Source: http://www.google.com/patents/US5575421?dq=%235,519,867
Timestamp: 2014-07-11 22:51:15
Document Index: 21345663

Matched Legal Cases: ['art 103', 'art 105', 'art 103', 'art 103', 'art 105', 'art 103', 'art 103', 'art 104', 'art 103', 'art 105', 'art 103', 'art 105', 'art 107', 'art 104', 'art 108', 'art 104', 'art 109', 'art 104', 'art 103', 'art 105', 'art 104', 'art 104', 'art 105', 'art 105', 'art 105']

Patent US5575421 - Knob of a corrugated cardboard packing box - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign in<nobr>Advanced Patent Search</nobr>PatentsThis invention relates to a knob of a corrugated cardboard packing box which can prevent a danger of an external appearance of a packing box, has a cutting part 103 being cut, a bending part 105 connecting both edges of the cutting part 103, holes 110 formed between both edges of the cutting part and...http://www.google.com/patents/US5575421?utm_source=gb-gplus-sharePatent US5575421 - Knob of a corrugated cardboard packing boxAdvanced Patent SearchPublication numberUS5575421 APublication typeGrantApplication numberUS 08/585,755Publication dateNov 19, 1996Filing dateJan 16, 1996Priority dateDec 30, 1993Fee statusLapsedAlso published asCA2139303A1, CN1052948C, CN1121886APublication number08585755, 585755, US 5575421 A, US 5575421A, US-A-5575421, US5575421 A, US5575421AInventorsSe-Hwan HeoOriginal AssigneeGoldstar Co., Ltd.Export CitationBiBTeX, EndNote, RefManPatent Citations (10), Referenced by (1), Classifications (5), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetKnob of a corrugated cardboard packing boxUS 5575421 AAbstract This invention relates to a knob of a corrugated cardboard packing box which can prevent a danger of an external appearance of a packing box, has a cutting part 103 being cut, a bending part 105 connecting both edges of the cutting part 103, holes 110 formed between both edges of the cutting part and the bending part, for dispersing a stress applied in both edges of the cutting part 103.
What is claimed is: 1. A knob of corrugated cardboard packing box comprising:a cutting part being cut and having two edges; a bending part connecting both edges of said cutting part; means for dispersing a stress applied in both edges of said cutting part, said means being openings formed between both an edge of the cutting part and the bending part, said bending part comprising: a first bending part, being bent as a knob part, when said bending part is positioned at a low position in comparison with the position of a packing segment inside the packing box; a second bending part being bent as the knob part when said bending part is positioned at a substantially parallel position with the position of the packing segment; and a third bending part being bent as the knob part when said bending part is positioned at a high position in comparison with the position of the packing segment, wherein the packing segment is styrofoam for protecting goods put in the packing box. Description
This is a continuation of application Ser. No. 08/366,653, filed on Dec. 30, 1994 abandoned.
FIELD OF THE INVENTION The present invention relates to a knob of a corrugated cardboard packing box, more particularly to a knob which can prevent damage to the external appearance of the box.
BACKGROUND OF THE INVENTION As shown in FIG. 1 and 2, the conventional corrugated cardboard packing box has a knob 4 in which a portion of a solid line 5 is cut and a portion of a dotted line 3 is bent.
In order to use the knob 4, one pushes the cut solid line of the knob 4 from the exterior of the box to its the interior. Then, the portion of the knob 4 is bent at the dotted line so that a knob hole 2 is formed.
However, when a user uses the knob hole 2 to move an article in it, a stress is concentrated in both edges A, A' of the knob portion so that damage of the box is often generated.
As a result, the dotted line which have to be bent naturally is not bent and a connected line 6 of the rupture portions of both edges is bent. So, the conventional packing box has a problem that the appearance of the box is damaged and not elegant.
SUMMARY OF THE INVENTION Accordingly, the object of the present invention is to provide a knob of a corrugated cardboard packing box to be capable of preventing a damage of an appearance of a packing box.
This object and other objects are achieved by a knob comprising a cutting part being cut, a bending part connecting both edges of the cutting part, holes formed between both edges of the cutting part and the bending part.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing a knob part of a packing box in accordance with the conventional art.
