Information
-
Patent Grant
-
6675446
-
Patent Number
6,675,446
-
Date Filed
Monday, August 27, 200123 years ago
-
Date Issued
Tuesday, January 13, 200421 years ago
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Inventors
-
Original Assignees
-
Examiners
- Sandy; Robert J.
- Melwani; Dinesh N
Agents
- Knobbe, Martens, Olson & Bear LLP
-
CPC
-
US Classifications
Field of Search
US
- 024 7127
- 024 7129
- 024 7121
- 024 7122
- 024 115 H
- 024 129 R
- 024 34
- 024 669
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International Classifications
-
Abstract
A two-piece slider for a lanyard is adapted to be assembled for sliding on a lanyard cord. The slider has features to restrain the pieces from relative rotation. Such features include a recess/protrusion combination having non-circular shape, an off-center pin/hole combination, or the slots in which the lanyard is placed adapted to restrict rotation. The slider has a flat surface with a rim around it for receiving a customer selected logo or design.
Description
FIELD OF THE INVENTION
The present invention is directed to lanyard sliders, and more particularly, to an improved system for connecting a slider to a lanyard cord.
BACKGROUND OF THE INVENTION
In sports and other activities, lanyards comprising a cord, are often worn around one's neck in order to retain a small object such as a key, whistle, or identification badge, and yet leaving the hands free. Lanyards have been used in such an application for some time, and are well known. Typically, the ends of the cord are secured together with an easily releasable connection such as a ferrule. Typically a ring, hook, clasp, clip or end fitting hardware is provided for attaching an object to the cord.
Lanyards often include sliders which are used to reduce the size of the loop surrounding the wearer's neck, as well as for aesthetic purposes. Typical sliders are a solid piece of material with one or more holes through which the lanyard may be placed. The lanyard cord is typically threaded through holes of the slider during manufacture of the lanyard due to the fact lanyards are often either fabricated into a loop, or the hardware at each end of the lanyard is too large to pass through the holes in the slider. Lanyard cords are available in many different colors and materials. Lanyards are additionally provided with many different end fittings. Sixty-four combinations are offered in a current catalog and, of course, more could be made. Some customers want a slider and some do not. Carrying assembled lanyards with sliders would double the number of units. It is not practical for a manufacturer to maintain an inventory of all desired assembled lanyards with or without sliders and with cords of varying style, color and end fittings. Special orders could be utilized to reduce inventory needs, but that is also impractical from a cost and time standpoint. Thus, a need exists for an improved system for meeting customer needs.
SUMMARY OF THE INVENTION
In accordance with the invention, a two-piece lanyard slider is provided that can be assembled with a variety of cords and end fittings and with a customer-selected design or logo. One embodiment of a lanyard slider having preferred features and advantages includes a slider comprising a first portion adapted to mate with a second portion having at least one channel to receive a lanyard cord. The slider portions can be readily assembled on a customer selected lanyard cord and end fitting. According to one embodiment, the first portion may comprise a non-circular protrusion that fits within a mating recess in the second portion to restrain the portions from rotation relative to one another. This ensures that a logo or design on the slider is properly oriented. In any of the embodiments, the outer surface of one slider portion has a surface surrounded by a rim for receiving a design or logo.
Another embodiment of a slider for a lanyard comprises a first portion having a split post that fits within a hole in a second portion. Also provided is at least one slot to receive a lanyard cord. In a preferred embodiment, the split post portions include barbs on their tips, and the second portion has a shoulder to retain the barbs.
In one embodiment, the slider first portion has a non-circular protrusion formed on a cap having a disc shape from which the protrusion and a post extend. The protrusion and a recess on the second portion or base are adapted to interact to restrain the slider portions from rotation relative to one another.
According to another embodiment, a slider for a lanyard comprises a first portion having a pair of channels. A slider second portion has two channels that mate with the channels on the first portion to form complete passages for receiving a lanyard cord. The portions are adapted to snap together to capture the cord. The slider may further comprise means to restrict relative rotation between the two portions. The channels may have a substantially semi-circular shape, a substantially semi-elliptical shape, or a substantially rectangular shape. The channels may be either parallel or non-parallel.
