Patent Grant
6843527
1. Field
The invention is in the field of portable collapsing or folding rocking chairs and chaise lounges for use indoors and outdoors such as for camping and which chair may also function as a backpack, cart, wheelchair, or cot.
2. State of the Art
Portable collapsing rocking chairs of the type which have a flexible rectangular seat supported at opposite ends by oppositely inclined, diagonally disposed frames interconnected by a pair of upper and lower chains are well known. The frames of these chairs each typically have a pair of parallel elongate side members interconnected and held in a spaced relationship by at least one cross member, one frame nesting within the other. The pairs of upper and lower chains interconnect the respective side members intermediate the ends thereof to form what is called a saddle hinge which allows the chair to be oscillated or rocked since there is no fixed pivot between the respective frames. Likewise, wheeled carts, and wheeled chairs are well known.
In U.S. Pat. No. 4,118,064 issued to Robeson is disclosed a wooden rocking chair wherein the upper ends of the elongate side members and the ends of cross members of each frame are held together by means of interfitting wedge and groove connections which allow disassembly of the frames so as to form a compact bundle for transport or storage. A stool of similar construction is also disclosed.
In U.S. Pat. No. 1,969,313 issued to C. E. Meeker is disclosed a wooden rocking chair wherein the elongate side members and the cross members of each frame are held together by means of the upper end of each side member being tapered to mate with tubular sockets at the ends of the upper cross members. One frame also has a lower cross member pivotally and releasibly connected at respective ends thereof to the lower portion of one frame such that the chair can be disassembled and the lower cross member folded to form a compact bundle for transport or storage.
In U.S. Pat. No. 4,733,905 issued to Buickerood et al. is disclosed a two-wheeled, non-rocking chair which has four U-shaped tubular metal frame members which form a folding frame. The individual frame members pivot relative to one another so as to additionally form a wheeled cart with elevated handle, a carrier for elongate objects, or be collapsed into a more compact unit for storage.
In U.S. Pat. No. 4,487,345 issued to Pierce et al. is disclosed a backpack having a wooden frame, a pack, and shoulder straps, wherein the frame unfolds to form a reclining chair which also functions as a stand for holding the pack in an upright position. The chair does not oscillate nor rock and has fixed reclining positions.
In U.S. Pat. No. 3,828,992 issued to Cerchione is disclosed a backpack having a tubular metal folding frame, a pack, and shoulder straps, wherein the frame unfolds to form a sleeping cot with the pack stowed there below. The frame has two elongate sections hingedly connected together by a short section with a flexible sleeping surface stretched therebetween. When used as a backpack one elongate section to which the shoulder straps are connected fits against the back of the user with the other long section to which the pack is attached spaced from and parallel thereto, the two being interconnected by the short section over the top of the pack.
Various types of chaise lounges having a single elongate seat which supports person head to foot are also known but none having the construction and features of the present invention.
In accordance with the invention, a folding rocking chair and chaise lounge of the type having a pair of oppositely inclined, diagonally disposed frames, one frame being of such width as to nest one within the other with the frames interconnected at the sides thereof by a pair of upper and lower siderails. Each frame has a pair of elongate side members held in a fixed, spaced relationship by one or more cross members. A rectangular, longitudinally flexible seat extends between and is connected at opposite ends thereof to cross members at the upper ends of the respective frames. A folding footrest may also be provided which likewise nests within the frames and which forms a chaise lounge when an extra-long seat is utilized. The footrest can be of adjustable length to accommodate persons of differing heights. The nesting of the frames allows the chair to be folded into a compact rectangular unit about two and one half inches thick for storage or transport, with the unit being maintained in the folded position by pins which fit into corresponding apertures in the respective frames.
The first frame, or backrest frame, comprises a pair of elongate side members laterally connected by one or more cross members, typically both upper and lower cross members, the upper portion of the backrest frame being adapted for receiving and supporting a user's back in conjunction with the flexible seat, and a lower portion which functions as the front legs of the chair. The second frame, or seat frame, comprises a pair of elongate side members laterally connected by one or more cross members, typically both upper and lower cross members, the upper portion of the seat frame being adapted for receiving and supporting a user's buttocks and legs in conjunction with the flexible seat, and a lower portion which function as the rear legs of the chair. The backrest frame and the seat frame are typically constructed from naturally finished or unfinished wood, particularly hardwoods such as oak or maple for strength and rigidity. The members of each frame are joined together such as by corrosion resistant stainless steel or zinc plated metal screws and may also be glued together for added strength. The frames may alternatively be made from metal, plastic, composites, or other similarly rigid types of material available in solid or tubular sections. The frames can also each be made from metal tubing or bar stock bent into a U-shape such that the side members and one or more cross members are integral therewith.
The backrest frame and seat frame are maintained in the oppositely inclined, diagonally disposed orientation by means of a pair of upper and a pair of lower siderails. The siderails are typically substantially rigid wooden members constructed from naturally finished or unfinished wood, particularly hardwoods such as oak or maple though metal, plastics, and composite materials may also be used. Each upper siderail is connected such as by using bolts and nuts or sleeved rivets, at one end to an upper portion of the respective backrest frame side member and at the opposite end to an upper portion of the respective seat frame side member. Each lower siderail is connected such as by using bolts and nuts or sleeved rivets, at one end to a lower portion of the respective backrest frame side member and at the opposite end to a lower portion of the respective seat frame side member. The substantially rigid upper and lower siderails are typically all the same length with their connection points to the respective frame side members in the same longitudinal position on the side members of the respective frames for the pair of upper siderails and for the pair of lower siderails. This configuration allows the chair to fold properly into a compact unit. While substantially rigid siderails are preferable, flexible siderails such as metal chains, nylon rope, and cables may be used, though the chair will not fold as easily and extra retaining pins may be necessary to hold the chair in the folded position. When flexible siderails are used such as chains, the effective length thereof can easily be changed such by attachment the desired number of links of the chain between a pair of hook connections attached to the respective frame side members. This allows the various chair positions to be achieved without having the multiple alternate attachment points for the siderails.
Since the backrest frame and the seat frame are not pivotally connected at a fixed point such as where the frames cross, a saddle hinge is formed wherein the effective pivot point can move relative to the frames so as to allow an oscillating or rocking motion to be effected by a user of the chair. As the chair is rocked from a forward position rearward, the angle of the respective backrest frame and the seat frame change from a relatively upright chair with a generally more vertical backrest frame and a generally more horizontal seat frame to a rearward reclining position with the backrest frame in a generally more horizontal position with the seat frame in a generally more vertical position. The chair can be held in one or more predetermined positions so as to not rock by providing apertures in the respective backrest frame and seat frame side members, which apertures are positioned so as to align when the chair is in the desired position such that a pin can be inserted into each pair of apertures. While the chair can be pinned in any functional position thereof including when the seat is horizontal, typically there are provided apertures in the respective side members for the chair to have at least a forward chair position, an intermediate chair position, and a reclining chair position.
