Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F21—LIGHTING
  • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
  • F21V23/00—Arrangement of electric circuit elements in or on lighting devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62J—CYCLE SADDLES OR SEATS; AUXILIARY DEVICES OR ACCESSORIES SPECIALLY ADAPTED TO CYCLES AND NOT OTHERWISE PROVIDED FOR, e.g. ARTICLE CARRIERS OR CYCLE PROTECTORS
  • B62J6/00—Arrangement of optical signalling or lighting devices on cycles; Mounting or supporting thereof; Circuits therefor
  • B62J6/20—Arrangement of reflectors, e.g. on the wheel spokes ; Lighting devices mounted on wheel spokes
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H35/00—Switches operated by change of a physical condition
  • H01H35/14—Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch

Definitions

• a non-magnetic electrically conductive ball floats within a non-magnetic non-conductive casing filled with a non-conductive magnetic fluid and contacts protrude into one end of the casing
• Permanent magnets may be disposed at one or both ends of the casing or a cylindrical hollow magnet may surround the casing including the areas containing the weight and contacts Impact of an automobile to which the sensor is attached causes the weight to abut the contacts, close a circuit and operate, for example, an air bag
• a non-magnetic conductive elongate casing having a bore therethrough to form a hollow casing having an inner wall and an outer wall, a non-magnetic conductive flange at one end thereof and a window through the casing proximate the end distant the flange,
• a magnetic body contained within the casing having a size such that the body is moveable over the length of the casing while substantially filling the cross-sectional area of the casing
• FIG 6a is a top view showing a cylindrical casing with an alternative permanent magnet configuration
• FIG. 11 is a top view of a motion sensitive safety light of the present invention which utilizes the motion sensitive switch of FIG. lc
• magnetic body 14 When switch 10a is in the off position, magnetic body 14 is held away from conductors 16a and 16b by the magnetic field created by permanent magnet 15 When switch 10a is subjected to movement, such as centrifugal action or a jostling motion, magnetic body 14 moves into position against conductors 16a and 16b, forcing conductors 16a and 16b into contact with the inner wall of casing 12, as shown in phantom Either at least the outer surface of magnetic body 14 or at least the inner surface of casing 12 is electroconductive to complete a circuit with conductors 16a and 16b Electroconductivity of magnetic body 14 can be enhanced by known methods such as, for example, coating with copper or aluminum
• Non-magnetic conductive elongate casing 41 having bore 42, flange 43 and window 44 resides magnetic body 45, as shown in FIG. 5
• Peg 40 is provided in flange 43 of casing 41 and notch 40a is provided at the end portion of inner body 33 distant the planar surfaces to provide correct alignment of conductor 32b and window 44.
• the peg can be on the inner body and the notch on the flange.
• Non-magnetic conductive elongate casing 41 can be formed from materials known to those skilled in the art, such as, for example, copper, aluminum, brass and the like.
• Magnetic body 45 is typically formed of steel, such as a steel bearing To improve conductivity of magnetic body 45 a coating of a metal such as copper, aluminum or the like can be utilized.
• a non-conductive non-magnetic inner body was formed of DelrinTM, a mechanical grade plastic available from DuPont Company, and had an outer diameter of about 11 73 mm (0 462 in ), angled planar surfaces were about 4 19 mm (0 165 in ) in height along the long axis of the inner body and about 10 16 mm (0 400 in ) wide The minor circumference between the planar surfaces was about 6 35 mm (0 250 in )

Landscapes

• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Lighting Device Outwards From Vehicle And Optical Signal (AREA)
• Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=21889769

Family Applications (1)

Country Status (6)

Families Citing this family (3)

Family Cites Families (2)

• 1999
  • 1999-03-05 CN CN99800219A patent/CN1124431C/zh not_active Expired - Fee Related
  • 1999-03-05 WO PCT/US1999/004822 patent/WO1999045319A1/en not_active Application Discontinuation
  • 1999-03-05 JP JP54506099A patent/JP2001526609A/ja active Pending
  • 1999-03-05 KR KR1019997010253A patent/KR20010012301A/ko not_active Application Discontinuation
  • 1999-03-05 BR BR9904899-0A patent/BR9904899A/pt not_active Application Discontinuation
  • 1999-03-05 EP EP99909839A patent/EP0980494A1/de not_active Withdrawn

Non-Patent Citations (1)

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