# US 10,309,475 B2 · Elevator brake pad mounting systems and methods for making and using same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,309,475 B2 - Document ID: US10309475B2 - Status: Granted - Kind: B2 - Application number: 15/450,248 - Filed: 2017-03-06 - Published: 2018-09-06 - Granted: 2019-06-04 - Earliest claimed: 2017-03-06 - Assignees: Thyssenkrupp Elevator AG; thyssenkrupp AG - Applicants: Thyssenkrupp Elevator AG; Thyssenkrupp AG - Inventors: Jeffrey Duvall - Web page: https://patentgrep.com/patent/US10309475B2 ## CPC - F16D 69/0408: {specially adapted for plane linings} - B66B 5/22: by means of linearly-movable wedges (B66B5/24 takes precedence) - F16D 65/06: for externally-engaging brakes - F16D 2069/0433: {Connecting elements not integral with the braking member, e.g. bolts, rivets} - F16D 2069/0441: {Mechanical interlocking, e.g. roughened lining carrier, mating profiles on friction material and lining carrier} - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES - B66B: ELEVATORS; ESCALATORS OR MOVING WALKWAYS ({apparatus for raising or lowering persons on theatrical stages or the like A63J5/12} ; funicular railbound systems with rigid ground-supported tracks and cable traction, e.g. cliff railways, B61B9/00; arrangements of ammunition handlers in vessels B63G3/00; hoists, lifts, or conveyors for loading or unloading in general B65G; braking or detent devices controlling normal movements of winding drums or barrels B66D; ship-lifting devices E02C; garages for many vehicles with mechanical means for lifting vehicles E04H6/12; hoists for feeding ammunition or projectiles to launching apparatus or to loading mechanisms F41A9/00) ## Abstract An elevator braking system comprises a wedge having a brake pad attachment section. The brake pad attachment section has a recessed brake pad receiving portion and a recessed side plate receiving portion. The system includes a brake pad having a notch. The brake pad is configured to be received within the recessed brake pad receiving portion. The system comprises a side plate having a fastener receiving portion and an overhanging portion that is perpendicular to the fastener receiving portion. The overhanging portion mates with the notch when the side plate is secured to the recessed side plate receiving portion. ## Claims ### Claim 1 An elevator braking system, comprising: a wedge having a brake pad attachment section; said section having a recessed brake pad receiving portion and a recessed side plate receiving portion; a brake pad having a notch; said brake pad configured to be received within said recessed brake pad receiving portion; said notch disposed such that a back face of said brake pad is wider than a front face of said brake pad; a wedge bearing race having a curved surface configured to self-align with a roller bearing during a braking operation; said wedge bearing race being coupled to said wedge; and a side plate having a fastener receiving portion and an overhanging portion that is perpendicular to said fastener receiving portion; said side plate having a length shorter than an adjoining side of said brake pad; wherein, said overhanging portion mates with said notch when said brake pad is received within said recessed brake pad receiving portion and said side plate is secured to said recessed side plate receiving portion. ### Claim 2 (depends on 1) The elevator braking system of claim 1, wherein said brake pad is devoid of an aperture that extends therethrough. ### Claim 3 (depends on 1) The elevator braking system of claim 1, wherein: said notch comprises a first notch and a second notch; and said side plate comprises a first side plate and a second side plate. ### Claim 4 (depends on 1) The elevator braking system of claim 1, further comprising said roller bearing having a roller. ### Claim 5 (depends on 4) The elevator braking system of claim 4, wherein said wedge bearing race has a concave outer surface and said roller has a convex outer surface. ### Claim 6 (depends on 4) The elevator braking system of claim 4, further comprising a clamping jaw; said clamping jaw having a jaw race to which the roller bearing is slidably coupled. ### Claim 7 (depends on 4) The elevator braking system of claim 4, further comprising a resetting spring; said resetting spring extending beneath a cage of said roller bearing. ### Claim 8 (depends on 7) The elevator braking system of claim 7, wherein said cage includes a first cage and a second cage; said first cage being coupled to said second cage with at least one spacer. ### Claim 9 A method for coupling a brake pad to a wedge, comprising: providing an elevator braking system, comprising: said wedge having a front surface and a side surface; said brake pad; and a side plate having a fastener receiving portion and an overhanging portion that is perpendicular to said fastener receiving portion; said side plate having a length shorter than an adjoining side of said brake pad; forming a recessed brake pad receiving portion in said front surface and a recessed side plate receiving portion in said side surface; forming a notch in said brake pad such that a back face of said brake pad is wider than a front face of said brake pad; situating said brake pad in said recessed brake pad receiving portion; and securing said side plate to said recessed side plate receiving portion such that said overhanging portion mates with said notch to clamp said brake pad to said wedge. ### Claim 10 (depends on 9) The method of claim 9, further comprising the step of securing a wedge race to a rear surface of said wedge. ### Claim 11 (depends on 10) The method of claim 10, wherein said wedge race comprises a curved outer surface. ### Claim 12 (depends on 11) The method of claim 11, further comprising the step of slidably coupling a roller bearing to said wedge race. ### Claim 13 (depends on 11) The method of claim 11, further comprising the step of forming a roller bearing by rotatably coupling a roller to a cage of said roller bearing. ### Claim 14 (depends on 13) The method of claim 13, wherein said roller includes a curved outer surface. ### Claim 15 (depends on 14) The method of claim 14, further comprising the step of using said curved outer surface of said wedge race and said curved outer surface of said roller to automatically align said brake pad to a guiderail during a braking operation. ### Claim 16 An elevator braking system, comprising: a wedge having a front face and a side face; said front face including a brake pad receiving portion; said side face including a side plate receiving portion; a brake pad having a notch; said notch disposed such that a back face of said brake pad is wider than a front face of said brake pad; said brake pad being situated in said brake pad receiving portion; and a side plate configured to be secured within said side plate receiving portion such that a part of said side plate mates with said notch; said side plate having a length shorter than an adjoining side of said brake pad. ### Claim 17 (depends on 16) The elevator braking system of claim 16, wherein a coefficient of thermal expansion of a first material forming said brake pad is different from a coefficient of thermal expansion of a second material forming said wedge. ### Claim 18 (depends on 16) The elevator braking system of claim 16, wherein said side plate includes a fastener receiving portion and an overhanging portion perpendicular to said fastener receiving portion. ### Claim 19 (depends on 16) The elevator braking system of claim 16, further comprising a roller bearing slidably coupled to said wedge.