Housekeeping cart with wall protectors

Patent metadata

Field	Value
Publication number	US-10093335-B2
Application number	US-201715593838-A
Country	US
Kind code	B2
Filing date	May 12, 2017
Priority date	May 13, 2016
Publication date	Oct 9, 2018
Grant date	Oct 9, 2018

Abstract

The present invention relates to a mobile housekeeping cart having a base supported by casters and wheels, where the casters have user-accessible swivel-lock levers to aid in controlling the motion of the mobile cart. Brackets extend downward from the corners of the base as housings for wall-protecting corner rollers. The corner rollers are positioned at a sufficiently low height so that the adjustable shock absorption rollers will impact base trim on walls instead of the wall surfaces themselves. The cart also has a main body storage area with an adjustable shelf, and a top storage area with a top hood. Handles are provided for user control of the cart, as well as to provide an attachment area for removable side storage bags, as well as providing attachment of tools and cleaning supplies.

First claim

What is claimed is:

1. A bumper assembly for attachment onto a cart comprising:
a first corner bumper housing;
a second corner bumper housing;
an attachment bar, said attachment bar having at least one horizontal crossbar, said at least one horizontal crossbar having a first end and a second end; said first end of said horizontal crossbar coupled to a first end of a first vertical attachment bar, said second end of said at least one horizontal crossbar coupled to a first end of a second vertical attachment bar, said first and second vertical attachment bars each having a second end with threading; said first corner bumper housing coupled to said first vertical attachment bar, said second corner bumper coupled to said second vertical attachment bar;
at least one first bumper coupled to said first corner bumper housing by a first axle;
at least one second bumper coupled to said second corner bumper housing by a second axle;
a first nut coupled to said second end of said first vertical attachment bar; and
a second nut coupled to said second end of said second vertical attachment bar;
wherein coupling of said first nut to said first vertical attachment bar and said second nut to said second vertical attachment bar couples the assembly to a cart.

2. The bumper assembly of claim 1 , wherein said at least one first bumper comprises an inner bumper portion having a vertical aperture and an outer bumper padding.

3. The bumper assembly of claim 2 , wherein said at least one second bumper comprises an inner bumper portion having a vertical aperture and an outer bumper padding.

4. The bumper assembly of claim 1 , wherein said at least one first bumper is one first bumper and said at least one second bumper is one second bumper.

5. The bumper assembly of claim 1 , wherein said at least one first bumper is a set of three bumpers and said at least one second bumper is a set of three bumpers.

6. The bumper assembly of claim 5 further including a first bumper attachment member coupled to said first bumper housing and a second bumper attachment member coupled to said second bumper housing, said first bumper attachment member having a pair of extending arms with an aperture for engagement with said first axle, and said second bumper attachment member having a pair of extending arms with an aperture for engagement with said second axle.

7. The bumper assembly of claim 1 further comprising a first screw coupled to said first bumper housing to secure said first bumper housing to said cart and a second screw coupled to said second bumper housing to secure said second bumper housing to said cart.

8. A wheel caster locking system for a housekeeping cart comprising:
a switch pivotable between a first position and a second position, said switch attached to a housekeeping cart frame;
a first vertical translational bar, said first vertical translational bar having a first end and a second end, said first end of said first vertical translation bar coupled to said switch;
a second vertical translational bar, said second vertical translational bar having a first end and a second end, said first end of said second vertical translational bar coupled to said switch by a horizontal translational bar;
a lower translational system, said lower translational system coupled to said second end of said first vertical translational bar, said lower translational system coupled to said second end of said second vertical translational bar;
a first wheel locking assembly coupled to said lower translational system; and
a second wheel locking assembly coupled to said lower translational system;
wherein, when said switch is in said first position, said first and second wheel locking assemblies allow free rotation of a first and second wheel of said housekeeping cart, and when said switch is in said second position, said first and second wheel locking assemblies prevent rotation of said first and second wheel of said housekeeping cart.

9. The wheel caster locking system for a housekeeping cart of claim 8 , wherein said first wheel locking assembly includes a first locking pin disposed within a first pin housing, said first pin housing coupled to a first wheel caster, said first locking pin having a first end and a second end, said first end of said wheel locking pin coupled to said lower translational system, said second end of said wheel locking pin positionable within said first wheel caster to prevent rotation of said first wheel caster.

10. The wheel caster locking system for a housekeeping cart of claim 9 , wherein said second wheel locking assembly includes a second locking pin disposed within a second pin housing, said second pin housing coupled to a second wheel caster, said second locking pin having a first end and a second end, said first end of said second locking pin coupled to said lower translational system, said second end of said wheel locking pin positionable within said second wheel caster to prevent rotation of said second wheel caster.

11. The wheel caster locking system for a housekeeping cart of claim 8 , further comprising a first L-shaped bracket coupled to said switch and pivotably coupled to said housekeeping cart frame, said first L-shaped bracket having a first end and a second end, said first L-shaped bracket first end coupled to said first vertical translational bar first end, said first L-shaped bracket second end coupled to said horizontal translational bar first end.

12. The wheel caster locking system for a housekeeping cart of claim 11 , further comprising a second L-shaped bracket pivotably coupled to said housekeeping cart frame, said second L-shaped bracket having a first end and a second end, said second L-shaped bracket first end coupled to said second vertical translational bar first end, said second L-shaped bracket second end coupled to said horizontal translational bar second end.

13. The wheel locking system for a housekeeping cart of claim 12 , wherein said lower translational system comprises:
a first lower crossbar having a first end and a second end, said first end of said first lower crossbar coupled to said second end of said first vertical translation bar, said second end of said first lower crossbar coupled to said second end of said second vertical translation bar;
a second lower crossbar having a first end and a second end, said first end of said second lower crossbar coupled to said first wheel locking assembly, said second end of said second lower crossbar coupled to said second wheel locking assembly; and
at least one bracket having a first end and a second end, said first end of said at least one bracket pivotably coupled to said first lower crossbar, said second end of said at least one bracket pivotably coupled to said second lower crossbar.

14. The wheel caster locking system for a housekeeping cart of claim 13 , wherein said first wheel locking assembly comprises a first locking pin disposed within a first housing, said first housing coupled to a first wheel caster, said first locking pin having a first end and a second end, said first end of said first locking pin coupled to said second lower crossbar first locking pin, said second end of said first locking pin positionable within said first wheel caster to prevent rotation of said first wheel caster.

15. The wheel caster locking system for a housekeeping cart of claim 14 , wherein said second wheel locking assembly comprises a second locking pin disposed within a second housing, said second housing coupled to a second wheel caster, said second locking pin having a first end and a second end, said first end of said second locking pin coupled to

Assignees

• Suncast Technologies Llc

Inventors

• Thuma Michael
• Vogler Michael R
• Uffner Michael

Classifications

• B62B2301/05

  Details of the attachment of the wheel assembly to the chassis · CPC title

• B62B2301/0463

  by blocking the rotation at a position · CPC title

• B62B2301/044

  arranged remote from the longitudinal centreline of the hand propelled vehicle · CPC title

• B62B2202/50

  Cleaning or gardening articles · CPC title

• B62B3/10

  characterised by supports specially adapted to objects of definite shape · CPC title