Receptacles – Closures – Removable closure guided in rotary movement
Patent
1995-09-19
1997-10-14
Shoap, Allan N.
Receptacles
Closures
Removable closure guided in rotary movement
220284, 220347, 220786, B65D 1752, B65D 4136
Patent
active
056762739
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
1. Field of the Invention
The invention relates to a device for closing a cover onto a container, wherein the cover and the container each have a protruding flanged edge which come to lie against each other in the closing position and wherein a hook-shaped cam connected to the cover co-acts with a counter-cam connected to the container for the purpose of locking the cover onto the container.
2. Description of the Prior Art
It is known to embody a cover and container with a large number of cams and counter-cams, wherein the cover must then be turned through a limited angle relative to the container in order to place the cam and counter-cam in mutual engagement. Such a closing method is usually difficult to embody for larger containers, all the more so since the cover has to be rotated with some friction relative to the container.
SUMMARY OF THE INVENTION
The invention has for its object to obviate the above stated drawback and to provide a device which is distinguished in that both flanged edges have continuous slotted holes in a corresponding pattern, wherein a wedge-shaped hand-tool can be placed in two mutually registering holes in the flanged edges for turning of the cover in relation to the container, such that the hook-shaped cam connected to the cover comes into engagement with the counter-cam.
Due to the use of a hand-tool, the body of which is substantially wedge-shaped and which can be placed in the slotted holes, turning of the cover relative to the container is considerably simplified to only pressing down the wedge-shaped handle with some force. With thus construction the cam and counter-cam also come into mutual engagement, and the closing force, which increases with the number of cams, can easily be produced by the wedge-shaped element.
BRIEF DESCRIPTION OF THE DRAWINGS
Above mentioned and other features will be further elucidated in the figure descriptions hereinbelow. In the drawings:
FIG. 1 shows a perspective view of a container with associated cover provided with a closing device according to the invention,
FIGS. 2 and 3 show a detail of the cover and the container of FIG. 1 on enlarged scale in the open and locked positions, respectively,
FIG. 4 is a perspective view corresponding with that of FIGS. 2 or 3, wherein a locking member for insertion into the slotted hole is shown.
DESCRIPTION OF THE PREFERRED EMBODIMENT
As shown in FIG. 1, designated with the numeral 1 is the container which here is of circular cross section and is provided on the top along the upper rim 2 thereof with an outward directed flange 3. The cross section of the flange is random and is shown here as being slightly V-shaped.
The cover 4 here has a hat-like shape and is likewise embodied along the bottom rim thereof with a corresponding flanged counter edge 5, the cross section of which is slightly V-shaped in likewise manner to that of the flanged edge 3.
It will be apparent that the form of the container and the cover is further of random nature and falls beyond the scope of the invention.
The cover can be locked onto container 1 by means of a number of cams 6 which are arranged on the underside of flanged edge 5 and which can come into engagement with counter cams 7 arranged in the flanged edge 3 of the container in the form of an edge of a continuous hole 8, which is further elucidated with reference to FIG. 2 and 3.
It will be apparent that as many cams 6 as counter-cams 7 are arranged and that by a small rotation of cover 4 relative to container 1 a locking can be effected between cam 6 and counter-cam 7, see below.
The flanged edge 3 and the flanged edge 5 are also embodied at a number of locations with slotted holes 9 and 10, respectively, which can fall into register when flanged edge 5 comes to lie on flanged edge 3. Such a slotted holes 9 and 10 serve to receive a hand-tool 11, the body of which takes a wedge-shaped form.
There now follows a description of the closing mechanism of the container of FIG. 1.
It can be seen clearly in FIG. 2 that the cam 6 has a hook-lik
REFERENCES:
patent: 3407958 (1968-10-01), Konijnenberg et al.
patent: 3514010 (1970-05-01), Rossi
patent: 3979016 (1976-09-01), Frater
patent: 4153176 (1979-05-01), Carson
patent: 4333580 (1982-06-01), Sweigart, Jr.
patent: 4682688 (1987-07-01), Budert
Jonkers Godefridus Hubertus Johannes
Schilthuizen Stephanus Franciscus
Kopsidas Niki M.
Shoap Allan N.
Wiva Verpakkingen B.V.
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