Snap hinge made of plastic and container for longitudinally extending diagnostic test supports

• US 4,615,462 A
• Filed: 06/12/1985
• Issued: 10/07/1986
• Est. Priority Date: 06/28/1984
• Status: Expired due to Term

• Current Assignee: Zeller Plastik Koehn Grabner & Co.
• Original Assignee: Zeller Plastik Koehn Grabner & Co.
• Inventors: Brach, Ulrich, Weiss, Erich, Koehn, Jochen, Sacherer, Klaus D.
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US06/744,116
• Time in Patent Office: 482 Days
• Field of Search: 220/335, 220/339, 215/235, 16/227, 16/DIG. 13, 222/498, 222/545, 222/556
• US Class Current: 16/227
• CPC Class Codes: A61B 10/0096 Casings for storing test samples A61B10/0038 and A61B10/0045 take precedence; preservation of living parts of the human or animal body A01N1/02; containers for retaining a material to be analysed B01L3/50; containers for enzymology or microbiology C12M1/16; swab-sampler being part of enzymology or microbiology container C12M1/30
• CPC Class Codes: A61B 2010/0006 involving a colour change
• CPC Class Codes: B65D 2251/1033 Protuberances and cavities provided on a horizontal flange respectively of the container or base and the closure, and penetrating one into the other, e.g. of the press-button type
• CPC Class Codes: B65D 2401/15 Tearable part of the closure B65D2401/60 takes precedence
• CPC Class Codes: B65D 47/0861 and elastically biased towards both the open and the closed positions
• CPC Class Codes: B65D 81/266 for absorbing gases, e.g. oxygen absorbers or desiccants B65D51/244, B65D51/30 take precedence
• CPC Class Codes: E05D 1/02 made of one piece
• CPC Class Codes: E05Y 2999/00 Subject-matter not otherwise provided for in this subclass

Abstract

A unitary snap hinge made of plastic with two hinge parts which are connected with each other by means of a main joint. A flexible connecting piece is connected with the hinge parts by means of secondary joints, whereby the secondary joints have a distance from the main joint transverse to the joint axis and that the joints are designed as film joints. The hinge parts have the tendency to snap into the one or other end position from a position of an unsteady balance within their own pivot range. The snap hinge is a separate structural element. The one hinge part supports a locking element for a removal opening, the other hinge part supports at least one adapter piece with arresting elements. Thereby, the snap hinge can be mounted on a container or on the locking piece of the same. A snap hinge or other hinge made of plastic and which is part of a lock may have tearable parts on its foldable hinge part which during the first time closing of the lock are fixedly connected with the lower part thereof and are torn off during the first time opening.

Claims

1. A unitary snap hinge made of plastic for closing a container adapted for simple molding and providing freedom of design of a locking member and container comprising:

a snap hinge means for closing a container wherein the snap hinge means is separate from an associated container having a locking means.

2. A unitary snap hinge in accordance with claim 1 wherein the snap hinge means comprises two hinge parts connected to each other by a main joint, one of the hinge parts supporting a locking element for a removal opening of a container and the other hinge part supporting at least one plug part for mounting on a container or a locking piece associated therewith.

3. A unitary snap hinge in accordance with claim 2 further comprising an originality safety having at least one tearable part (174, 188, 194) provided on the snap hinge means which, after the first time closing the snap hinge means, is fixedly connected with a locking piece associated with the container.

4. A unitary snap hinge in accordance with claim 2 wherein the container is a container for longitudinally extending test carriers comprising:

a longitudinally extending container body for receiving the test carriers;

a locking means for locking the container body in a moisture proof manner;

the container body and the locking means are injection molded parts;

the container body has a flattened cross section in a plane transverse to its longitudinal direction deviating from the circular shape;

the cross section of said removal opening is considerably smaller than the cross section of the container body;

the container bottom encompasses a bottom element being separate from the remainder of the container bottom and moisture proof connected therewith; and

the container body encompasses a chamber for receiving a drying substance.

5. A unitary snap hinge made of plastic comprising:

(a) two hinge parts connected to each other by a main joint;

(b) at least one flexible connecting piece connected with the two hinge parts by means of secondary joints;

(c) the secondary joints each being distanced from the main joint transversely to the joint axis;

(d) the joints are shaped in form of film hinges so that the hinge parts have a tendency to snap into one of the end positions from a position of an unstable balance which is located within its own pivot range;

comprising the following features;

(e) the snap hinge (1,1'"'"',1") is a separate structural part;

(f) one of the hinge parts (4) of this structural part supports a locking element (32) for a removal opening of a container;

(g) the other hinge part (2) supports at least one plug part with arrest element(s) for mounting on the container or its locking piece.

6. Snap hinge in accordance with claim 5 wherein:

(a) the flexible connecting piece (10) is arcuate in shape and points in the closed condition of the snap hinge, which is mounted on the container or the locking piece, towards the container;

(b) the main joint (6) is mounted on the side of the snap hinge which faces away from the container.

7. Snap hinge in accordance with claim 6, characterized by the following features:

(a) hinge parts (2,4) are substantially plate like;

(b) the main joint (6) and the secondary joints (12,14) are mounted at opposite faces of the hinge parts.

8. Snap hinge in accordance with claim 7, characterized in that the secondary joints (12,14) are supported on bars (42,44) which protrude from the hinge parts towards the container.

9. Snap hinge in accordance with claim 5, characterized in that the adapter part is shaped in the form of a plug pin (55) with an outer annular shoulder (56).

10. Snap hinge in accordance with claim 5, characterized in that the adapter part is designed as an adapter plug (16,64) with an inner annular shoulder (18) or inner mounted cam (66).

11. Snap hinge in accordance with claim 10, characterized by the following features;

(a) the adapter plug (64) also serves for receiving the container orifice;

(b) the hinge part (4) which supports the locking piece is connected with the adapter plug (64) by means of its main joint (6) and a secondary joint (12) and in its locked position is mounted at least partially inside of the adapter plug.