| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 21 | Locking sensor for belt retractor | US593276 | 1975-07-07 | US4103842A | 1978-08-01 | Thomas F. Martin; James A. Nagy; Harold R. Scibbe |
| An emergency locking retractor system for storing a length of safety belt incorporates a sensor which includes a multi-directional pendulum device displaceable from its rest position by acceleration. Displacement of the pendulum is utilized to change the strength of an energy field imposed upon an electrical signal means. The output signal of the signal means responds to the change in the energy field imposed thereon and the changed signal is employed to activate solenoid switches which lock the retractor. The energy field source may be a magnet or a light source and the signal means then may include, respectively, a Hall device or a phototransistor. Movement of the pendulum from its rest position is utilized to move the magnet closer to or further from the Hall device, or to interpose a shield between the light source and the phototransistor, or to change the position of a reflector used to reflect light from the light source onto the phototransistor. The resultant change in output signal is employed to close a circuit which connects a power source to the locking medium. | ||||||
| 22 | Inertial switch | US27624563 | 1963-04-29 | US3240891A | 1966-03-15 | BERGEY JOHN M |
| 23 | Motion Detector for Animals | US12085166 | 2006-11-11 | US20090302928A1 | 2009-12-10 | Albertino Bernardo M. Verstege; Otto Theodorus J. Zents; Hans Benedictus |
| A motion detector, in particular suitable for animals, comprising at least one motion element, wherein an element movable within a predetermined area is located, which brings about an electrical connection in at least one position, wherein the movable element is a magnetic element, which can move along a path of travel formed by a cavity in the motion element, and wherein, near the path of travel, at least one magnetically sensitive switching element is placed, which can be influenced by the magnetic element. | ||||||
| 24 | Low Current Switch for Motor Car Anti-Theft Lock | US12089860 | 2006-10-09 | US20080231400A1 | 2008-09-25 | Louis Canard; Fabrice Giacomin |
| A switch for starting and stopping at least one operating unit of a motor vehicle configured to cooperate with an anti-theft lock having a stator and a rotor that can be rotated inside the stator and that has at least one permanent magnet secured to the rotor has at least two Reed bulbs provided with flexible leads and electrically linked by the leads to the contacts of a connector. Said Reed bulbs are arranged on a connector body designed to be fixed removably to said stator in a so-called operating position. | ||||||
| 25 | Magnetic switching system | US10615473 | 2003-07-07 | US20050007223A1 | 2005-01-13 | Herbert Schulze |
| This is an electrical switching method and apparatus wherein a magnetic reed switch is activated by means of a disc magnet moving into and out of the magnetic field of the magnetic reed switch. The motion of the disc magnet is caused by gravity, a change in the orientation of a device supporting the disc magnet, a flow of fluid against the disc magnet, an impact affecting the disc magnet, vibration, fluid level changes, or other forces causing the disc magnet to roll or otherwise change its position with respect to the magnetic reed switch. Variations include means by which paraplegics and other invalids can signal for assistance or communicate by blowing breath against disc magnets and where a bank of disc magnet devices can control a diversity of devices such as bed controls, televisions, telephones, etc. | ||||||
| 26 | Mechanical acceleration sensor | US10023551 | 2001-12-17 | US06610940B2 | 2003-08-26 | Thomas Flaig; Robert Skofljanec |
| A switch includes a deflectable inertial mass that responds to acceleration. The inertial mass is for activating a switching system. The inertial mass is suspended on two parallel, elastically deflectable support arms having a first, firmly anchored end and a second, movable end to which the inertial mass is attached. | ||||||
| 27 | Shock sensor | US95725 | 1998-06-11 | US6142007A | 2000-11-07 | Kazunori Yuze; Hiromi Kashiwakura |
| The present invention provides a small and simple shock sensor which can be easily assembled. The shock sensor includes a hermetically sealed case extending along a direction substantially perpendicular to the direction in which a shock is to be detected and a fixed reed and a movable reed sealed inside the hermetically sealed case so as to extend in the lengthwise direction thereof. The movable reed is formed of a weight member and a supporting member which elastically supports the weight member. The shock sensor is structured so that when the weight member moves in the detected direction due to a shock, the contact of the tip of the weight member presses against the contact of the tip of the fixed reed and closes the space between the fixed reed and the movable reed. | ||||||