With the described sliders, a quantity of slider caps and slider bases are inventoried, together with a quantity of lanyard cords with the various end fitting hardware. When a customer order is received for a lanyard cord of a particular color or type, with a particular end fitting, and with a slider, the cord is assembled into the channels in the slider base, and the cap is snapped onto the base to capture the cord. A desired logo or design can then be mounted on the slider, preferably on a rimmed surface on the cap.
This system is particularly advantageous when the lanyards without a slider are manufactured and assembled in countries with low labor costs. The slider with customized printing, if desired, can then be added in the customer's country which may have higher labor costs.
BRIEF DESCRIPTION OF THE DRAWINGS
Having thus summarized the general nature of the invention, certain preferred embodiments and modifications thereof will become apparent to those skilled in the art from the detailed description herein having reference to the figures that follow:
FIG. 1
is a perspective view of a lanyard with a slider disposed thereon;
FIG. 2
is a perspective assembly view of a two-piece lanyard slider;
FIG. 3
is a section view of the slider of
FIG. 2
shown disassembled;
FIG. 4
is a section view of the slider of
FIG. 2
shown assembled;
FIG. 5
is a plan view of the first piece of the slider of
FIG. 3
;
FIG. 6
is a plan view of the second piece of the slider of
FIG. 3
;
FIG. 7
is a perspective assembly view of an alternative embodiment of a two-piece lanyard slider; and
FIG. 8
is a perspective assembly view of an alternative embodiment of a two-piece lanyard slider.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1
shows a lanyard
10
having a two-piece slider
12
slidably disposed on a lanyard cord
13
positioned slots
14
within the body of the slider
12
. The slider
12
is preferably disposed on the cord
13
such that a flat surface
16
faces outwards as shown. The terms “top,” “bottom,” “front” and “back” as used herein in reference to various parts of the slider
12
will refer to the orientation shown in
FIG. 1
, as this is the orientation in which the slider will most commonly be worn. The front of the slider
12
preferably comprises a flat surface
16
which may be decorated with a logo, decal, or other design as requested by the customer from the manufacturer or seller. In a typical arrangement, a bead or ferrule
18
or other similar item is frictionally disposed on the lanyard cord below the slider
12
to frictionally retain the ring or other device
20
disposed at the bottom of the lanyard
10
. The slider
12
is preferably made of a suitable molded plastic. The plastic used is preferably sufficiently rigid to allow small features to be substantially resilient when necessary. Metals or other materials may also be used without departing from the spirit of the present invention.
As shown in
FIG. 2
, the slider
12
is preferably substantially cylindrical in shape, however, other three-dimensional shapes may be employed. A slider
12
having preferred features and advantages comprises a male portion or cap
22
and a female portion base
24
. Preferably, the cap and base are molded as completely separate elements. The cap
22
comprises features adapted for insertion through a hole
26
in the base
24
. In this embodiment, a post
28
is designed to be inserted in to the hole
26
, such that the cup
22
will “snap-fit” into the base
24
so as not to be readily removable. The caps
22
also preferably has an irregularly shaped protrusion
30
(seen in
FIGS. 3-5
) at the base of the post
28
. The protrusion
30
is adapted to be received by a similarly shaped recess
34
in the base
24
such that the protrusion
30
and recess
34
act as a key in order to restrict relative rotation between the two parts
22
,
24
. Alternatively, as will be recognized by those skilled in the art, the protrusion may be on the base
24
with a corresponding recess on the cap
22
if so desired.
With continued reference to
FIG. 2
, the base
24
also preferably comprises slots
14
shaped and sized to receive a lanyard cord
13
. The cap
22
is preferably sized and shaped such that the cord will be retained within the slots
14
of the base
24
once the slider
12
is assembled, as shown in FIG.
1
. The preferred shape and features of the slots will be discussed below, but the slots may comprise any shape, size or number such that the slider operates as described herein.
