Information
-
Patent Grant
-
6590176
-
Patent Number
6,590,176
-
Date Filed
Monday, March 12, 200123 years ago
-
Date Issued
Tuesday, July 8, 200321 years ago
-
Inventors
-
-
Examiners
Agents
-
CPC
-
US Classifications
Field of Search
US
- 200 341
- 200 308
- 200 310
- 200 317
- 200 329
- 200 3321
- 200 296
-
International Classifications
-
Abstract
A push-button actuatable electrical switch is disclosed. In one embodiment, the push-button electrical switch includes a body having a first end and a second end, an actuator associated with the body, a push-button lens cap mounted to the actuator and extending from the first end of said body, an electrical switch having a switch button for activating the switch, and a mount adapted to support a lamp and the electrical switch. In one embodiment, the body includes a latch extending outwardly from the bottom end of the body in a direction generally opposite the top end and the mount includes a surface for engagement by the latch for connecting the mount to the body in position such that movement of the actuator with the push-button lens cap causes the switch button to be activated. In one embodiment, at least a portion of the body adjacent the push-button lens cap is transparent and illuminated by the lamp. In another embodiment, an electrically conductive pathway is defined through the body to a support structure whereby electrical discharges are routed to ground rather than through the lamp and electrical switch.
Description
FIELD OF THE INVENTION
The present invention relates to electrical switches, and more particularly to a push-button type electrical switch.
BACKGROUND OF THE INVENTION
Push-button type switches are utilized in thousands of applications. One common application for push-button switches is as an input device for a gaming machine. For example, a gaming machine may include a plurality of push-buttons permitting a user to indicate a input, such as to “hold” a card, place a “bet” of a monetary amount, “deal” cards or the like.
In the gaming machine environment, the push-buttons are generally mounted to a portion of the gaming machine housing, such as a metal panel. One problem with these buttons is that they are subject to electrostatic discharge (ESD). A user of the machine may carry an electric charge, such as developed by walking across carpeting in a casino. When the user touches a button of the gaming machine, the path to ground through the button is through the electrical circuitry thereof, including the switch. Thus, the ESD is released through the circuitry of the button. This discharge may harm the switch of the button and may even travel through the gaming machine circuitry to a controller, such as a gaming machine processor. The discharge may damage this circuitry or interfere with the operating of the game for a short period of time. In either event, the discharge causes harm.
During the lifetime of the gaming machine, the buttons of the machine may be used tens of thousands of times. It is therefore important to provide a push-button switch which will accept a high duty cycle and has a long-life. Among other things, components of a button may need to be replaced in order to maintain the button, or else the entire button must be replaced.
In many instances, gaming machines are located in areas of reduced illumination. The reduced illumination makes it easier for a player of the game to view information presented on a video display of the gaming machine. On the other hand, the reduced illumination makes it difficult for a player to observe other aspects of the gaming machine, such as the location of push-buttons. It is desirable to provide a button which is easy to see and use.
SUMMARY OF THE INVENTION
The present invention is a push-button actuatable electrical switch.
In one embodiment, the push-button electrical switch includes a body having a first end and a second end. An actuator is associated with the body. A push-button is mounted to the actuator and extends from the first end of said body. An electrical switch is provided having a switch button for activating the switch. A mount is adapted to support a lamp and the electrical switch. The mount is connected to the body.
In one embodiment, the body includes at least one latch extending outwardly from the bottom end of the body in a direction generally opposite the top end. The mount includes a surface for engagement by the at least one latch for connecting the mount to the body in position such that movement of the actuator with the push-button causes said switch button to be activated.
In one embodiment, two latches extend outwardly from stop segments located in an interior area of the body at its bottom end. The mount includes a passage through which one of the latches extends, and a recessed or cut-away area along which the other latch extends. The latches both include catches which engage a bottom surface of a main portion of the mount when the mount is engaged with the body. The latches are moveable to a position in which the catches are released, allowing the mount to be disconnected from the body, such as for replacement of the lamp.
In one embodiment, at least a portion of the body adjacent the push-button is transparent and illuminated by the lamp. In one embodiment, the body includes a wall defining a cavity at its top end. The push-button is located at least partially in the cavity. The wall includes a flange which extends outwardly from the push-button, this flange being illuminated. In one embodiment, the lamp is located in an interior portion of the body. The entire body is transparent, transmitting light emitted by the lamp, including to the areas of the body adjacent the push-button.
