en)
CA (1) CA2065342C (en)
DE (2) DE69129469T2 (en)
WO (1) WO1992002431A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706951A1 (en) * 1994-10-13 1996-04-17 Owens-Illinois Closure Inc., Closure with snap-type hinge cap
EP0727361A2 (en) * 1995-02-15 1996-08-21 Yoshino Kogyosho Co., Ltd. Snap-hinged cap
CN1084280C (en) * 1997-06-30 2002-05-08 日本电气株式会社 Opening/closing hinge construction for housing

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH683253A5 (en) * 1990-12-13 1994-02-15 Feichtinger Ernst Expan Closure.
EP0555624B1 (en) * 1992-02-10 1995-06-28 "EXPAN" Dipl. Kfm. Ing. Ernst Feichtinger-Chemische Fabrik und Plastikwerk Closure with a snap hinge
US5437383A (en) * 1993-06-11 1995-08-01 Stull; Gene Snap-hinge closure cap with full circumferential seal
AT400432B (en) * 1993-07-14 1995-12-27 Feichtinger Ernst Expan ONE-PIECE HINGE
CA2169699A1 (en) * 1995-12-01 1997-06-02 Osamu Tsukada Cap for medical appliance to be retained in human body
US5875942A (en) * 1996-03-22 1999-03-02 Japan Crown Cork Co., Ltd. Hinged cap separable from bottle at the time of disposal
FR2752818B1 (en) * 1996-08-29 1998-10-16 Oreal ARTICULATED CAPSULE WITH IMPROVED CONNECTION ELEMENT
EP1048582A1 (en) * 1999-04-29 2000-11-02 Createchnic AG Plastic tube provided with a hinged closure and method of making the same
ES2262449B1 (en) 2006-05-18 2007-09-16 Seaplast, S.A. "PLUG WITH FLIP COVER FOR BOTTLES AND SIMILAR EQUIPPED WITH AN AUTOMATIC LID OPENING SYSTEM".
JP5532548B2 (en) * 2008-05-28 2014-06-25 凸版印刷株式会社 Hinge cap
US8844746B2 (en) * 2011-09-14 2014-09-30 Runway Blue, Llc Liquid container closure with integrated over center latching assembly

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334639A (en) * 1979-12-31 1982-06-15 Sunbeam Plastics Corporation Child-resistant dispensing closure
EP0291457A2 (en) * 1987-05-13 1988-11-17 Alfatechnic Ag One-piece hinged snap-on cap
FR2633590A1 (en) * 1988-07-01 1990-01-05 Astra Plastique Spout-stopper made of synthetic material with an articulated cap
GB2224309A (en) * 1988-10-27 1990-05-02 Bxl Plastics Ltd Hinged devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ206374A (en) * 1983-11-23 1986-04-11 Nuon Ind Ltd Closure and cap therefor with u-shaped secondary hinge linkages
US4638916A (en) * 1985-07-12 1987-01-27 Owens-Illinois, Inc. Closure with snap-type hinge cap
JPS6340351U (en) * 1986-09-02 1988-03-16
JPS63110346A (en) * 1986-10-29 1988-05-14 ナショナル住宅産業株式会社 Structure of eaves
JPS63124496A (en) * 1986-11-13 1988-05-27 株式会社日立製作所 Method of fitting multiterminal component
EP0345403A1 (en) * 1988-06-07 1989-12-13 ASTRA PLASTIQUE Société Anonyme Plastic cap comprising a cover articulated by a spring-type hinge

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4334639A (en) * 1979-12-31 1982-06-15 Sunbeam Plastics Corporation Child-resistant dispensing closure
EP0291457A2 (en) * 1987-05-13 1988-11-17 Alfatechnic Ag One-piece hinged snap-on cap
FR2633590A1 (en) * 1988-07-01 1990-01-05 Astra Plastique Spout-stopper made of synthetic material with an articulated cap
GB2224309A (en) * 1988-10-27 1990-05-02 Bxl Plastics Ltd Hinged devices

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0706951A1 (en) * 1994-10-13 1996-04-17 Owens-Illinois Closure Inc., Closure with snap-type hinge cap
AU699311B2 (en) * 1994-10-13 1998-12-03 Rexam Closure Systems Inc. Closure with snap-type hinge cap
EP0727361A2 (en) * 1995-02-15 1996-08-21 Yoshino Kogyosho Co., Ltd. Snap-hinged cap
EP0727361A3 (en) * 1995-02-15 1997-02-12 Yoshino Kogyosho Co Ltd Snap-hinged cap
US5785193A (en) * 1995-02-15 1998-07-28 Yoshino Kogyosho Co., Ltd. Snap-hinged cap
CN1084280C (en) * 1997-06-30 2002-05-08 日本电气株式会社 Opening/closing hinge construction for housing

Also Published As

Publication number Publication date
DE69105110T2 (en) 1995-03-23
CA2065342C (en) 1996-04-30
EP0608755B1 (en) 1998-05-20
DE69105110D1 (en) 1994-12-15
EP0494306A4 (en) 1992-12-23
DE69129469D1 (en) 1998-06-25
AU643497B2 (en) 1993-11-18
EP0494306A1 (en) 1992-07-15
EP0494306B1 (en) 1994-11-09
CA2065342A1 (en) 1992-01-28
JP2532090Y2 (en) 1997-04-09
WO1992002431A1 (en) 1992-02-20
DE69129469T2 (en) 1998-09-17
JPH0438959U (en) 1992-04-02
AU7056791A (en) 1992-03-02

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