Collapsible descent and ascent aids for pets

1. An apparatus for aiding a pet in descent and ascent of a bed comprising

a sleeve configured to be positioned between a mattress and a mattress support on a bed, the sleeve having an open end and flanges surrounding the open end, and

a device sized to fit within the sleeve and configured to be pulled from sae the open end of the sleeve and to extend toward a floor to provide ease of ascent and descent of a pet to a top of the mattress and to be pushed into the open end of the sleeve,

wherein the flanges surrounding the open end inhibit the open end of the sleeve from being pushed between a mattress and mattress support when the device is pushed into the open end of the sleeve.

2. An apparatus as claimed in claim 1 wherein the device is a set of steps.

3. An apparatus as claimed in claim 2 wherein the set of steps collapse to a flat configuration for storage within the sleeve.

4. An apparatus as claimed in claim 2 wherein the set of steps include a main plane projecting from the sleeve to define a step at the height near the bottom of the mattress, and another plane that can be deployed from the main plane to define a step at a different height than the bottom of the mattress.

5. An apparatus as claimed in claim 4 wherein the other plane is suspended below the main plane by pivoting links to the main plane.

6. An apparatus as claimed in claim 5 wherein the other plane has at least one leg pivotally mounted so the leg can pivot downward from a horizontal, stored position to a vertical, deployed position.

7. An apparatus as claimed in claim 4 wherein the other plane is mounted to the main plain by pivoting links, the planes have trunnions with a cross section having flat vertical sides and the links have bearings in which the trunnions are mounted, the bearings having a wide portion allowing rotation of an associated trunnion within so the link rotates with respect to the plane, and a narrow portion so the flat vertical sides of the trunnion can nest in the narrow portion to restrain rotation of the link in a deployed step configuration.

8. An apparatus as claimed in claim 4 wherein the main plane has reinforcements to inhibit downward bowing as the main plane is deployed from the sleeve.

9. An apparatus as claimed in claim 2 in which the steps have a textured tread surface to aid in increasing friction.

10. An apparatus as claimed in claim 1 wherein the device is a ramp.

11. An apparatus as claimed in claim 10 wherein the ramp has an elevated plane and a pivoting plane.

12. An apparatus as claimed in claim 11 wherein the elevated plane is mounted to the pivoting plane by a turntable for enabling rotation of the pivoting plane about a vertical axis and the turntable has links to the pivoting plane to raise a top end of the pivoting plane above the elevated plane.

13. An apparatus as claimed in claim 10 wherein the ramp includes a primary ramp plane and a secondary sleeve to receive the primary ramp plane.

14. An apparatus as claimed in claim 10 wherein the ramp has a textured tread surface to aid in increasing friction.

15. An apparatus for aiding a pet in descent and ascent of a bed comprising

a sleeve configured to be positioned between a mattress and a mattress support on a bed, the sleeve having an open end and flanges surrounding the open end, and

a set of steps sized to fit within the sleeve and configured to be pulled from the open end of the sleeve and to extend toward a floor to provide ease of ascent and descent of a pet to a top of the mattress, the set of steps including a main plane projecting from the sleeve to define a step at the height near the bottom of the mattress, and another plane that can be deployed from the main plane to define a step at a different height than the bottom of the mattress,

wherein the other plane is elevated above the main plane by pivoting links to the main plane.

16. An apparatus as claimed in claim 15 wherein the other plane nests within a gap in the main plane and the pivoting links nest within slots in the main plane for storage within the sleeve.

17. An apparatus for aiding a pet in descent and ascent of a bed comprising

a sleeve having an open end from which a set of steps can be pulled and having flanges surrounding the open end, the sleeve configured to be positioned between a mattress and a mattress support on a bed, and

the set of steps sized to fit within the sleeve, having a textured tread surface, and configured to be pulled from the open end of the sleeve to provide ease of ascent and descent of a pet to a top of the mattress, wherein the set of steps can collapse to a flat configuration for storage within the sleeve,

the set of steps including a main plane projecting from the sleeve to define a step at the height of the bottom of the mattress and having reinforcements to inhibit downward bowing as the main plane is deployed from the sleeve, and upper and lower steps that can be deployed from the main plane to define a step at a height above and below the bottom of the mattress respectively, wherein the lower step is suspended below the main plane by pivoting links to the main plane and the upper step is elevated above the main plane by pivoting links to the main plane and wherein, when stored within the sleeve, the upper step nests within a gap in the main plane and the pivoting links of the upper step nest within slots in the main plane.