# US 10,480,564 B2 · Washer and vehicle structure

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- Number: US 10,480,564 B2
- Document ID: US10480564B2
- Status: Granted
- Kind: B2
- Application number: 15/655,958
- Filed: 2017-07-21
- Published: 2018-03-29
- Granted: 2019-11-19
- Earliest claimed: 2016-09-29
- Assignees: Aoyama Seisakusho Co., Ltd.; Toyota Jidosha Kabushiki Kaisha
- Applicants: Aoyama Seisakusho Co., Ltd.; Toyota Jidosha Kabushiki Kaisha
- Inventors: Takashi Matsuda; Toshinao Wada; Hideharu Koketsu; Masato Kanbe; Shigeki Matsunami; Yukinori Fujimoto
- Web page: https://patentgrep.com/patent/US10480564B2

## CPC

- F16B 43/004: {with a radial cut in order to improve elasticity of the washer (F16B43/005 takes precedence)}
- F16B 43/00: Washers or equivalent devices; Other devices for supporting bolt-heads or nuts (circlips F16B21/18; {for indicating tensile load F16B31/02; forming a whole with the bolt or nut F16B33/00; locking bolts or nuts by means of a fixed plate or ring, or washer-like resilient plates F16B39/10, F16B39/24})
- B62D 27/065: {using screwthread (connection of crossbeam to A- pillars B62D25/147; mounting load bearing surfaces B62D21/09; securing mudguards B62D25/163; connections for synthetic parts B62D29/048)}
- F16B: DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING (couplings for transmitting rotation F16D)
- B62D: MOTOR VEHICLES; TRAILERS (steering, or guiding on a desired track, of agricultural machines or implements A01B69/00; wheels, castors, axles, increasing wheel adhesion B60B; vehicle tyres, tyre inflation or tyre changing B60C; connections between vehicles of a train or the like B60D; vehicles for use on rail and road, amphibious or convertible vehicles B60F; suspension arrangements B60G; heating, cooling, ventilating or other air treating devices B60H; windows, windscreens, non-fixed roofs, doors or similar devices, protective coverings for vehicles not in use B60J; propulsion plant arrangements, auxiliary drives, transmissions, controls, instrumentation or dashboards B60K; electric equipment or propulsion of electrically-propelled vehicles B60L; power supply for electrically-propelled vehicles B60M; passenger accommodation not otherwise provided for B60N; adaptations for load transportation or to carry special loads or objects B60P; arrangement of signalling or lighting devices, the mounting or supporting thereof or circuits therefor, for vehicles in general B60Q; vehicles, vehicle fittings or vehicle parts not otherwise provided for B60R; servicing, cleaning, repairing, supporting, lifting, or manoeuvring, not otherwise provided for, B60S; brake arrangements, brake control systems or parts thereof B60T; air-cushion vehicles B60V; motor-cycles, accessories therefor B62J, B62K; testing of vehicles G01M)

## Abstract

There is provided a structure capable of ensuring a bearing surface pressure on an inner diameter side and an outer diameter side of a washer even if a thickness of the washer is suppressed. In a washer used at a fastening portion of a vehicle, a configuration in which a bearing surface is sectionalized into two faces, an inner abutting face and an outer abutting face, by an annular groove is adopted.

## Claims

### Claim 1

A washer used at a fastening portion of a vehicle, comprising a bearing surface sectionalized into two faces, an inner abutting face and an outer abutting face, by an annular groove that is provided on only one side of the washer, a depth of the groove is configured to be shorter than a radial length of the groove and a ratio of the depth of the groove and the radial length of the groove is set to be in a range of 2:5 to 1:4.

### Claim 2 (depends on 1)

A vehicle structure in which the washer according to claim 1 is interposed between a vehicle component and a head of a bolt, the vehicle structure comprising:
an annular space defined by the annular groove and the vehicle component.