| 28 | Bi-directional shock sensor employing reed switch | US195724 | 1998-11-18 | US6002091A | 1999-12-14 | Daniel R. Reneau |
| A bidirectional shock sensor is constructed from a reed switch positioned between two shock sensing magnets. Each magnet is an annular ring which travels parallel to the reed switch reeds on a shaft spaced in a direction perpendicular to the axis of the reed switch. A spring pre-loads a first magnet against a first stop. A second spring pre-loads a second magnet against a second stop. The direction of travel of the first and second magnets is opposite and the first and second stops are positioned at opposite ends and on opposite sides of the reed switch. The magnets and the shafts on which they travel are positioned on identical housings which are arranged as mirror images with the reed switch positioned therebetween. | ||||||
| 29 | Roll-over shunt sensor | US82046 | 1998-05-20 | US5955714A | 1999-09-21 | Daniel R. Reneau |
| A ferromagnetic shunt is pivotally mounted to a housing to form a pendulum which swings between a reed switch and a magnet. As long as the shunt remains between the reed switch and the magnet the reed switch remains open. The shunt is held or biased between the magnet and the reed switch by the force of the magnetic attraction between the shunt and the magnet. The mass of the shunt acts as both a tilt sensor which responds to gravity and an accelerometer sensitive to crash-induced accelerations. The reed switch, magnet and shunt are mounted in a housing which positions the reed switch and magnet and controls the maximum range of motion of the shunt. The magnet is located between two sidewardly spaced pendulum arms, which allow the shunt to swing out from between the reed switch and the magnet in two opposite directions. | ||||||
| 30 | Vibration sensing element and vibration sensor | US900531 | 1997-07-25 | US5880351A | 1999-03-09 | Koji Orita; Kazunori Yuze; Tsutomu Sugawara |
| A vibration sensing element includes a hermetically sealed case, a fixed electrode member made of a nonmagnetic electrically conductive material and fixed to the case with its tip portion projecting into the case, a movable electrode member made of an electrically conductive magnetic metal material exhibiting elasticity and fixed to the case with its tip portion projecting into the case and making pressure contact with the fixed electrode member, and a magnetic member disposed to face the movable electrode member. A glass breakage sensor includes a casing for attachment to the glass, the vibration sensing element, and a resin molding encasing the vibration sensing element. The contact pressure between the fixed and movable electrode members can be noninvasively checked by applying a magnetic field thereto. | ||||||
| 31 | Impact sensor and manufacturing method therefor | US790283 | 1997-01-28 | US5773720A | 1998-06-30 | Toshio Miyata |
| An impact sensor 10 has mounting pins which are strongly fixed to a housing body 11 without having to increase the outside dimensions of the housing body. The impact sensor includes the housing body 11, which has a hollow space 12 for accommodating a sensing mechanism, and a mounting arrangement 17 for fixing the housing body 11 to a wiring board 13. The mounting arrangement 17 includes a first pin portion 17a, a second pin portion 17b extending from the first pin portion at right angles with the longitudinal direction thereof, and a third pin portion 17c extending from the first pin portion 17a in the opposite direction from the extending direction of the second pin portion. On each side of the housing body 11, a press-fit recess 16 is formed into which the first and second pin portions 17a and 17b are press-fitted. The housing body 11 is fixed to the wiring board 13 by those portions of the third pin portions 17c of the mounting arrangement 17 which protrude from the housing body 11. | ||||||
| 32 | Traffic accident detecting sensor for a passenger protection system in a vehicle | US724361 | 1996-10-01 | US5675134A | 1997-10-07 | Martin Swart; Josef Dirmeyer; Gerhard Mader; Helmut Bresgen; Gunter Dissen |
