Vacuum cleaner nozzle
First Claim
1. A vacuum cleaner nozzle which comprises a housing having a sole member and a top member defining a hollow chamber, said sole member presenting a surface on one side thereof to the floor to be cleaned and on the opposite side thereof to said chamber, a conduit for air flow attached to said top member and extending to said sole surface for communicating vacuum thereto, said sole member having at least one opening therethrough into said chamber, a plate disposed within said chamber, a brush on said plate disposed in alignment with said opening, means mounting said brush plate in said chamber for extendable and retractable movement of said brush through said opening in said sole member outwardly and inwardly from said floor side surface of said sole member, a slide disposed in said chamber and moveable in opposite directions transversely with respect to said brush plate, said slide having upper and lower sides, an adjusting member projecting from the upper side of said slide through said top member, a camming member projecting from the lower side of said slide, said brush plate having upper and lower sides respectively facing said lower side of said slide and said opposite side of said sole member, said brush plate having at least one leaf spring cantilevered from said lower side thereof and extending into engagement with said opposite side of said sole member, said brush plate having a cam follower member projecting upwardly from said upper side of said brush plate into engagement with said camming member on said slide for enabling said brush plate to be cammed downwardly against the bias of said cantilever spring to extend said brush when said slide is moved in one of said opposite directions and to permit said brush to retract when said slide is moved in the other of said opposite directions.
11 Assignments
0 Petitions
Accused Products
Abstract
A vacuum cleaner nozzle with a retractable brush having a plate carrying strips of bristles along the forward and rearward edge thereof and having leaf springs extending from one side and cam following members extending from the opposite side. A slide having camming members in engagement with the cam following members of the brush plate. The slide and brush plate are captured in a housing into which a conduit from the vacuum source extends through the housing and out of a sole plate, which is removably secured to the top plate and against which the brush plate leaf springs bear. Projections from the slide extend through the top of the housing and move the slide laterally in one direction to bring the brush through openings along the forward and rearward edges of the sole plate against the bias of the leaf springs to extend the brush. The projections move laterally in the opposite direction to permit the springs to retract the brush. Indentations at the opposite ends of a ramp provided by the cam follower member on the brush plate latch with the camming member on the slide so as to retain the brush plate with the brushes either in extended or retracted position.
16 Citations
17 Claims
- 1. A vacuum cleaner nozzle which comprises a housing having a sole member and a top member defining a hollow chamber, said sole member presenting a surface on one side thereof to the floor to be cleaned and on the opposite side thereof to said chamber, a conduit for air flow attached to said top member and extending to said sole surface for communicating vacuum thereto, said sole member having at least one opening therethrough into said chamber, a plate disposed within said chamber, a brush on said plate disposed in alignment with said opening, means mounting said brush plate in said chamber for extendable and retractable movement of said brush through said opening in said sole member outwardly and inwardly from said floor side surface of said sole member, a slide disposed in said chamber and moveable in opposite directions transversely with respect to said brush plate, said slide having upper and lower sides, an adjusting member projecting from the upper side of said slide through said top member, a camming member projecting from the lower side of said slide, said brush plate having upper and lower sides respectively facing said lower side of said slide and said opposite side of said sole member, said brush plate having at least one leaf spring cantilevered from said lower side thereof and extending into engagement with said opposite side of said sole member, said brush plate having a cam follower member projecting upwardly from said upper side of said brush plate into engagement with said camming member on said slide for enabling said brush plate to be cammed downwardly against the bias of said cantilever spring to extend said brush when said slide is moved in one of said opposite directions and to permit said brush to retract when said slide is moved in the other of said opposite directions.
Specification