FIG. 2 is a schematic diagram showing a state which the hole of the knob part is formed in accordance with the conventional art.
FIG. 3 is a schematic diagram showing a knob part of a packing box in accordance with the present invention.
FIG. 4 is a schematic diagram showing a state in which the hole of the knob part is formed.
DETAILED DESCRIPTION OF THE INVENTION Referring to an annexed drawings of
FIG. 3 and 4, a knob of a corrugated cardboard packing box in accordance with the present invention is described.
As shown in FIG. 3, the present corrugated cardboard packing box has a knob part 104 comprising a cutting part 103 marked as a solid line and a bending part 105 marked as dotted lines and being bent at the dotted lines connecting both ends of said cutting part 103.
A packing segment 106 is established in the inside of the packing box 101, wherein the packing segment 106 is styrofoam for protecting the goods put in the packing box. The packing segment extends from the top of the packing box in a conventional manner whereby edge 106 is a bottom edge.
The bending part 105 includes a first bending part 107 being bent as the knob part 104 is positioned at the low position in comparison with the position of the packing segment 106 positioned at the inside of the packing box 101, a second bending part 108 being bent as the knob part 104 is positioned at a parallel position with the position of the packing segment 106, a third bending part 109 being bent as the knob part 104 is positioned at the high position in comparison with the position of the packing segment 106 and openings 110 formed between both edges of the cutting part 103 and the bending part 105, for dispersing the stress applied at said both edges.
When a user pushes the knob 104 to the inside of the packing box so as to use the knob 104, the solid line part is cut and the dotted line part is bent so that a knob hole 102 is formed.
Because the bent knob part 104 is pushed and adhered closely to the packing segment 106, a user can easily move goods in it.
When the knob part 104 is bent, in case that the bending part 105 is lower than the position of the packing segment 106, the first bending part is bent, in case that the bending part 105 is parallel with the position of the packing segment 106, the second bending part is bent and in case that the bending part 105 becomes higher than the position of the packing segment 106, the third bending part is bent.
Accordingly, the knob of the present invention can prevent a bending at non-desired position.
In addition, the knob of the present invention can prevent a rupture occurring in both edges of the cutting part because the applied stress is dispersed due to the openings.
As described hereinbefore, the present invention maintains a elegant appearance and durability of the packing box.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleUS2710135 *Jul 19, 1950Jun 7, 1955Gaylord Container CorpContainer end wall handhole reinforcementUS3696990 *Nov 5, 1970Oct 10, 1972Somerville Ind LtdPaperboard containerUS4157755 *Dec 16, 1977Jun 12, 1979Labatt Breweries Of Canada LimitedTop loading compartmented beverage cartonUS4405078 *Jan 30, 1980Sep 20, 1983Champion International CorporationArticle carrier and a blank for forming the sameUS4718597 *Sep 24, 1986Jan 12, 1988Domtar Inc.Blank and a box therefrom having extended lifeCA65068A *Oct 24, 1899Nov 23, 1899William T HamiltonCut-off air brakesCA481675A *Mar 11, 1952Inland Container CorpPaper board box cover lockCA2045825A1 *Jun 27, 1991Dec 28, 1992Molson BreweriesEnd-load cartonCA2047520A1 *Jul 19, 1991Jan 20, 1993Richard Edwin BishopBox with reinforced hand holeDE4125777A1 *Aug 3, 1991Feb 4, 1993Henkel KgaaVerpackung mit griffmulde* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS6257484 *Oct 18, 1999Jul 10, 2001Technology Container CorporationCollapsible corrugated plastic box having tear-resistant hand holds* Cited by examinerClassifications U.S. Classification229/117.16, 229/199International ClassificationB65D5/468Cooperative ClassificationB65D5/4608European ClassificationB65D5/46B1Legal EventsDateCodeEventDescriptionJan 18, 2005FPExpired due to failure to pay maintenance feeEffective date: 20041119Nov 19, 2004LAPSLapse for failure to pay maintenance feesJun 9, 2004REMIMaintenance fee reminder mailedMay 8, 2000FPAYFee paymentYear of fee payment: 4RotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google