| A traffic accident detecting sensor for a passenger protection system in a vehicle includes a low-retentivity seismic mass which can move along a guide member between two extreme positions and is normally held in a first extreme position by a contact pressure. The contact pressure is overcome in the event of deceleration in such a way that the seismic mass then moves toward a second extreme position. A magnet being distinct from the seismic mass has a magnetic field which is deformed to a varying degree by the seismic mass depending on the position of the seismic mass. At least one contact can be controlled by the magnetic field of the magnet. The contact and the seismic mass have such a configuration that in the first extreme position the latter to a large extent constitutes a magnetic shunt diverting the magnetic field away from the contact toward the seismic mass so that the contact is then in its first contact state. The seismic mass does not constitute a magnetic shunt at points distant from the extreme position, so that the contact is then controlled in its other contact state under the effect of the magnetic field. The magnet forms the guide member or is rigidly connected to the guide member. The magnet is magnetized perpendicularly to the direction in which the seismic mass can move. The contact is disposed near a frontal surface of the guide member in such a way that the magnetic flux through the contact depends on the position of the seismic mass. | ||||||
| 33 | Shock sensor | US193098 | 1994-06-07 | US5581060A | 1996-12-03 | Tatsuo Kobayashi; Kiyotaka Nakamura; Hisaharu Matsueda; Kayoko Makiki; Isamu Hamazaki; Kazuya Watanabe |
| A shock sensor capable of detecting a shock in a number of directions includes a reed switch, which is fixed inside a body and has a reed contact part with is magnetically changed from a first to a second state by way of a magnet, which is fixed inside the body at a specified distance from the reed switch. A shield member, having a sufficiently large area, prevents the magnetic force of the magnet from affecting the reed contact part when the shield member is in its regular position. A resilient member, in a normal state, keeps the shield member at its regular position between the reed contact part and the magnet, at which the reed contact part is kept in the first state. When a shock is applied to the shock sensor, the resilient member allows the shield member to move to a position where the reed contact part changes over to the second state.In a second embodiment, the magnet is movably held in the main casing at a specified distance from the reed switch. In a normal state, the position of the magnet is such that its magnetism does not affect the reed contact part. When a shock is applied to the shock sensor, the magnet moves to a second position where the reed contact part is changed over to the second state. | ||||||
| 34 | Impact sensor for vehicle safety restraint system | US142045 | 1993-10-28 | US5485041A | 1996-01-16 | Jack B. Meister |
| An acceleration sensor that includes a permanent magnet mounted for movement within a cylindrical cavity in a body of non-magnetic material. The magnet has a cylindrical geometry and an outer surface with a first portion of electrically conductive construction entirely around the magnet adjacent to one axial end thereof, and a second portion of electrically non-conductive construction entirely around the magnet adjacent to an opposing end thereof. A pair of diametrically opposed electrical contact leaves extend through openings into resilient sliding contact with the magnet. The magnet is resiliently urged toward one end of the cavity such that the contacts are in engagement with one of the first and second surface portions. Acceleration forces on the magnet move the magnet toward the opposing end of the cavity, bringing the contacts into engagement with the other of the first and second surface portions, such that motion of the magnet within the cavity results in a change in electrical conductance between the contacts. | ||||||
| 35 | Switch for signaling changes in position and accelerations | US47450 | 1993-04-15 | US5450049A | 1995-09-12 | Rolf Bachmann |
| A switch signals changes in position and accelerations of its housing. The switch housing includes a movably mounted permanent magnet and at least one reed switch. The permanent magnet is suspended in the manner of a planar pendulum. The reed switch is disposed in the effective range of the magnetic field below the circle segment described by the pendulum. The longitudinal axis of the reed switch is oriented approximately in the direction of the pendulum oscillations. | ||||||
| 36 | Shock detecting system | US178528 | 1994-01-07 | US5440084A | 1995-08-08 | Akira Fuse; Yuji Tsuda; Tsutomu Nakada |
