JPH01317437A - Reclining chair - Google Patents

Abstract

PURPOSE: To modify a conventional manually-driven recling chair to a power- driven one by attaching a specified substrate linking device to the conventional chair. CONSTITUTION: A substrate has one pair of linking control plates 40 which has a laterally projecting part 42 for receiving a lower applied rail 34 of a hinge 33 for reclining. Attaching the control plate of a conventional reclining chair is carried out by relaxing a clamping tool 43 for connecting the hinge to an applying block 37 to slide a slot 45 on the lateral projecting part and clamping the tool 43 again. Thus, the substrate is attached to the chair. A linking control plate 40 is bonded to the substrate by one pair of long links 47. The links 47 are bonded to an ear part 49 which stands vertically on the substrate. A pivot 61 of a U shape frame 65 bonds leg parts 56 and 57 to the linking control plate 40. An actuator integrated into the substrate is connected rotatably by a blanket 96 and driven by a motor-gear driving unit.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a power driven reclining lift chair.

Conventional technology and its problems Mainly for elderly and disabled people,
A variety of reclining lift chairs are available that have been developed to assist a person in transitioning from a sitting to a standing position. With further development, elevators
The lift chair is designed to provide a reclining state in which the footrest supporting the feet is laid down. A variety of manual recliners have been available as conventional furniture for many years. To date, a power-operated base-to-chain device has not been available that easily converts a conventional recliner chair into a power-driven recliner lift chair.

SUMMARY OF THE INVENTION The present invention provides a base-to-chain device that can be easily attached to existing manual recliners to transform the chair into a power-driven recliner/lift chair. . The base of the present invention includes a simplified chain that employs spaced chain control plates as intermediate pivot points between the base and the drive chain that lifts and tilts the chair. act. The control plate is easily attached to the lower hinge mounting rail of a standard recliner hinge assembly by a bracket mounted thereon. Currently on,
The fasteners securing the recliner hinge to the chair are simply moved back a short distance so that the groove or slot in the control plate is easily located between the hinge and the frame of the chair.

The base drive chain is easily attached to the upper hinge chain mounting rail. Unlike the power-driven actuators that drive the seat or part of the chair frame in traditional power-driven recliner lift chairs,
Driving the reclining chain through various ranges in lift mode and recline mode. As a result, like a conventional reclining lift chair,
Squeaks that occur when lifting and reclining forces are transmitted to a distanced location on the wooden frame rather than to the hinges are reduced.

The chain control plate has a somewhat thicker area (and can be moved by stroking it next to the arm of the long link that connects the plate to the base).
The surface provides lateral stability to the link and minimizes twisting and bending of the link.

A chair frame design is also provided that includes recesses in the corners of the chair frame around the base frame, the recesses being filled with foam rubber to eliminate pinch points. The foam rubber covers the recess,
Also provides backing for the chair upholstery.

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a typical reclining chair with a seat 16, a backrest 15, and a footrest 17.

Figures 1, 2 and 5 show lower ends 16 and 18 (Figure 6).
7 shows side frames 10 and 11 of a recliner having a front vertical frame member 12 and a rear vertical frame member 14 (FIG. 7). The front and rear vertical members 12 and 14 are interconnected by generally horizontally extending connecting frame members 20 and 2OA (FIG. 7);
The combined frame members 20 and 2OA are fastened together into a unit and define a recess 24 above the frame ends 16 and 18, which recess is occupied by foam rubber 30. A transverse frame member 22 interconnects the two side frames. Member 22, together with the front and rear frame members and member 20, provides the recess 24 above horizontal base frame members 26 and 28 (FIGS. 6 and 7). The recess is filled by a foam rubber pad 30 as shown in FIG. 2, which pad 30 is flush with the outer surface of the frame member and flush with the ends 16 and 18 and the bottom of the frame 20. Therefore, the foam rubber pad is covered with an upholstered cover9.
5 and eliminates the finger pinching position between the base frame and the base.

Conventional non-powered recliners - for boat fishing, include a hinge chain 33 for the purpose of reclining motion and adjusting the position of the footrest and seat back assembly. The illustrated reclining hinge chain 33 connects the seat and backrests 13 and 15 secured in a fixed relationship.
Leggett Plan) 8500 is a two-way hinge.

Alternatively, a six-way hinge in which the backrest 15 is movable relative to the seat 13, such as the Leggett Pratt Model 8254, can be employed.

