Floor treating machine with squeegee
First Claim
Patent Images
1. A floor treating machine, with a squeegee operably connected thereto for selective engagement or disengagement with the surface being treated, in which the improvement comprises:
- spring means, capable of flexing spring action in at least a side to side direction laterally of the direction of travel of the machine, secured at one end to said machine and at the other end to said squeegee, said squeegee being free of connection to said machine through a rigid linkage whereby it is free to shift laterally side to side not only relative to said machine but also relative to the normal longitudinal axis of said spring means through said flexing action of said spring means thereby allowing said squeegee to deflect out of the way of obstacles and not get hung up on corners or the like.
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Abstract
The specification discloses a floor scrubber wherein the squeegee is connected to the machine by a coil spring. The squeegee is free of direct rigid connection to the machine such that it can shift readily from side to side through the action of the spring. The squeegee is biased to a raised position by a second spring and can be forced downwardly into engagement with the floor through a unique pneumatic cylinder.
61 Citations
30 Claims
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1. A floor treating machine, with a squeegee operably connected thereto for selective engagement or disengagement with the surface being treated, in which the improvement comprises:
- spring means, capable of flexing spring action in at least a side to side direction laterally of the direction of travel of the machine, secured at one end to said machine and at the other end to said squeegee, said squeegee being free of connection to said machine through a rigid linkage whereby it is free to shift laterally side to side not only relative to said machine but also relative to the normal longitudinal axis of said spring means through said flexing action of said spring means thereby allowing said squeegee to deflect out of the way of obstacles and not get hung up on corners or the like.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A floor treatment machine, with a squeegee operably connected thereto for selective engagement or disengagement with the surface being treated, in which the improvement comprises:
- a coil spring pivotally connected to said machine at one end for up and down pivotal movement;
said squeegee means being connected to said coil spring at the opposite end of said coil spring, said squeegee being free of direct rigid connection to said machine whereby it is free to shift laterally through action of said coil spring;
an arm pivotally mounted at one end to said machine;
a pressure pad positioned at the opposite end of said arm from said pivot mounting, said pressure pad engaging the top of said squeegee;
biasing means operably connected between said squeegee and said machine for biasing said squeegee upwardly towards engagement with said pressure pad, said biasing means also biasing said squeegee and said arm upwardly such that said squeegee is disengaged from the surface being treated;
pneumatic cylinder means operably connected to said arm at a point spaced from said pivot mounting thereof whereby when air under pressure is fed to said pneumatic cylinder means, said arm is forced downwardly and said squeegee is forced downwardly until it engages the floor being treated. - View Dependent Claims (20, 21, 22, 23)
- a coil spring pivotally connected to said machine at one end for up and down pivotal movement;
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24. A floor treating machine, with a squeegee operably connected thereto by squeegee connecting means, for selective engagement or disengagement with the surface being treated, in which the improvement comprises:
- means biasing said squeegee upwardly out of engagement with the surface being treated;
pneumatic cylinder means operably connected to said squeegee for selectively forcing same down when pressurized or allowing said bias means to force said squeegee upwardly when said pneumatic cylinder means is depressurized;
said pneumatic cylinder means comprising a relatively shallow dish shaped cylinder with a rubber diaphram seated therein whereby said diaphram expands outwardly when air under pressure is delivered to said cylinder. - View Dependent Claims (26, 27, 28)
- means biasing said squeegee upwardly out of engagement with the surface being treated;
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25. The floor treating machine of claim 25 wherein said rubber diaphragm is dish shaped generally to the shape of interior of said dish shaped cylinder.
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29. A floor treating machine with a squeegee operably connected thereto for selective engagement or disengagement with the surface being treated, in which the improvement comprises:
- flexible linkage means interconnecting said machine and said squeegee, said flexible linkage means having a normal longitudinal axis and comprising means allowing said flexible linkage means and said squeegee to shift laterally of the direction of travel of said machine and means allowing said squeegee to shift laterally relative to the normal longitudinal axis of said flexible linkage means, thereby allowing said squeegee to deflect out of the way of obstacles and not get hung up on corners or the like.
- View Dependent Claims (30)
Specification