Source: http://www.google.com/patents/US6393892?ie=ISO-8859-1&dq=6,219,045
Timestamp: 2014-03-15 07:21:20
Document Index: 166616103

Matched Legal Cases: ['art 100', 'art 120', 'art 120', 'art 100', 'art 120', 'art 100', 'art 100', 'art 100', 'art 120', 'art 100', 'art 100', 'art 500', 'art 520', 'art 520', 'art 520', 'art 520', 'art 500']

Patent US6393892 - Impact sensor and impact-pressure sensor - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More »Sign inAdvanced Patent SearchPatentsTo attain an impact sensor designed compact and to be readily assembled. The impact sensor comprises main part 100 of sensor involving cavity 110, of which bottom surface serves as the fracture part 120; impact force transfer member 130 provided on said fracture part 120; weight 200 being confined in...http://www.google.com/patents/US6393892?utm_source=gb-gplus-sharePatent US6393892 - Impact sensor and impact-pressure sensorAdvanced Patent SearchPublication numberUS6393892 B1Publication typeGrantApplication numberUS 09/604,652Publication dateMay 28, 2002Filing dateJun 27, 2000Priority dateNov 9, 1999Fee statusLapsedAlso published asCN1220861C, CN1295234A, CN1641361APublication number09604652, 604652, US 6393892 B1, US 6393892B1, US-B1-6393892, US6393892 B1, US6393892B1InventorsYoshiaki Ohbayashi, Keiji Mine, Seisaku HiraiOriginal AssigneeHosiden CorporationExport CitationBiBTeX, EndNote, RefManPatent Citations (1), Non-Patent Citations (2), Referenced by (8), Classifications (23), Legal Events (4) External Links: USPTO, USPTO Assignment, EspacenetImpact sensor and impact-pressure sensorUS 6393892 B1Abstract To attain an impact sensor designed compact and to be readily assembled.
What is claimed is: 1. An impact sensor comprising a main part having a cavity formed therein, a fracture part made up of at least one side surface of said cavity; an impact force transfer member provided at said cavity; a weight confined in said cavity; and a seal member closing the cavity with the weight confined therein, characterized in that said fracture part is apt to be broken up when an impact has been encountered.
FIELD OF THE INVENTION The present invention relates to those impact sensor being incorporated, e.g. in cameras and other precision instruments or air bag in the automobile industry, which will induce current interrupting motion, whenever an impact force exceeding predetermined value would have been encountered as well as to those impact-pressure sensors which are designed to interrupt current, whenever an impact or a pressure exceeding predetermined value would have evolved at those electronic parts subject to an internal pressure, e.g. in lithium ion battery, capacitor, etc.
PRIOR ART A plurality of rechargeable types of batteries such as lead accumulators, nickel-cadmium-batteries is incorporated in conventional electronic apparatuses, e.g. cellular phone, video-camera, etc. Those batteries are susceptible to such kind of trouble as over-charged�or short-circuited state caused by failure or mishandling of electronic apparatuses, in which case over heated batteries, gas generation from decomposed electrolytic solution, elevated pressure in the batteries resulting in an explosion would be often encountered. As the result those rechargeable types of batteries are normally equipped with different types of protective device.
OUTLINE OF THE INVENTION The impact sensor under the present invention comprises: main part of sensor having a cavity, at least one side of which is made susceptible to fracture; impact force transfer member; weight being housed in the cavity; and seal member for the cavity having the weight confined therein. Upon occurrence of interference by an impact force exceeding predetermined level a fracture will occur at the defined area at the cavity through the acceleration force caused by the weight.
BRIEF DESCRIPTION OF THE DRAWINGS Of a series of drawings attached hereto is:
DESCRIPTION OF REFERENCE NUMBERS !
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 represents the drawing of an impact sensor under the first embodiment of the present invention, of which (A) is a schematic sectional view and (B) is a schematic bottom plan view; FIG. 2 represents the drawing of another impact sensor under the first embodiment of the present invention, of which (A) is a schematic sectional view and (B) is a schematic bottom plan view; FIG. 3 represents the drawing of another impact sensor under the first embodiment of the present invention, of which (A) is a schematic sectional view and (B) is a schematic perspective view; FIG. 4 represents a schematic perspective view of a still other impact sensor under the first embodiment of the present invention; FIG. 5 represents the schematic sectional view for the tripping mechanism of an impact sensor under the first embodiment of the present invention.
The main part 100 of the sensor confines the cavity 100 therein resulting in a box-type configuration. The bottom area of the cavity 110, i.e. the area opposite to the opening of the cavity 110 is designed thinner in its wall thickness when compared to other side surfaces (e.g. 0.1�0.3 mm), and such area serves as the fracture part 120. Dimension of the main part 100 of the sensor, e.g. made of ceramics, glass or plastics is determined depending on its use such as W3.5 (mm)�L8 (mm)�t4 (mm). The main part 100 of the sensor , when made of ceramics, is found featured with a high precision which will make it possible to produce a miniaturized impact sensor A with a higher reliability.
