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US 6,182,789 B2Granted
Escape device
OwnerToshio Okamurainventor
Life of this patent
Estimating the term…
Abstract
An escape device for escaping from a building or other high area in an emergency comprises a worm gear mechanism driven by an electric motor and operatively coupled to a reel having a length of high tensile line wound around it, arranged within a casing, and a belt connected to the casing for supporting a person's body. The worm gear mechanism rotates the reel, feeding out the line, and thereby lowering the user to a safe location below.
Claims18
An escape device comprising:
- a casing;
- a supporting member coupled to said casing for supporting a user;
- a reel supported by said casing;
- a line wound on said reel;
- a worm gear mechanism supported by said casing;
- and
- an electric driving means operatively coupled to said worm gear mechanism for effecting a rotation of the worm gear mechanism said worm gear mechanism being operatively coupled to said reel such that said rotation of the worm gear mechanism rotates the reel to unwind the line,
- wherein the reel comprises a first and a second circular plate attached to a cylindrical sleeve in a spaced relationship to each other and having a common central axis, the sleeve being rotatably mounted on a shaft disposed within the casing, and
- wherein a bearing is disposed between the sleeve and the shaft.
6 more elements
An escape device comprising:
- a casing;
- a supporting member coupled to said casing for supporting a user;
- a reel supported by said casing;
- a line wound on said reel;
- a worm gear mechanism supported by said casing;
- and
- an electric driving means operatively coupled to said worm gear mechanism for effecting a rotation of the worm gear mechanism, said worm gear mechanism operatively coupled to said reel such that said rotation of the worm gear mechanism rotates the reel to unwind the line,
- wherein the casing comprises a first and a second oblong hole in the casing, which provide a gripping area for a user to grip the escape device with both hands.
5 more elements
An escape device comprising:
- a casing including at least one gripping portion which is manually engageable by a user, said gripping portion comprising a hole which extends through said casing;
- a supporting member coupled to said casing for supporting said user;
- a reel supported by said casing;
- a line wound on said reel;
- a worm gear mechanism supported by said casing;
- and
- an electric driving means operatively coupled to said worm gear mechanism for effecting a rotation of the worm gear mechanism, said worm gear mechanism operatively coupled to said reel such that said rotation of the worm gear mechanism rotates the reel to unwind the line,
- wherein the casing comprises a first and a second oblong hole in the casing, which provide a gripping area for a user to grip the escape device with both hands.
5 more elements
An escape device comprising:
- a casing;
- a supporting member coupled to said casing for supporting a user;
- a reel supported by said casing;
- a line wound on said reel;
- a plurality of worm wheel teeth arranged proximate an outer circumferential edge of said reel and fixed with respect to said reel;
- a worm gear operatively engaged with said worm wheel teeth;
- and
- an electric driving means operatively coupled to said worm gear for effecting a rotation of the worm gear, said rotation of the worm gear rotating the reel to unwind the line.
5 more elements
An escape device comprising:
- a casing;
- a supporting member coupled to said casing for supporting a user;
- a reel supported by said casing;
- a line wound on said reel;
- a worm gear mechanism supported by said casing;
- and
- an electric driving means operatively coupled to said worm gear mechanism for effecting a rotation of the worm gear mechanism, said worm gear mechanism operatively coupled to said reel such that said rotation of the worm gear mechanism rotates the reel to unwind the line,
- wherein said line is a high tensile material selected from the group consisting of steel wire and carbon fiber, and
- wherein said plurality of worm wheel teeth are formed in said outer circumferential edge of said reel.
6 more elements
Dependencies are inferred from the claim text.