The chair can be equipped to be rocking or fixed type chair with foot support by utilizing a fold-out footrest of fixed or adjustable length to which the seat is not attached and which nests within the backrest and seat frame and which is pinned in place such that when the chair is in the folded position it forms the same compact unit for storage and transport. The chair can be equipped to be a chaise lounge by using an extra-long seat which attaches to the foot support on the footrest rather than to the seat frame. The reclining chair may be used with the footrest in a deployed position wherein a padded foot support member pivotally adjusts to support a user's feet in the various chair positions or in a pinned and folded or stowed position wherein the foot support member serves as a padded back support for the user. The footrest has two versions primarily for aesthetic appeal, one with a generally rectangular frame and a second having a T-shaped frame both of which essentially function the same as a foot rest. The footrest frames may be made from wood or alternatively from metal, plastic, composites, or other similarly rigid types of material available in solid or tubular sections. The footrest frames can also each be made from metal tubing or bar stock bent into a U-shape such that the side members and one or more cross members or the foot support are integral therewith.
Either footrest may be maintained in an elevated position relative to the floor surface or ground by attaching one of the cross members of the backrest frame in such a position as to contact the footrest frame when the foot support of the footrest is at a comfortable user height for the majority of the chair positions. Multiple vertical positions may be attained by providing removably attached cross members with multiple positions therefor such that the footrest frame contacts the cross members when at different angles, depending on the position of the cross members. The cross members might be in one position when the chair is reclined, and the cross members moved to another position when in the forward chair position. Rubber or plastic pads are typically attached to the footrest frame or the backrest frame so as to act as a cushion between and prevent damage to the frames when the footrest is being lowered.
One or two support legs pivotally connected to the footrest, at a point along the length thereof may likewise be used to maintain the footrest in an elevated position. The support legs contact the floor to help to prevent the chair from tipping over as a person enters or exits the chair. This is a safety feature which works even when the support legs are at a shorter length than required for the particular chair position since as the person enters or exits the chair the legs are still able to touch the ground before an unstable position is reached. On the first version of the footrest, two support legs are used, one on each footrest frame side member, and on the second version one center support leg located between the longitudinal members is used. The support legs may span between the footrest frame completely to the ground to maintain the footrest at a given height above the ground in a particular chair position or may span only partially to act as an anti-tipping device. The support legs can be pivoted to a retracted position substantially parallel to the ground and held there such as by friction at the pivot, a clip, or a pin. The support legs may be of fixed length or of adjustable length with an extendible lower leg with a ground contacting pad such as to be capable of contacting the ground in multiple chair positions.
There are four versions of the rectangular, longitudinally flexible seat on which a user sits, the first three of which are typically made of cloth such as canvas or nylon and the fourth made of substantially rigid slats. Each of the versions of the seat are longitudinally flexible so as to form a comfortable seat which conforms to the back, legs, and buttocks of a user seated therein. The cloth version seats typically have a sheet of resilient foam core sandwiched between one folded-over or a pair of canvas sheets with a sewn seam around the perimeter thereof so as to completely encase the foam core. Alternatively, the seat may be constructed using a thicker open-cell type foam core and made airtight such as by using plastic coated cloth with a glued or heat-sealed perimeter seam and sealing air valve to form an air mattress such as the well known THERMOREST type air mattresses manufactured by several different companies. Air can be admitted or exhausted from the foam in such air mattress seat so as to customize the feel thereof. Also, a separate THERMOREST or other type of air mattress may be laid on top of any of the seat versions for added comfort and may be fixed or removably attached thereto such as by using VELCRO or other type of fastening means.
In the first version of the seat, the ends of the cloth seat are attached to one or more upper cross members of each frame such as by wrapping an end portion of the seat around the respective upper cross member and sewing it back to the seat so as to envelope the respective cross member. The respective cross members may be made to be removably attached such as by bolts and wingnuts to the respective side members so as to allow removal of the seat from the rest of the chair such as for laundering.
The second version of the seat is of substantially the same construction as the first version thereof, but has doubled-over cuff portions at each end thereof of sufficient width as to fit over the upper portion of the backrest and the seat frames including the respective upper cross members and the upper portion of the respective side members. This version of the seat is securely held in place by the cuffs yet may be easily removed by sliding the cuffs off the upper portions of the respective frames without necessitating the removal of any cross members.
The third version of the seat converts the rocking chair with footrest into a chaise lounge. This version of the seat is generally rectangular in shape but of longer length so as to extend from the backrest upper cross members to the footrest. The attachment of the seat to the respective upper cross members and footrest such as by using VELCRO loop pads glued to the upper cross members and to the footrest and VELCRO loop pads sewn or riveted to the footrest, though other methods of attachment to the upper backrest can be utilized such as described above and those same methods adapted to fit on the footrest.
The fourth version of the seat comprises a plurality of substantially rigid, laterally extending bars or slats, typically rectangular in cross-section and made of wood. The slats each have at least a pair of lateral apertures therethrough, one near each end thereof, which extend longitudinally relative to the frames. A flexible member, typically a nylon rope, extends through each aperture at one side of the slats with a pair of knots tied therebetween each, with a second flexible member extending through each aperture at the opposite end thereof with a pair of knots therebetween, the ends of each flexible member tied or otherwise connected to the respective backrest and seat upper cross members. The knots maintain the slats evenly spaced along the flexible member and allow greater flexibility of the seat. Other types of spacers may be used in place of the knots such as tubular spacers made of wood, metal, or plastic.
The chair may be equipped with a pair of wheels pivotally connected to the lower portion of the backrest frame on individual axles and which axles may be reversed so as to not extend from the chair when wheels are not required. The wheels are the rubber pneumatic type or the wooden type for more decorative use such as poolside, though most any type wheel including the plastic and solid rubber types will work.
The wheeled chair has four main uses, the first of which is to allow easier transport of the chair both in the folded position and when in the chair position. In the folded position a user merely grasps the upper portions of the folded backrest and seat frames, tilts the folded chair and pushes or pulls the chair to a new location. The lower portion of the backrest frame, or front legs thereof, may be made of such length as to extend beyond the outer diameter of the wheel when the folded chair is in a vertical position such that in such position the chair will rest on the front legs with the wheels off the ground so as to not inadvertently roll, and will roll only when tipped at a sufficient angle off of vertical for the wheels to touch the ground. When in the chair position, the wheels allow the chair to easily be moved by grasping and lifting the backrest frame such that the lower portion of the seat frame, or the rear legs, lift from the ground such that only the wheels contact the ground. After the chair is moved, the backrest frame is lowered such that the rear legs again contact the ground. If the support legs are deployed they along with a pair of straps connecting the backrest and seat frames help prevent the chair from tipping too far forward to a position wherein the chair might roll backwards on the wheels or tip. Also, the lower ends of the backrest frame side members touch the ground when the chair is tipped forward sufficiently so as to help prevent rolling of the chair on the wheels.
