US3400874A

US3400874A - Drawer-type carton

Info

Publication number: US3400874A
Application number: US525405A
Authority: US
Inventors: Shimada Katsuji; Shimada Katsuyuki
Original assignee: Individual
Current assignee: Individual
Priority date: 1965-12-04
Filing date: 1966-02-07
Publication date: 1968-09-10
Anticipated expiration: 1985-09-10
Also published as: GB1140389A; NO120223B; NL6611342A; CH449508A; DK131717C; SE311007B; DK131717B; DE1536280A1

Description

sept- 10, 1968 KATsUJl SHIMADA ET AL 3,400,874

DRAWER-TYPE CARTON Filed Feb. '7, 1966 United States Patent O 3,400,874 DRAWER-TYPE CARTON Katsuji Shmada, 31 Uchide Midorigaoka-cho, Ashiya-shi,

Japan, and Katsuyuki Shimada, -9 Mitsuya Minamidori, Higashi, Yodogawa-ku, Osaka-shi, Japan Filed Feb. 7, 1966, Ser. No. 525,405 Claims priority, application Japan, Dec. 4, 1965, l0/98,910 2 Claims. (Cl. 229-11) ABSTRACT 0F THE DISCLOSURE The present invention concerns a drawer-type carton containing me'ans for automatically opening the lid. Said means are characterized in that a Hap is provided at the upper edge of a back wall of the inner case o'f the carton and a 'hook portion, bent back outwardly and upwardly and having elastic properties, is provided on the back of said flap. An extension bent inwardly and also having elastic properties, is provided at the upper edge of the back wall of the outer case. When the inner case is pushed upward, the hook portion of the ap of the inner case interlocks with the extension of the outer case by the action of their mutual traction, and the upper edge of the inner case is opened and bent backward.

This invention relates to a drawer-type carton provided with a means :for automatically opening and bending backward an upper edge of an inner case and also provided with means .for preventing the inner ease from slipping out of either an open top or an open -bottom of an outer case of rectilinear form.

It is an important object of the present invention to provide a very interesting carton wherein the upper part of its inner case can be automatically opened and bent backward when the bottom of the inner case is pushed up against the outer case. Another object of the present invention is to provide a carton wherein its inner case will not go up far enough to slip out of the top of its outer case when the bottom tof its inner case is pushed up.

Still another object of the present invention is to provide a carton wherein its inner case will not go down far enough to slip out of the bottom of its outer case when the ceiling of its inner case is pushed down to close the lid.

Still a further object of the present invention is to provide a carton wherein neither said automatic opening means nor its operations are detectable from outside and thereby people will be very much interested in it.

So far various kinds of simple drawer-type cartons have been devised for holding cigarettes, candies, and other articles. But all of the conventional cartons require two separate operations. That is to say, to open the inner case and remove its contents, it is necessary to push the inner case out of the outer case, and also to push and open a bendable lid at an upper edge of the inner case by a nger or fingers. A smoker cannot take a cigarette out of this conventional carton easily and quickly when he wants to take a short rest when he is Very busy. When this c-onventional carton is used for a candy box, a child will find it very cumbersome to perform two separate operations when he wants to take candies out of it. In addition to these disadvantages, there are still other disadvantages in the conventional carton. It will injure the appearance of the carton and will deaden interest in it when a means for closing its lid is seen from outside while the lid is being closed. What is more, its inner case is apt to slip upwardly out of the top of its outer case when its inner case is pushed up too far, and also 3,400,874 Patented Sept. 10, 1968 ice its inner case is apt to slip downwardly out of the bottom of its outer case when its inner case is pushed down too `far.

The carton of the present invention has none of these disadvantages. With the simple means provided in this carton, only one simple operation of pushing up the bottom of its inner case is -required to automatically open its lid and bend it backward in a smart, comfortable manner, no further complicated operations are required. As the means for opening its lid is not detectable from outside when it is closed, the carton is a very interesting one. Further, its inner case Will not slip unexpectedly out of either the top or the bottom of its outer case and will be able to stop completely after a suitable sliding.

As a drawer-type carton, therefore, the carton of the present invention is perfect in all respects and has a remarkable effect.

A preferred embodiment of the present invention is shown in the accompanying drawings in which:

FIGURE 1 is a rear perspective view of an inner case of the present invention when it is closed within an outer case.

FIGURE 2 is a sectional View of an inner case of the present invention cut along the line A-A of FIGURE l when the inner case is closed within an outer case.

FIGURE 3 is an enlarged sectional view of a dropresisting device in the inner case.

Referring now to the drawings, an outer case 1 iS formed having a small vertical dimension 'and a rectangular form, with its top and bottom open.

