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Publication numberUS2307028 A
Publication typeGrant
Publication dateJan 5, 1943
Filing dateSep 9, 1939
Priority dateSep 9, 1939
Publication numberUS 2307028 A, US 2307028A, US-A-2307028, US2307028 A, US2307028A
InventorsDahlgren Charles H
Original AssigneeAmerican Can Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 2307028 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

jan. 55,1943. Q H, DAHLGREN 2939?@23 CONTAINER l f;

Filed Sept. 9, 1939 y INVENTO i of Patente-d Jan. 5, 1943 CONTAINER Charles H. Dahlgren, West New York, N. J., as-

signor to American Can Company, New York, N. Y., a corporation of New Jersey Application September 9, 1939, Serial No. 294,193

(Cl. 22o-31) 3 Claims.

' The present invention relates to containers such as hinge cover tablet boxes or the like and has particular reference to a pintleless hinge having a locking feature which is adapted to retain the cover in predetermined positions on the box.

An object of the invention is the provision of a hinge cover tablet box or the like wherein the cover is permanently' secured to the box by a plntleless hinge which is designed to lock theV cover against accidental opening when it is in closed position and is also designed to retain the cover in unlocked position when it is released and partially open.

Another object is the provision of such a tablet ling the box cover in closed position i Figs. 2 and 3 are enlarged sectional views taken substantially along a plane indicated by the lines 2-2 in Fig. l, the views showing the cover of the box in different positions;

Figs. 4 and 5 are fragmentary sectional details taken substantially along the lines 4 4, 5-5 in Fig. 2; and

Fig. 6 is a fragmentary sectional view similar to Fig. 3 showing the cover in fully open p osition.

As a preferred embodiment of the invention the drawing illustrates a rectangular shaped sheet metal tablet box which includes a body member II and a cover member I2. These members are preferably of shallow onepiece die drawn construction.

The body member I| comprises a flat bottom wall section I4 (Fig. 2) which is surrounded by a continuous upright wall I5. The upright wall includes a front wall section I6, a rear wall'section Il, and a pair of connecting side Wall sections I. The side wall sections I8 are cut away adjacent the rear wall section Il as indicated by the numeral I9, and the rear wall is made correspondingly lower so that free hinging action of mbodying the instant invention, the view showthe cover may be had as will be explained hereoutside of the corresponding upright vwall sections of the body.

The cover I2 is adapted to be rocked on the body II by pressure applied to it along the rear edges of the box to initially open it. For this purpose the cover is formed with a pair of fulcrum lugs 28 (Figs. 1, 2 and 4) which are located in the cover top wall section 2| adjacent to and extending into the cover side wall sections 25. The lugs are preferably pressed inwardly from these two wall sections 2|, 25 and rest on the top terminal edges of the body side wall sections I8 when the cover is in a closed or partially opened position as shown in Figs. 2 and 3.

When the cover is in closed position it is held against accidental opening along its front wall section 23 and along its side wall sections 25 adjacent its rear wall section 24. At the front of the box this is effected by a pair of interlocking nodes, lugs, protuberances or projections 3|,

32 which are formed in the respective wall sections I6, 23 of the body and cover members.

At the rear of the box the locking is effected in hinge elements which include a pair of inwardly extending nodes or projections 35 (Figs. 1 and 5) which are formed in the cover side wall sections 25. There is one of these hinge nodes on each side of the cover and it extends into and operates in an elongated or oblong recess 3B formed in each side wall section I8 ofthe body. The bottom of each recess is formed with a pair of spaced, upper and lower, inwardlyI extending. round depressions 31, 38 having a locking ridge 39 betweenthem. It is in these depressions that the locking nodes 35 engage.

When the cover is in closed position `the hinge nodes 35 are seated in the upper locking depressions 3'I. The ridges 39 retain the corresponding nodes in the upper depressions and thus cooperate with the front locking nodes 3|, 32 in locking the cover against accidental opening.

When it is desired to open the cover, a slight pressure applied to the rear edge of the box, as by pinching the cover and body rear edges together, rocks the cover on its fulcrum lugs 28. This rocking action raises the cover along its front edge and disengages the locking lugs 3|, 32 thereby releasing the cover and allowing it to snap into an initially opened position as shown in Fig. 3.