In another embodiment, an electrically conductive pathway is defined through the body to a support structure whereby electrical dischargers are routed to ground rather than through the lamp and electrical switch. In one embodiment, the conductive pathway is defined by conductive material in or on the body. The conductive material may comprise conductive carbon particles embedded in plastic forming the body. In one embodiment, the pathway is defined through other portions of the body, such as an adapter or lock nut connected to the body and in contact with a support surface to which the push-button actuatable electrical switch is mounted.
Further objects, features, and advantages of the present invention over the prior art will become apparent from the detailed description of the drawings which follows, when considered with the attached figures.
DESCRIPTION OF THE DRAWINGS
FIG. 1
is a side view of a push-button electrical switch of the invention mounted to a support structure in the form of a gaming machine housing;
FIG. 2
is an exploded view of the push-button electrical switch illustrated in
FIG. 1
;
FIG.
3
(
a
) is a cross-sectional view of a body of the push-button electrical switch illustrated in
FIG. 1
along with a portion of an engaged lamp/switch mount connected thereto;
FIG.
3
(
b
) is a perspective view of the body of the push-button electrical switch looking in a direction from a bottom end towards a top end thereof;
FIG. 4
is a perspective view of a lamp/switch mount of the push-button electrical switch of the invention; and
FIG. 5
is a cross-sectional view of the push-button electrical switch illustrated in
FIG. 1
taken along a plane perpendicular to the support structure.
DETAILED DESCRIPTION OF THE INVENTION
The invention is a push-button type electrical switch. In the following description, numerous specific details are set forth in order to provide a more thorough description of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without these specific details. In other instances, well-known features have not been described in detail so as not to obscure the invention.
In general, the invention is a push-button type electrical switch. The switch includes a push-button for actuating an electrical switch. In one embodiment, the push-button electrical switch has a light or lamp for illuminating a portion of a body or housing of the push-button electrical switch adjacent at least a portion of the push-button, thereby permitting easy identification of the location of the push-button by a user. In one embodiment, the push-button electrical switch has a configuration which promotes ease of assembly and disassembly. In one embodiment, the switch has one or more conductive body portions for transmitting electric discharges there through to a remote location, such as a supporting structure to which the body is mounted.
A push-button electrical switch
20
of the invention will first be described generally with reference to FIG.
1
. As illustrated, the push-button electrical switch
20
may be mounted to a support structure. As illustrated, the push-button electrical switch
20
is mounted to a panel or housing
22
of a gaining machine. In general, the push-button electrical switch
20
includes a push-button lens cap
24
extending from a top portion or end of a button body or housing
26
. An adapter
28
and lock nut
30
are associated with an exterior portion of the body
26
. A lamp/switch mount
32
is connected to the body
26
and extends from a bottom portion or end thereof generally opposite the push-button tens cap
24
. An electrical switch
34
is connected to the lamp/switch mount
32
.
In the arrangement illustrated, the housing
22
comprises a metal panel forming a portion of a body or housing of the gaming machine. The housing
22
has an aperture there through. Preferably, the body
26
extends through the aperture. The aperture is larger than the portion of the body
26
which extends there through, but smaller in dimension that the adapter
28
. The adapter
28
is positioned over the body
26
adjacent a top side of the housing
22
, obscuring the aperture through which the body extends. The lock nut
30
is affixed to the body
26
from the bottom side of the housing
22
. In this manner, the housing
22
is positioned between the adapter
28
and the lock nut
30
, securing the push-button electrical switch
20
to the housing
22
.
As detailed below, the push-button lens cap
24
extends outwardly from the body
26
for engagement by a user thereof, such as by a player of the gaming machine. When depressed or pushed by a user, the push-button lens cap
24
is arranged to activate/actuate the electrical switch
34
. Leads extend from the electrical switch
34
, and wires may be connected to the leads and extend to another device, whereby the signal from the electrical switch
34
is used as an input to that device.