| A shock sensor including a switch turned on by magnetic force. The switch includes a reed switch, a magnet sliding back and forth along a case for the reed switch, and a coil spring biasing the magnet in a particular direction. When the sensor receives a shock, the biased magnet moves along the switch case, the magnetic force applied to the reed switch increases and when this magnetic force exceeds a predetermined amount, contact portions of the reed switch are closed and the switch is in the on state. Further, a weight forming an integral part of the magnet is used to increase the kinetic energy of the magnet or, between the coil spring and the switch case, there is a slack which enables movement of the coil spring in the direction of its diameter, either structure allowing the magnet to stay in the on state longer than a conventional switch. | ||||||
| 37 | Electric switch | US885872 | 1992-05-20 | US5422616A | 1995-06-06 | Peter R. Jackman |
| An electric switch 11 has contacts 12 and 13 which are initially closed by activating means 14. The invention provides urging means 22 to bias the switch against reopening of the contacts during at least an initial period which is useful if the activating means does not operate for long enough for the electric switch to assume its stable closed position. The urging means is responsive to current carried through the contacts. It is possible to provide a plurality of switches responsive to the same urging means, different switches being provided for different electrical circuits and possibly energised from different sources. | ||||||
| 38 | Acceleration switch | US120536 | 1993-09-10 | US5373124A | 1994-12-13 | Manfred Abendroth; Harry Kaiser |
| An acceleration switch has a housing having a housing recess, an elongated tilting body located in the housing recess and operating as a seismic mass, a magnetic system, and a reed switch. The tilting body is arranged so that upon exceeding of a predetermined threshold value a control signal is released by interaction of the magnetic system and the reed switch. The magnetic system includes at least two permanent magnets having opposite polarization directions and connected with a magnetic flux conducting body at an end side facing away from the reed switch. The reed switch has contacts located in a magnetic field between the permanent magnets. The polarization directions of the permanent magnets extend perpendicular to a longitudinal axis of the tilting body. The contacts of the reed switch are arranged in a tilting direction of the tilting body. | ||||||
| 39 | Shock sensor | US984908 | 1992-12-02 | US5326945A | 1994-07-05 | Noriyuki Gotoh; Yasunori Ohtuki; Naoharu Yamamoto; Hiroyuki Sada; Akihiko Kuroiwa; Hiroshi Moriyama |
| To detect an impact due to a shock with high precision and stability, a shock sensor is employed which provides a sufficiently long closure interval of a contact of a reed switch (1) enough to carry out signal processing. A gap between an outer surface of a magnet (2) and an inner wall (8) of a housing (7) defining a passage for the magnet (2) comprises a first gap (G1) between a stationary position and an activating position and a second gap (G2) between the activating position and a stop position. The inner wall (8) is formed so that the first gap (G1) is greater than the second gap (G2). The velocity of the magnet (2) is lower when travelling in the second gap (G2) than the velocity in the first gap (G1) because air resistance is greater in the second gap (G2). Accordingly, the closure interval is increased. Alternatively, the closure interval of the contact of the reed switch (1) is adjusted by first and second coil springs (3, 49) which independently urge first and second magnets (2, 48) in an anti-impact direction, respectively. To cope with various collision modes, spring constants (k1, k2) of the first and the second coil springs (3, 49) and masses (m1, m2) of the first and the second magnets (2, 48) are selected so that the velocity of shock-responsive movement is different between a first group comprising the first magnet (2) and the first coil spring (3) and a second group comprising the second magnet (48) and the second coil spring (49). | ||||||
| 40 | Acceleration sensor with magnetic operated reed switch | US997761 | 1992-12-24 | US5283402A | 1994-02-01 | Terence W. Green |
| A switch assembly has a magnet (26) mounted for in the vicinity of a reed switch (20). A weight (29) is movable in a direction generally perpendicular to the magnet (26), and is connected thereto by a mechanism (16;38,39,40;44) which translates the movement of the weight to movement of the magnet. The magnet (26) and reed switch (20) are configured so that the reed switch actuates on movement of the magnet. | ||||||
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