U.S. patent number 3,768,859 [Application Number 05/103,412] was granted by the patent office on 1973-10-30 for chair.
This patent grant is currently assigned to Mohasco Industries, Inc.. Invention is credited to Walter Clark Rogers, Jr., Morton Snitzer.
United States Patent |
3,768,859 |
Rogers, Jr. , et
al. |
October 30, 1973 |
CHAIR
Abstract
A footrest equipped rocker-recliner chair having a linkage
mechanism actuable to, alternatively, lock the reclining mechanism
of the chair in non-reclining position with the footrest collapsed
wherein the chair is capable of to and fro rocking movement, or
release the reclining mechanism to allow the chair to be reclined,
the footrest extended, and to and fro rocking movement of the chair
blocked.
Inventors: |
Rogers, Jr.; Walter Clark (High
Point, NC), Snitzer; Morton (Rocky Mount, NC) |
Assignee: |
Mohasco Industries, Inc.
(Amsterdam, NY)
|
Family
ID: |
22295031 |
Appl.
No.: |
05/103,412 |
Filed: |
January 4, 1971 |
Current U.S.
Class: |
297/85L;
297/DIG.7; 297/69 |
Current CPC
Class: |
A47C
1/0355 (20130101); A47C 3/027 (20130101); Y10S
297/07 (20130101) |
Current International
Class: |
A47C
1/031 (20060101); A47C 1/038 (20060101); A47C
3/027 (20060101); A47C 3/02 (20060101); A47c
001/02 () |
Field of
Search: |
;297/DIG.7,85,69,271,270 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: McCall; James T.
Claims
Having thus described my invention, I claim:
1. A rocker-recliner chair including a base, a chair frame mounted
on said base carrying seat and back means for rocking and reclining
movement, a linkage assembly, said linkage assembly including means
actuable upon reclining movement of said chair frame to block
rocking movement of said chair, and including hand actuable means
to lock said chair in a non-reclining position and thereby block
reclining movement of said chair during rocking movement of said
chair said hand actuable means including a pair of links pivotally
interconnected between said seat means and said frame, said pair of
links constructed and arranged to form an over center locking means
upon actuation thereof to couple said seat means to said frame to
render said sead immovable relative to said frame, wherein said
pair of links includes a first L-shaped link and a second
substantially straight link.
2. A reclining chair including a chair frame comprising a pair of
side members, a linkage assembly carried on said chair frame,
movable footrest, seat, and back members carried on said linkage
assembly and movable from an upright position to a reclined
position, hand actuable means operatively connected between said
chair frame and linkage assembly to interfere with movement of said
linkage assembly relative to said chair frame, said hand actuable
means operable to lock said chair in a non-reclined position and
including a pair of links pivotally interconnected between said
seat member and said frame, said pair of links constructed and
arranged to form an over center locking means upon actuation
thereof to couple said seat member to said frame to render said
seat immovable relative to said frame, wherein said pair of links
includes a first L-shaped link and a second substantially straight
link.
3. The invention of claim 1 wherein said first and second links are
pivoted to each other.
4. The invention of claim 3 wherein said second link carries stop
means intermediate its ends, said stop means abutting a portion of
said first link when said first and second links are in operative
position to block reclining movement of said chair.
5. The invention of claim 4 wherein one of said pair of links is
fixedly attached to a shaft extending through said chair frame, and
including handle means carried on said shaft for hand manipulation
of said shaft to thereby engage said locking means.
6. The invention of claim 2 wherein said first and second links are
pivoted to each other.
7. The invention of claim 6 wherein said second link carries stop
means intermediate its ends, said stop means abutting a portion of
said first link when said first and second link are in operative
position to block reclining movement of said chair.
8. The invention of claim 7 wherein one of said pair of links is
fixedly attached to a shaft extending through said chair frame, and
including handle means carried on said shaft for hand manipulation
of said shaft to thereby engage said locking means.