The components and construction of the push-button electrical switch
20
will now be described in detail. As illustrated in
FIG. 2
, the body
26
serves a supporting/housing function and includes a wall having inner and outer surfaces. In one embodiment, the body
26
is generally tubular and has a top or proximal end
36
and a bottom or distal end
38
. A passage
40
extends through the body
26
. As illustrated, at its top end
36
, the body
26
is generally square, thus defining a generally square periphery of the passage
40
. The body
26
may have a variety of other shapes at this location, such as round or rectangular. Preferably, the bottom end of
38
of the body
26
is generally cylindrical, thus defining a generally circular periphery of the passage
40
at that location.
In one or more embodiments, an outer surface of the body
26
is threaded at its bottom end
38
. The threads extend upwardly towards the top end
36
. The threads are adapted to accept mating threads on the lock nut
30
.
Referring to FIGS.
3
(
a
) and
3
(
b
), the body
26
defines an upper cavity
42
for accepting at least a portion of the push-button lens cap
24
. The upper cavity
42
forms a portion of the passage
40
through the body
26
. As illustrated, when the push-button lens cap
24
is generally square in peripheral shape, so is the upper cavity
42
. As described above, the body
26
defines a periphery around the upper cavity
42
which is also generally square. As illustrated, the body
26
includes an outwardly extending flange
44
in this location. As noted above, the push-button lens cap
24
may be other than square, in which case the body
26
at this location is as well, for example round or rectangular.
A middle cavity
46
is positioned below the upper cavity
42
and also forms a portion of the passage
40
. The middle cavity
46
is preferably cylindrical in shape, and has a diameter which is less than the maximum dimension of the upper cavity
42
. As a result of the change in size and shape between the upper and middle cavities
42
,
46
, a ledge
48
is defined. As detailed below, the ledge
48
serves as a stop to limit the travel of the push-button lens cap
24
downwardly into the body
26
, and serves as a support for a spring.
A lower cavity
50
is positioned below the middle cavity
46
and also forms a portion of the passage
40
. The lower cavity
50
is also preferably generally cylindrical in shape. As illustrated, a stop extends inwardly dividing at least a portion of the middle and lower cavities
46
,
50
. Referring to FIG.
3
(
b
), the stop comprises four wall or stop segments
51
.
As described above, a push-button lens cap
24
is associated with the body
26
, and preferably is located at the top end
36
thereof. At least a portion of the push-button lens cap
24
is adapted to extend from the top end
36
of the body
26
for engagement by a user. Referring to
FIG. 2
, the push-button lens cap
24
comprises a generally square member having a top surface and one or more sides or members extending downwardly therefrom. The push-button lens cap
24
may have a variety of other shapes, including rectangular and circular.
The push-button lens cap
24
is associated with an actuator
52
. The actuator
52
has a first end shaped to accept the push-button lens cap
24
there over. When the push-button lens cap
24
is square, preferably so is the first end of the actuator. Likewise, when the push-button lens cap
24
has other shapes such as rectangular or circular, the first end of the actuator
52
may be as well. Notably, the first end of the actuator
52
and the push-button lens cap
24
need not be the same shape, as long as the connecting function between the two is facilitated. As illustrated, one or more tabs
53
are located on the outside of the first end of the actuator
52
for use in securing the push-button lens cap
24
to the actuator
52
.
The actuator
52
has a generally cylindrical main portion adapted to fit within the middle cavity
46
of the body
26
. Preferably, three legs
54
a,b,c,
extend downwardly from the periphery of the main portion of the actuator
52
in a direction opposite its first end. A pair of the legs
54
a
,
54
c
are preferably located about 180 degrees apart. The third leg
54
b
is positioned there between. As illustrated, the third leg
54
b
is preferably located nearer one of the legs
54
c
than the other of the legs
54
a.
The opposing legs
54
a
,
54
c
each have a catch
56
extending outwardly therefrom. Preferably, each catch
56
extends in a direction generally radially out in a direction perpendicular to an axis extending through the actuator. Referring to
FIG. 1
, when the actuator
52
is positioned in the body
26
, the legs
54
a,b,c,
extend through spaces between the stop segments
51
of the body
26
. When so positioned, the catches
56
engage a lower rim of the body
26
, preventing further upward movement of the actuator
52
.
