U.S. patent number 3,600,917 [Application Number 04/814,280] was granted by the patent office on 1971-08-24 for molded keyholder.
This patent grant is currently assigned to The Scott & Fetzer Company. Invention is credited to Albert W. Krock.
United States Patent |
3,600,917 |
Krock |
August 24, 1971 |
MOLDED KEYHOLDER
Abstract
A plastic injection-molded releasable keyring connector
comprises a slab-shaped female member and a male member comprising
an elongated web with a flange formed at the trailing end. The side
edges of the male web are stepped laterally outwardly to form a
pair of detents, and a deep slot extends into the web from the
leading end to define a pair of fingers each associated with one of
the detents. The detents engage upon full insertion of the male
member, and are finger releasable from engagement for withdrawal of
the male member.
Inventors: |
Krock; Albert W. (N/A, OH) |
Assignee: |
Company; The Scott & Fetzer
(N/A)
|
Family
ID: |
25214608 |
Appl.
No.: |
04/814,280 |
Filed: |
April 8, 1969 |
Current U.S.
Class: |
70/459; 70/457;
24/615 |
Current CPC
Class: |
A44B
15/002 (20130101); Y10T 70/8703 (20150401); Y10T
24/45529 (20150115); Y10T 70/8757 (20150401) |
Current International
Class: |
A44B
15/00 (20060101); A47G 029/10 () |
Field of
Search: |
;70/457,459,456,458,408
;150/40 ;24/23F,23SC,23CF |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Calvert; Ian A.
Assistant Examiner: Wolfe; Robert L.
Claims
What is claimed is:
1. A plastic injection-molded releasable keyring connector
comprising male and female injection-molded members, the female
member comprising a slab-shaped elongated body with relatively wide
face walls and relatively narrow edge walls and a solid end and an
open end, a body cavity extending from a mouth at the open end
toward the solid end and becoming progressively narrower along
shallow draft angles at the face walls and edge walls, a pair of
fingertip size edge notches at a distance from the cavity mouth and
interrupting each edge wall, said edge notches intersecting said
cavity and extending from face-to-face of the elongated body, a
keyring hole extending from face-to-face at the solid end of the
body, the male member of the connector comprising an elongated web
with a flange formed at the trailing end, the side edges of the web
being stepped laterally outward near the other or leading end to
form a pair of detents, a deep slot extending into the web from the
leading end to define a pair of fingers each associated with one of
the detents, a keyring hole extending through the flange, the
detents being progressively laterally compressible as the male
member is inserted in the female member and then self-extending
laterally to engage the edge walls as the male member reaches full
insertion and the detents reach the edge notches in the female
member, the detents being finger-releasable from engagement with
the edge walls for withdrawal of the male member, the female member
having a mouth notch located between the body edge walls and
extending from face wall to face wall, and a boss formed on said
flange on the male member, said boss being seated in said mouth
notch as the male member reaches full insertion.
Description
A number of keyring connectors have been manufactured in recent
years to enable the operator of an automobile to conveniently
separate the ignition key from other keys which he carries. The
wide use and the convenience of these devices makes them desirable
as an advertising giveaway or for similar promotional uses.
To succeed in such uses, a device should have a low manufacturing
cost, reliability of operation, and adaptability to bearing a
distinctive advertising message. The releasable keyring connector
of the present invention may be injection molded. Closure is firm
and positive, and release may be easily effected when desired, but
cannot happen accidentally. The device is flat and wide making it
ideal for the receipt of a label or imprinting bearing a name or
other advertising message.
An object of the invention is to combine the advantages of economy,
reliability, and appropriateness to advertising use in a better way
than has been accomplished heretofore.
The more specific objects and advantages of the invention will
become more fully apparent from the following description and the
accompanying drawings in which:
FIG. 1 is a perspective view of one embodiment of the
invention,
FIG. 2 is a plan view of the male member of the device shown in
FIG. 1,
FIG. 3 is a side elevational view of the male member seen in FIG.
2,
FIG. 4 is a plan view of the female member of the device seen in
FIG. 1,
FIG. 5 is a side elevation of the member seen in FIG. 4, and
FIG. 6 is a cross-sectional view taken on the plane of line 6--6 in
FIG. 4.
The illustrated device comprises a plastic injection-molded
releasable keyring connector 10. The connector 10 includes a male
injection-molded member 11 and a female injection-molded member
31.
The male member 11 comprises an elongated web 12 with a flange 13
formed at the trailing end of the male member. The side edges of
the web 12 are stepped laterally outward near the other or leading
end 18 to form a pair of detents 14. A deep slot 15 extends into
the elongated web 12 from the leading end 18 to define a pair of
fingers 16. Each of the fingers 16 is associated with one of the
detents 14. A keyring hole 17 extends through the flange 13 at a
portion thereof that is formed as a boss 19.
The female injection-molded member 31 includes a slab-shaped
elongated body 32 with relatively wide face walls 33 and relatively
narrow edge walls 34. The body 32 has a solid end 35 and an open
end 36. The body 32 defines a body cavity 37 extending from the
mouth 38 at the open end 36 toward the solid end 35. The body
cavity 37 becomes progressively narrower along the shallow draft
angles at the face walls 33 and the edge walls 34, the narrowing
occurring as the cavity 37 progresses from the open end toward the
closed end.
A pair of fingertip size edge notches 39 are formed at a distance
from the cavity mouth 38. The notches 39 interrupt each edge wall
34. The edge notches 39 intersect the cavity 37 and extend from
face-to-face of the elongated body 32. A keyring hole 40 extends
from face-to-face at the solid end 35 of the body 32.
The detents 14 are progressively laterally compressible as the male
member 11 is inserted in the female member 31, initial guiding
contact being at the more sharply tapered portions 41 of the edge
walls 34 of the female member at the mouth 38. As the male member
reaches full insertion and the detents 14 reach the edge notches 39
in the female member, the detents 14 extend themselves laterally to
engage the ends of the edge walls 34 at the notches 39. The detents
14 are easily finger released from engagement with the edge walls
34 for withdrawal of the male member by grasping the solid end 35
between the thumb and index finger, with these members positioned
in the edge notches 39, and simultaneously retracting the flange 13
together with the remainder of the male member 11. The grasping
action just described depresses the detents 14 to release them from
engagement. This release cannot be made accidentally. When the male
member is fully seated prior to release, it is firmly and solidly
positioned in the female member to establish a reliable
connection.
The female member may be provided with a mouth notch 42 located
between the body edge walls 34 and extending from one face of the
body 32 to the other. The boss 19 is seated in this mouth notch 42
as the male member 11 reaches full insertion, thus interlocking the
trailing end of the male member 11 and the mouth or open end 36 of
the female member against relative lateral movement.
* * * * *