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1. (WO2015045558) HYDRAULIC SHOCK ABSORBER
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2015/045558 International Application No.: PCT/JP2014/068280
Publication Date: 02.04.2015 International Filing Date: 09.07.2014
IPC:
F16F 9/32 (2006.01) ,B60G 17/08 (2006.01) ,F16F 9/20 (2006.01) ,F16F 9/54 (2006.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
32
Details
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
G
VEHICLE SUSPENSION ARRANGEMENTS
17
Resilient suspensions having means for adjusting the spring or vibration-damper characteristics, for regulating the distance between a supporting surface and a sprung part of vehicle or for locking suspension during use to meet varying vehicular or surface conditions, e.g. due to speed or load
06
Characteristics of dampers
08
Characteristics of fluid dampers
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
10
using liquid only; using a fluid of which the nature is immaterial
14
Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
16
involving only straight-line movement of the effective parts
18
with a closed cylinder and a piston separating two or more working spaces therein
20
with the piston-rod extending through both ends of the cylinder
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F
SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
9
Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
32
Details
54
Arrangements for attachment
Applicants:
ヤマハ発動機株式会社 YAMAHA HATSUDOKI KABUSHIKI KAISHA [JP/JP]; 静岡県磐田市新貝2500番地 2500,Shingai,Iwata-shi, Shizuoka 4388501, JP
Inventors:
山崎 豊 YAMAZAKI,Yutaka; JP
Agent:
山川 政樹 YAMAKAWA,Masaki; JP
Priority Data:
2013-19803625.09.2013JP
Title (EN) HYDRAULIC SHOCK ABSORBER
(FR) AMORTISSEUR HYDRAULIQUE
(JA) 油圧緩衝器
Abstract:
(EN) Provided is a hydraulic shock absorber with which the operability of a piston rod can be improved, an initial set load can be imparted to shock-absorbing rubber for a vehicle, and the ride quality of the vehicle can be improved. This hydraulic shock absorber is equipped with: a cylinder (2); a first support member (11); a cover member (12); a main piston rod (21) penetrating the first support member (11); an auxiliary piston rod (22); and a piston (13) between the two piston rods. In addition, a free piston (15) which is slidably fitted into the cylinder (2) is provided, and a pipe (90) passes through this free piston. A first oil chamber (16) and a second oil chamber (17) on either side of the piston (13) are connected via a restrictor. A second support member (14) separates the second oil chamber (17) and a third oil chamber (18), and the free piston (15) separates the third oil chamber (18) and a gas chamber (19).
(FR) La présente invention concerne un amortisseur hydraulique permettant d'améliorer l'efficacité fonctionnelle d'une tige de piston, de transmettre une charge définie initiale au caoutchouc amortisseur pour un véhicule, et d'améliorer la qualité de transport du véhicule. Ledit amortisseur hydraulique est équipé : d'un cylindre (2) ; d'un premier élément de support (11) ; d'un élément couvercle (12) ; d'une tige de piston principale (21) pénétrant dans le premier élément de support (11) ; d'une tige de piston auxiliaire (22) ; et d'un piston (13) entre les deux tiges de piston. De plus, un piston libre (15) qui est inséré de manière coulissante dans le cylindre (2) est prévu, et une conduite (90) passe à travers ledit piston libre. Une première chambre d'huile (16) et une deuxième chambre d'huile (17) de chaque côté du piston (13) sont raccordées via un étrangleur. Un second élément de support (14) sépare la deuxième chambre d'huile (17) et une troisième chambre d'huile (18), et le piston libre (15) sépare la troisième chambre d'huile (18) et une chambre à gaz (19).
(JA)  ピストンロッドの作動性を向上させることができるとともに、車両の緩衝用ゴムに初期設定荷重を付与することができ、車両の乗り心地を改善可能な油圧緩衝器を提供できる。 シリンダ(2)と、第1の支持部材(11)と、蓋部材(12)と、第1の支持部材(11)を貫通する主ピストンロッド(21)と、副ピストンロッド(22)と、両ピストンロッド間のピストン(13)と、を備える。パイプ(90)が貫通する状態でシリンダ(2)に摺動自在に嵌合したフリーピストン(15)をさらに備える。ピストン(13)の両側の第1の油室(16)と第2の油室(17)とが絞りを介して連通される。第2の支持部材(14)は第2の油室(17)と第3の油室(18)とを仕切り、フリーピストン(15)は第3の油室(18)とガス室(19)とを仕切る。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)