A foot
58
is located on the end of the third leg
54
b
. As described in more detail below, lie foot
58
is adapted to engage a button of the electrical switch
34
for actuating the switch. As illustrated, the Riot
58
extends radially inward from the third leg
54
b.
A spring
60
is positioned inside of the body
26
and engages both the body
26
and the actuator
52
. In a preferred embodiment, the spring
60
is a helical spring. A first end of the spring
60
rests against the top surface of the stop segments
51
of the body
26
. The second end of the spring
60
is positioned within the actuator
52
and rests against a stop
61
therein. So arranged, the spring
60
has the natural tendency to urge the actuator
52
upwardly to the point where further upward travel is limited by the catches
56
. The urging of the actuator
52
upwardly also urges the push-button lens cap
24
attached thereto upwardly. When pressed by a user, the push-button lens cap
24
moves the actuator
52
downwardly against the biasing force of the spring
60
, compressing the spring.
The lamp/switch mount
32
is connected to the body
26
at its bottom end
38
. The lamp/switch mount
32
will now be described in detail with reference to FIG.
4
. The lamp/switch mount
32
has a generally disc-shaped main portion
62
. The main portion
62
has three cut-out areas
64
a,b,c
permitting passage of the legs
54
a,b,c
of the actuator
52
there through.
A passage
66
extends generally centrally through (i.e. along a central axis extending generally perpendicular to a plane in which the main portion
62
extends) the main portion
62
. A lamp stand
68
extends upwardly from a top surface of the main portion
62
and downwardly from a lower surface of the main portion, defining a generally lower closed end. In general, the lamp stand
68
forms extended portions of the passage
66
for accepting therein a lamp
70
(see FIG.
2
). First and second contacts
72
a,b
are also located in the passage
66
. The first and second contacts
72
a,b
contact leads or contacts on the lamp
70
. The contacts
72
a,b
extend through the lower closed end of the lamp stand
68
for connection to appropriate power wires for powering the lamp.
A switch mount
74
extends below the main portion
62
of the lamp/switch mount
32
. The switch mount
74
is offset from the central axis. In one embodiment, the switch mount
74
extends from the lamp stand
68
. The switch mount
74
includes first and second spaced pins
76
a,b.
A lock
78
extends downwardly from the main portion
62
. The lock
78
is spaced apart from the pins
76
a,b,
defining a space in which the electrical switch
34
may be located.
Referring to
FIG. 2
, the electrical switch
34
has a generally closed housing
80
. The electrical switch
34
may have a variety of shapes and configurations. As illustrated, the housing
80
is generally rectangular. First and second passages
82
a
,
82
b
extend through the housing
80
from side to side. The passages
82
a,b
are adapted to accept the first and second pins
76
a
,
76
b
of the lamp/switch mount
32
.
A button
84
extends upwardly from a top surface of the housing
80
. The button
84
preferably actuates an electrical switch within the electrical switch
34
. In one embodiment, the electrical switch
34
is a two-position switch. The workings of such electrical switches
34
are well known. As is common in such a two-position electrical switch
34
, the electrical switch
34
includes three leads or contacts
86
a,b,c.
The position of the electrical switch
34
determines which of the leads are “hot” (one being for ground).
Referring to
FIG. 5
, when the electrical switch
34
is mounted to the lamp/switch mount
32
the pins
76
a,b
extend into the passages
82
a,b.
The lock
78
presses against the opposite side of the housing
80
of the electrical switch
34
, maintaining the pins
76
a,b
in engagement with the passages
82
a,b,
securely mounting the electrical switch
34
.
When so mounted, the foot
58
of the second leg
54
b
of the actuator
52
is positioned adjacent the button
84
of the electrical switch
34
. When a user depresses the push-button lens cap
24
, the actuator is moved downwardly, causing the foot
58
to engage the switch button
84
. This actuates the electrical switch
34
.
Most importantly, in accordance with the invention there is provided an advantageous mounting arrangement for removably connecting the lamp/switch mount
32
to the body
26
. Referring to FIGS.
3
(
a
) and
3
(
b
), first and second latches
88
,
90
extend from the bottom end
38
of the body
26
. The latches
88
,
90
extend from the stop segments
51
of the body
26
. Each latch
88
,
90
generally comprises a member extending outwardly from the stop segment, and includes a catch. As illustrated, the latches
88
,
90
are positioned generally 180 degrees apart, with the catches facing generally in the same direction.