The second main use of the wheels is to allow the chair to be used as a wheeled hauler for carrying equipment and as a wheelchair for moving a person. The chair with wheels can be used to haul equipment placed on the seat or footrest thereof in any position. A wheelchair position is achieved by tilting the backrest frame forward into the upright chair position and locking it there by inserting a pair of locking pins into the apertures in the backrest and seat frame side members. As such, a person can be wheeled around quite easily with little effort.
The third main use of the wheels is to allow the chair, when equipped with the first version of the footrest, to be used as a cart such as to move heavy items. The cart position is achieved by opening or unfolding only the footrest while the backrest frame and the seat frame remain in a closed or folded position. A load is supported on the upper portion of the footrest frame with the aid of one or more removable flexible or rigid bands which may be placed laterally around the footrest frame so as to help support the load in those areas of the footrest frame which lack cross members. Substantially rigid cross members may also be built into the footrest frame if desired. The cart is tilted like a standard hand cart so as to lift the load onto the wheels for transport. If the first version of the adjustable position footrest mechanism is used, either position may be utilized depending on the desired angle between the backrest and seat frames with the footrest frame in the cart position. Optional short folding legs may be used at the ends of each footrest frame longitudinal member to prevent the footrest frame from touching and possibly being abraded by the ground.
The chair can also be equipped for hiking and camping by attaching a removable pack to the rear of the chair with removable shoulder straps which attach to an upper cross member of the seat frame and to a lower cross member of the backrest frame. A removable belt can also be attached to the backrest frame lower cross member to further secure the frames to the user. The pack is typically removably attached to the bottom surface of the seat by means such as VELCRO hook and loop pads to the bottom surface of the seat and the pack. The pack can be attached adjacent the area of the seat behind a person's back and shoulders when used as a chair or a backpack, or below a person's buttocks when used as a chair for easy access such as to beverages or other items held therein. The pack may also be removably attached to the top surface of the seat if desired. The pack may be used to hold such items as an umbrella, a mist bottle, water bottles, etc. An optional configuration especially for camping and hiking allows the frames and the siderails to telescope and collapse such that the overall length of the folded chair shortens and extends by up to about twelve inches or more.
Both wooden and tubular metal chairs can be constructed which utilize upper siderails which are of adjustable length relative to the backrest and seat frames. The tubular metal chair preferably utilizes U-shaped tubular members which integrally include the respective side members and one respective cross member for each of the backrest, seat, and footrest frames, along with another cross member connected across the open end of the respective U-shaped member. The upper siderails of the tubular metal chair is preferably of adjustable length relative to the backrest and seat frames by means of being of adjustable length, comprising first and second end portions which are longitudinally movable relative to each other such as by being tubes which closely telescope together, and being lockable in a fixed position relative to each other using an adjustment mechanism such as a spring clip disposed within an innermost of the first and second portions which includes a head that extends into a hole through a wall of the innermost of the first and second end portions which is selectively engageable through the hole into each of a plurality of linearly disposed holes of a wall of an outermost of the first and second portions to releasibly lock the first and second end portions in a plurality of linear positions.
On the wooden chair, the upper siderails are preferably of adjustable length relative to the backrest and seat frames by means of corresponding end portions of each upper siderail being of adjustable mounting position on one of the backrest and seat frames, preferably the backrest frame, using ratchet plates. A pair of elongate armrests can be being pivotally connected to the respective upper siderail at one end adjacent the backrest frame, and at the other end using a respective support mechanism, preferably a folding brace connected to the upper siderail to selectively retain the end of the respective armrest in an elevated and a lowered position.
Both the tubular metal and the wooden chairs preferably include a footrest, the tubular metal footrest typically comprising a U-shaped tubular member with a foot support pivotally connected across the open end thereof. The footrest can also be made of three telescoping tubular members comprising two tubular side members and a truncated U-shaped tubular cross member which interconnects the side members. The footrest is retained at the desired height of a plurality thereof by means of a pair of variable incline ratchet assemblies including a ratchet plate connecting the footrest to the backrest frame. A pivotally mounted U-shaped release plate allows release of the ratchet plate without necessitating gripping in hand the ratchet plate directly. The wooden embodiment utilizes a wooden footrest and similar variable incline ratchet assemblies.
While the chair shown herein accommodates a single user, the respective frames and seat can be made wider and stronger such as to accommodate larger persons as well as two or more persons sitting in the chair at the same time. Likewise, multiple chairs can be linked together side-by-side or otherwise so as to provide seating for multiple persons.
The best mode presently contemplated for carrying out the invention is illustrated in the accompanying drawings, in which:
The overall structure of the folding rocking chair and chaise lounge first embodiment is best seen in
Backrest frame 40 comprises a pair of elongate side members 46 and 48, a pair of upper cross members 50 and 52, and a pair of lower cross members 54 and 56. All of the members of backrest frame 40 are typically made from hardwood, and are attached together such as by screws 58, except for cross members 54 and 56 which are removably attached such as by bolts 60 and wingnuts 62 inserted through a plurality of apertures either 63 and 64 or 65 and 66, and either 67 and 68 or 69 and 70 (FIG. 10), to maintain footrest frame 40 at one or the other of two elevational heights as will be explained subsequently. The lower portion of each of side members 46 and 48 comprise front legs 71 and 72, respectively.
Seat frame 42 comprises a pair of elongate side members 80 and 82, a pair of upper cross members 84 and 86, and a lower cross member 87. All of the members of seat frame 42 are typically made from hardwood, and are attached together such as by screws 58. The lower portion of each of side members 80 and 82 comprise rear legs 88 and 89, respectively.
