GB2052427A - Moulded pulp corner piece - Google Patents

Moulded pulp corner piece Download PDF

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Publication number
GB2052427A
GB2052427A GB7922344A GB7922344A GB2052427A GB 2052427 A GB2052427 A GB 2052427A GB 7922344 A GB7922344 A GB 7922344A GB 7922344 A GB7922344 A GB 7922344A GB 2052427 A GB2052427 A GB 2052427A
Authority
GB
United Kingdom
Prior art keywords
corner piece
moulding
open side
corner
ribs
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
GB7922344A
Other versions
GB2052427B (en
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.)
UNIVERSAL PULP CONTAINERS Ltd
Original Assignee
UNIVERSAL PULP CONTAINERS 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 UNIVERSAL PULP CONTAINERS Ltd filed Critical UNIVERSAL PULP CONTAINERS Ltd
Priority to GB7922344A priority Critical patent/GB2052427B/en
Publication of GB2052427A publication Critical patent/GB2052427A/en
Application granted granted Critical
Publication of GB2052427B publication Critical patent/GB2052427B/en
Expired 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D81/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D81/053—Corner, edge or end protectors
    • B65D81/057—Protectors contacting four surfaces of the packaged article, e.g. four-sided corner protectors
    • 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
    • B65D2581/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D2581/02—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage
    • B65D2581/05—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents specially adapted to protect contents from mechanical damage maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/051—Details of packaging elements for maintaining contents at spaced relation from package walls, or from other contents
    • B65D2581/052—Materials
    • B65D2581/053—Paper in general, e.g. paperboard, carton, molded paper

Abstract

A corner piece for protecting the corners of table tops or doors comprises a unitary moulding of paper pulp having two triangular surfaces 10, closed sides 12, 14 and open side 15. The corner piece has ribs 16 to improve strength and damage resistance, and is inwardly bowed at the middle of the open side 15 to grip the article to which it is applied. <IMAGE>