The lamp/switch mount
32
includes a passage
92
through the main portion
62
. The passage
92
accepts the latch
90
there through. A cut-out or recess
94
is provided in the periphery of the main portion
62
of the lamp/switch mount
32
.
Referring to FIG.
3
(
a
), the lamp/switch mount
32
is arranged to be mounted in abutting relationship to the stop segments
51
at the bottom end
38
of the body
26
. The top surface of the main portion
62
of the lamp/switch mount
32
is abutted against the lower surface of the stop segments
51
of the body
26
. In this position, the latch
90
extends through the passage
92
in the lamp/switch mount
32
, with the catch of the latch
90
engaging the lower portion of the main portion
62
of the lamp/switch mount
32
. At the same time, the latch
88
extends along the cut-out area
94
in the main portion
62
of the lamp/switch mount
32
, with the catch thereof also engaging the lower portion of the main portion
62
of the lamp/switch mount
32
.
Preferably, as illustrated in FIG.
3
(
a
), the latches
88
,
90
are arranged to press the lamp/switch mount
32
both upwardly against the stop segments
51
, and radially outwardly against the inside wall of the body
26
at its bottom end
38
. Importantly, the latches
88
,
90
are slightly flexible, permitting a user to bend them out of engagement with the lamp/switch mount
32
, thereby permitting the lamp/switch mount
32
to be removed from engagement with the body
26
.
In one or more other embodiments, other means may be provided for removably securing the lamp/switch mount
32
to the body
26
. Preferably, the securing means includes at least one member which is accessible by a user for manipulation in unlocking or removing the lamp/switch mount
32
from the body
26
. There may be only a single latch or more than one latch. The latch(es) may engage the lamp/switch mount
32
in a variety of manners. For example, the lamp/switch mount
32
need not include passages or cutout areas. The lamp/switch mount
32
may include a trough in the lower surface or in a side surface for engagement by a portion (such as a catch) of the latch(es). In one embodiment, a threaded rod may extend from the body
26
and through a passage/slot in the lamp/switch mount
32
. A nut may be threaded onto the rod to engage the lamp/switch mount
32
with the body
26
.
In one embodiment, the latches
88
,
90
may extend form the wall forming the body
26
instead of or in addition to the stop segments
51
. In another embodiment, rotating lock members may be associated with the body
26
and moved into a locking position when the lamp/switch mount
32
is pressed into engagement therewith, and rotated out of the locking position to permit removal/disconnection of the lamp/switch mount
32
from the body
26
. In general, it is desired that a release for the locking mechanism be accessible to the user.
The various components of the push-button electrical switch
20
may be constructed from a wide range of materials. In one embodiment, the push-button lens cap
24
, actuator
52
, body
26
, adapter
28
, lock nut
30
, and lamp/switch mount
32
comprise plastic or a similar material conveniently constructed in a molding or extrusion process. The contacts
72
a
,
72
b
and spring
60
preferably comprise metal members. In one or more embodiments, the various components may have a variety of colors.
In one embodiment of the invention, at least a portion of the body
26
around the push-button lens cap
24
is arranged to illuminate or be illuminated. In this manner, the location of the push-button lens cap
24
may be easily identified by a user. In a preferred embodiment, the body
26
is constructed from a transparent or generally transparent material, such as clear plastic, instead of traditional black polypropylene. Light emitted by the lamp
70
passes through the body
26
, thereby illuminating the body
26
, including the peripheral portion thereof at the top end
36
around the push-button lens cap
24
.