Footrest frame 44 comprises a pair of elongate side members 90 and 91, a pair of lower cross members 92 and 93. All of the members of footrest frame 44 are typically made from hardwood, and are attached together such as by screws 58. A foot support 94 is pivotally attached to footrest frame side members 90 and 91 as by screws 58 and washers 96 (FIG. 3). Foot support 94 is held in a stowed position parallel to side members 92 and 93 while not in use by a pair of conventional spring-loaded plungers 97 one each fitted into apertures 98 and 99 of footrest side members 90 and 91, respectively, which selectively mate with one or the other pair of matching detentes 100 or 101 in foot support 94 (FIG. 9). A pair of recessed apertures 102 and 103 extend through footrest side members 90 and 91. A pair of elongate footrest legs 104 selectively support footrest frame 44, each having an upper aperture 105 and which are pivotally attached to footrest side members 90 and 91 by means of bolts 106 extending through the respective apertures 102 and 105 or 103 and 105 and removably secured by wingnuts 62. A pair of rubber or plastic pads 106 are attached to each of footrest side members 90 and 91 so as to cushion the contact with the backrest lower cross member 56 in each of two positions (FIG. 10).
Backrest frame 40 and seat frame 42 are connected together so as to form the basic rocking chair by a pair of upper siderails 110 and a pair of lower siderails 112. Upper and lower siderails 110 and 112 are typically substantially rigid members. Each of upper siderails 110 have a recessed aperture 114 which aligns with an aperture 116 or 118 in seat frame side members 80 and 82, respectively, with a washer 97 therebetween, and through which a bolt 120 is disposed and removably held in place by a wingnut 62. Each of upper siderails 110 also have a recessed aperture 122 which aligns with a recessed aperture 124 or 126 in backrest frame side members 46 and 48, respectively, with an end of a retaining strap 127 having a aperture (not shown) therebetween and through which a bolt 128 is disposed and held in place by a nut 130 (FIG. 4).
Each of lower siderails 112 have a recessed aperture 132 which aligns with a recessed aperture 134 or 136 in seat frame side members 80 and 82, respectively, with the opposite end of retaining strap 127 therebetween, and through which a bolt 128 is disposed and removably held in place by a nut 130. Each of lower siderails 112 also have an axle aperture 138 which aligns with an axle aperture 140 and 142 in backrest frame side members 46 and 48, respectively, and with axle apertures 144 and 146 in footrest frame side members 46 and 48, and through which a sleeve or bushing 147 and a bolt or threaded axle 148 is disposed (FIG. 5). A pair of wheels 150, typically of the rubber pneumatic type, are disposed on threaded axles 148 with washers 152 and retained thereon by wingnuts 154. Wheels 150 are used in certain chair configurations and may be removed for storage and threaded axles 148 may be reversed such that they do not protrude from the sides of the chair (FIG. 6).
When upper and lower siderails 110 and 112 are substantially rigid members, the placement of the connections thereof to the respective side members must be designed such that the chair folds properly and opens to the desired positions. In such case, typically the attachment points of the pair of upper siderails 110 and the pair of lower siderails 112 to the respective backrest frame and seat frames 40 and 42 are substantially the same on each side of the chair such that the respective pairs of siderails are parallel. Likewise, the distance between apertures 114 and 122 of upper siderails 110 and between apertures 132 and 138 of lower siderails 112 will typically be substantially equal, with upper and lower siderails 110 and 112 being generally parallel to the ground in the chair position to allow the chair to fold up properly. Other configurations wherein the backrest frame 40 and seat frame 42 properly fold and nest together with upper and lower siderails 110 and 112 are also possible.
Once the chair is folded, a pair of pins such as ring handled, spring ball bearing pins 156 are inserted through the respective apertures 158 and 160 of seat frame 42 side members 80 and 82, apertures 162 of lower siderails 112, apertures 164 and 166 of backrest frame 40 side members 46 and 48, apertures 168 and 170 of footrest frame 44, and apertures 172 of footrest legs 103 so as to retain the chair in the closed or stowed position (FIG. 7). By removing pins 156 the chair can be easily be unfolded, especially when the upper and lower siderails 110 and 112 are substantially rigid. If upper siderails 110 and/or lower siderails 112 are flexible, an additional pin or pair of pins (not shown) inserted into additional coaxial apertures (not shown) through the respective frames 40, 42, and 44 and spaced therefrom may be needed to maintain the same in the proper folded position. Each of the various apertures wherein members pivot relative to one another or wherein pins may be inserted may be made larger such that a metal or plastic bushing (not shown) may be pressfit or glued therein so as to provide a more precise fit and eliminate wear to the respective member, particularly when the members are wooden.
Referring to
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The chair is shown in
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In all of the positions shown the chair has an oscillating or rocking function. In some instances, it might be desired to restrain the rocking. In such cases spring ball bearing pins 156 (
Footrest frame 44 is relatively rigid in its unfolded or deployed state as supported on pads 106 by cross member 56 (FIGS. 10 and 12). There may, however, be cases wherein greater footrest rigidity is desired. In such cases, the use of fixed length legs 104 (
Referring to
Alternately, an adjustable length leg 250 as illustrated in
When the chair is equipped with wheels (
The chair with wheels can also function as a hand truck or cart such as for hauling camping equipment from an automobile to the camp site which cart is illustrated in FIG. 18. In such a position, backrest frame 40 and seat rest frame 42 are in the folded position with footrest frame 44 in the deployed position and legs 104 are in the stowed position. A pair of elongate flexible bands 280, typically having VELCRO hook and loop pads (not shown) attached to the respective ends thereof, are wrapped around footrest frame 44. Bands 280 can be positioned where needed on footrest frame 44 to help support the load carried on the footrest frame 44. A pair of end support legs 282 may be pivotally attached to footrest frame side members 90 and 91 opposite wheels 150 so as to maintain footrest frame 44 off the ground so as to help prevent unsightly scuffing thereof which may be especially visible in other chair positions. Each of end support legs 282 has a center aperture 284 and is pivotally mounted to the respective footrest frame side members 90 and 91 such as by bolts 286 disposed in apertures 288 and 290 of footrest side members 90 and 91, respectively. Each of end support legs 282 may be placed in a deployed, ground-contacting position (dotted lines) or in a stowed position (solid lines) by means of wingnuts 292. A pair of safety pins (not shown) such as the type pins 156 (
The angle between the backrest frame 40 and footrest frame 44 can be set at two positions if such feature is included in the chair function.
