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A riding burnishing machine (10) includes a battery pack positioned as low as possible in the chassis (12) between the front and rear wheels (14, 15) and removable in a horizontal movement direction while supported by the bottom by a pallet jack. A steering system includes steering shafts (58, 76) w

A riding burnishing machine (10) includes a battery pack positioned as low as possible in the chassis (12) between the front and rear wheels (14, 15) and removable in a horizontal movement direction while supported by the bottom by a pallet jack. A steering system includes steering shafts (58, 76) which are rotatable together while allowing relative pivotable movement therebetween and which are rotatably connected to the spindle (38) of the steerable rear wheels (15) through a jack shaft (44). The burnishing head is raised and lowered relative to the floor surface by an electric actuator (104) which pivots a linkage (92) through a connection allowing floating travel. The pressure which the treating member (16) engages the floor surface is controlled in response to the current level of the electric motor (86) which rotates the treating member (16). The current level of the electric motor (86) is measured by monitoring the voltage at the ends of a negative supply lead cable (144) and the temperature of the cable (144).

대표청구항 ▼

A riding burnishing machine (10) includes a battery pack positioned as low as possible in the chassis (12) between the front and rear wheels (14, 15) and removable in a horizontal movement direction while supported by the bottom by a pallet jack. A steering system includes steering shafts (58, 76) w

A riding burnishing machine (10) includes a battery pack positioned as low as possible in the chassis (12) between the front and rear wheels (14, 15) and removable in a horizontal movement direction while supported by the bottom by a pallet jack. A steering system includes steering shafts (58, 76) which are rotatable together while allowing relative pivotable movement therebetween and which are rotatably connected to the spindle (38) of the steerable rear wheels (15) through a jack shaft (44). The burnishing head is raised and lowered relative to the floor surface by an electric actuator (104) which pivots a linkage (92) through a connection allowing floating travel. The pressure which the treating member (16) engages the floor surface is controlled in response to the current level of the electric motor (86) which rotates the treating member (16). The current level of the electric motor (86) is measured by monitoring the voltage at the ends of a negative supply lead cable (144) and the temperature of the cable (144). rther comprises a non-conductive cover pivotally attached at one end of said housing and releasably attached at a second end for preventing contact with said load busbar members when said cover is closed. 5. An assembly of claim 1, wherein the overcurrent protection devices comprise plug-in circuit breakers with crown-style male plugs and the sockets in said line and load busbar members are cylindrical. 6. An assembly of claim 1, wherein said load busbar module comprises a recessed portion, and each of said overcurrent protection devices includes a pressure-loaded clip for engaging the recessed portion to thereby retain the circuit breaker in operative position with said load busbar module. 7. An assembly of claim 1, wherein said at least one load busbar module further comprises cooperating hook portions and a guide edge formed thereon, said support member further including one or more rails for slidably interengaging the hook portions and a lip portion along which said guide edge pivots to mount or dismount the load busbar module. 8. An assembly of claim 1, wherein said means for retaining said load busbar module in operative position relative to said support member comprises interengageable portions formed on said holder and said support member. 9. An assembly of claim 8, wherein said interengageable portions include friction-fit clips formed along the exterior of said load busbar module and cooperating portions formed on said support member. 10. An assembly of claim 1, wherein said support member comprises a pair of lip portions extending outwardly from the front portion of said support member, said overcurrent protection devices including a pair of cooperating edge portions formed on the exterior thereof, said lip portions frictionally engaging said pair of cooperating edge portions when said overcurrent protection devices are coupled to said support member. 11. An assembly of claim 10, wherein said lip portions are pressure-loaded and snap-fit to engage the cooperating edge portions, each of said male electrical plugs being passed through a corresponding one of said first and second sockets. 12. An assembly for mechanically mounting and providing electrical connections to a plurality of overcurrent protection devices each having first and second male electrical plugs, comprising: a support member formed of non-conducting material and having a front portion, said support member including a plurality of spaced apart first plug passageways formed in said front portion; at least one conductive line busbar member mounted on said support member and having at least one first socket shaped and positioned to mate by a friction fit with a corresponding first male plug extending through a corresponding one of said first plug passageways; at least one load busbar module including a non-conductive housing having a second plug passageway formed therein, and a conductive load busbar member, wherein said support member includes means for retaining said load busbar module in an operative position relative thereto, said conductive load busbar member having a second socket shaped and positioned to mate by a friction fit with a corresponding second male plug extending through said second plug passageway, wherein respective said first and second plug passageways are shaped and spaced apart from each other to permit passage of the electrical plugs of each said overcurrent device through said passageways so as to mate with corresponding said first and second sockets; a mounting substrate having a first side and a second opposed side slidably mounted to the front portion of said support member; a signal terminal passageway disposed in said substrate for each overcurrent protection device, each said signal terminal passageway extending from said first side to said second side and shaped and positioned to permit the passage therethrough of a male auxiliary signal terminal of a corresponding overcurrent protection device from said first side