The main part 100 of the sensor confines the cavity 110 therein resulting in a box-type configuration. The bottom area of the cavity 110, i.e. the area opposite to the opening of the cavity 110 is designed thinner in its wall thickness when compared to other side surfaces (e.g. 0.1�0.3 mm) and such area serves as the fracture part 120. Dimension of the main part 100 of the sensor made of ceramics, glass or plastics is determined depending on its use, such as W3.5 (mm)�L8 (mm)�t4 (mm). The main part 100 of the sensor, when made of ceramics, is found featured with a high precision which will make it possible to produce a miniaturized impact sensor A with a higher reliability.
Of the hollow 510 isolated from outside within the main part 500 of the sensor one surface is made thinner in wall thickness than rest of it (e.g. 0.3�0.5 mm) and this surface serves as the fracture part 520. On the outer surface of the fracture part 520 is provided the impact force transfer member (not shown) The impact force transfer member consists of electricity conductive metallic thin film made of copper, aluminium, etc., which to be adhered on the fracture part 520. Also vacuum metallizing, spattering, printing or other suitable procedure may also be made in use for this purpose. The film thickness of this impact force transfer member is designed so thin that it becomes just cut off whenever the fracture part 520 will have been broken up. In addition the impact force transfer member is spanned from right- to left-hand end, with its both ends being made somewhat wider to facilitate the hooking up to a pair of terminal 400. The hollow 510 may be prepared in such a manner that the opening at the cavity on the main part 500 of the sensor is sealed off by a plate 530.
While the impact force transfer member 130 for the impact sensors A, B, C and the impact-pressure sensor D, E may be composed through lamination of metallic thin film, vacuum metallizing, spattering, printing or other suitable procedures, it may be made of lower melting point materials such as tin, lead, etc., in which case the impact force transfer member 130 will attain a co-function of �temperature sensitive melting fuse�.
Industrial Applicability The present invention relates to an impact- and impact-pressure sensor applicable to a rechargeable battery, air bag in the automobile industry and the like.
Patent CitationsCited PatentFiling datePublication dateApplicantTitleJP2000193678A * Title not available* Cited by examinerNon-Patent CitationsReference1 *Everett et al; Generalized Recognition of single ended Contact Formations; IEEE; 1999 vol. 15; abstract.*2 *Skubic et al.; Identifying single ended contact formations From Force Sensors;; 2000; IEEE; 2000; vol. 16 p597-603.* Cited by examinerReferenced byCiting PatentFiling datePublication dateApplicantTitleUS7307228 *Jul 13, 2004Dec 11, 2007Apple Inc.Method and apparatus for detecting free fallUS7351925Jun 10, 2005Apr 1, 2008Apple Inc.Method and apparatus for detecting free fallUS7380437 *Apr 25, 2006Jun 3, 2008Denso CorporationCollision sensing device for a vehicleUS7541551Mar 5, 2008Jun 2, 2009Apple Inc.Method and apparatus for detecting free fallUS7644605 *Mar 21, 2008Jan 12, 2010Fujitsu LimitedExternal force detection method, external force detector and electronic deviceUS7688306Nov 12, 2004Mar 30, 2010Apple Inc.Methods and apparatuses for operating a portable device based on an accelerometerUS8392340Sep 21, 2009Mar 5, 2013Apple Inc.Method and apparatus for detecting conditions of a peripheral device including motion, and determining/predicting temperature(S) wherein at least one temperature is weighted based on detected conditionsEP2264811A1 *May 18, 2010Dec 22, 2010Samsung SDI Co., Ltd.Secondary battery* Cited by examinerClassifications U.S. Classification73/12.01International ClassificationH01H35/34, H01M6/50, H01M2/12, G01L5/00, G01L1/06, H01H85/36, G01P15/00, H01H35/14, H01M2/34, H01H85/02, G01P15/06Cooperative ClassificationH01M2/34, H01H35/146, G01P15/06, H01M2/345, Y02E60/12, H01M2200/20, H01M2/1235European ClassificationH01M2/34P, H01H35/14E, G01P15/06, H01M2/34Legal EventsDateCodeEventDescriptionJul 25, 2006FPExpired due to failure to pay maintenance feeEffective date: 20060528May 30, 2006LAPSLapse for failure to pay maintenance feesDec 14, 2005REMIMaintenance fee reminder mailedJun 27, 2000ASAssignmentOwner name: HOSIDEN CORPORATION, JAPANFree format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OHBAYASHI, YOSHIAKI;MINE, KEIJI;HIRAI, SEISAKU;REEL/FRAME:010895/0438Effective date: 20000509Owner name: HOSIDEN CORPORATION 1-4-33, KITAKYUHOJI, YAO-SHI ORotateOriginal ImageGoogle Home - Sitemap - USPTO Bulk Downloads - Privacy Policy - Terms of Service - About Google Patents - Send FeedbackData provided by IFI CLAIMS Patent Services©2012 Google