There are several alternate versions of some chair components from those previously described, the first of which is the seat. The seat as illustrated in
As another alternative, a second version seat 310 is illustrated in
A third version extra-long seat 344 is shown in
A fourth version seat 360 is shown in
An alternate version wheel 390 is shown in
An alternate version of footrest frame 44 is illustrated in
A pivotable foot support 424 having pad 95 affixed to the top thereof and a pair of brackets 425 attached to the bottom thereof using screws 426 is pivotally mounted to footrest frame 410 by means of bolt 427 inserted through a pair of apertures 428 in brackets 422, a pair of apertures 430 and 432 in longitudinal members 412 and 413, respectively, and through an aperture 434 in a block 435 sandwiched between longitudinal members 412 and 413 and secured thereto by means of wingnut 62. A bolt 436 extends through apertures 438 and 439 in longitudinal members 412 and 413, and aperture 448 in block 440, and is secured by nut 130. A fixed or adjustable height leg such as adjustable height leg 236 can be attached to footrest frame 410 by means of bolt 442 inserted into apertures 444 and 446 of longitudinal members 412 and aperture 234 of adjustable leg 236 and secured by wingnut 62 (
The angle of footrest frame 410 can be changed in the same manner as footrest frame 44 by moving backrest lower cross member 56 so as to restrict the downward movement of footrest frame end members 416 and 418. A pair of elongate pads 450 shown in
The chair can be equipped for backpacking as shown in
A canvas or nylon pack 502, particularly useful for back-packing and camping may be permanently or removably attached to the chair. The design of the pack is not critical and custom designed packs or standard store-bought packs can be adapted for use thereon. A typical pack 502 has an upper flap 504, a pouch 506, and lower pocket 508, an umbrella loop 510, and is removably attached to seat 174 as by a VELCRO loop pad 512 riveted or sewn laterally across seat 174 and a VELCRO hook pad 514 riveted or sewn to upper flap 504 (
A second embodiment of the chair specially designed for backpacking with frames that telescope and partially collapse is illustrated in
Backrest frame 540 comprises a pair of elongate telescoping side members 546 and 548. Backrest frame side member 546 comprises a center tube 550, an upper side bar 552, a lower sidebar 554, and a pair of externally threaded spring-loaded plungers 556. Upper sidebar 552 and lower sidebar 554 have threaded apertures 558 and 560, respectively, into each of which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from the respective aperture (FIGS. 31 and 32). Upper sidebar 552 and lower sidebar 554 are sized such that each closely fits within center tube 550 at opposite ends thereof. Center tube 550 has a pair of apertures 564 and 566 through a wall thereof for ball 562 of spring-loaded plunger 556 in upper sidebar 552 to catch and another pair of apertures 568 and 570 through a wall thereof for ball 562 of spring-loaded plunger 556 in lower sidebar 554 to catch. The distance between apertures 564 and 588 and between apertures 568 and 570 is typically about six inches so as to still accommodate the other features of the chair which results in a total twelve inch reduction in length of telescoping side member 546 from an extended position to a retracted position.
Backrest frame side member 548 similarly comprises a center tube 572, an upper sidebar 574, a lower sidebar 576, and another pair of externally threaded spring-loaded plungers 556. Upper sidebar 574 and lower sidebar 576 have threaded apertures 578 and 580, respectively, into each of which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from the respective aperture (FIGS. 31 and 32). Upper sidebar 574 and lower sidebar 576 are sized such that each closely fits within center tube 572 at opposite ends thereof. Center tube 572 has a pair of apertures 582 and 584 through a wall thereof for ball 562 of spring-loaded plunger 556 in upper sidebar 574 to catch and another pair of apertures 586 and 588 through a wall thereof for ball 562 of spring-loaded plunger 556 in lower sidebar 576 to catch. The distance between apertures 582 and 584 and between apertures 586 and 588 is likewise typically about six inches which results in a total twelve inch reduction in length of telescoping side member 548 from an extended position to a retracted position.
Backrest frame 540 further comprises a pair of upper cross members 590 and 592 and a pair of lower cross members 594 and 596. All of the cross members are typically tubing and attached to telescoping side members 546 and 548 such as by bolts 600 and nuts 602, except for cross members 594 and 596 which are removably attached such as by bolts 604 and wingnuts 606. The lower portion of each of side members 546 and 548 form front legs 608 and 610, respectively.
Seat frame 540 comprises a pair of elongate telescoping side members 612 and 614. Seat frame side member 612 comprises a center tube 616, an upper sidebar 618, and an externally threaded spring-loaded plunger 556. Upper sidebar 618 has a threaded aperture 620 into which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from therefrom (FIGS. 31 and 32). Upper sidebar 618 is sized such as to closely fit within center tube 616 at an end thereof. Center tube 616 has a pair of apertures 622 and 624 through a wall thereof for ball 562 of spring-loaded plunger 556 in upper sidebar 618 to catch. The distance between apertures 622 and 624 is typically about six inches and results in a six inch reduction in length of side member 612 from an extended position to a retracted position.
Seat frame side member 548 comprises a center tube 626, an upper sidebar 628, and an externally threaded spring-loaded plunger 556. Upper sidebar 628 has a threaded aperture 630 into which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from therefrom (FIGS. 31 and 32). Upper sidebar 628 is sized such as to closely fit within center tube 626 at an end thereof. Center tube 626 has a pair of apertures 632 and 634 through a wall thereof for ball 562 of spring-loaded plunger 556 in upper sidebar 628 to catch. The distance between apertures 632 and 634 is typically about six inches and results in a six inch reduction in length of telescoping side member 614 from an extended position to a retracted position.
Seat rest frame 542 further comprises a pair of upper cross members 636 and 638 and a lower cross members 640. All of the cross members are typically tubing, and all are attached to telescoping side members 612 and 614 such as by bolts 600 and nuts 602. The lower portion of each of side members 612 and 614 form front legs 642 and 644, respectively.
Footrest frame 544 comprises a pair of elongate telescoping side members 646 and 648. Side member 646 comprises a center tube 650, a lower sidebar 652, and an externally threaded spring-loaded plunger 556. Lower sidebar 652 has a threaded aperture 654 into which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from therefrom. Lower sidebar 652 is sized such as to closely fit within center tube 650 at an end thereof. Center tube 650 has a pair of apertures 656 and 658 through a wall thereof for ball 562 of spring-loaded plunger 556 in lower sidebar 652 to catch. The distance between apertures 656 and 658 is typically about six inches and results in a six inch reduction in length of side member 646 from an extended position to a retracted position.
Footrest frame side member 648 comprises a center tube 660, a lower sidebar 662, and an externally threaded spring-loaded plunger 556. Lower sidebar 662 has a threaded aperture 664 into which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from therefrom (FIGS. 31 and 32). Lower sidebar 662 is sized such as to closely fit within center tube 660 at an end thereof. Center tube 660 has a pair of apertures 666 and 668 through a wall thereof for ball 562 of spring-loaded plunger 556 in lower sidebar 662 to catch. The distance between apertures 666 and 668 is typically about six inches and results in a six inch reduction in length of side member 648 from an extended position to a retracted position.
