Clamping assembly
View Patent ↗The present application discloses several embodiments of clamping devices and quick connect attachment devices. In one embodiment, a clamping device includes two wedge members that are forced together to engage a frame component. In another embodiment, a quick connect attachment or latching assembly includes components that slide together and are then fixed, by moving a protrusion into a recess.
1. A wheelchair comprising:
a frame;
a plurality of wheels that are adapted to support the frame relative to a supporting surface;
a seat component for supporting an occupant, the seat component including at least one of a seat bottom and a backrest; and
at least one mounting assembly for mounting the seat component onto the frame, the at least one mounting assembly comprising:
a bracket that partially surrounds a portion of the frame, wherein the bracket comprises a first portion and a second portion, each portion extending away from the frame when the at least one mounting assembly is mounted to the frame;
a first wedge member comprising a bracket contacting surface and having an inclined surface;
a second wedge member comprising a bracket contacting surface, having an inclined surface, and a frame contacting surface;
a fastener for attaching the first and second wedge members to the bracket, the fastener comprising one or more bracket contacting surfaces; and
wherein the inclined surface of the first wedge member contacts the inclined surface of the second wedge member when the wedge members are mounted to the bracket.
2. The wheelchair of claim 1 wherein the fastener exerts an increasing compressive force on the first and second wedge members as the fastener is tightened; wherein as the compressive force exerted on the first and second wedge member is increased, the frame contacting surface of the second wedge member is pressed against a portion of the frame, the pressing of the second wedge member against the portion of the frame retains the at least one mounting assembly on the frame; and wherein a portion of the seat component is attached to the at least one mounting assembly.
3. The wheelchair of claim 2 , wherein the fastener has a longitudinal axis and the first portion of the bracket prohibits movement of the second wedge member along the longitudinal axis of the fastener as the fastener is tightened.
4. The wheelchair of claim 3 , wherein the first wedge member comprises a fastener channel shaped and configured to prohibit movement of the first wedge member in a direction transverse to the longitudinal axis of the fastener when the fastener is tightened.
5. The wheelchair of claim 4 , wherein the second wedge member comprises a fastener channel shaped on configured to permit movement of the second wedge member in a direction transverse to the longitudinal axis of the fastener when the fastener is tightened.
6. The wheelchair of claim 2 , wherein the fastener has a longitudinal axis and the first portion of the bracket prohibits movement of the first wedge member along the longitudinal axis of the fastener as the fastener is tightened.
7. The wheelchair of claim 1 wherein the fastener includes a nut which has a protruding boss, and wherein the protruding boss of the nut is accepted within a recessed fastener seat defined within at least one of the first or second wedge members.
8. The wheelchair of claim 1 wherein a fastener channel is defined within the first and second wedge members, the fastener channel being adapted to allow the fastener to pass through the first and second wedge members;
wherein the fastener has a longitudinal axis; and
wherein the fastener channel defined through at least one of the first or second wedge members is adapted to allow for movement of the wedge member both along the longitudinal axis of the fastener and in a direction transverse to the longitudinal axis of the fastener.
9. The wheelchair of claim 1 wherein a fastener channel is defined within the first and second wedge members, the fastener channel being adapted to allow the fastener to pass through the first and second wedge members;
wherein the fastener has a longitudinal axis; and
wherein the fastener channel defined through at least one of the first or second wedge members is adapted to allow for movement of the wedge member only along the longitudinal axis of the fastener.
10. The wheelchair of claim 1 wherein the frame contacting surface of the second wedge member has a generally curved profile.
11. The wheelchair of claim 1 wherein the seat component further comprises a latching assembly for attaching the seat component to the at least one mounting assembly.
12. The wheelchair of claim 11 wherein the at least one mounting assembly includes an attachment member, and wherein the latching assembly selectively engages with the attachment member of the at least one mounting assembly for attaching the seat component to the at least one mounting assembly.
13. The wheelchair of claim 1 , wherein the fastener comprises a head portion, a thread portion, and a nut configured to be threaded onto the thread portion, and wherein the head portion of the fastener acts on the first portion of the bracket when the at least one mounting assembly is mounted to the frame and the nut acts on the second portion of the bracket when the at least one mounting assembly is mounted to the frame.
14. The wheelchair of claim 13 , wherein the fastener comprises a shank configured to mate with an opening in the first portion of the bracket to prohibit rotation of the fastener relative to the bracket when the at least one mounting assembly is mounted to the frame.
15. The wheelchair of claim 1 , wherein the fastener comprises a head portion and a nut, the head portion and the nut each having a bracket contacting surface, and wherein the bracket contacting surfaces of the first wedge member and the nut contact opposing sides of the second portion of the bracket when the at least one mounting assembly is mounted to the frame, and wherein the bracket contacting surfaces of the second wedge member and the head portion contact opposing sides of the first portion of the bracket when the at least one mounting assembly is mounted to the frame.