Description
The present invention relates to rocker-recliner chairs of the type
wherein the chair may function as a rocking chair or a reclining
chair and wherein, in each mode of operation, the other mode of
operation is blocked. That is, ideally a chair of this type
contains a suitable blocking mechanism to prevent the reclining
mode of operation when the chair is being used as a rocker, and
prevent the rocking mode of operation when the chair is moved to a
reclining position.
This invention, therefore, has as its principal object the
provision of a rocker-recliner having a well functioning and
effective mechanism which, in a first position, will block
reclining movement of the chair and allow rocking movement of the
chair, and in a second position will allow reclining movement of
the chair and block rocking movement.
The above and further objects, and the entire scope of
applicability of the present invention, will become apparent from
the detailed description herein given. It should be understood,
however, that the instant detailed description and illustrations
are given by way of illustration only, and, while indicating a
preferred embodiment of the invention, it is not given by way of
limitation, since various changes and modifications within the
sprit and scope of the invention will become apparent to those
skilled in the art from such detailed description.
FIG. 1 is a view of the rocker-recliner of the present invention
showing the chair in the normal upright "at rest" position wherein
it is neither rocked or reclined. The view is taken along a plane
paralleling the front to back longitudinal centerline of the chair
and looking in a direction from the longitudinal centerline of the
chair toward the right side of the chair.
FIG. 2 is a plan view of a portion of the structure shown in FIG.
1.
FIG. 3 is a view similar to FIG. 1 showing a portion of the
mechanism of FIG. 1 in a reclined, non-rocking position.
Those skilled in the art will appreciate that it is conventional in
the art to which this invention relates to provide each side of a
reclining chair or rocker-recliner with a linkage mechanism, each
of which is substantially a mirror image of the other and, keeping
this in mind, I illustrate and describe only the mechanism carried
at the right side of the chair, that is, the side of the chair
which would be at the right side of an occupant seated in the
chair.
The chair of the invention comprises the customary side frame
members such as the right side frame member 6 suitably mounted on
and connected to a platform base 7 through the medium of rocker
cams such as the cam 8.
Secured to the right side frame member is a main mounting bracket
12. A crank carrier link 13 is pivoted on the bracket 12 by means
of a pivot member 14. The forward end of the crank carrier link 13
rests on a stop 13a carried by the main mounting bracket 12. A bell
crank 16 is pivotally mounted on the crank carrier link 13 by means
of a pivot member 17, the bell crank 16, in turn, being pivotally
connected at its ends to a seat mounting link 20 and an ottoman
control link 21. The ottoman control link 21 controls, in a manner
hereinafter described, the movement of an ottoman or footrest
assembly generally indicated by an arrow 23 and carried at the
front portion of the chair and operatively connected to the linkage
assembly by a pair of ottoman links 25 and 26, which links are
pivotally connected to the crank 16 and seat mounting link 20,
respectively, by pivot members 25a and 26a.
The seat mounting link 20 extends rearwardly and upwardly, and its
rear end is pivotally connected to a back mounting link 28 by means
of a pivot member 29.
Intermediate its ends, the seat mounting link 20 is pivotally
connected by a pivot member 30 to a rear carrier link 31. The rear
carrier link 31 is pivotally connected by a pivot member 32, to the
forward end of a rear carrier arm 34 which, in turn, is pivotally
mounted on the main mounting bracket 12 by means of a pivot member
36. The rear carrier arm 34 has an upper forwardly extending
projection resting on a stud 38 secured to the main mounting
bracket 12.
A pin carrying sequence link 40 carrying a pin 41 is pivotally
connected to the main mounting bracket 12 by a pivot member 42. The
pin 41 cooperates with a slot formed in a lower extension of the
rear carrier link 31.
A downwardly extending arm of the aforementioned crank carrier link
13 is pivotally connected by a pivot member 44 to the forward end
of a connecting link 46, which link,46, has its rearward end
pivoted to a downwardly extending arm of the rear carrier arm 34 by
means of a pivot member 47.