Footrest frame 544 further comprises a pair of lower cross members 670 typically of square tubular construction, inside the ends of each of which is attached such as by brazing, welding, or pressfitting an internally threaded square plug 672. Lower cross members 670 are attached to telescoping side members 646 and 648 such as by bolts 600 disposed in recessed apertures 673 and 674 in lower sidebars 652 and 662, respectively. A foot support 675, typically an aluminum plate, is pivotally attached to footrest frame center tubes 650 and 660 as by bolts 600, one each disposed in each group of recessed aperture 676, aperture 677, aperture 678, and recessed aperture 679, aperture 680, aperture 681 with washers 96 therebetween. Foot support 675 is held in a stowed position while not in use by first or second pairs of spring-loaded plungers 556 one fitted into each of plunger apertures 684, 686, 688, and 690 of foot support 675 with the ball 562 of each extending therefrom. A pair of matching apertures 692 and 694 in center tubes 650 and 660, respectively, adapted to selectively engage one or the other pairs of balls 562 of spring-loaded plungers 556 to maintain foot support 675 in a stowed position.
There are two pairs of apertures, recessed aperture 696 and aperture 698, and recessed aperture 700 and aperture 702, through the walls of center tubes 650 and 660, respectively. A pair of elongate footrest legs 104 each having an upper aperture 105 are pivotally attached to footrest center tubes 650 and 660 by means of bolts 600 extending through the respective apertures 696 and 698, or 700 and 702, being removably secured by wingnuts 62. A rubber or plastic pad 450 or a pair of pads 106 are attached to each of footrest lower bars 652 and 662 using bolts 703 so as to cushion the contact between the same with backrest lower cross member 596.
Backrest frame 540 and seat frame 542 are connected together to form a basic rocking chair by a pair of telescoping upper and lower siderails 704 and 706, respectively. Each of upper siderails 704 comprise a center tube 708, an upper sidebar 710, and an externally threaded spring-loaded plunger 556. Upper sidebar 710 has a threaded aperture 712 into which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from therefrom (FIGS. 31 and 32). Upper sidebar 710 is sized such as to closely fit within center tube 708 at an end thereof. Center tube 708 has a pair of apertures 714 and 716 through a wall thereof for ball 562 of spring-loaded plunger 556 in upper sidebar 710 to catch. The distance between apertures 714 and 716 is typically about six inches to accommodate the other features of the chair. This results in a six inch reduction in length of telescoping upper siderail 704 from an extended position to a retracted position.
Each of upper siderail upper sidebars 710 have an aperture 718 which aligns with an aperture 720 and 722 in seat frame upper sidebars 618 and 628, respectively, with a washer 724 therebetween, and through which a bolt 726 is disposed and removably held in place by a wingnut 62. Each of upper siderails 704 also have a recessed aperture 728 and an aperture 730 which align with a recessed aperture 732 and aperture 734 or recessed aperture 736 and aperture 738 in backrest frame center tubes 550 and 572, respectively, with an end of a retaining strap 127 therebetween, and through which a bolt 740 is disposed and held in place by a nut 130.
Each of lower siderails 706 comprise a center tube 742, a lower sidebar 744, and an externally threaded spring-loaded plunger 556. Lower sidebar 744 has a threaded aperture 746 into which is threaded a spring-loaded plunger 556 with the ball thereof 562 extending slightly from therefrom (FIGS. 31 and 32). Lower sidebar 744 is sized such as to closely fit within center tube 742 at an end thereof. Center tube 742 has a pair of apertures 748 and 750 through a wall thereof for ball 562 of spring-loaded plunger 556 in lower sidebar 744 to catch. The distance between apertures 748 and 750 is typically about six inches and results in a six inch reduction in length of telescoping lower siderail 706 from an extended position to a retracted position.
Each of telescoping lower siderails 706 lower sidebars 744 have an axle aperture 752 which aligns with an axle aperture 754 or 756 in backrest frame lower sidebars 554 and 576, respectively, and with axle apertures 758 and 759 in footrest frame lower sidebars 652 and 662, respectively, and with washers 724 therebetween, and through which bushing 147 and threaded axle 148 are disposed with washers 152 and retained thereon by wingnuts 154. Alternatively, apertures 760 and 761 or apertures 762 and 763 may be used so as to shorten footrest frame 544 such as for short people and children. Also, each of footrest frame lower sidebars 652 and 662 have an aperture 764 and 765 therethrough, respectively. A pair of safety pins (not shown) such as the type pins 156 (
The distance between apertures 718 and 728 of telescoping upper siderails 704 and between apertures 752 and 762 or 764 of telescoping lower siderails 706 are the same in the extended and the contracted positions such that the chair can fold and collapse to the position shown in
The same rectangular, longitudinally flexible seat 174 (
Referring to
A third embodiment folding rocking chair and chaise lounge is shown in
Backrest frame 825 is of U-shape comprising a U-shaped member 832 having a pair of elongate side portions 834 and 837 interconnected by a bottom portion 840, and an upper cross member 843. Member 843 of backrest frame 825 is typically made from hardwood, and is attached to respective side portions 834 and 837 such as by screws 846.
Seat frame 828 is of U-shape comprising a pair of elongate side portions 849 and 852 interconnected by a bottom portion 855, and an upper cross member 858. Member 858 of seat frame 828 is typically made from hardwood, and is attached to respective side portions 849 and 852 such as by screws 846.
Footrest frame 831 is of U-shape comprising a pair of elongate side portions 861 and 864 interconnected by a bottom portion 867, and a pivotal foot support 870. Foot support 870 of footrest frame 831 is typically made from hardwood, and is attached to respective side portions 861 and 864 such as by screws 846 and washers 873. An end cap 876 and a spring clip 879 having a tapered head 882 to provide a more finished appearance to side portions 861 and 864 (FIG. 46).
Foot support 870 can be held in a stowed position parallel to side portions 861 and 864 while not in use by a pair of conventional spring-loaded plungers (not shown) one each fitted into a pair of apertures (not shown) of footrest side portions 861 and 864, respectively, which selectively mate with one or the other pair of matching detentes (not shown) in foot support 870 in a similar manner to the first embodiment chair.
