U.S. patent application number 11/708430 was filed with the patent office on 2007-09-20 for service chair and rotatable operators seat.
Invention is credited to Ronnie R. Davis.
Application Number | 20070216205 11/708430 |
Document ID | / |
Family ID | 38517046 |
Filed Date | 2007-09-20 |
United States Patent
Application |
20070216205 |
Kind Code |
A1 |
Davis; Ronnie R. |
September 20, 2007 |
Service chair and rotatable operators seat
Abstract
A service chair and rotatable operators seat which may be used
in such service applications as a barber chair, dentist chair or
the like, and includes a seat and backrest mounted on a shaft, with
an independently rotatable operators seat mounted on the shaft for
accessing a person in the chair. In a preferred embodiment the
operators seat is mounted on an air cylinder to facilitate a
vertical cushioning adjustment of the operator and the operators
seat is attached to the chair mount shaft by a telescoping seat
mount and seat mount extension. In another embodiment footrests are
provided on the seat mount and the operating seat is removable from
the seat mount cylinder or alternative support for application to a
conventional set of chair legs. In still another embodiment of the
invention the seat mount cylinder or alternative seat support and
cooperating telescoping footrest mount is provided with a roller to
contact the supporting surface and facilitate ease in rotatably
adjusting the operators seat with respect to the chair.
Inventors: |
Davis; Ronnie R.;
(Shreveport, LA) |
Correspondence
Address: |
John M. Harrison
2139 E. Bert Kouns
Shreveport
LA
71105
US
|
Family ID: |
38517046 |
Appl. No.: |
11/708430 |
Filed: |
February 20, 2007 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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60782855 |
Mar 17, 2006 |
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Current U.S.
Class: |
297/241 |
Current CPC
Class: |
A47C 1/06 20130101; A47C
1/08 20130101 |
Class at
Publication: |
297/241 |
International
Class: |
A47C 15/00 20060101
A47C015/00 |
Claims
1. A service chair comprising a chair base for resting on a
surface; a mount shaft extending from said chair base; a service
chair carried by said mount shaft; an operators seat mount
rotatably carried by said mount shaft beneath said service chair;
and an operators seat provided on said operators seat mount,
wherein said operators seat and said operators seat mount are
rotatably adjustable on said mount shaft with respect to said
service chair.
2. The service chair of claim 1 wherein said operators seat mount
comprises a seat mount element rotatably carried by said mount
shaft and a seat mount extension linearly adjustably carried by
said seat mount element for receiving said operators seat, wherein
said operators seat is adjustable and rotatable around said mount
shaft.
3. The service chair of claim 1 wherein said operators seat is
removably attached to said mount shaft.
4. The service chair of claim 2 wherein said operators seat is
removably attached to said seat mount extension.
5. The service chair of claim 3 comprising a chair leg mount for
removably receiving said operators seat and a plurality of wheels
provided on said chair leg mount for engaging the surface and
providing mobility for said operators seat and said chair leg
mount.
6. The service chair of claim 5 wherein said operators seat mount
comprises a seat mount element rotatably carried by said mount
shaft and a seat mount extension linearly adjustably carried by
said seat mount element for receiving said operators seat, wherein
said operators seat is adjustable and rotatable around said mount
shaft.
7. The service chair of claim 1 comprising an air cylinder provided
on said operators seat mount for receiving and cushioning said
operators seat and a roller provided on said air cylinder for
contacting the surface and enhancing rotation of said operators
chair around said service chair.
8. The service chair of claim 7 wherein said operators seat mount
comprises a seat mount element rotatably carried by said mount
shaft and a seat mount extension linearly adjustably carried by
said seat mount element for receiving said operators seat, wherein
said operators seat is adjustable and rotatable around said mount
shaft.
9. The service chair of claim 8 wherein said operators seat is
removably attached to said mount shaft.
10. The service chair of claim 9 comprising a chair leg mount for
removably receiving said operators seat and a plurality of wheels
provided on said chair leg mount for engaging the surface and
providing mobility for rotation of said operating seat and said
chair leg mount.
11. The service chair of claim 1 comprising a footrest provided on
said operators seat mount for receiving and resting the feet of an
operator seated on said operators seat.
12. The service chair of claim 11 wherein said operators seat mount
comprises a seat mount element rotatably carried by said mount
shaft and a seat mount extension linearly adjustably carried by
said seat mount element for receiving said operators seat, wherein
said operators seat is adjustable and rotatable around said mount
shaft.