In one embodiment, to provide significant contrast between the push-button lens cap
24
and the body
26
, the push-button lens cap
24
is arranged to generally not transmit light emitted by the lamp
70
. In one embodiment, the push-button lens cap
24
may be constructed of an opaque material. In another embodiment, a shield, such as plastic plate, may be located within the push-button lens cap
24
. In this embodiment, the push-button lens cap
24
is generally not illuminated, but the surrounding body
26
is, whereby the illuminated body
26
generally serves to identify the extent/location of the push-button lens cap
24
. In a preferred embodiment, as illustrated in
FIG. 2
, a legend plate
96
is located inside of the push-button lens cap
24
. The legend plate
96
may have lettering printed thereon which is readable through the push-button lens cap
24
. For example, the legend plate
96
may be printed with “deal/draw,” “bet one” or other words, numbers or symbols. In one embodiment, the legend plate
96
permits light illuminated by the lamp
70
to pass there through to render the lettering or other printing more visible. For example, the legend plate
96
may be a plastic plate of any of a variety of colors (even clear) having printing, such as black or other colored lettering.
In accordance with another aspect of the invention, the push-button electrical switch
20
is arranged to divert or ground electro-static discharge (ESD). In one or more embodiments of the invention, one or more of the components of the push-button electrical switch
20
are adapted to conduct electrical energy to the housing
22
of the gaming machine or other support structure or remote location, and away from the circuitry of the lamp
70
and electrical switch
34
.
In one embodiment, as illustrated in
FIG. 5
, a path of electrical conduction P is defined from an external portion of the push-button electrical switch
20
to the housing
22
or other grounding element. In one or more embodiments, this pathway is defined by an electrically conductive material located in the push-button electrical switch
20
. In one embodiment, The body
26
, adapter
28
, and/or lock nut
30
are constructed from plastic having a conductive carbon material
96
interspersed therein (see FIGS.
3
A and
5
). The interspersed conductive carbon
96
defines a pathway through the components the housing
22
or other ground. Preferably, sufficient conductive carbon is provided that the path of least resistance to the electrical energy is defined through the component to ground rather than through the component to the electrical switch
34
or lamp
70
, and thereon to the associated circuitry.
It will be appreciated that in order
10
provide an effective pathway P to ground, the housing
22
or other supporting structure may need to be specially configured. In one embodiment, the housing
22
may comprise a metal panel which is painted (such as powder coated). In such an embodiment, it is preferred that an area of contact be provided between the body
26
, adapter
28
, lock nut
30
or other component of the push-button electrical switch
20
directly with the metal of the housing
22
.
In one embodiment, a metal strip or the like may be connected to the push-button electrical switch
20
, such as sandwiched between the adapter
28
and housing
22
or lock nut
30
and housing
22
, with the metal strip extending to ground.
In another embodiment, the pathway P through the push-button electrical switch
20
to ground may comprise other than dispersed particles
96
. In one embodiment, a wire may be embedded in the body
26
and extend from a top outer surface thereof to an contact with ground, such as the interface with the housing
22
. Other interspersed materials may be used. An advantage of the interspersed material is that the location or proximity of the user's touch or approach to the push-button electrical switch
20
need not then coincide with a specific location of the path to ground (as in the case of an embedded wire), since multiple paths to ground are provided.
In other embodiments, a layer of conductive material may be located on the one or more components of the push-button electrical switch
20
. For example, a thin layer of conductive metal may be deposited on the exterior of the body
26
.
In one embodiment, the push-button lens cap
24
may be conductive. In such event, it is desired that the actuator
52
be insulating so that electrical energy is transferred from the push-button lens cap
24
through the body
26
to ground, and not to the switch/lamp circuits.
Assembly and use of the push-button electrical switch
20
of the invention will now be described. Referring to
FIG. 2
, the lamp
70
is installed into the lamp/switch mount
32
along with the contacts
72
a,b.
The electrical switch
34
is connected to the lamp/switch mount
32
.
The push-button lens cap
24
is connected to the actuator
52
. The spring
60
is inserted into the top end
36
of the body
26
and the actuator
52
is guided over the top end of the spring. The actuator
52
is pressed downwardly, compressing the spring
60
until the catches
56
of the legs
54
a
,
54
c
of the actuator
52
engage the bottom end
38
of the body
26
.
The lamp/switch mount
32
is then connected to the body
26
. As described above, the lamp/switch mount
32
is aligned with the legs
54
a,b,c
and latches
88
,
90
and pressed upwardly. The legs
54
a,b,c
extend through the recesses
64
a,b,c
in the lamp/switch mount
32
. The latch
90
extends through the passage
92
, and the latch
88
extends along the cut-out
94
. Upon further upward movement, the catches on the latches
88
,
90
extend over the bottom surface of the main portion
62
of the lamp/switch mount
32
, locking it to the body
26
.