Backrest frame 825 and seat frame 828 are connected together so as to form the basic rocking chair by means of a pair of adjustable length, curved upper siderails 885, and a pair of lower siderails 888. Upper and lower siderails 885 and 888 are substantially rigid members. Upper siderails 885 each comprise a curved front tube 891, a straight rear tube 894, an end tube assembly 897, and a tubular cushion 900. Front tube 891 includes a front portion 903 having a single aperture 906 therethrough, and a rear portion 909 having a plurality of apertures 912, 915, and 918 therethrough. Rear tube 894 includes a front portion 921 which pilots into rear portion 909 of front tube 891 and a rear portion 924, an aperture 927 extending through front portion 921 which engages a spring clip 930 having a tapered head 933 to provide adjustability as subsequently described. End tube assembly 897 comprises a tube 936 which fits over rear portion 924 with an aperture 939 therethrough, and an end cap 942 which pressfits thereinto. Tubular cushion 900 closely fits over front tube 891 and includes a plurality of apertures 945, 948, and 951 therethrough which correspond with apertures 912, 915, and 918 of front tube 891 to provide finger access to depress tapered head 933 of spring clip 930. Tubular cushion 900 is made of urethane, sponge rubber, foam, or other such material so as to provide arm cushioning to upper siderails 885. Upper siderails 885 pivotally connect to the respective side portions 834 and 837 of backrest frame 825 and side portions 849 and 852 of seat frame 828 using respective bolts 954 each having an internally threaded end 957, nylon washers 960, and screws 963 which thread into threaded ends 957.
Each of lower siderails 888 include a front portion 966 and a rear portion 969 with respective apertures 972 and 975 extending therethrough, and a pair of end caps 978 pressfit thereinto. Rear portions 969 of lower siderails 885 pivotally connect to the respective side portions 849 and 852 of seat frame 828 using respective bolts 954, nylon washers 960, and screws 963. Front portions 969 of lower siderails 885 pivotally connect to the respective side portions 834 and 837 of backrest frame 825, along with respective side portions 861 and 864 of footrest frame 831 using respective bolts 981, nylon washers 984, and wingnuts 987. Bolts 981 are of sufficient length to allow the mounting of respective wheels (not shown) for wheeled transport as in the other embodiments previously described. Adjustable length, curved upper siderails 885 operate by depressing button 882 of spring clip 879 such that the desired aperture 945, 948, or 951 of front tube 891 can be utilized.
The placement of the pivotal connections of upper and lower siderails 885 and 888 to the respective side portions 834 and 837 of backrest frame 825 and side portions 849 and 852 of seat frame 828 must be designed such that the chair folds properly and opens to the desired positions as previously described for the other embodiments of the chair. The chair can be retained in the folded position by a pair of pins (not shown) inserted through appropriately placed apertures (not shown) as also previously described.
Footrest frame 831 is retained in the desired elevational position relative to seat frame 828 by means of respective variable incline ratchet assemblies 990 each comprising an elongate ratchet plate 993 having respective front and rear portions 996 and 999, a longitudinally extending main slot 1002, a plurality of offset angled locking slots 1005, 1008, and 1011, and an aperture 1017. Variable incline ratchet assemblies 990 further comprise a U-shaped release plate 1020 having a central portion 1023 with an aperture 1026 therethrough and respective dependent legs 1029 and 1032. Front portions 996 of ratchet plates 993 are pivotally connected to side portions 861 and 864 of footrest frame 831 using respective bolts 1035 each having an internally threaded end 1038, nylon washers 1041, and screws 1044 which thread into threaded ends 1038. Rear portions 999 of ratchet plates 993 and release plate 1020 are pivotally connected to side portions 834 and 837 of backrest frame 825 using respective bolts 1047 each having an internally threaded end 1050, nylon washers 1053, and screws 1056 which thread into threaded ends 1050.
Referring to
A rectangular, longitudinally flexible seat 1059 of similar construction to seat 174 includes a head end 1062, a foot end 1065, and typically has a canvas top layer 1068 and a canvas bottom layer 1071 which surround a padded core 1074 such as sheet foam, which extends for most of the length thereof. Head end 1062 is retained in place by a portion thereof 1077, which contains no padded core 1074, which is completely wrapped around upper cross member 843 of backrest frame 825 and retained such as by a riveted or sewn seam 1080. Foot end 1065 is retained in place by a portion 1083 thereof which contains padded core 1074, which is completely wrapped around upper cross member 858 of seat frame 828 and retained such as by a riveted or sewn seam 1084, with padded core 1074 acting to cushion a user's legs. Seat 1059 can also include an attached pillow 1085 sewn to portion 1077 of head end 1062. The seat can also be made longer to attach to footrest 870 so as to form a chaise lounge as in previous embodiments.
An alternate, extendible length footrest frame 1086 is of U-shape comprising a pair of elongate tubular side portions 1087 interconnected by a tubular U-shaped bottom portion 1088, and pivotal foot support 870. Tubular side portions 1087 include a front portion 1089 having a single aperture 1090 therethrough, and a rear portion 1091 having a plurality of apertures 1092, 1093, and 1094 therethrough. Foot support 870 is attached to respective front portions 1089 of tubular side portions 1087 such as by screws 846 and washers 873. An end cap 876 and a spring clip 879 having a tapered head 882 provide a more finished appearance to side tubular side portions 1087. U-shaped bottom portion 1088 includes a pair of tubular legs 1095 and 1096 which are interconnected by a tubular cross leg 1097. Tubular legs 1095 and 1096 pilot into respective rear portions 1091 of tubular side portions 1087, respective apertures 1097 and 1098 extending through the wall of tubular legs 1095 and 1096, which engage respective spring clips 930 to provide adjustable length of footrest frame 1086. Footrest frame 1086 operates by depressing button 933 of each spring clip 930 such that the desired aperture 1092, 1093, and 1094 of tubular side portions 1087 can be utilized.
A fourth embodiment folding rocking chair and chaise lounge is shown in
Backrest frame 1099 comprises a pair of elongate side members 1102 and 1103, a pair of upper cross members 1104 and 1105, and a plurality of lower cross members 1115, 1116, and 1117. All of the members of backrest frame 1099 are typically made from hardwood, and are attached together such as by screws 58. The lower portion of each of side members 1102 and 1103 comprise front legs 1118 and 1119, respectively.
Seat frame 1100 comprises a pair of elongate side members 1122 and 1125, a pair of upper cross members 1128 and 1131, and a pair of lower cross members 1134 and 1137. Side members 1122 and 1125 include respective ratchet plates 1140 and 1143 attached thereto by means of a plurality of screws 1146. A respective longitudinally extending main slot 1147 and 1149 extends through the respective ratchet plates 1140 and 1143, and through side members 1122 and 1125, along with a pair of offset angled locking slots 1152 and 1155. All of the members of seat frame 1092 are typically made from hardwood, and are attached together such as by screws 58. The lower portion of each of side members 1122 and 1125 comprise rear legs 1158 and 1161, respectively.
Footrest frame 1101 comprises a pair of elongate side members 1164 and 1167, a lower cross member 1170. All of the members of footrest frame 1095 are typically made from hardwood, and are attached together such as by screws 58. A foot support 1176 is pivotally attached to footrest frame side members 1164 and 1167 as by screws 58 and washers 96. Foot support 1176 can be held in a stowed position parallel to side members 1164 and 1167 while not in use by utilizing a pair of conventional spring-loaded plungers (not shown) as done for the first embodiment of the chair.
