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1. (WO2017155107) BELT-TYPE GRINDING TOOL
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Pub. No.: WO/2017/155107 International Application No.: PCT/JP2017/009775
Publication Date: 14.09.2017 International Filing Date: 10.03.2017
IPC:
B24B 23/06 (2006.01) ,B24B 21/00 (2006.01) ,B24B 55/05 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
23
Portable grinding machines, e.g. hand-guided; Accessories therefor
06
with abrasive belts, e.g. with endless travelling belts; Accessories therefor
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
21
Machines or devices using grinding or polishing belts; Accessories therefor
B PERFORMING OPERATIONS; TRANSPORTING
24
GRINDING; POLISHING
B
MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
55
Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
04
Protective covers for the grinding wheel
05
specially designed for portable grinding machines
Applicants:
日東工器株式会社 NITTO KOHKI CO., LTD. [JP/JP]; 東京都大田区仲池上2丁目9番4号 9-4, Nakaikegami 2-chome, Ohta-ku, Tokyo 1468555, JP
Inventors:
鈴木 保全 SUZUKI, Yasumasa; JP
Agent:
伊藤 茂 ITOH, Shigeru; JP
海老 裕介 EBI, Yusuke; JP
Priority Data:
2016-04800811.03.2016JP
Title (EN) BELT-TYPE GRINDING TOOL
(FR) OUTIL DE MEULAGE DU TYPE À BANDE
(JA) ベルト式研削工具
Abstract:
(EN) Provided is a belt-type grinding tool in which a spring support member is prevented from pivoting in the direction in which compression of a spring is released due to an urging force received from the spring. This invention is provided with a spring support member (38) capable of pivoting between: a tension imparting position, at which a pressing support surface (46) presses an engaging part (44) of a spring seat (30), compresses and supports a spring (32) between the pressing support surface (46) and a pulley support bar (16), and applies tension to an endless grinding belt (20); and a tension release position at which the amount of compression of the spring (32) is reduced so that tension is reduced. The pressing support surface (46) of the spring support member (38) and the engaging part (44) of the spring seat (30) are shaped so that the line of action of a force received by the pressing support surface (46) from the engaging part (44) when the spring support member (38) is at the tension imparting position passes through the side of a pivot axis (R) in which a moment is produced that causes the spring support member (38) to pivot in the direction away from the tension release position.
(FR) La présente invention concerne un outil de meulage de type à bande dans lequel un élément de support de ressort est empêché de pivoter dans la direction dans laquelle la compression d'un ressort est relâchée en raison d'une force de poussée reçue du ressort. La présente invention est pourvue d'un élément de support de ressort (38) pouvant pivoter entre : une position de transmission de tension, à laquelle une surface de support de pression (46) appuie sur une partie de mise en prise (44) d'un siège de ressort (30), comprime et supporte un ressort (32) entre la surface de support de pression (46) et une barre de support de poulie (16), et applique une tension à une bande abrasive sans fin (20) ; et une position de libération de tension à laquelle la quantité de compression du ressort (32) est réduite de telle sorte que la tension est réduite. La surface de support de pression (46) de l'élément de support de ressort (38) et la partie de mise en prise (44) du siège de ressort (30) sont façonnées de sorte que la ligne d'action d'une force reçue par la surface de support de pression (46) depuis la partie de mise en prise (44) lorsque l'élément de support de ressort (38) est dans la position de transmission de tension passe à travers le côté d'un axe de pivotement (R) dans lequel un moment est produit qui entraîne le pivotement de l'élément de support de ressort (38) dans la direction opposée à la position de libération de tension.
(JA) スプリング支持部材が、スプリングから受ける付勢力によってスプリングの圧縮が解除される方向には枢動しないようにしたベルト式研削工具を提供する。押圧支持面(46)がスプリング座(30)の係合部(44)を押圧しスプリング(32)をプーリ支持バー(16)との間で圧縮して支持して無端研削ベルト(20)に張力を加えている状態とする張力付加位置と、スプリング(32)の圧縮の量を小さくして張力が小さくなるようにする張力解除位置との間で枢動可能とされたスプリング支持部材(38)を備える。スプリング支持部材(38)が張力付加位置にあるときにスプリング支持部材(38)の押圧支持面(46)がスプリング座(30)の係合部(44)から受ける力の作用線が、枢動軸線(R)に対してスプリング支持部材(38)を張力解除位置から遠ざける方向に枢動させるモーメントを生じさせる側を通るように、押圧支持面(46)と係合部(44)とが形状付けられている。
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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, DJ, 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, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, 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, ST, 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)