Boulder, CO, United States
Boulder, CO, United States

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Patent
Sunrise Medical | Date: 2017-03-08

The present invention discloses a connection means for connecting two parts with a predetermined angular alignment. The connection means comprises a first part (1) comprising a first surface (3) and a second surface (4), wherein the first surface (3) is a first reference surface. The connection means further comprises a second part (2) adapted to receive at least a portion of the first part (1) and comprising a third surface (5) and a fourth surface (6), wherein the third surface (5) is a second reference surface. At least one of the second and fourth surfaces (4, 6) is provided with at least one asymmetry feature, in particular in form of an inclination deviation and/or an elevated portion. When the first part (1) is inserted into the second part (2), the second and fourth surfaces (4, 6) contact each the asymmetry feature forces the first and second reference surfaces into close contact with each other such that the first and second reference surfaces determine the predetermined angular alignment of the first and second parts (1, 2).


The present invention refers to a wheel mounting assembly (5, 15) for mounting a wheel (3) of in particular a wheelchair (1) to a frame (2), comprising at least one holding means (6, 7; 16, 17) attachable to the frame (2) to hold n distance means (8, 18) and one wheel axle bearing means (9, 19), with the wheel axle bearing means (9, 19) being fitted together with the n distance means (8, 18) in any one of n + 1 different positions within a fitting plane defined by the holding means (6, 7; 16, 17), and n being an element of the natural numbers. In addition, the present invention refers to a wheelchair with two of such wheel mounting assemblies.


Patent
Sunrise Medical | Date: 2015-03-02

An adjustable backrest support provides a seat back angle adjustment that eases the task of adjusting the position of a wheelchair backrest while keeping the user seated in their wheelchair. In one embodiment, the adjustable backrest support includes a strut, an adjuster ring, an adjusting barrel nut, an angle adjuster, and a clamping system including a clamp. The clamp may include clamping screws that permit adjustment of the seat back reclining angle the angle or the seat back lateral position when loosened.


Patent
Sunrise Medical | Date: 2015-03-16

A caster having a four bar suspension configured for use with a wheelchair includes a caster wheel supported for rotation by a caster fork. The caster fork forms one link of the four bar suspension and is pivotally connected to an upper link. The upper link is pivotally mounted to and generally coaxially disposed about a caster stem housing. A lower link pivotally mounted to the caster stem housing and the caster fork. A resilient member is disposed between the caster stem housing and the lower link.


Patent
Sunrise Medical | Date: 2015-09-02

The present invention refers to a wheelchair comprising a frame (20) having spaced apart side frame tubes; a strut (30, 130, 230, 330) connected to the frame; and an adjustable backrest support (10, 10, 10, 400) engaging the strut (30, 130, 230, 330) such that the adjustable backrest support (10, 10, 10, 400) pivots angularly about the strut (30, 130, 230, 330) and being configured to be fixed in one of a plurality of angled positions and moveable along the strut (30, 130, 230, 330) and configured to be fixed in one of a plurality of lateral positions between the side frame tubes. It also refers to an adjustable wheelchair backrest assembly and an adjustable backrest support.


Patent
Sunrise Medical | Date: 2016-03-14

A seat cushion includes a central cushion member between two lateral cushion members. The central cushion member is placed on at least one central seat member. The lateral cushion members are each placed on lateral seat members. At least one of the two lateral seat members is removable from the seat assembly, together with the respective lateral cushion member placed thereon. The removable lateral seat member includes a profile for attaching the lateral cushion member. The removable lateral seat member may also include a through-hole, configured to accept a pivot pin, to provide a pivot connection. A slot, configured to accept a hook, may be provided to provide a latch connection.


Patent
Sunrise Medical | Date: 2016-02-17

The present invention refers to a wheelchair (10a) comprising left and right side frames (42, 44; 242, 244; 342, 344), each side frame having a lower side frame member (46, 50) and an upper side frame member (48, 52; 248, 252; 348, 352; 452); and a folding mechanism (40) for connecting the left and right side frames (42, 44; 242, 244; 342, 344) to each other in a folding and unfolding relationship, the folding mechanism including: cross struts (56; 256; 356; 456) rotatably connected to the side frame members (42, 44; 242, 244; 342, 344), the cross struts including one or more cross struts from the left side frame pivotally connected to one or more cross struts from the right side frame; hinge links (66, 68; 266, 268; 366, 368; 466, 468) connected to the side frame members (42, 44; 242, 244; 342, 344), the hinge links each having a first end (70, 78) pivotally connected to the side frame member and a distal end (72, 80), wherein pivoting the hinge links relative to the side frame members causes the left and right side frames to move closer together in a folding movement or farther apart in an unfolding movement, and a lock (100 - 124; 200 - 208; 300 - 310; 400 - 412) for locking the hinge links (66, 68; 266, 268; 366, 368; 466, 468) together when the folding mechanism is unfolded to form a rigid truss (126) between the left and right side frame members (42, 44; 242, 244; 342, 344), thereby fixing the distance between the left and right side members at a widest point of rotation established by the hinge links.


Patent
Sunrise Medical | Date: 2015-09-28

An electric circuit is provided with a single jack for connection to either a first remote powered device via a first plug or a second remote unpowered device via a second plug. A power requirement detection circuit is provided for generating a control signal representing whether the connected plug is the first plug or the second plug. A normally deactivated switch is connected between the power source and the jack and is operable to supply power to the jack when activated. A switch activation circuit is responsive to the control signal for actuating the switch when the first plug is connected.


Patent
Sunrise Medical | Date: 2015-11-25

The invention relates to a backrest assembly (1, 100, 200) for a wheelchair with a backrest frame (20, 120, 220) pivotally connected to a seat or seat frame (10), a carrying means (30, 130, 230) provided by or attached to the backrest frame (20, 120, 220), a rotating means (40, 40, 140, 240) rotatable secured to the carrier means (30, 130, 230), a first sliding means (50, 150, 250) slidable connected to the backrest frame (20, 120, 220) on the rear side of the backrest assembly (1, 100, 200) and connected to the rotating means (40, 40, 140, 240) via a first mechanical link, a second sliding means (60, 60,160, 260) slidable secured to the backrest frame (20, 120, 220) on the front of the backrest assembly (1, 100, 200) and connected to the rotating means (40, 40, 140, 240) via a second mechanical link, and an actuator (70, 170, 270) for adjusting the backrest assembly (1, 100, 200) between an upright and reclined position with a recline angle, the recline angle driving the second sliding means (60, 60,160, 260) to perform a sinusoidal movement.


Patent
Sunrise Medical | Date: 2016-09-14

The present invention refers to a seat assembly (1) for a passenger conveyance device, especially of a wheelchair or of a scooter, with a seat frame for carrying a seat cushion, wherein the seat cushion comprises a central cushion member (5), placed on at least one central seat member (750), between two lateral cushion members (3, 7), each placed on a lateral seat member (300, 700), with at least one of the two lateral seat members (300, 700) being removable from the seat assembly together with the respective lateral cushion member (3, 7) placed thereon.

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