13. The service chair of claim 12 comprising an air cylinder
provided on said operators seat mount for receiving and cushioning
said operators seat and a roller provided on said air cylinder for
contacting the surface and enhancing rotation of said operators
chair around said mount shaft.
14. A service chair and rotatable operators seat comprising a chair
base for placement on a surface; a mount shaft extending upwardly
from said chair base; a service chair rotatably carried by said
mount shaft; a seat mount rotatably carried by said mount shaft
beneath said service chair; a seat mount extension adjustably
engaging said seat mount; and an operators seat provided on said
seat mount, wherein said operators seat and said seat mount
extension are adjustable and rotatable with respect to said seat
mount and said service chair.
15. The service chair of claim 14 wherein said operators seat is
removably attached to said mount shaft.
16. The service chair of claim 15 comprising a chair leg mount for
removably receiving said operators seat and a plurality of wheels
provided on said chair leg mount for engaging the surface and
providing mobility for said operators seat and said chair leg
mount.
17. The service chair of claim 14 comprising an air cylinder
provided on said operators seat mount for receiving and cushioning
said operators seat and a roller provided on said air cylinder for
contacting the surface and enhancing rotation of said operators
chair around said mount shaft.
18. The rotatable service chair of claim 14 comprising at least one
footrest provided on said operators seat mount for receiving and
resting the feet of an operator seated on said operators seat.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of and incorporates by
reference U.S. Provisional Application Ser. No. 60/782,855, filed
Mar. 17, 2006.
SUMMARY OF THE INVENTION
[0002] This invention relates to service chairs such as dental and
barber chairs and more particularly, to a service chair which is
characterized in a first preferred embodiment by a fixed or
rotatable chair having a backrest and footrest for receiving a
person in seated position and an operators seat rotatably attached
to the chair for supporting an operator and facilitating
positioning of the operator, typically in a 360-degree circle,
around the service chair. In a preferred embodiment of the
invention the operators chair is characterized by an adjustable
seat mount and seat mount extension combination which receives a
seat mount air cylinder carrying the operators seat to facilitate
vertical adjustment and cushioning of the operators seat during
use. A roller may also be provided at the bottom end of the seat
mount cylinder or on a wheeled support extending from the cylinder,
to better facilitate rotation of the operators seat around the
service chair. In another preferred embodiment of the invention the
operators seat may be telescopically mounted on a seat support and
wheel mount fitted with a wheel at the bottom end for the same
purpose. A pair of footrests may also be provided on the seat mount
for additional comfort of the operator when the operator is seated
on the operators seat.
BRIEF DESCRIPTION OF THE DRAWINGS
[0003] The invention will be better understood by reference to the
accompanying drawings, wherein:
[0004] FIG. 1 is a perspective view of a first preferred embodiment
of the service chair and rotatable operator's seat of this
invention;
[0005] FIG. 2 is a top view of the service chair and rotatable
operators seat illustrated in FIG. 1, more particularly
illustrating a preferred 360-degree rotation of the operators seat
with respect to the service chair;
[0006] FIG. 3 is a perspective view, partially exploded, of the
rotatable operators seat, with the service chair removed for
brevity and the operators seat adjusted outwardly from the chair
base;
[0007] FIG. 4 is a perspective view of the rotatable operators seat
illustrated in FIG. 3, more particularly illustrating inward
adjustment of the operators seat toward the chair base;
[0008] FIG. 5 is a perspective view of a preferred embodiment of
the operators seat removed from the service chair assembly and
positioned on a chair leg mount having multiple chair rollers, such
that the operators seat can be used in conventional fashion as an
office chair or the like;
[0009] FIG. 6 is a perspective view of another preferred
embodiment, of the service chair and rotatable operators seat of
this invention;
[0010] FIG. 7 is a side elevation of the service chair and
rotatable operating seat illustrated in FIG. 6, with the service
chair removed for brevity and the operators seat adjusted inwardly;
and
[0011] FIG. 8 is a side view of the rotatable operators seat
illustrated in FIG. 7, more particularly illustrating adjustment of
the operators seat in a desired extended configuration outwardly of
the chair base.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0012] Referring initially to FIGS. 1 and 2 of the drawings, in a
first preferred embodiment the fixed or rotatable service chair and
rotatable operators seat of this invention (hereinafter called
"service chair") is generally illustrated by reference numeral 1.
