Joiner

Information

  • Patent Grant
  • 6243929
  • Patent Number
    6,243,929
  • Date Filed
    Friday, January 21, 2000
    24 years ago
  • Date Issued
    Tuesday, June 12, 2001
    23 years ago
Abstract
The present invention provides a joiner for attaching items together, said joiner including a ring-like member having first and second ends to be linked to one another, said first end having a tubular section for reception therein of said second end, and a latching means to lock said first and second ends together.
Description




TECHNICAL FIELD




This invention relates to a joiner and relates particularly, though not exclusively, to a joiner for attaching chains together, especially jewellery.




BACKGROUND ART




In the jewellery trade it is necessary to join the ends of the chain, bracelet or similar device together or add other attachments thereto. Typical of the joiners used are parrot clasps, bolt rings and jump rings.




Jump rings are split rings where the free ends are pressed together to close the gap between the free ends. Jump rings can be stretched over time allowing the gap to open and the chain to slip out.




Parrot clasps have a pivotal latch at one end and a jump ring threading bore on the main body at the other end. The parrot clasp has the disadvantages of greater cost, complicated assembly, weakness of the jump ring and accidental opening of the pivotal latch.




Bolt rings have a hollow ring with a slideable gate within the ring. They usually include a ring soldered to the hollow ring. The soldered ring is a point of weakness as is the slideable gate.




All of these devices suffer from a strength problem in that a sharp tug on the chain may cause the device to fail and allow the chain to be disconnected. Such a disconnection may result in loss of the chain.




It is an object of the present invention to provide a joiner, which is stronger than the above mentioned devices.




A further object of the invention is to provide a joiner that is simple to attach and requires no soldering or special tools.




SUMMARY OF THE INVENTION




With this and other objects in view the present invention provides a joiner for attaching items together, said joiner including a ring-like member having first and second ends to be linked to one another, said first end having a tubular section for reception therein of said second end, and a latching means to lock said first and second ends together.




PREFERRED ASPECTS OF THE INVENTION




Preferably said latching means includes a notch in said joiner adjacent said second end and a lug on said tubular section which cooperates with said notch to prevent withdrawal of said second end from said tubular section.




In a preferred embodiment said lug is attached to said tubular section and is adapted to be pushed through a slot in said tubular section to be located in said notch.




Preferably the exterior contour of said lug matches the exterior contour of said tubular section to provide a smooth surface when said lug is located in said notch.




In a further practical embodiment said joiner may be circular, elliptical or oval in shape in its latched position. However, in the most preferred embodiment, the joiner is oval in shape in its latched position.











BRIEF DESCRIPTION OF THE DRAWINGS




In order that the invention may be more readily understood and put into practical effect, reference will now be made to the accompanying drawings, in which:





FIG. 1

is a front perspective view of a joiner made in accordance with a first preferred embodiment of the invention showing the joiner in its closed and locked position.





FIG. 2

is a rear perspective view of the joiner shown in FIG.


1


.





FIG. 3

is a front view of the joiner shown in FIG.


1


.





FIG. 4

is an end view of the joiner shown in FIG.


1


.





FIG. 5

is a plan view of the joiner shown in FIG.


1


.





FIG. 6

is a similar view to that of

FIG. 1

showing the joiner in its open and unlocked position.





FIG. 7

is a rear perspective view of the joiner shown in FIG.


6


.





FIG. 8

is a front view of the joiner shown in FIG.


6


.





FIG. 9

is an end view from “A” of the joiner shown in FIG.


8


.





FIG. 10

is an end view from “B” of the joiner shown in FIG.


8


.





FIG. 11

is a plan view of the joiner shown in FIG.


6


.





FIG. 12

is a longitudinal cross-sectional view of the joiner shown in FIG.


6


.





FIG. 13

a front view of a joiner made in accordance with a second preferred embodiment of the invention showing the joiner in its closed and locked position.





FIG. 14

is a front view of a joiner made in accordance with a third preferred embodiment of the invention showing the joiner in its closed and locked position.











DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT




In the drawings there is shown a joiner


10


for connecting the ends of a chain (not shown) together. The embodiment especially relates to the connecting of bracelets, chains, hanging items and similar jewellery but is not limited to that field. The invention is equally applicable to other forms of linking. Joiner


10


has a solid arcuate section


12


with a tubular section


14


attached at one end. Tubular section can be affixed to arcuate section


14


by adhesive, soldering or can be integrally formed therewith using a lost wax casting method. The use of this method allows a one-piece joiner to be manufactured. Adjacent the free end of arcuate section


12


is a notch


16


which will cooperate with a lug


18


on tubular section


14


. Lug


18


in its unlatched and unlocked position is as shown in

FIGS. 1

to


3


. Lug


18


again can be integrally cast with joiner


10


or can be soldered or otherwise affixed to tubular section. A slot


20


is formed in tubular section


14


which cuts across tubular section


14


and opens into the interior of tubular section


14


. Lug


18


will be at one end of slot


20


.




In use, the items (not shown) to be linked are slid onto arcuate section


12


through gap


22


. The free end


24


of arcuate section


12


is slipped into tubular section so that notch


16


is aligned with slot


20


. Lug


18


is then pushed through slot


20


to engage notch


16


. As seen in

FIGS. 4 and 5

the exterior contour of lug


18


will provide a smooth surface with the exterior contour of tubular section


14


to provide a uniform joint. Lug


18


cannot be easily withdrawn from slot


14


which provides a permanent connection without soldering or special tools. Joiner


10


thus provides a very strong connection which resists pulling. The tubular section has an unbroken cylindrical distal end portion as shown in FIG.


6


.




The preferred embodiment can be readily changed to suit requirements. The shape of the arcuate section


12


can be non circular e.g. triangular, square or any other shape. Arcuate section


12


need not be solid as it could also be a hollow tube. The joiner is not limited to its jewellery use as it could be used for other purposes e.g. attaching straps to a horse bridle. The joiner can be made from any suitable material e.g. precious metal, alloy, etc.




The invention will be understood to embrace many further modifications as will be readily apparent to persons skilled in the art and which will be deemed to reside within the broad scope and ambit of the invention, there having been set forth herein only the broad nature of the invention and a certain specific embodiment by way of example.



Claims
  • 1. A joiner for attaching items together, said joiner including a ring-like member having first and second ends to be linked to one another, said first end comprising a tubular section having an unbroken cylindrical distal end portion thereof for reception therein of said second end and a latching means to lock said first and second ends together, wherein said latching means includes a notch in said joiner adjacent to said second end and a lug on said tubular section which cooperates with said notch to prevent withdrawal of said second end from said tubular section, wherein an exterior contour of said lug matches an exterior contour of said tubular section to provide a smooth surface when said lug is located in said notch.
  • 2. A joiner as claimed in claim 1, wherein said lug is attached to said tubular section and is adapted to be pushed through a slot in said tubular section to be located in said notch.
  • 3. A joiner as claimed in claim 1, wherein said joiner is circular, elliptical or oval in shape in its latched position.
  • 4. A joiner as claimed in claim 3, wherein said joiner is oval in shape in its latched position.
Priority Claims (1)
Number Date Country Kind
PP3937 Jun 1998 AU
PCT Information
Filing Document Filing Date Country Kind 102e Date 371c Date
PCT/AU99/00421 WO 00 1/21/2000 1/21/2000
Publishing Document Publishing Date Country Kind
WO99/63854 12/16/1999 WO A
US Referenced Citations (8)
Number Name Date Kind
195940 Martin Oct 1877
309162 Pusheck Dec 1884
320792 Jopson Jun 1885
755473 Erb, Jr. Mar 1904
2856661 Holl Oct 1958
3427823 Musillo Feb 1969
3877250 Musillo Apr 1975
5628095 Appel et al. May 1997
Foreign Referenced Citations (3)
Number Date Country
25 13 985 Oct 1976 DE
275822 A1 Jul 1988 EP
1222724 Feb 1971 GB