An extension 4 folded over along an upper edge 3 of a back wall 2 of an outer case 1 extends inwardly, said extension having an elasticity at its fold. Only a `back wall 10 of an inner case 5 connects a main part 8 to a lid 9 at a fold line 11 bendable backward, the back wall being a continuous w'all from the main part 8 to the lid 9. The rest of the main part 8 and that of the lid 9 are separated at 16. Behind a lids back wall 12 is provided a ap 13 whose top `starts at the top of said lids back Wall 12 and is spaced from it and hangs downwardly. A slit a is made in a downward tongue or flap shape in the flap 13 land the cut portion is bent back upwardly to form a hook portion b. A slit d is made in an upward tongue shaped form on :a back wall 10 of the inner case 5, and the cut portion is bent upwardly and outwardly to for-m a stopping and holding piece c. A lower edge e of the ilap 13 is always placed between the stopping and holding piece c and the back Wall 10 in such a manner as to prevent the flap 13 from going down too far. A drop-resisting piece f is provided at both ends of the top of the inner c'ase S, said piece f protruding slightly from said both ends.

Now We are going to describe how to use the carton of the present invention. A really simple action of pushing up the `bottom of the inner case S in the direction of the arrow indicated in FIGURE 2 will raise the inner case 5, together `with the ilap 13, until the hook portion b, bending outwardly from the ilap 13, automatically interlocks with the elastic extension 4 of the outer case 1. After this occurs, only the ap 13 is restrained from going up. When the inner case is made to go up further, the lid 9 of the inner case 5 under the control of the ap 13 which is now restrained from going up will bend backward from the fold line 11, and the slit 16, which is to be separated from the side walls, will so open that the lid 9 will automatically open and bend backward. As this carton can be easily opened by 'a simple action of pushing up the bottom of its inner case, it has an advantage of being comfortably smart, and so it is suitable to the tast of modern people. Both the fit b of the inner case 5 and the extension 4 of the outer case 1 are pieces which are bent back and which have elastic properties. When the tit b of the inner case 5 interlocks automatically with the extension 4 of the outer case 1, thereiore, there will 'be practically no possibility of making such mistakes as are commonly found in a device of the conventional `carton wherein the extension is made to be inserted into a hole in the inner c'ase. In closing the carton, it is just enough to push down the lid 9 of the inner case 5 in the opposite direction, and the interlocking between the extension 4 and the hook portion b will be released. The iiap 13 will lie between the back wall 2 of the outer case 1 and the back wall 10 of the inner case 5, touching both of them in the parallel direction, 'and the extension 4 will lie between the back wall 2 and the ap 13, touching both `of them in the parallel direction. Therefore, this kind of trick cannot be seen from outside, and so the carton of the present invention will provide a -very interesting one,

As a lower edge e of the ap 13 lies always between the back wall 10 of the inner case 5 and 'a stopping and holding piece c, the lower edge e of the ap 13 -will be stopped and constrained to go down by means of the stopping and holding piece c when the inner case 5 is pushed up to open the lid 9 of the carton of the present invention. Thus this device will prevent the inner case 5 from going up beyond a certain distance, and so it will completely prevent the inner case 5 from going up so far as to slip out of the top of the outer case 1. In preventing the inner case 5 from slipping out of the outer case 1, we do not insert the lower edge e of the ap 13 between the stopping and holding piece c and the back wall 10 of the inner case 5 Iafter the inner case 5 starts moving, because the lower edge e of the -flap 13 is always lying between the stopping and holding piece c and the back wall 10 of the inner case 5. Thus the carton of the present invention has an advantage that no mistake of insertion can be made and that its operation can be accomplished accurately and completely. What is more, when the lid is closed, a drop-resisting piece f 'always makes a close contact with the upper edge g of the outer case 1 and prevents the inner case 5 from dropping any further, and securely holds the inner case 5 from dropping out of the outer case 1. Thus the carton may be said to be a really perfect one in 'all respects.

What we claim is:

1. A carton having an automatically opening cover, said carton comprising an outer sleeve-like casing having an unapertured back wall which extends the ull length of the outer casing, an extension having resiliently attached to the edge of the back wall at the upper edge thereof 'and bent downwardly along the inside surface of the back wall, an inner casing slidable within said outer casing and having a cover constituted by a top panel, and at least a cover re'ar panel and cover side panels depending therefrom, the cover rear panel being hinged to the upper edge o'f the back wall of the inner casing, and a flap hingedly secured to the cover and extending downwardly between the b'ack walls of the inner and outer casings and having an upwardly extending hook portion projecting therefrom engagea'ble with said extension of the outer casing causing the cover on the inner case to be opened and bent backward when the inner casing is urged upwardly and means `for pre venting the inner case from slipping out of the upper end of the outer casing comprising a stopping and holding piece which is bent loutwardly and upwardly from the back wall of the inner casing and engageable with lower edge of the ilap depending lfrom the cover when s'aid inner casing is urged upward to the point where the cover is opened and bent backwards.

2. A carton as claimed in claim 1, further comprising means for preventing the inner casing from slipping out of the lower end of the outer casing of the carton and comprising extensions on the ends of the cover top panel projecting slightly outwardly from both ends of the cover top panel and engageable with the top edge of the outer casing.

References Cited UNITED STATES PATENTS 439,993 11/1890 Bailey 229-20 621,173 3/1899 Stinton 229-11 1,639,166 8/1927 Burton 229--11 1,962,468 6/ 1934 Stein 229-20 2,597,810 5/1952 Myers 229-19 2,919,845 1/ 1960 Hackmyer.

DAVIS T. MOORHEAD, Primary Examiner.