This same rocking action depresses the rear edge of the cover and forces each hinge node 35 out of the corresponding upper hinge locking depression 31. During such shifting action, the nodes ride over the locking ridges 39 as they snap into the lower hinge depressions 38 after which they are locked by the ridges 39. 'Ihese lower depressions thereupon become hinge elements as the cover is raised by hand from its initially opened position into a full open position, f

as shown in Fig. 6. This latter position gives full access to the interior of the box.

Upon closing the cover again, the hinge nodes 35 remain in the lower hinge depressions 38 until the cover is brought down into the position shown in Fig. 3. In such position the fulcrum lugs 28 again come into engagement with the top edge of the body side walls I8and thereupon begin to function as fulcrum points. Continuous closing of the cover now rocks it on these fulcrum points and the hinge nodes 35 are forced back into the upper hinge locking depressions 31. At the same time the front locking nodes 3|, 32 are reengaged as shown in Fig. 2 and the cover is thus securely locked against accidental opening.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing description, and it will be apparent that various changes mair be made in the form, construction and arrangement of the parts Without departing frcm the spirit and scope of the invention or sacricing all of its material advantages, the form hereinbefore described being merely a preferred embodiment thereof.-

I claim:

1. A hinge cover tablet box and the like, comprising a body member, a cover member, and a pair of hinge elements including a hinge node in each of two opposite walls of one of said members and a guide recess in each of two corresponding Walls of the other of said members, each of said recesses having a pair of spaced locking hinge depressions in which 'said nodes operate and in which said nodes may be shifted from one to the other, one of each pair of said depressions retaining said cover in locked position on the body, and the other of each pair of depressions serving as hinge elements on which the cover is opened when the hinge nodes are shifted from one set of depressions to the other.

2. A hinge cover tablet box and the like, cornprising a body member having a front Wall section and a pair of sidewall sections, a cover member also having a front Wall section and a pair of side Wall sections, hinge elements including a pair of hinge nodes formed one in each side wall section of one of said members adjacent its rear edge and also including a pair of elongated recesses formed one in each side wall section of the other of said memberseach of said elongated recesses having a pair of spaced rounded depressions one above the other, said hinge node. selectively occupying either the upper or the 10W` er of said depressions one location providing fo locking of the cover member in closed positioi the other providing a hinging action to permie" moving of said cover member into fully opened position, a pair of locking projections in the front wall sections of the members for cooperating with said hinge nodes in locking said cover member closed. and a pair of fulcrum lugs in said cover. member and bearing against said body member to provide for initially opening said cover member Iby applying a pressure at the rear edge thereof. 3. A pintleless substantially rectangular hinge cover box for tablets and the like, comprising in combination a box body member With front rear and side walls, a complementary cover member adapted to hingedly telescope over said body member, means on one of said members engaging the other member to obtain a rocking movement of said cover into open and closed position relative to said body member when a pinching pressure is applied to the box, and a hinge connection between said body and cover members comprising a pair of projections, one in each side Wall of one of said members and two complementary depressions in each side Wall of the other of said members, a said projection enter-T ing and hinging in first one and then in thef other of said depressions when the cover is openedl and'closed. .1' CHARLES H. DAHLGREN. f'

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2491264 *Feb 26, 1946Dec 13, 1949Continental Can CoTablet box
US2806626 *Apr 15, 1955Sep 17, 1957Robert NydenTablet boxes
US2867348 *Mar 24, 1955Jan 6, 1959F N Burt Company IncContainer
US4923085 *Nov 14, 1988May 8, 1990Dart Industries Inc.Container with pressure-release lid
US5398837 *Apr 9, 1993Mar 21, 1995Degrassi; AlbertoCell culture flask and closure
US7051790 *Feb 6, 2004May 30, 2006Asia Vital Component Co., Ltd.Protect cover for a radiator
US9106061 *Jan 10, 2012Aug 11, 2015Hubbell IncorporatedAdjustable thermostat cover with detents and level
US20050173105 *Feb 6, 2004Aug 11, 2005Fang-Cheng LinProtect shield for a radiator
US20100089935 *Oct 13, 2008Apr 15, 2010Laura Lynn HeilmanContainer having a lid that is openable upon application of a downward force
WO2010045111A1 *Oct 9, 2009Apr 22, 2010The Procter & Gamble CompanyContainer having a lid that is openable upon application of a downward force
U.S. Classification220/283
International ClassificationB65D43/16, B65D43/24, B65D43/14
Cooperative ClassificationB65D2251/1075, B65D43/24, B65D2251/105, B65D43/164
European ClassificationB65D43/24, B65D43/16C1