Chairs and seats – Back carries stored supplemental body support – Armrest movable from recess in back
Patent
1987-01-09
1988-08-09
Dorner, Kenneth J.
Chairs and seats
Back carries stored supplemental body support
Armrest movable from recess in back
272 72, 297130, A47C 1300
Patent
active
047623632
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to an exercise chair and more particularly a chair that can be converted into an exercise machine, e.g. a rowing machine.
BACKGROUND ART
There is known from GB No. 1133927 a chair which is convertible to a sculling machine. However, the conversion procedure is relatively complicated and the chair is relatively bulky and does not have an aesthetically pleasing appearance.
DISCLOSURE OF INVENTION
The present invention seeks to provide an exercise chair of pleasing appearance, which comprises only a relatively small number of component parts, and which can readily be converted from one configuration to another.
According to the present invention there is provided a chair which is convertible to an exercise machine characterised in that it comprises a front frame member of generally L-shaped cross-section having a vertical portion and a horizontal portion, and a substantially straight rear frame member which is pivotally connected to the end of the said horizontal portion remote from said vertical portion and is pivotable between a first position in which it constitutes the back of the chair and a second horizontal portion in which it constitutes an extension of said horizontal portion of the front frame member.
BRIEF DESCRIPTION OF DRAWINGS
Preferred embodiments of the present invention will now be described by way of example only with reference to the accompanying drawings, of which:
FIG. 1 is a side view of an exercise chair in accordance with a first embodiment of the present invention;
FIG. 2 is a front perspective view of the chair of FIG. 1;
FIG. 3 is a side view of the exercise chair of FIGS. 1 and 2 when opened out into the configuration of a rowing machine;
FIG. 4 is a perspective view of an exercise chair in accordance with a second embodiment of the present invention when opened out into the configuration of an exercise machine;
FIG. 5 is a perspective view of the chair of FIG. 4 when reassembled;
FIG. 6 is a perspective view of an exercise chair which is a modification of the second embodiment, similar to the view of FIG. 4;
FIG. 7 is a perspective view of part of an alternative modification of the second embodiment; and
FIG. 8 is an enlarged side view of the modification of FIG. 7.
MODES FOR CARRYING OUT THE INVENTION
Referring now to FIGS. 1 to 3 of the drawings, there is shown a chair 10 comprising two relatively-movable frame members 11, 12 connected together by hinges 13. The hinges may be arranged to be locked in an adjusted position. Frame member 11 comprises two parallel horizontal struts 20, two parallel vertical struts 21 and a further horizontal strut (not shown) interconnecting the tops of struts 21 and concealed by seat 30 in use as a chair, FIGS. 1 and 2. Frame member 12 comprises two elongate struts 23 interconnected at an intermediate point by a horizontal strut (not shown) concealed by seat 30 in use as a chair and interconnected at their ends remote from hinges 13 by a horizontal strut 32 located behind back rest 31 in use as a chair. Struts 23 are vertical in normal use as a chair and horizontal in use as a rowing machine, FIG. 3.
Back rest 31 is mounted on struts 32 by means of an arm 35 freely pivotally mounted at both ends.
Seat 30 is attached to the horizontal struts (not shown) of frame 11 and 12, e.g. by a snap-fitting arrangement. This serves to prevent or assist in preventing relative rotation of the frame members. The underside of seat 30 has attachment means for securing in a concealed manner two exercise springs 40 (one of which is shown in FIG. 3). The springs are concealed by side walls 37. The corners of the underside of seat 30 are each provided with a wheel which is grooved or flanged so as to be capable of riding on the rails formed by struts 20 and 23 in the rowing machine configuration of FIG. 3.
Two horizontal struts 24, 25 interconnect the struts 21. Strut 24 has two rearwardly-extending substantially semi-circular loops 26 and strut 25 has two similar forwardly-extending loops 27. The loops are shap
REFERENCES:
patent: 1750549 (1930-03-01), Thomson et al.
patent: 1982843 (1934-12-01), Traver
patent: 2131570 (1938-09-01), Riley
patent: 2191698 (1940-02-01), Painter
patent: 2714507 (1955-08-01), Goodrich
patent: 3473843 (1969-10-01), Hart
Boukus, Jr. Charles P.
Brown Peter R.
Dorner Kenneth J.
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