A seat pivot plate 50 is rigidly secured to the seat mounting link
20. This plate 50 has an extension which extends downwardly and
rearwardly and at its lower end is connected to a seat drive link
52 by a pivot member 54. The seat drive link 52 has two arms and,
at the end of its forwardly extending arm, this link 52 is
pivotally connected to a crank member 55 by means of a pivot member
56. The crank member 55 is, in turn, pivoted to a torque plate 58
by a pivot member 60, the torque plate being secured to the main
mounting bracker 12 by fastening members 62 and 63.
The crank member 55, it will be noted, carries a pin 64 and extends
rearwardly (FIG. 1) from its pivotal connection 56 with the seat
drive link 52, and at its rear end makes an abrupt right angle turn
to extend from the right side linkage towards the left side linkage
(not shown). This angled portion is secured to a crank actuating
and connecting member 65 which extends across the space between the
right side linkage of FIG. 1 and the left side linkage (not shown),
where the crank actuator is connected to the left side linkage.
The crank actuator 65 extends through an opening in the right side
chair frame member and has a suitable handle 66 affixed thereto.
The crank actuator 65 does not extend through the left side frame
member.
The back mounting link 28 extends rearwardly from its pivotal
connection 29 to the seat mounting link 20. This mounting link 20
is pivotally connected by means of a pivot member 70 to a
downwardly and rearwardly extending back carrier link 72. The back
carrier link 72 is pivoted at its rear end to the main mounting
bracket 12 on a pivot member 74.
Pivotally connected to the back carrier link 72 on a pivot member
75 is a support blocking link 76. The blocking link 76 carries a
pin 78 at one end, which pin 78 cooperates with a slot formed in a
rocker control link 80 pivoted to the main mounting bracket 12 by
means of a pivot member 84.
At its hind end the control link 80 is pivoted by a pivot member 88
to a support link 90 which link 90 has a pivotal connection 92 to a
bracket 94 attached to the platform base 7.
The customary upholstered seat, foot, and back supports are
provided on the seat mounting link 20, the ottoman 23, and the back
mounting link 28, and the chair may be suitably upholstered as
desired.
As above mentioned, the chair is in the "at rest" position in FIG.
1. In this position, the footrest extending and seat and back
reclining linkage are locked against movement due to the fact that
in order for the chair to be reclined and the footrest extended it
is necessary for the seat mounting link 20 to move rearwardly and
the bell crank 16 and the rear carrier link 31 to rotate in a
clockwise direction about their pivots 17 and 32, respectively,
thereby lifting the ottoman link 25 to extend the ottoman structure
under control of the ottoman control link 21. It will be recalled,
however, that the seat mounting link 20 is rigidly secured to the
seat pivot plate 50. Thus, if the seat pivot plate 50 is rendered
immobile relative to the main mounting bracket 12, so too will the
seat mounting link 20 as well as the crank 16 and rear carrier link
31 be rendered immobile.
The seat pivot plate is rendered immobile relative to the main
mounting bracket 12 by means of an over-center lock actuated by the
handle 66 as now described.
When the chair is in an upright position the handle 66 is pushed
forward (counterclockwise in FIG. 1) as far as it will go. Such
movement causes the actuator rod 65 and crank member 55 to rotate
similarly counterclockwise about the pivot member 60. Such
counterclockwise movement of the crank member 55 imparts, through
the connecting pivot member 56, a counterclockwise rotational
movement to the drive link 52 about its pivotal connection 54 with
the seat pivot plate 50, such movement continuing until an
undersurface, shown as a notched undersurface, of the drive link 52
engages the stop member 64 carried on the crank member 55, thereby
preventing further counterclockwise movement of the handle 66. The
above described counterclockwise movement of the drive link 52
places the pivot member 54 and 56 in an overcenter orientation
relative to the pivot member 60, and, so long as the pivot members
54 and 56 remain so oriented relative to the pivot member 60, any
attempted rearward movement of the seat pivot plate 50 will be
prevented, since any rearward force applied to the pivot member 54
will not allow the drive link 52 to rotate clockwise about the
pivot member 60 until the pivots 54 and 56 are moved out of their
over-center orientation relative to the pivot member 60.