Description

SPECIFICATION Moulded pulp corner piece This invention relates to protecting the corners of table tops, constructional boards, doors and the like against damage in transit.
It is known to provide such protection by wrapping each corner with a material such as corrugated cardboard which is then taped or tied in position. This requires a considerable amount of time in cutting and positioning the material, and the degree of protection given is dependent on the skill of the operative.
It is also known to protect such corners by hollow corner pieces of expanded polystyrene (EPS). These can be moulded to a given size to suit a given article, and can thus be applied relatively quickly. However, they do not have a gripping action and must therefore be held in place by some other means. A further disadvantage of EPS corner pieces arises from the fact that it is desirable to shrink wrap certain articles.
The heat of the shrink wrapping process causes EPS to soften and distort, with loss of its protective qualities.
It is therefore an object of the present invention to provide an improved corner piece.
The invention accordingly provides a corner piece for protecting table tops, constructional boards, doors and the like, comprising a one-piece moulding of moulded paper pulp, the moulding in plan view being triangular and in elevation having one open side and two closed sides.
Preferably, the top and bottom of the moulding are slightly concave so that the open side is narrower at its centre than at its edges, whereby the corner piece grips an article to which it is applied.
Preferably also, the surfaces of the corner piece are formed with raised hollow ribs to give improved compressive strength and resistance to impact.
An embodiment of the invention will now be described, by way only of example, referring to the accompanying drawing, in which: Figure 1 is a plan view of a corner piece embodying the invention; Figure 2 is a side elevation taken in the direction of the arrow B; Figure 3 is a cross-section on the line A-A of Figure 2; and Figure 4 is a partial cross-section on the line C-C of Figure 1.
Referring to the drawings, the corner piece is an integral moulding having a top surface 10 (and corresponding bottom surface), closed sides 12 and 14, and an open side 15. The moulding is of paper pulp, with a wall thickness of 3h;' (2.4 mm). The top surface 10 and the bottom surface are formed with ribs 16 and alternating depressions 18, while the sides 12, 14 are formed with joining ribs 20 and depressions 22. The ribs 16 extend towards the apex of the closed sides 12, 14 and are tapered to permit demoulding.
As seen in Figure 4, the open side 15 is inwardly bowed so that, when the corner piece is pushed onto a board of suitable thickness, the centre of the open side will be expanded to give a gripping action.
The corner piece is preferably moulded from a slurry of recycled newsprint, glue size (suitably "101" glue size) and sulphate of alumina in water.
Moulding is preformed by a known process in which a layer of slurry is drawn onto a female gauze mould by vacuum, a male mould is inserted and subjected to vacuum while pressurised air is applied to the female mould, the female mould is removed, and finally the partly de-watered moulding is dropped onto a conveyor to travel through a drying tunnel.
The corner piece of the invention is cheap and simple to produce, while giving good compressive strength even when heated for shrink wrapping. The corner pieces also assist in locating articles to which they have been applied when the articles are stacked.
1. A protective corner piece comprising a onepiece moulding of moulded paper pulp, the moulding in plan view being triangular and in elevation having one open side and two closed sides.
2. A corner piece according to claim 1, in which the top and bottom of the moulding are concave so that the open side is narrower at its centre than at its edges.
3. A corner piece according to claim 1 or claim 2, in which the surfaces are formed with raised hollow ribs.
4. A corner piece according to claim 3, in which the ribs on the top and bottom of the moulding run substantially at right angles to the open side.
5. A moulded pulp corner piece substantially as herein described with reference to and as shown in the accompanying drawings.
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (5)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Moulded pulp corner piece This invention relates to protecting the corners of table tops, constructional boards, doors and the like against damage in transit. It is known to provide such protection by wrapping each corner with a material such as corrugated cardboard which is then taped or tied in position. This requires a considerable amount of time in cutting and positioning the material, and the degree of protection given is dependent on the skill of the operative. It is also known to protect such corners by hollow corner pieces of expanded polystyrene (EPS). These can be moulded to a given size to suit a given article, and can thus be applied relatively quickly. However, they do not have a gripping action and must therefore be held in place by some other means. A further disadvantage of EPS corner pieces arises from the fact that it is desirable to shrink wrap certain articles. The heat of the shrink wrapping process causes EPS to soften and distort, with loss of its protective qualities. It is therefore an object of the present invention to provide an improved corner piece. The invention accordingly provides a corner piece for protecting table tops, constructional boards, doors and the like, comprising a one-piece moulding of moulded paper pulp, the moulding in plan view being triangular and in elevation having one open side and two closed sides. Preferably, the top and bottom of the moulding are slightly concave so that the open side is narrower at its centre than at its edges, whereby the corner piece grips an article to which it is applied. Preferably also, the surfaces of the corner piece are formed with raised hollow ribs to give improved compressive strength and resistance to impact. An embodiment of the invention will now be described, by way only of example, referring to the accompanying drawing, in which: Figure 1 is a plan view of a corner piece embodying the invention; Figure 2 is a side elevation taken in the direction of the arrow B; Figure 3 is a cross-section on the line A-A of Figure 2; and Figure 4 is a partial cross-section on the line C-C of Figure 1. Referring to the drawings, the corner piece is an integral moulding having a top surface 10 (and corresponding bottom surface), closed sides 12 and 14, and an open side 15. The moulding is of paper pulp, with a wall thickness of 3h;' (2.4 mm). The top surface 10 and the bottom surface are formed with ribs 16 and alternating depressions 18, while the sides 12, 14 are formed with joining ribs 20 and depressions 22. The ribs 16 extend towards the apex of the closed sides 12, 14 and are tapered to permit demoulding. As seen in Figure 4, the open side 15 is inwardly bowed so that, when the corner piece is pushed onto a board of suitable thickness, the centre of the open side will be expanded to give a gripping action. The corner piece is preferably moulded from a slurry of recycled newsprint, glue size (suitably "101" glue size) and sulphate of alumina in water. Moulding is preformed by a known process in which a layer of slurry is drawn onto a female gauze mould by vacuum, a male mould is inserted and subjected to vacuum while pressurised air is applied to the female mould, the female mould is removed, and finally the partly de-watered moulding is dropped onto a conveyor to travel through a drying tunnel. The corner piece of the invention is cheap and simple to produce, while giving good compressive strength even when heated for shrink wrapping. The corner pieces also assist in locating articles to which they have been applied when the articles are stacked. CLAIMS
1. A protective corner piece comprising a onepiece moulding of moulded paper pulp, the moulding in plan view being triangular and in elevation having one open side and two closed sides.
2. A corner piece according to claim 1, in which the top and bottom of the moulding are concave so that the open side is narrower at its centre than at its edges.
3. A corner piece according to claim 1 or claim 2, in which the surfaces are formed with raised hollow ribs.
4. A corner piece according to claim 3, in which the ribs on the top and bottom of the moulding run substantially at right angles to the open side.
5. A moulded pulp corner piece substantially as herein described with reference to and as shown in the accompanying drawings.
GB7922344A 1979-06-27 1979-06-27 Moulded pulp corner piece Expired GB2052427B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7922344A GB2052427B (en) 1979-06-27 1979-06-27 Moulded pulp corner piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB7922344A GB2052427B (en) 1979-06-27 1979-06-27 Moulded pulp corner piece