A standard hinge 66 includes an upper mounting rail 2 and a lower mounting rail 34 (FIGS. 1A, 2, and 5). The mounting rail 32 is attached to the side frame 65 of the seat 13, and the rail 34 is normally attached to the side frames 10 and 1 of the chair.
It is attached to the mounting block 67 on 1. Therefore, the seat and backrest are generally part of the side panel 1 of the chair.
By hinge chain connections to 0 and 11 it is suspended between the side frames in engagement with the floor.

The base of the present invention (FIG. 1A) includes a ground engaging frame 19. The frame has a frame member 2 at its rear.
It comprises two parallel frame members 27 interconnected by 9, the frame members 29 having two legs 61.
It has two legs 28. The frame member 27 has at its front an outwardly bent leg 26 with a foot 61 also made of rubber. The frame members are interconnected by thin web members 67 which provide flexibility to the base. The base includes a pair of spaced chain control plates 40 having offset laterally overhanging portions 4 that receive the lower mounting rails 64 of the recliner hinge.
It has 2. As shown in FIG. 5, assembly of the control board into existing recliners involves loosening the fasteners 43 attaching the hinge to the mounting block and sliding the slots 45 on the side outriggers over the fasteners. and fastener 4
It is completed by re-tightening 6. The base is then attached to the chair. Other connections of the base chain to the chair will be described later.

The chain control plate 40 is connected to the base by a pair of elongated links 47, which are connected to ear members 49 that are upright on the base and have outwardly bent flanges 55;
The flange 55 provides support for the lower rear edge of the control plate when the chair is in the normal seat position of FIG. A pivot 51 connects the arm or link 47 to the base, and a pivot 53 connects the link to the control plate 40.

Another means of connection between the base and the chain control plate is the web 68.
It comprises a U-shaped frame 65 having legs 56 and 57 connected to upper upright ears 49 (FIG. 6). Pivot 61 connects legs 56 and 57 to chain control plate 4
Bind to 0. Connection of the base to the upper hinged rail 32 is provided by a pair of spaced driven links 70 connected to flying links 72. The connection of link 72 to rail 32 is best shown in FIGS. 1A, 5 and 7 and is easily accomplished by moving fastener 101.

Integral to the base is a conventional powered actuator (FIG. 4) which cooperates with a screw housing 82 pivotally connected to a bracket 96, such as a U-link. Screw 8 that drives driven link 70
0, and a cross member 84 to which a bracket 96 is joined is coupled to the driven link 70. The screws are driven by a motor and gear drive unit that is pivotally coupled to the base by vias 88.

The close proximity of the long arm 47 to the chain control plate 40 restrains the arm so that even when the chair is moved, the arm 47
It is designed not to bend or twist.

In use, the rear corner 90 of the chain control plate rests on the outwardly bent flange 55 of the ear 49 when the chair is in the normal sitting position shown in FIG. Further, the arm 56 rests on the arm 27 and the chain is supported on the base frame in the folded state shown in FIG. 3. The base provided with the chair is an easily attachable base with a chain that uses existing reclining hinge chain connection means to the chair for assembly of the base to the chair. Provide a table. This makes it very easy to assemble the base to the chair. It can be easily done on site without any special tools.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the chair portion of the reclining lift chair, FIG. 1A is a perspective view of the base of the present invention, and FIG. 2 is a side elevational view of the reclining mode portion of the reclining lift chair according to the present invention. FIG. 3 is a side elevation view of a chair embodying the base of the present invention when the chair is in a semi-reclined state; FIG. 4 is a plan view of the base when the chair is in a normal sitting position; 5 is a front view of the base, FIG. 6 is a sectional view of the base taken along line 6--6 in FIG. 6, and FIG. 7 is a side elevational view of the chair in the lifted state. 10.11...Side frame 12.14...Front and rear vertical members 20.2OA...Joining frame 22.26.28...Frame member 60...Bud 62...Upper mounting rail 66... Hinge chain 34... Lower mounting rail 40... Control board 47... Link 49
...Ear-like member 55...Flange 65...
U-shaped frame 70... Driven link 72... Flying link 80... Screw 82... Screw housing (4 people outside)

Claims (11)

