EP1991084A2 - Abgabebehälter - Google Patents
AbgabebehälterInfo
- Publication number
- EP1991084A2 EP1991084A2 EP07734483A EP07734483A EP1991084A2 EP 1991084 A2 EP1991084 A2 EP 1991084A2 EP 07734483 A EP07734483 A EP 07734483A EP 07734483 A EP07734483 A EP 07734483A EP 1991084 A2 EP1991084 A2 EP 1991084A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- receptacle
- cover
- container
- container according
- dimensions
- 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.)
- Withdrawn
Links
Classifications
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- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- A45D34/04—Appliances specially adapted for applying liquid, e.g. using roller or ball
- A45D34/041—Appliances specially adapted for applying liquid, e.g. using roller or ball using a roller, a disc or a ball
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C49/06—Injection blow-moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/66—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined
- B29C65/665—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by liberation of internal stresses, e.g. shrinking of one of the parts to be joined using shrinking during cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/114—Single butt joints
- B29C66/1142—Single butt to butt joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5344—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially annular, i.e. of finite length, e.g. joining flanges to tube ends
-
- 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
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0223—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by shape
-
- 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
- B65D23/00—Details of bottles or jars not otherwise provided for
- B65D23/08—Coverings or external coatings
- B65D23/0885—Rigid shells for receiving the bottle or part of it
-
- 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
- B65D25/00—Details of other kinds or types of rigid or semi-rigid containers
- B65D25/34—Coverings or external coatings
-
- A—HUMAN NECESSITIES
- A45—HAND OR TRAVELLING ARTICLES
- A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A45D34/00—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes
- A45D2034/007—Containers or accessories specially adapted for handling liquid toiletry or cosmetic substances, e.g. perfumes with special decorative arrangements or form
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
- B29C2049/023—Combined blow-moulding and manufacture of the preform or the parison using inherent heat of the preform, i.e. 1 step blow moulding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0053—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor combined with a final operation, e.g. shaping
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/42—Component parts, details or accessories; Auxiliary operations
- B29C49/4273—Auxiliary operations after the blow-moulding operation not otherwise provided for
- B29C49/428—Joining
- B29C49/42802—Joining a closure or a sealing foil to the article or pincing the opening
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/737—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
- B29C66/7371—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable
- B29C66/73715—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined oriented or heat-shrinkable heat-shrinkable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
Definitions
- This invention is concerned with improvements in or relating to containers and is particularly, although not exclusively, concerned with containers intended for use as dispensers of liquid toiletries such as deodorant compositions. Though hereinafter described by reference to deodorant dispensers, it is to be clearly understood that the present invention can be used for other purposes, as for example the dispensing of liquid form adhesive compositions.
- Deodorant dispensers are available in different forms, the two most common of which are known generally as the 'spray-on' and the 'roller- ball' or 'roll-on' dispensers.
- the invention is described with reference to the roll-on type of deodorant dispenser, it is also to be clearly understood that the invention is equally applicable to other types of dispenser which have provision for storing liquid deodorant, such as spray-on dispensers.
- deodorant dispensers of the roll-on type comprise a receptacle which is made from glass or from a suitable rigid, semi-rigid or partially flexible plastics material, the receptacle having a neck portion which is designed to hold a roller ball in a manner such that as the ball is rotated when brought into contact with the skin, deodorant liquid is dispensed on the surface of the ball.
- the neck portion is formed to restrain the ball in position so that it does not become detached from the neck portion, while still permitting liquid deodorant to disperse over the surface of the ball for application to the skin.
- some roll-on containers have the receptacle for the deodorant liquid formed from glass and are referred to as bottles as a result.
- the wall thickness of the glass can be quite inhomogeneous and thick as a result; typically the thickness is about 3 to 5mm in order for the bottle to withstand normal usage.
- thermoplastic materials rather than glass in many cases. In doing so it may be preferable to have a container with the same or similar internal and external dimensions. To produce a container from a thermoplastics material as a single body with the same dimensions as a glass bottle would be impractical because containers with the same wall thickness would be very expensive and involve very long cooling times.
- a container comprising an inner receptacle having required internal contours and/or dimensions and an outer cover formed over at least part of the receptacle whereby to achieve required external contours and/or dimension.
- the outer jacket may have internal contours and dimensions at least substantially matching external contours and dimensions of the inner receptacle.
- the container comprises two parts, the inner one of which can be formed with wall thicknesses, for example in the range of lmm to 2.5mm and preferably 1.2mm, which are considerably less than the 3.5 mm thickness required of the equivalent glass container, while the thickness of the outer cover can be of similar thickness, for example in the range of lmm to 2.5mm and preferably 1.2mm, to provide equivalent strength and resilience to that of the glass container.