Publications (2)

Publication Number Publication Date
GB2052427A true GB2052427A (en) 1981-01-28
GB2052427B GB2052427B (en) 1983-04-07

Family

ID=10506127

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7922344A Expired GB2052427B (en) 1979-06-27 1979-06-27 Moulded pulp corner piece

Country Status (1)

Country Link
GB (1) GB2052427B (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668458A1 (en) * 1990-10-25 1992-04-30 Clouet Alain Universal protective corner for flat angular convex objects
WO1994010058A1 (en) * 1992-10-30 1994-05-11 Brødrene Hartmann A/S Integrally moulded edge or corner protector
WO1995008485A1 (en) * 1993-09-24 1995-03-30 Brødrene Hartmann A/S Integrally moulded double corner protector
EP0654001A1 (en) 1992-08-06 1995-05-24 Moulded Fibre Technology, Inc. Molded pulp fiber interior package cushioning structures
GB2316935A (en) * 1995-12-27 1998-03-11 Yang Chun Tse Pulp mould packaging element and moulding means
GB2353029A (en) * 1996-09-06 2001-02-14 Yang Chun Tse A packaging element and moulding means for manufacturing the same
FR3068725A1 (en) * 2017-07-05 2019-01-11 Jh Industries DOOR VANTAIL WITH ANTI-MOISTURE PROTECTION

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2668458A1 (en) * 1990-10-25 1992-04-30 Clouet Alain Universal protective corner for flat angular convex objects
EP0654001A1 (en) 1992-08-06 1995-05-24 Moulded Fibre Technology, Inc. Molded pulp fiber interior package cushioning structures
US5816409A (en) * 1992-08-06 1998-10-06 Moulded Fibre Technology, Inc. Molded pulp fiber interior package cushioning structures
WO1994010058A1 (en) * 1992-10-30 1994-05-11 Brødrene Hartmann A/S Integrally moulded edge or corner protector
WO1995008485A1 (en) * 1993-09-24 1995-03-30 Brødrene Hartmann A/S Integrally moulded double corner protector
GB2316935A (en) * 1995-12-27 1998-03-11 Yang Chun Tse Pulp mould packaging element and moulding means
GB2316935B (en) * 1995-12-27 2001-04-04 Yang Chun Tse A packaging element
DE19638096C2 (en) * 1995-12-27 2003-05-08 Chun-Tse Yang Pulp-molded body
GB2353029A (en) * 1996-09-06 2001-02-14 Yang Chun Tse A packaging element and moulding means for manufacturing the same
GB2353029B (en) * 1996-09-06 2001-04-04 Yang Chun Tse A packaging element and moulding means for manufacturing the same
FR3068725A1 (en) * 2017-07-05 2019-01-11 Jh Industries DOOR VANTAIL WITH ANTI-MOISTURE PROTECTION

Also Published As

Publication number Publication date
GB2052427B (en) 1983-04-07

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PCNP Patent ceased through non-payment of renewal fee