EP0076573A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Earthquake insulating bearing assembly
Assignee: Bridgestone Corp
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Filing: 1982-09-09
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Granted: —
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Expires: 2002-09-09
Abstract
Abstract An earthquake-insulating bearing assembly is mounted between a foundation (11) and a building structure (12). A first friction member (15) is fixedly secured to a lower surface of the building structure (12). An elastic bearing (17) is interposed between and fixed relative to an upper surface (11a) of the foundation and the lower surface of the building structure (12). A guide means (24) is vertically mounted on the upper surface of the foundation. A second friction member (27) of an annular shape is disposed around the elastic bearing and is engaged with the guide means for vertical movement therealong. An urging means (28) is fixed relative to the upper surface of the foundation for urging the second friction member (27) into frictional engagement with the first friction member (15) under a selected load. The urging means comprises means (31) for adjusting the load applied to the second friction member.
Inventors
- 👤 Toshikazu Yoshizawa
- 👤 Takafumi Fujita
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 13:33
CPC Classifications
F; F16; F16F; F16F7/00; F16F7/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
192 words
An earthquake-insulating bearing assembly for mounting between a foundation and a building structure, said bearing assembly comprising: (a) a first friction member fixedly secured to one of a lower surface of the building structure and an upper surface of the foundation disposed in opposed relation thereto, said first friction member being disposed horizontally; (b) an elastic bearing interposed between and fixed relative to said lower surface of the building structure and said upper surface of the foundation, said elastic bearing comprising rubber or the like sheets and metal sheets stacked one upon another alternately and connected together; (c) a guide means vertically mounted on the other of said opposed lower and upper surfaces; (d) a second friction member of an annular shape disposed around said elastic bearing, said second friction member being engaged with said guide means and movable vertically therealong; and (e) an urging means fixed relative to the other of said opposed lower and upper surfaces for urging said second friction member into frictional engagement with said first friction member under a selected load, said urging means comprising means for adjusting the load applied to said second friction member. .
Claim 2
Dependent Claim
192 words
An earthquake-insulating bearing assembly for mounting between a foundation and a building structure, said bearing assembly comprising: (a) a first friction member fixedly secured to one of a lower surface of the building structure and an upper surface of the foundation disposed in opposed relation thereto, said first friction member being disposed horizontally; (b) an elastic bearing interposed between and fixed relative to said lower surface of the building structure and said upper surface of the foundation, said elastic bearing comprising rubber or the like sheets and metal sheets stacked one upon another alternately and connected together; (c) a guide means vertically mounted on the other of said opposed lower and upper surfaces; (d) a second friction member of an annular shape disposed around said elastic bearing, said second friction member being engaged with said guide means and movable vertically therealong; and (e) an urging means fixed relative to the other of said opposed lower and upper surfaces for urging said second friction member into frictional engagement with said first friction member under a selected load, said urging means comprising means for adjusting the load applied to said second friction member. .
Claim 3
Dependent Claim
96 words
An earthquake-insulating bearing assembly according to claim 1, in which said guide means comprises an annular wall, said second friction member comprising an annular member of an inverted U-shaped cross-section defined by . a pair of opposed inner and outer arms and a horizontal base interconnecting said two arms at their one ends, said second friction member being fixedly secured to an upper surface of said base, said inner arm disposed in sliding contact with the inner peripheral surface of said annular guide wall to permit said annular member to vertically move along said guide wall.
Claim 4
Dependent Claim
97 words
An earthquake-insulating bearing assembly according to claim 2, in which said urging means comprises a plurality of vertical threaded rods fixedly mounted around the outer peripheral surface of said annular guide wall in circumferentially spaced relation, a plurality of nuts threaded on respective threaded rods, and a plurality of compression coil springs wound around respective threaded rods and acting between the lower surface of said base of said annular member and respective nuts, each of said nuts constituting said load adjusting means and being movable along said threaded rod to adjust the compressive force of said spring.
References Cited (Backward Citations)
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