- the receptacle can provide the internal dimensions without needing a thick wall because the external dimensions are provided by the jacket.
- the receptacle and its outer cover by suitably shaping both the receptacle and its outer cover, it is possible to emulate the appearance and size of the equivalent glass container and to ensure that it has not only the same outside dimensions but also the same or a similar filling volume, thereby removing the need to modify other steps or stages in the production line.
- a container as is provided by the present invention gains from the fact that, as is well known, it is possible to detail the external appearance of a container moulded from a plastics material more exactly than when glass is used.
- the body portion may be formed with a recess which has practical as well as aesthetic use. The recess, while imparting uniqueness of appearance to the finished container, also provides a handgrip for the user of the container.
- One form of such a recess is formed by the intersection of: (i) an arc shaped segment of the body portion which curves from diametrically opposite sides of the body adjacent a base region thereof at an incline to an axis of the body; and of (ii) a curved conic section which extends away from the base region and inwardly of a main surface of the body portion.
- the body portion of a container according to the present invention may also include a neck portion adapted to receive a cap member which may be screw threaded or arranged to form snap fitting engagement with the neck portion.
- the neck portion may be arranged to receive a roller ball for movement to dispense fluid contents of the receptacle, which may be of generally cylindrical shape or any other desired shape.
- the neck portion may be provided by the receptacle and/or the cover.
- the container By forming the container in two parts, namely the receptacle and the outer cover it is possible not only to provide the required physical properties to the container, such as resilience and rigidity, but also to design the outer cover so that it covers only predetermined parts of the receptacle by providing 'cut-out' portions through which the receptacle is exposed. In this way, it is possible to impart a two-colour appearance to the container. Exposure of the, inner, receptacle does of course result in thinner wall thickness in those regions but this can be compensated by appropriate contouring of the receptacle.
- PET Polyethylene terephthalate
- the outer cover is preferably also formed of a thermoplastics material such as a suitable polypropylene.
- a suitable polypropylene are especially suitable because they have physical characteristics, which allow them to be shrink-fitted onto the receptacle.
- the cover can be formed of a single colour plastics material or may be formed from multicolour material. Shrink fitting of the cover onto the receptacle could be achieved by employing either a heat shrinkable plastics material or a plastics material, which shrinks on cooling. From a production viewpoint, it is preferred to use the latter.
- the container may comprise a thin- walled PET receptacle and a thin- walled injection moulded jacket.
- the cover can be formed with a closed base portion or may be open at each end. Where the cover is formed with a closed base portion, assembly of the cover onto the receptacle can, in the course of production, be either by locating the cover onto the receptacle or vice versa. Where the cover is open at each end, it can be fitted onto the receptacle by sliding it over the receptacle either from the top of the receptacle or the bottom and is preferably in a heated expanded state so that, when located on the receptacle, it can shrink as it cools.
- the present invention also provides, in another aspect, a method of forming a container comprising an inner receptacle having required internal contours and/or dimensions and an outer cover formed over at least part of the receptacle whereby to achieve required external contours and/or dimensions, the method comprising the steps of:
- the receptacle is moulded by an injection blow moulding process in which a small part with a large wall thickness (a so-called preform) is first produced by injection moulding.
- the preform is heated and then transferred to the blow-moulding machine where it is blown into final shape.
- injection blow moulding gives better definition of details (e.g. screw threads), and a better control of the distribution of the thickness of the material.
- Final assembly is carried out by assembling the heated covers, directly after the injection moulding process, with the "cold" receptacles. Shrinkage of the covers after cooling down to room temperature can be used to give a tight fit.
- an injection moulded cover is assembled onto a cold receptacle when it is still warm just after it is ejected from the mould at step b).
- the cover is placed on the receptacle and allowed to cool it shrinks onto the outer surface to form an outer skin. If the receptacle and/or cover are provided with co-operating features, such as projections, this could be used to enhance the association of the parts further.
- preferred materials for manufacture of a container according to the present invention are thermoplastics materials, which are recyclable, for example PET for the receptacle and a polypropylene for the cover.
- Figure 1 is a side view of a receptacle of a container according to a preferred embodiment of the present invention
- Figure 2 is a side view of the receptacle shown in Figure 1 ;
- Figure 3 is a front view of an outer cover for the receptacle shown in Figures 1 and 2;
- Figure 4 is a side view of the cover shown in Figure 3;
- Figure 5 is a perspective view of a container according to the present invention assembled from the receptacle of Figures 1 and 2 and the outer cover of Figures 3 and 4;
- Figure 6 is a perspective cut away view of the container shown in Figure 5.