The service chair 1 includes a chair base 2 of selected design,
resting on or mounted to a floor or surface 11 and typically having
a base pedestal 3, with a mount shaft 4 extending upwardly
vertically through the base pedestal 3 and a shaft adjusting lever
5 provided on the base pedestal 3. The shaft adjusting lever 5 is
typically conventional in design and operates by foot action to
raise and lower the mount shaft 4 with respect to the chair base 2
and the base pedestal 3, in conventional fashion. A seat mount or
base 6 is typically provided on the opposite end of the mount shaft
4 from the base pedestal 3 and carries a seat 7, typically having a
seat pad 7a and fitted with arm rests 8. The arm rests 8 are
typically attached to the seat 7 by means of arm rest mounts 8a as
further illustrated in FIG. 1. A backrest 9 extends from the rear
portion of the seat 7 as illustrated and is typically secured in
place by means of a backrest frame 9a. Frame adjusting pins 10 may
be provided in the seat 7 to interact with the backrest frame 9a
and adjust the backrest 9 into selected angular configuration with
respect to the seat 7. Alternative seat 7 and backrest 9 designs
can be used in the invention according to the knowledge of those
skilled in the art.
[0013] A footrest mount 12 is typically provided on the seat 7 and
extends downwardly and forwardly of the seat 7, as further
illustrated in FIG. 1. A footrest bar 13 may be telescopically or
otherwise adjustably attached to the footrest mount 12 and is
typically provided with multiple bar openings 13a, which
selectively register with a corresponding mount opening 12a in the
footrest mount 12 to receive a footrest pin 14 and slidably adjust
the footrest bar 13 and a footrest 15 attached to the footrest bar
13, with respect to the footrest mount 12.
[0014] A seat mount collar 18 is rotatably attached to the mount
shaft 4 above the base pedestal 3 in any convenient fashion, but
typically by means of a bearing or bushing (not illustrated),
according to the knowledge of those skilled in the art. One end of
a seat mount 17 is welded or otherwise secured to the seat mount
collar 18 and the seat mount 17 extends outwardly, typically
horizontally or slightly upwardly from the mount shaft 4 above the
floor or surface 11, to telescopically receive one end of a seat
mount extension 19, having transverse extension openings 20
therein. A seat mount pin 17a extends through a seat mount pin
opening 17b, illustrated in FIG. 4, provided in the seat mount 17
and through a selected one of the extension openings 20 in the seat
mount extension 19, to facilitate linear adjustment of the seat
mount extension 19 with respect to the seat mount 17 in telescopic
fashion, as illustrated in FIGS. 3 and 4. The opposite end of the
seat mount extension 19 from the seat mount 17 is welded or
otherwise attached to a seat mount air cylinder 23 and a
corresponding wheel mount 25a, which is typically linearly
vertically aligned with the seat mount cylinder 23 and receives a
cylinder wheel 25 that touches the floor or surface 11 upon which
the chair base 2 is placed or mounted. A cylinder mount set screw
24 is typically provided in the seat mount extension 19 for
removably attaching the seat mount cylinder 23 and the underlying
wheel mount 25a to the seat mount extension 19. The upper end of
the seat mount cylinder 23 receives a seat mount bar 26, which is
typically vertically adjustably positioned in the seat mount
cylinder 23 by means of a seat adjusting handle 27, as further
illustrated in FIG. 1. An operators seat 29 of selected design is
positioned on the upper end of the seat mount bar 26 and is
typically adjustably tilted forwardly or rearwardly by manipulation
of a seat pivot handle 28, as further illustrated in FIG. 1 of the
drawings. A pair of extension footrests 21 may be mounted on the
seat mount extension 19 in any convenient fashion, but may be
typically pivotally or fixed in place by operation of a footrest
mount 21a, illustrated in FIGS. 7 and 8 of the drawings.
[0015] As further illustrated in FIGS. 1 and 2 of the drawings, it
will be appreciated that the operators seat 29 may, in a preferred
embodiment, rotate in a 360-degree circle around the service chair
1, along with the seat mount extension 19 and the attached seat
mount 17. The rotation is typically a full 360-degrees around these
elements under circumstances where the footrest 15 is adjusted
upwardly with respect to the footrest mount 12 by manipulation of
the footrest pin 14, for rotational clearance, as illustrated in
FIG. 1 of the drawings. Three illustrative, relative positions of
the operators seat 29 with respect to the service chair 1 are
illustrated in FIG. 2, two of which positions are in illustrated in
phantom.