With reference now to
FIGS. 2-4
, the male portion
22
generally comprises a substantially flat disc section
38
having on its back side
40
the post
28
extending substantially away from the disc section
38
. The post
28
is preferably divided into two split post portions
42
having barbs
44
at their tips. Alternatively, the post
28
may be split into three or more split post portions as desired. The split post portions
42
are preferably substantially resilient such that they will preferably flex towards one another in the direction of the arrows
46
when the post
28
is inserted into the hole
26
. The split post portions
42
are preferably completely separated such that the gap
48
between them extends along their entire length so as to allow the maximum degree of deflection. Alternatively, the male portion may comprise a single solid post, and the female portion may comprise flexible members within the central hole adapted to receive and retain the post.
The barbs
44
at the distal end of the split post portions
42
are preferably sized and positioned such that the linear dimension indicated by reference number
50
of the split post portions
44
is substantially equal to the linear dimension indicated by reference number
52
on the female portion
24
such that the male and female portions may be assembled substantially as shown in FIG.
4
. The barbs
44
also preferably comprise sloped sections
54
in order to facilitate insertion into the female portion
24
. The hole
26
in the female portion
24
through which the post
28
is to be inserted preferably widens to form a shoulder
56
within the body of the female portion
24
. The shoulder
56
will engage the barbs
44
once the post
28
is fully inserted through the hole
26
, thereby retaining the male portion
22
within the female portion
24
.
With continued reference to
FIGS. 2-4
, the male portion
22
preferably has a rim
58
surrounding the periphery of the front surface
16
of the disc portion
38
. The front surface
16
of the male portion
22
is preferably the visible surface of the slider
12
once assembled on a lanyard cord, as shown in FIG.
1
. Thus the rim
58
surrounding the visible face of the male portion
22
may frame a decal or sticker placed on the flat front surface
16
.
As shown in
FIG. 5
, the protrusion
30
on the male portion preferably comprises a substantially D-shaped (that is, round with a flat edge
60
) raised protrusion
30
at the base of the post
28
. The gap
48
between the two split post portions
42
may extend at least partially into the protrusion
30
. As shown in
FIG. 6
, the female portion
24
preferably comprises a similarly shaped recessed feature
34
in which the D-shaped protrusion will sit when the slider
12
is assembled. The D-shaped protrusion
30
and the D-shaped recess
34
interact to prevent relative rotation which otherwise could result in loss of orientation of the male portion
22
. The protrusion and recess may comprise essentially any non-circular shape such that the male and female portions are restricted in their relative rotations.
In an alternative embodiment shown in
FIG. 7
, the protrusion on the male portion may include one or more pins
62
, and the female portion
24
may have corresponding holes
64
into which the pins
62
may sit once the slider
12
is assembled. In this way relative rotation between the two parts may also be restricted.
The hole
26
through which the male portion may be inserted (see
FIG. 2
) is preferably located at the geometric center of the female portion
24
as viewed in FIG.
6
. On either side of the recess
34
is the pair of slots
14
which provide a space in which a lanyard cord may be placed. The slots
14
have a substantially rectangular cross section, as best seen in
FIGS. 2
,
6
and
7
. The rectangular slots are particularly suited for use with a flat-woven lanyard like that shown in FIG.
2
. Alternatively, other slot cross sections may be desirable to correspond with the shape of the particular lanyard cord to be used. For instance, the slots could be substantially semi-circular or semi-elliptical to accommodate a round or elliptical lanyard cord. The slots
14
are preferably non-parallel as shown in
FIG. 6
in order to conform to a natural position of the lanyard cord (see
FIG. 1
) with the cord
10
being close together at the bottom
66
of the slider, and further apart at the top
68
. The slots
14
may be more or less parallel than those shown as desired. Alternatively, one may desire only a single slot through which both lanyard segments may be placed.
In assembly of the slider
12
, the lanyard cord
13
is placed within the slots
14
formed in the female portion
24
. The post
28
of the male portion
22
is then inserted into the central hole
26
in the female portion
24
while aligning the D-shaped protrusion
30
with the D-shaped recess
34
, until the barbs
44
of the post
28
are fully inserted through the hole
26
. Once fully inserted, the split post portions
42
are returned to their separated position such that the barbs
44
engage the shoulder
56
(see
FIG. 4
) of the female portion
24
, thereby retaining the male portion
22
within the female portion
24
. Once fully assembled, the lanyard
10
will preferably slide freely through the slots
14
, and the disc section
38
of the male portion will prevent the lanyard cord
10
from being removed from the slider
12
.