The push-button electrical switch
20
may be conveniently mounted to the housing
22
. First, the adapter
28
is extended over the bottom end
38
of the body
26
and moved upwardly as far as possible. Next, the bottom end
38
of the body
26
is passed through an aperture in the housing
22
until the adapter
28
rests upon or abuts the housing
22
. The locking nut
30
is then engaged with the threads on the outer surface of the body
26
from the bottom end
38
. The locking nut
30
is threaded upwardly until it engages the housing
22
.
Appropriate wiring (not shown) is attached to the contacts
72
a
,
72
b
for providing power to the lamp
70
. Appropriate wiring (not shown) is also attached to the leads
86
a,b,c
of the electrical switch
34
.
In use, a user depresses the push-button lens cap
24
. The push-button lens cap
24
moves the actuator
52
downwardly against the force of the spring
60
. Sufficient downward movement causes the foot
58
of the leg
54
b
to engage the switch button
84
, actuating the electrical switch
34
. Upon release of the user-applied pressure or force, the spring
60
moves the actuator
52
and push-button lens cap
24
upwardly.
A significant advantage of the push-button electrical switch
20
is that an electro-static discharge (ESD) from the player is routed away from the circuitry of the push-button electrical switch
20
, avoiding many problems. In accordance with the invention, when a player touches (or comes sufficient close to the push-button electrical switch
20
that a discharge may arc through the air space and bridge to the switch) the push-button electrical switch
20
, the discharged electrical energy is routed to the housing
22
or a remote location, grounding the discharge. In the preferred embodiment, the discharged is routed through the conductive material in the body
26
, adapter
28
and/or lock nut
30
to the housing
22
. This path routes the electrical energy away from the lamp circuit or the switch circuit.
In accordance with the invention, a push-button electrical switch
20
is provided which is simple to assemble and disassemble. In particular, replacement of the lamp
70
is facilitated. In the event the lamp
70
burns out and needs replacing, the lamp/switch mount
32
is easily disengaged from the body
26
, providing access to the lamp
70
for replacement. In order to disengage the lamp/switch mount
32
, a user need only bias the catches of the latches
88
,
90
out of engagement with the lamp/switch mount
32
. Then, the user may move the lamp/switch mount
32
downwardly with respect to the body
26
for access to the lamp
70
.
As another aspect of the invention, the push-button electrical switch
20
has an illuminated body
26
surrounding the user-actuatable push-button lens cap
24
. The illuminated body
26
aids in defining to a user the location of the push-button lens cap
24
.
It will be understood that the above described arrangements of apparatus and the method therefrom are merely illustrative of applications of the principles of this invention and many other embodiments and modifications may be made without departing from the spirit and scope of the invention as defined in the claims.
Claims
- 1. A push-button actuatable electrical switch comprising:a body having a first end and a second end and at least one stop extending into an interior area of said body between said first and second ends; a first and a second latch extending outwardly from said at least one stop in a direction opposite said first end, said first and second latches spaced from one another and each including a catch extending from a free end thereof opposite a connection thereof to said at least one stop; an actuator associated with said body; a push-button mounted to said actuator and extending from said first end of said body; a switch, said switch having a switch button for activating said switch; and a mount supporting a lamp and said switch, said mount including at least one surface for engagement by said first and second latch for connecting said mount to said body in position such that movement of said actuator with said push-button causes said switch button to be activated.
- 2. The push-button actuatable electrical switch in accordance with claim 1 wherein said mount includes at least one passage through which one of said latches extends.
- 3. The push-button actuatable electrical switch in accordance with claim 1 wherein mount includes a periphery having a notch therein and said mount including a passage therethrough, said first latch extending through said notch and said second latch extending through said passage when said mount is connected to said body.
- 4. The push-button electrical switch in accordance with claim 1 wherein the catch of said first and second latches extend in generally the same direction.
- 5. The push-button actuatable electrical switch in accordance with claim 1 wherein said mount includes a main portion having a top surface and a bottom surface, said top surface abutting said at least one stop when connected to said body and said first and second latches engaging said bottom surface.
US Referenced Citations (18)