초록 ▼

A door positioning device for use in a ground surface having an elongated platform with an upper surface and a lower surface. The platform also includes a first end portion and a second end portion. At least one wheel is located at the second end portion of the platform while a brake mechanism is lo

A door positioning device for use in a ground surface having an elongated platform with an upper surface and a lower surface. The platform also includes a first end portion and a second end portion. At least one wheel is located at the second end portion of the platform while a brake mechanism is located at the first end portion. A brake is provided with an actuator at the first end portion and a cable and cam mechanism for activating and deactivating the brake member contacting the wheel of the second end portion of the platform. As support is also employed for aiding in the securement of the door on the upper surface of the platform prior to and during movement of the door to a desired position.

대표청구항 ▼

What is claimed is: 1. A door positioning device for use on a ground surface comprising: a. an elongated platform, said platform having an upper surface and a lower surface relative to the ground surface said elongated platform further comprising a first end portion and a second end portion; b. at

What is claimed is: 1. A door positioning device for use on a ground surface comprising: a. an elongated platform, said platform having an upper surface and a lower surface relative to the ground surface said elongated platform further comprising a first end portion and a second end portion; b. at least one wheel located at said second end portion of said platform, said one wheel extending from said platform for movement relative to the ground surface; c. a support for aiding in the securement of the door on said upper surface of said platform, said support including a pivot for rotating said support upwardly relative to said platform; d. a brake, said brake arresting movement of said wheel and said platform relative to the ground surface, said brake including a brake actuator located at said first end portion of said platform actuator and a brake member for contacting said one wheel; and e. a spring, said spring biasing said brake member into contact with said one wheel upon operation of said brake actuator. 2. The device of claim 1 in which said brake actuator further includes a line linked to said spring biasing said brake member into contact with said one wheel. 3. The device of claim 2 in which said brake actuator further includes a lock for preventing said spring biasing said brake member into contact with said one wheel. 4. The device of claim 3 in which said lock include a rotatable cam having a cam surface with a recess and a cam follower capable of occupying said recess, said rotatable cam being joined to said cable linked to said spring biasing said brake member into contact with said one wheel. 5. The device of claim 1 in which said platform further comprises a lip distending relative to said upper surface to a position below said lower surface to form an open chamber said open chamber containing at least a portion of said brake therewithin. 6. A door positioning device for use on a ground surface comprising: a. an elongated platform, said platform having an upper surface and a lower surface relative to the ground surface, said elongated platform further comprising a first end portion and a second end portion; b. at least one wheel located at said second end portion of said platform, said one wheel extending from said platform for movement relative to the ground surface; c. a support for aiding in the securement of the door on said upper surface of said platform, said support comprising a pair of elongated rods, each pivotally attached to said platform; d. a brake, said brake arresting movement of said wheel and said platform relative to the ground surface, said brake including a brake actuator located at said first end portion of said platform actuator and a brake member for contacting said one wheel; and e. a spring, said spring biasing said brake member into contact with said one wheel upon operation of said brake actuator. 7. The device of claim 6 in which said platform further includes an edge portion between said upper and lower surfaces and said pair of elongated rods are each pivotally attached to said edge portion of said platform. 8. A door positioning device for use on a ground surface comprising: a. an elongated platform, said platform having an upper surface and a lower surface relative to the ground surface said elongated platform further comprising a first end portion and a second end portion; b. at least one wheel located at said second end portion of said platform, said one wheel extending from said platform for movement relative to the ground surface; c. a support for aiding in the securement of the door on said upper surface of said platform; d. a brake, said brake arresting movement of said wheel and said platform relative to the ground surface, said brake including a brake actuator located at said first end portion of said platform actuator and brake member for contacting said one wheel; e. a spring, said spring biasing said brake member into contact with said one wheel upon operation of said brake actuator; and f. a guide for aiding in the positioning of the door at said upper surface of said platform, said guide comprising a plurality of elements positioned along said upper surface of said platform, each of said elements including a pivotal mount having a resilient positioning mechanism. 9. A door positioning device for use on a ground surface comprising: a. an elongated platform, said platform having an upper surface and a lower surface relative to the ground surface said elongated platform further comprising a first end portion and a second end portion; b. at least one wheel located at said second end portion of said platform, said one wheel extending from said platform for movement relative to the ground surface; c. a support for aiding in the securement of the door on said upper surface of said platform; d. a brake, said brake arresting movement of said wheel and said platform relative to the ground surface, said brake including brake actuator located at said first end portion of said platform actuator and a brake member for contacting said one wheel; e. a spring, said spring biasing said brake member into contact with said one wheel upon operation of said brake actuator; and f. a stop on said upper surface of said platform, said stop intended to contact the door on said upper surface of said platform to prevent sliding movement of said door relative to said upper surface of said platform. 10. The device of claim 9 in which said stop further comprises means for removably mounting said stop to said platform.