In an alternative embodiment shown in
FIG. 8
, both the male and female portions
70
,
72
may comprise substantially semi-circular slots
74
sized to receive a lanyard cord with a circular cross section. As with the above embodiments, the male portion
70
comprises a split post
28
with barbs
44
formed to be received within a central hole
26
having a shoulder (as discussed with reference to
FIGS. 3 & 4
) formed in the female portion
24
. The slider of the present embodiment may comprise a protrusion/recess combination to restrain the male and female portions
70
,
72
respectively from rotation relative to one another as discussed above. Alternatively, the embodiment of
FIG. 8
may omit the protrusion and recess combination, thus relying on the lanyard cord within the slots
74
to restrain the male and female portions
70
,
72
respectively from relative rotation. The split post is preferably sized such that the barbs
44
engage the shoulder when the flat surfaces
76
,
78
respectively of the male and female portions
70
,
72
respectively, are in contact. If desired, the slots
74
may be sized such that the lanyard cord is slightly compressed within the slots when the slider
12
is assembled.
Although this invention has been disclosed in the context of certain preferred embodiments and examples, it will be understood that the invention extends beyond the specifically disclosed embodiments to other alternative embodiments and/or uses of the invention and obvious modifications and equivalents thereof. Thus, it is intended that the scope of the present invention herein disclosed should not be limited by the particular disclosed embodiments described above, but should be determined only by a fair reading of the claims that follow.
Claims
- 1. A slider for a lanyard comprising:a first cylindrical portion having a central hole coaxial with the cylindrical base member and extending between first and second circular faces, said first face comprising a pair of spaced channels extending across the first face on either side of the central hole; and a second cylindrical portion having lower and upper circular faces, said lower face comprising a pair of spaced channels that mate with the channels on the first portion to form complete channels to receive portions of a lanyard cord, and said second portion having a centrally-located bifurcated post adapted to be inserted into the hole of the first portion to enable the portions to snap together to capture the cord in the channels while permitting the slider to slide on the cord, wherein the upper face is configured to display an image; wherein the bifurcated Post of the second portion comprises barbs adapted to engage a shoulder within the second portion, and wherein the second portion comprises a non-circular protrusion at a base of the post, and the first face of the first portion comprises a non-circular recess adapted to receive the protrusion to restrain the first portion and second portion from rotation relative to one another, such that an orientation of the second portion is maintained relative to the second portion.
- 2. The slider of claim 1, wherein the non-circular protrusion and the non-circular recess are substantially in the shape of a ‘D.’
- 3. The slider of claim 2, wherein the upper surface of the second portion comprises a substantially flat disc with an exterior surface adapted for displaying a design, with a raised rim around the surface.
- 4. A lanyard slider comprising:a substantially cylindrical base portion having first and second circular faces and a central hole extending between the first and second faces and co-axial with the base member, and a pair of channels on either side of the hole and extending perpendicular to the axis of the central hole, each of said channels having a bottom wall, first and second side walls, first and second open ends, and an open top, said channels being straight and non-parallel; a circular cap portion having a substantially flat upper surface surrounded by a raised rim and a substantially flat bottom surface and a bifurcated post extending from the bottom surface, the post comprising barbs and being adapted to be inserted through the central hole from the first face of the base portion without extending beyond the second face and to at least temporarily secure the cap portion to the base portion by engaging the barbs on a shoulder within the base member; wherein the cap portion comprises a non-circular protrusion at a base of the post, and the first face of the base portion comprises a non-circular recess adapted to receive the protrusion to restrain the base portion and cap portion from rotation relative to one another, such that an orientation of the cap portion is maintained relative to the base portion; wherein said cap portion is adapted to enclose the open top of each of the pair of channels such that a lanyard cord can be slidably retained in the channels.
- 5. The lanyard slider of claim 4, further comprising a lanyard cord forming a closed loop and captured between the cap portion and the base portion such that the cord is slidable through the assembled slider.
- 6. The lanyard of claim 5, wherein the cap portion comprises an image on the upper surface of the cap portion, whereby the inter-engaging non-circular projection and non-circular recess maintain the orientation of the image relative to the cord.
US Referenced Citations (23)