- FIGS 1 to 4 they illustrate a container 1 which comprises a receptacle 10, that is intended for containing a liquid deodorant and is designed to be held in the hand, and a jacket, sleeve or cover 11.
- the receptacle is generally indicated at 10 and comprises a central body portion 12 integrally formed with a base portion 14 and a neck portion 15, the body portion being in the form of a recessed cylinder having a central axis A.
- the base portion is inset at 16 so that the receptacle sits on a peripheral rim 18 thereby imparting greater stability to the container when assembled as described below.
- the base portion 14 is of substantially uniform internal and external diameters providing a wall thickness of the order of 1.2 mm.
- the central body portion 12 has a unique shape. Extending upwardly from the base portion a recess 20 is formed in the otherwise cylindrical body portion.
- the recess 20 commences approximately one sixth up the height of the receptacle measured from its base line B.
- the recess is defined at its lowermost edge along a substantially semicircular line 22 which lies in a plane normal to the axis A of the body portion of the receptacle.
- a curved wall portion 24 of the body portion 12 of generally curved conic section tapers upwardly and inwardly so that it has a constantly reducing curvature as shown especially in Figures 2 to 4.
- an inwardly curved arc-shaped segment is provided by an arcuate surface 26 which is defined between two parabolas D and E, an upper and outer one D of which defines the outer limit of the curved surface and of the recess 20, and the inner one E of which is formed by the intersection 25 of the curved surface 26 with the wall portion 24.
- the intersection 25 itself is formed as an arcuate concave surface, which curves between the parabola E and the parabolically shaped edge F of the wall portion 24.
- the surface 26 is inwardly curved in the sense that it curves into the body portion 12.
- Both of the parabolas D and E and the parabolically shaped edge of the wall portion 24 terminate at the extremities of the line 22.
- the recess 20 provides means whereby the container, when assembled, can be gripped securely in the hand.
- the body portion 12 of the receptacle 10 terminates at its upper extremity at a shoulder 28 where the integrally formed neck portion 15 is formed.
- the neck portion 15 provides a screw thread 30 for accommodating an internally threaded cap member (shown in dotted outline in Figure 1 only).
- the thread 30 is ideally designed so that its shape allows a cap member to be screwed onto the receptacle in a substantially airtight manner so that the contents of the receptacle are prevented from evaporating.
- the receptacle is preferably formed, as previously described, by an injection blow moulding process.
- the outer cover 11 which is designed to fit tightly onto the receptacle 10, is formed by an injection moulding process and is formed of a material such as a thermoplastics material, for example polypropylene, that will allow for sufficient shrinkage as it cools to permit the cover to clamp to the body portion and the base portion of the receptacle.
- a thermoplastics material for example polypropylene
- the outer cover 11 is shown in detail in Figures 3 and 4 and comprises an outer base portion 34 which is cylindrical and is of a height which is substantially the same as the height of the base portion 14 of the receptacle 20.
- the outer cover also has a body portion 35 which is integral with the base portion.
- the base portion of the outer cover forms an apron 36 which, when the outer cover is assembled on the receptacle overlies the base portion 14 of the receptacle, around the front of the receptacle.
- the body portion is cut away, as shown at 38 to provide an opening 40 which corresponds in shape to the perimeter of the recess 20 as defined by the curved parabola D and the baseline 22.
- the outer cover resumes the shape of a cylinder, defining an annular upper portion 42 so that the opening 40 is defined between the base portion 34 and the annular portion 42.
- the axial length of the outer cover is substantially the same as that of the body portion of the receptacle 10.
- Edges of the outer cover 11 are preferably rounded and may be contoured so that, when the outer cover is positioned on the receptacle, there are no apparent sharp edges and the surfaces of the receptacle and of the outer cover are apparently continuous.
- the illustrated embodiment also has an inset portion 44 which has contours such that its internal contours and dimensions match those of the external contours and dimensions of the inset portion of the receptacle when the two are finally assembled.
- the outer cover is formed by injection moulding and is formed from a material such as polypropylene to have internal dimensions and contours such that, when it is removed from the mould in which it is formed, it conforms to the external contours and dimensions of the inner receptacle, when the two are assembled together. Allowance for mould shrinkage must be made when designing a mould for a part that requires close dimensional tolerances. Mould shrinkage of thermoplastic materials is very complex because it is affected by many factors and for polypropylene, a major factor is cooling rate. Generally, higher shrinkage results from slower cooling rates, and thicker parts shrink more than thinner parts. It takes longer to remove heat from thicker parts and consequently, in manufacturing the outer cover, the thickness of the outer cover is maintained uniform throughout the outer cover. Other factors affecting part shrinkage are melt temperature (which affects cooling rate), packing of the part, and the addition of fillers to the thermoplastics material, i.e. polypropylene, such as colouring agents and fillers where used.