[Claims] (1) The seat comprises a seat frame, a side panel, and a reclining chain including upper and lower hinge mounting rails, the upper hinge mounting rail being movable relative to the side panel. A recliner connected to a frame, the lower hinge mounting rail of which is connected to the side panel, comprising: a base frame having a member that rests on the floor; an upper connecting portion extending vertically; and a plane surface of the upper portion. a vertically extending lower connecting portion in a plane parallel to the plane and offset from the plane of the upper portion by a lateral overhang; and connected between the upper mounting rail and the control plate means; a driven link and a flying link rotatably coupled to each other; base connecting link means rotatably connecting the control plate means to the base at two spaced apart points; means for removably coupling chain control plate means to said upper and lower hinged rails; and means coupled between said base frame and said driven link to enable said hinge chain of said chair to operate in recline and lift modes. A reclining chair comprising an actuator driven between the two, and a lift base consisting of. (2) In the reclining chair according to claim 1, the base connecting means includes a pair of first links having one end rotatably connected to the frame near the rear of the frame; a U-shaped support link having two laterally separated legs; a web member fastened to the base frame and extending from one side of the base frame to the other; a web member rotatably connected to the web at one end and adapted to be rotatably connected to the control plate remote from the base frame; and means for removably connecting means to the lower hinged rail, the remote end of the flying link being connected to the upper hinged rail. (3) In the reclining chair according to claim 2, the means on the control plate for removably connecting the control plate to the lower hinge mounting rail includes a bracket fixed to the control plate. wherein said bracket has fastening means for quick connection to said lower hinged rail. (4) The reclining chair according to claim 1, wherein the horizontally extending portion receives the lower hinge mounting rail between upper and lower planes of the horizontally extending portion. (5) A recliner chair according to claim 1, wherein the base has upright ears having horizontally extending surfaces, and when the chair is in a normal sitting position, the lateral overhangs A reclining seat, wherein a portion is supported in engagement with the horizontally extending surface, and the chair is supported by the horizontally extending surface. (6) A base for a reclining chair, which converts the chair into a reclining lift chair, comprising: a base frame supporting the chair at all points on the supporting surface; and two spacings. a pair of chain control plate means dimensioned to provide spaced apart pivot points, each between said pivot point and a spaced apart pivotable connection portion on said base frame; a connected link; another pivot point and driven chain for connecting said control plate means to an upper hinge mounting rail of a reclining hinge mechanism; and a hinge mechanism of said control plate means connected to said driven chain; a powered actuator for raising and reclining the chair by connection thereto, said control plate means having a bracket rigidly connected at two spaced points to a lower hinged rail of said mechanism. A foundation that is characterized by: (7) A base according to claim 6, wherein said control plate means has an outwardly bent flange, and means provided on said base frame provide support for said flange. The base. (8) A chair having a seat, a base frame having a horizontal floor-engaging member connected to the seat and a chain providing movement of the seat relative to the base, wherein the chair terminates at a lower end. a chair frame having a front and rear vertical member overhanging a base frame, the chair frame being connected between the front and rear vertical members and the lower end of the vertical member; a bottom side frame member positioned a short distance above the base frame, and a bottom side frame member positioned proximate the base frame between the side member and the front and rear members, respectively; A chair comprising: a pad for eliminating a pinch point between the base frame and the base frame. (9) a seat frame, a side panel, and a reclining hinge chain having upper and lower hinge mounting rails, the upper hinge mounting rail being connected to the seat frame movable relative to the side panel; , a recliner in which a lower hinge mounting rail is connected to the side panel, comprising: a base frame having a member that rests on the floor; a chain control plate means; and between the upper mounting rail and the control plate means. a mutually rotatably connected driven link and a flying link connected to each other; base connecting link means rotatably connecting said control plate means to said base at two spaced points; means for removably coupling chain control plate means to said upper and lower hinged rails; and means coupled between said base frame and said driven link;
an actuator for driving the hinge chain between a recline mode and a lift mode by transmitting a force to the seat frame through the control plate means for the recline mode and the lift mode; A reclining chair featuring (10) A base for a reclining chair, which converts the chair into a reclining lift chair, comprising: a base frame supporting the chair at all points on the support surface; and an upper connecting portion extending vertically. a vertically extending lower connecting portion, and a laterally extending portion connecting the upper and lower connecting portions and dimensioned to provide two spaced apart pivot points. a pair of chained control plate means; another pivot point and driven link for connecting the control plate means to the upper hinge mounting rail of the reclining hinge mechanism; a powered actuator for effecting lifting and reclining of the chair via a connection to a hinge mechanism, the control plate means being secured to a lower hinge mounting rail of the mechanism at two spaced points; A base comprising a bracket to be connected. (11) In the base according to claim 10,
The base includes upright ears, and a laterally extending portion of the control plate engages and is supported on the ears when the chair is in an unraised condition. There, the base.