Backrest frame 1099 and seat frame 1100 are connected together so as to form the basic rocking chair by a pair of upper siderail assemblies 1174 and 1175, and a pair of lower siderails 1176. Each of upper siderail assemblies 1174 and 1175 comprise a respective upper siderail 1179 and 1182, a pivotal armrest 1185 and 1188, and a folding brace 1191 having respective upper and lower members 1194 and 1197 which are pivotally connected together. Upper and lower siderails 1179 and 1182, and 1176 are substantially rigid members. Upper siderails 1179 and 1182 include respective front portions 1200 and 1203, and rear portions 1206 and 1209, respectively. Each of upper siderails 1179 and 1182 have a recessed aperture 1212 and 1215 through respective rear portions 1206 and 1209 which aligns with respective recessed apertures 1216 and 1217 in backrest frame side members 1102 and 1103, with a first end 1218 of a retaining strap 1221 having a aperture 1222 being therebetween, and through which a bolt 1224 is disposed and held in place by a nut 1227 (FIG. 51). Armrests 1185 and 1188 each have a recessed aperture 1230 and 1233 through respective rear portions 1236 and 1239 which align with respective recessed apertures 1242 and 1245 in upper siderails 1179 and 1182, through which a bolt 1248 is disposed and held in place by a nut 1227. Front portions 1200 and 1203 of upper siderails 1179 and 1182, and lower members 1197 of folding braces 1191 are pivotally connected to respective side members 1122 and 1125 of seat frame 1092 through main slots 1147 and 1149 of ratchet plates 1140 and 1143 thereof using respective clevis pins 1251 each having a transverse hole 1254 therethrough, a cotter pin 1257, a flat washer 1260, and a pair of nylon washers 1263 and 1266. Upper members 1194 of folding braces 1191 are pivotally connected to respective front portions 1269 and 1272 of armrests 1185 and 1188 by means of respective bolts 1273, nylon washers 1274, and nuts 1275 so as to provide respective raised positions (
Each of lower siderails 1176 have a recessed aperture 1276 which aligns with a respective aperture 1278 and 1281 in side members 1122 and 1125 of seat frame 1092, with a second end 1284 of a retaining strap 1221 having a aperture (not shown) therebetween, and through which a bolt 1287 is disposed and removably held in place by a nut 1290. Each of lower siderails 1176 also have an axle aperture 1293 which aligns with a respective axle aperture 1296 and 1299 in side members 1101 and 1102 of backrest frame 1099, and with axle apertures 1302 and 1305 in side members 1164 and 1167 of footrest frame 44, and through which a sleeve or bushing 147 and a bolt or threaded axle 148 is disposed (FIG. 5). Bolts 148 are of sufficient length to allow the mounting of respective wheels (not shown) for wheeled transport as in the other embodiments previously described. Upper siderail assemblies 1174 and 1175 operate by lifting the respective front portion 1197 and 1200 of upper siderails 1179 to release bolts 1251 from the respective slot 1152 or 1155 into the respective main slot 1147 and moving upper siderails 1179 and seat frame 1092 to position bolts 1251 in the desired slot 1152 or 1155.
The placement of the pivotal connections of upper and lower siderails 1179 and 1176 to the respective side members 1098 and 1101 of backrest frame 1089 and side members 1098 and 1101 of backrest frame 1089, and side members 1122 and 1125 of seat frame 1092 must be designed such that the chair folds properly and opens to the desired positions as previously described for the other embodiments of the chair. The chair can be retained in the folded position by a pair of pins (not shown) inserted through appropriately placed apertures (not shown) as also previously described.
Footrest frame 1095 is retained in the desired elevational position relative to seat frame 1092 by means of respective variable incline ratchet assemblies 1308 each comprising an elongate ratchet plate 1311 having respective front and rear portions 1314 and 1317, a longitudinally extending main slot 1320, a plurality of offset angled locking slots 1323, 1326, and 1329, and an aperture 1332. Variable incline ratchet assemblies 1308 further comprise a U-shaped release plate 1335 having a central portion 1338 with an aperture 1341 therethrough and respective dependent legs 1344 and 1347. Front portions 1314 of ratchet plates 1311 are pivotally connected to side members 1164 and 1167 of footrest frame 1095 using respective bolts 1350 each having an internally threaded end 1353, nylon washers 1356, and screws 1359 which thread into threaded ends 1353. Rear portions 1317 of ratchet plates 1311 and release plate 1335 are pivotally connected to side members 1098 and 1101 of backrest frame 1089 using respective screws 1362 and nylon washers 1365. Variable incline ratchet assemblies 1308 operate in a similar manner to that of variable incline ratchet assemblies 990 as shown in
A rectangular, longitudinally flexible seat 1368 of similar construction to seat 174 includes a head end 1371, a foot end 1374, and typically has a canvas top layer 1377 and a canvas bottom layer 1380 which surround a padded core 1383 such as sheet foam, which extends for most of the length thereof. Head end 1371 is retained in place by a portion thereof 1386, which contains no padded core 1383, which is completely wrapped around upper cross member 1107 of backrest frame backrest frame 1089 and retained such as by a riveted or sewn seam 1389. Foot end 1374 is retained in place by a portion thereof 1392 which contains padded core 1383, which is completely wrapped around upper cross member 1131 of seat frame 1092 and retained such as by a riveted or sewn seam 1395, with padded core 1383 acting to cushion a user's legs.
Many variations of the chair and chaise lounge are possible while staying within the same inventive concept. For example, various stops such as cylindrical or of S-shaped cross-section can be bolted or otherwise connected to the respective frames to more easily retain such frames in the folded or stowed position. Likewise, the telescoping siderail tubes can be made to be infinitely adjustable by slitting the outermost tube and placing a cam lock clamp or other such clamp therearound to clamp such outermost tube to the innermost tube, eliminating the spring clip and finite number of hole positions.
Whereas this invention is here illustrated and described with reference to embodiments thereof presently contemplated as the best mode of carrying out such invention in actual practice, it is to be understood that various changes may be made in adapting the invention to different embodiments without departing from the broader inventive concepts disclosed herein and comprehended by the claims that follow.
This application is a continuation-in-part of U.S. patent application Ser. No. 09/014,062 filed Jan. 27, 1998 now issued as U.S. Pat. No. 6,354,657 on Mar. 12, 2002.
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| Number | Date | Country | |
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| Number | Date | Country | |
|---|---|---|---|
| Parent | 09014062 | Jan 1998 | US |
| Child | 09796851 | US |