Thus, it will be appreciated that when the handle 66 is rotated
counterclockwise to the position of FIG. 1 the chair is prevented
from going into a reclining position, and so long as the handle is
not rotated clockwise from its FIG. 1 position the chair can be
rocked to and fro, as hereinafter described, with the footrest,
seat, and back maintaining their positions relative to each other
as shown in FIG. 1.
When it is desired to recline the chair from its FIG. 1 position,
it is merely necessary to grasp the handle 66 and rotate it
slightly clockwise from its FIG. 1 position to release the lock,
and thereupon apply the usual rearward force to the back of the
chair. Such action causes, initially, the pivot 56 to move
clockwise about the pivot 60 to release the over-center lock and
then, as the back pressure is applied, the seat mounting link 20
will shift rearwardly and cause the bell crank 16 and rear carrier
link 31 to rotate clockwise. This movement continues until the rear
carrier link has rotated a distance clockwise sufficient to cause a
surface 31a on the link 31 to engage a stop member 96 carried on
the seat mounting link 20, whereupon the chair is in what is
commonly termed its TV or intermediate reclining position. This
position, i.e., the TV position, is not shown in the drawings but
is similar to the position of FIG. 2 of U.S. Pat. No. 3,352,601
issued to Izchak Cycowicz on Nov. 14, 1967 for a chair, and which
disclosure is incorporated herein for a fuller understanding.
After reaching the TV position above described, the chair may then
be moved to what is commonly termed a full-recline position by
applying further rearward pressure against the back whereupon,
inter alia, the crank carrier link 13, the rear carrier arm 34, and
the sequence link 40 are caused to rotate clockwise about the
pivots 14, 36, and 42, respectively, until as the rear carrier link
31 rises with the forward end of the arm 31, holding action of the
slot formed in the rear carrier link 31 acting on the pin 41
carried by the sequence link 40, inhibits continued clockwise
rotation of the rear carrier arm 34, whereupon the linkage assembly
assumes the position of FIG. 3.
To return the chair from reclined position to its "at rest"
position of FIG. 1, the occupant may do so by a procedure the
reverse of that described above, and when the chair is in its
non-reclined upright position, the reclining linkage mechanism may
be locked by rotating the handle 66 counterclockwise until the
drive link 52 abuts the stop 64 as above described.
When it is desired to utilize the chair as a rocking chair,
starting with the chair in the FIG. 1 position, the chair occupant
may rock the chair by, for example, applying foot pressure against
the supporting floor surface and such action will tend to rock the
chair in the normal manner. The chair rocks by means of the
cooperating action of the rocker cams 8 on the base 7 and, as the
chair rocks, the linkage mechanism remains in the FIG. 1 position
with the exception that the links 76, 80, and 90 rotate about their
pivots 75, 84, and 88, respectively, with the pin 78 sliding in the
slot formed in the link 80, and, of course, since the handle
operated over-center lock is locked during such rocking motion,
there will be no tendency for the chair to open up toward the
reclined position.
During rocking movement of the chair it is necessary that the pin
78 be free to slide in the slot formed in the control link 80, and
with the mechanism in the FIG. 1 position, such cooperating action
of the pin 78 and the slot formed in the link 80 is possible.
Rocking action of the chair is blocked upon the reclining movement,
above described, due to the fact that as the chair reclines from
its FIG. 1 position, the back carrier link 72 rotates clockwise
about its pivot 74 carrying with it the pivot 75. Such clockwise
movement of the pivot 75 imparts to the locking link 76 a generally
clockwise movement to place the locking link 76 in such a position
that sliding movement of the pin 78 in the slot formed in the link
80 will be prevented. Thus when the chair is reclined, it is
blocked against rocking movement.
Although in the illustrated embodiment I have shown my invention in
connection with what is commonly termed a "lounger," that is, a
reclining chair of the type wherein the angle between the seat and
back changes during a portion of reclining movement, I wish it to
be understood that the invention would be equally applicable to a
chair of the "rester" type, that is, a chair of the type wherein
the back and seat are rigidly connected and wherein the angle
between the seat and back does not change during reclining
movement.
* * * * *