- Mould shrinkage for polypropylene can vary from about 0.010 mm/mm (0.010 in./in.) to about 0.030 mm/mm (0.030 in./in.), depending on part thickness, formulation, and processing conditions and the desired final contouring and dimensions of the outer cover must therefore be closely controlled so that it can be assembled onto the receptacle.
- the mould for the outer cover is therefore correctly oversized to permit the cover to shrink as it cools, ideally to room temperature, when it has been assembled with the receptacle.
- the outer cover may be formed as single unit in an appropriate mould. However, it is also possible that the cover can be formed in two parts by injection moulding, with the two parts subsequently being bonded together either before they are assembled on the receptacle or during the process of assembling of the receptacle with the outer cover.
- Assembly of the cover when formed prior to assembly with the receptacle, is achieved by placing the receptacle inside the cover, and thereafter controllably cooling the container so formed to permit the cover to shrink onto the receptacle.
- the cover and the receptacle are of course aligned so that the opening in the cover exactly matches the profile of the recess in the receptacle.
- the cover 11 may be formed without its inset portion 44 so that the general profile of the cover is essentially cylindrical.
- the container 1 may be assembled by inserting the receptacle into either end of the cover.
- the cover may then be provided with inwardly directed lip portions (not shown) at one or both ends to ensure that the cover registers correctly with the receptacle.
- Such lip portions may be continuous annular lip portions or may be formed to reside in recesses formed in the ends of the body portion of the receptacle.
- a container according to the present invention is constructed of two parts, it is possible to form each individual part in a different coloured plastics material from the other, while each part can itself be formed of a plastics material which is itself multicoloured. Consequently, the present invention makes provision for a range of products, such as deodorants, to be displayed with the same packaging but using different colour combinations.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Details Of Rigid Or Semi-Rigid Containers (AREA)
- Devices For Use In Laboratory Experiments (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB0603978.8A GB0603978D0 (en) | 2006-02-25 | 2006-02-25 | Dispensing containers |
PCT/IB2007/001167 WO2007096776A2 (en) | 2006-02-25 | 2007-02-14 | Dispensing containers |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1991084A2 true EP1991084A2 (de) | 2008-11-19 |
Family
ID=36178922
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP07734483A Withdrawn EP1991084A2 (de) | 2006-02-25 | 2007-02-14 | Abgabebehälter |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP1991084A2 (de) |
BR (1) | BRPI0707808A2 (de) |
GB (1) | GB0603978D0 (de) |
MX (1) | MX2008010872A (de) |
WO (1) | WO2007096776A2 (de) |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3156279A (en) * | 1960-08-29 | 1964-11-10 | Rexall Drug Chemical | Double-wall jar |
US4429798A (en) * | 1982-06-11 | 1984-02-07 | Borows Allan A | Protected glass jar with closure |
JPH074849B2 (ja) * | 1987-01-20 | 1995-01-25 | 株式会社吉野工業所 | 積層容器製造方法 |
BR8002322U (pt) * | 2000-10-16 | 2002-05-28 | Filtrona Brasileira Ind E Com | Recipiente armazenador e aplicador de desodorante lìquido |
US6712539B2 (en) * | 2002-07-29 | 2004-03-30 | Gerber Products Company | Roll-on body powder dispenser |
FR2857292B1 (fr) * | 2003-07-11 | 2007-04-20 | Oreal | Recipient comportant une piece de revetement et son procede de fabrication |
-
2006
- 2006-02-25 GB GBGB0603978.8A patent/GB0603978D0/en not_active Ceased
-
2007
- 2007-02-14 WO PCT/IB2007/001167 patent/WO2007096776A2/en active Application Filing
- 2007-02-14 MX MX2008010872A patent/MX2008010872A/es not_active Application Discontinuation
- 2007-02-14 EP EP07734483A patent/EP1991084A2/de not_active Withdrawn
- 2007-02-14 BR BRPI0707808-0A patent/BRPI0707808A2/pt not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO2007096776A2 * |
Also Published As
Publication number | Publication date |
---|---|
GB0603978D0 (en) | 2006-04-05 |
BRPI0707808A2 (pt) | 2011-05-10 |
MX2008010872A (es) | 2008-09-04 |
WO2007096776A3 (en) | 2008-04-10 |
WO2007096776A2 (en) | 2007-08-30 |
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