[0016] Referring to FIG. 5 of the drawings, it will be appreciated
that in a preferred embodiment the operators seat 29 can be removed
from the seat mount cylinder 23 by loosening the seat adjustment
handle 27 and fitted into a chair leg mount 33, provided with
multiple, outwardly-extending chair legs 31 having chair leg
rollers 32, as illustrated. Accordingly, the operators seat 29 can
then be utilized as an office chair or the like, when configured as
illustrated in FIG. 5.
[0017] Referring now to FIGS. 6-8 of the drawings, in another
preferred embodiment of the invention the service chair 1 is
characterized by a seat mount 17, having a seat mount bracket 16
that fits on or is shaped integrally with, the seat mount collar
18, which is rotatably mounted on the mount shaft 4 as described
with respect to the embodiment in FIG. 1 of the drawings. The seat
mount bracket 16 is typically provided with a seat mount bracket
pin 16a that extends through the operating end of the seat mount 17
to secure the seat mount bracket 16 on the seat mount collar 18 and
facilitate up to and including a 360-degree rotation of the seat
mount 17 around the service chair, and the chair base 2. The
opposite end of the seat mount 17 from the seat mount bracket 16
receives the seat mount extension 19 in telescopic fashion, as
illustrated in FIG. 1 and the seat mount pin 17a is designed to
facilitate positioning of the operating seat 29 in a desired
position with respect to the service chair 1, as heretofore
described. The extending end of the seat mount extension 19 is
further typically fitted with an extension clevis 22, having a
clevis pin 22a that extends through the arms of the extension
clevis 22 and through a corresponding opening (not illustrated)
provided in the seat support 30, to mount the seat support 30 on
the extending end of the seat mount extension 19, as further
illustrated in FIGS. 6-8. The operators seat 29 is mounted on the
upper end of the seat support 30 in the same manner as illustrated
in FIG. 1 with respect to the seat mount cylinder 23, and a seat
adjustment handle 27 is provided to facilitate removing the
operators seat 29 from the seat support 30 or adjusting upward and
downward movement of the operators seat 29. The wheel mount 25a is
typically telescopically provided in the seat support 30 and is
adjustably positioned therein by operation of the transverse wheel
mount openings 25b and a corresponding aligned opening (not
illustrated) provided in the seat support 30, using a seat support
pin 30a, as illustrated. A cylinder wheel 25 may also be provided
at the base of the wheel mount 25a to contact the floor or surface
11 and enhance rotation of the operators seat 29 around the service
chair 1, as heretofore described.
[0018] It will be appreciated by those skilled in the art that the
service chair 1 of this invention, in all of the embodiments
illustrated in the drawings, may be fixed or rotatable and may
serve as a barber chair, dental chair, doctors chair or the like.
Up to and including 360-degree rotational access by an operator in
the operators seat 19, to a patient or customer seated in the chair
seat 7, is facilitated. The operator may be seated in the operators
seat 29 and may position himself or herself in any desired
orientation as illustrated in FIG. 2, with respect to the customer
or patient seated in the chair seat 7, to perform the necessary
service. Furthermore, the adjustment features in the service chair
1 and operators seat 29 facilitate quick and easy access to the
patient or customer by telescopic adjustment of the seat mount
extension 19 in the seat mount 17, as well as raising and lowering
the operators seat 29 with respect to either the seat mount
cylinder 23 illustrated in FIG. 1 or the seat support 30
illustrated in FIGS. 6-8. Additional adjustment of the footrest 15
upwardly or downwardly by manipulation of the footrest pin 14 may
be effected for the comfort of a patient or customer seated in the
chair seat 7.
[0019] It will be further appreciated by those skilled in the art
that the design of the seat mount collar 18, which may include a
bearing, bushing or other friction-reducing mechanism, may be
optional according to the knowledge of those skilled in the art to
facilitate free and easy rotation of the seat mount 17, seat mount
extension 19 and the operators seat 29, typically in a 360-degree
path around the service chair seat 1. This rotation is aided by
operation of the cylinder wheel 25, which rides on the floor or
surface 11, as heretofore described.
[0020] While the preferred embodiments of the invention have been
described above, it will be further recognized and understood that
various modifications may be made in the invention and the appended
claims are intended to cover all such modifications which may fall
within the spirit and scope of the invention.
* * * * *