16. A seating assembly for use with a wheelchair comprising:
a seat component, the seat component including at least one of a seat bottom and a backrest;
a frame; and
at least one mounting assembly attached to a portion of the seat component for mounting the seat component onto the frame, the at least one mounting assembly comprising:
a bracket that partially surrounds a portion of the frame, wherein the bracket comprises a first portion and a second portion, each portion extending away from the frame when the at least one mounting assembly is mounted to the frame;
a first wedge member comprising a bracket contacting surface and having an inclined surface;
a second wedge member comprising a bracket contacting surface, having an inclined surface, and a frame contacting surface;
a fastener for attaching the first and second wedge members to the bracket, the fastener comprising one or more bracket contacting surfaces; and
wherein the inclined surface of the first wedge member faces toward the inclined surface of the second wedge member when the wedge members are mounted to the bracket, and wherein the fastener exerts an increasing compressive force on the first and second wedge members as the fastener is tightened;
wherein as the compressive force exerted on the first and second wedge member is increased, the frame contacting surface of the second wedge member is pressed against a portion of the frame, the pressing of the second wedge member against the portion of the frame retains the at least one mounting assembly on the frame.
17. The seating assembly of claim 16 wherein the fastener includes a nut which has a protruding boss, and wherein the protruding boss of the nut is accepted within a recessed fastener seat defined within at least one of the first or second wedge members.
18. The seating assembly of claim 16 wherein a fastener channel is defined within the first and second wedge members, the fastener channel being adapted to allow the fastener to pass through the first and second wedge members;
wherein the fastener has a longitudinal axis; and
wherein the fastener channel defined through at least one of the first or second wedge members is adapted to allow for movement of the wedge member both along the longitudinal axis of the fastener and in a direction transverse to the longitudinal axis of the fastener.
19. The seating assembly of claim 16 wherein a fastener channel is defined within the first and second wedge members, the fastener channel being adapted to allow the fastener to pass through the first and second wedge members;
wherein the fastener has a longitudinal axis; and
wherein the fastener channel defined through at least one of the first or second wedge members is adapted to allow for movement of the wedge member only along the longitudinal axis of the fastener.
20. The seating assembly of claim 16 wherein the frame contacting surface of the second wedge member has a generally curved profile.
21. The seating assembly of claim 16 wherein the seat component further comprises a latching assembly for attaching the seat component to the at least one mounting assembly.
22. The seating assembly of claim 21 wherein the at least one mounting assembly includes an attachment member, and wherein the latching assembly selectively engages with the attachment member of the at least one mounting assembly for attaching the seat component to the at least one mounting assembly.
23. A clamping device, the clamping device comprising:
a bracket that partially surrounds a component, wherein the bracket comprises a first portion and a second portion, each portion extending away from the component when the clamping device is mounted to the component;
a first wedge member comprising a bracket contacting surface and an inclined surface;
a second wedge member comprising a bracket contacting surface, an inclined surface, and a component contacting surface; and
a fastener for attaching the first and second wedge members to the bracket, the fastener comprising one or more bracket contacting surfaces;
wherein the inclined surface of the first wedge member contacts the inclined surface of the second wedge member when the wedge members are mounted to the bracket, and wherein the fastener exerts an increasing compressive force on the first and second wedge members as the fastener is tightened;
wherein as the compressive force exerted on the first and second wedge member is increased, the component contacting surface of the second wedge member is pressed against a portion of the component, the pressing of the second wedge member against the portion of the component retaining the clamping device onto the component;
wherein a fastener channel is defined within the first and second wedge members, the fastener channel being adapted to allow the fastener to pass through the first and second wedge members;
wherein the fastener has a longitudinal axis; and
wherein the fastener channel defined through at least one of the first or second wedge members is adapted to allow for movement of the wedge member only along the longitudinal axis of the fastener.
24. The clamping device of claim 23 wherein the fastener includes a nut which has a protruding boss, and wherein the protruding boss of the nut is accepted within a recessed fastener seat defined within at least one of the first or second wedge members.
25. The clamping device of claim 23
wherein the fastener channel defined through at least one of the first or second wedge members is adapted to allow for movement of the wedge member both along the longitudinal axis of the fastener and in a direction transverse to the longitudinal axis of the fastener.
26. The clamping device of claim 23 wherein the component contacting surface of the second wedge member has a generally curved profile.
27. A seating assembly for use with a wheelchair comprising:
a seat component, the seat component including at least one of a seat bottom and a backrest;
a frame;
at least one mounting assembly attached to a portion of the seat component for mounting the seat component onto the frame, the at least one mounting assembly comprising:
a bracket that partially surrounds a portion of the frame, wherein the bracket comprises a first portion and a second portion, each portion extending away from the frame when the at least one mounting assembly is mounted to the frame;
a first wedge member comprising a bracket contacting surface and an inclined surface;
a second wedge member comprising a bracket contacting surface, an inclined surface, and a frame contacting surface;
a fastener for attaching the first and second wedge members to the bracket, the fastener comprising one or more bracket contacting surfaces, and wherein the inclined surface of the first wedge member faces toward the inclined surface of the second wedge member when the wedge members are mounted to the bracket, and wherein the fastener exerts an increasing compressive force on the first and second wedge members as the fastener is tightened;
wherein as the compressive force exerted on the first and second wedge member is increased, the frame contacting surface of the second wedge member is pressed against a portion of the frame, the pressing of the second wedge member against the portion of the frame retains the at least one mounting assembly on the frame; and
a latching assembly for attaching the portion of the seat component to the at least one mounting assembly, wherein the at least one mounting assembly includes an attachment member, and wherein the latching assembly includes a body configured to slide over and at least partially surround a portion of the attachment member and a latching control configured to selectively engage the attachment member for retaining the portion of the seat component to the at least one mounting assembly.