JPS6198794U

JPS6198794U -

Info

Publication number: JPS6198794U
Application number: JP16741285U
Authority: JP
Priority date: 1984-10-31
Filing date: 1985-10-30
Publication date: 1986-06-24
Also published as: CN85204536U

Description

[Brief explanation of the drawing]

第１図は、この考案の実施例の概略正面図、第
２図は、第１図の工具の−に沿つた側面図、
第３図は、側板を除去してブレーキ装置をあらわ
した第２図と類似の図面、第４図は、同上のスプ
ロケツトの一変形例の側面図、第５図は、この考
案の工具とともに用いる滑車ブロツクの概略側面
図、第６図は、この考案の工具のブレーキ装置の
一変形例を示す概略側面図、第７図は、この考案
の工具のブレーキ装置の別の変形例を示す概略端
面図、第８図から第１０ａ図及び第１０ｂ図まで
は２つの爪をもつこの考案の工具の爪装置の変形
例の分解斜視図、平面図、及び２つの位置におけ
る側面図、第１１図は、２つの爪をもつこの考案
の工具の爪装置のさらに他の変形例の平面図、第
１２図は、第１１図の−に沿つた断面図
を示す。１０……鎖伝動工具、１２……ハウジング、１
４……スプロケツト、１５……駆動ナツト、１６
……ブレーキ装置、３０……軸、３２……平面部
分、３４……溝、３６……ピン、３８……ハブ、
４６……平ばね、４８……爪装置、６０……ブレ
ーキバンド、６２……調節ねじ、６４，６５……
ナツト、６６……ブレーキシユー、７０……スプ
ロケツト、７２……平面部分、７４……ピン、９
２……ブレーキ装置、９４……板、９８……ボル
ト、１００……ブツシユ、１０２……ナツト、１
３０……ブレーキ装置、１３２……ワツシヤ、１
３４……円板、１３６……圧力板、１３８……キ
ー部分、１４０……囲いチユーブ、１４２……閉
じナツト、１４４……調節ねじ、１５０，１７０
……複爪装置、１５２，１７２……長爪、１５４
，１７４……レバー、１５６，１７６……短爪、
１５８……基部、１６２……ばね、１６４……３
脚部、１６８，１７８……横ピン。 FIG. 1 is a schematic front view of an embodiment of the invention, FIG. 2 is a side view of the tool shown in FIG.
Fig. 3 is a drawing similar to Fig. 2 with the side plate removed to show the brake device, Fig. 4 is a side view of a modified example of the same sprocket, and Fig. 5 is used with the tool of this invention. FIG. 6 is a schematic side view of a pulley block, FIG. 6 is a schematic side view showing a modification of the brake device of the tool of this invention, and FIG. 7 is a schematic end view showing another modification of the brake device of the tool of this invention. 8 to 10a and 10b are exploded perspective views, top views, and side views in two positions of a modified example of the pawl device of a tool of this invention having two pawls, and FIG. 11 is a side view in two positions. , FIG. 12 is a plan view of still another modified example of the pawl device of the tool of this invention having two pawls, and FIG. 12 shows a sectional view taken along - in FIG. 11. 10...Chain transmission tool, 12...Housing, 1
4... Sprocket, 15... Drive nut, 16
... Brake device, 30 ... Shaft, 32 ... Plane part, 34 ... Groove, 36 ... Pin, 38 ... Hub,
46... Flat spring, 48... Pawl device, 60... Brake band, 62... Adjustment screw, 64, 65...
Nut, 66... Brake shoe, 70... Sprocket, 72... Flat part, 74... Pin, 9
2... Brake device, 94... Plate, 98... Bolt, 100... Bush, 102... Nut, 1
30... Brake device, 132... Washer, 1
34... Disk, 136... Pressure plate, 138... Key portion, 140... Enclosing tube, 142... Closing nut, 144... Adjusting screw, 150, 170
...Multiple claw device, 152, 172...Long claw, 154
,174...Lever, 156,176...Short claw,
158...Base, 162...Spring, 164...3
Legs, 168, 178...horizontal pins.

Claims

[Claims for Utility Model Registration] 1. A housing 12, sprockets 14, 70 rotatably supported by the housing, a drive 18 for rotating the sprockets, and an elastically biased sprocket for preventing undesired movement of the chain. Claw device 48
, 150, 170, and a brake device 16, 92, 130 that frictionally engages with the sprocket,
Chain transmission characterized in that the pawl devices 48, 150, 170 are selectively movable between an active position in which undesired movement of the chain is prevented and an inactive position in which free movement of the chain is allowed. tool. 2. The sprockets 14, 70 are sized to sequentially engage the chain links of a studless link type chain, and have two portions having a polygonal cross section with a plurality of planar portions 32, 72; The sections are separated from each other by a circumferential groove 34 formed therebetween, and angularly spaced pins 36, 74 extend outwardly from the planar section for successive engagement with the links of the chain. A chain transmission tool according to claim 1 of the extended utility model registration claim. 3 Pairs of pins 36, each of which is arranged parallel to each other at intervals along the axial direction of the sprocket 14.
A chain transmission tool according to claim 2 of the utility model registration claim. 4. Utility model registration in which the brake device 16, 92 is constructed integrally with the sprocket and has a cylindrical hub 38 axially spaced apart on the shaft 30 of the sprocket, and an actuating member disposed in the housing that engages the hub. A chain transmission tool according to claim 1. 5. A band 60, 92, in which the transmission member extends around at least a portion of the hub 38, and a device 62, 64, 65, 9 for tensioning this band against the hub.
8,100,102 The chain transmission tool according to claim 4 of the utility model registration claim. 6. Utility model registration claim 5, in which the actuating member has a brake shoe 66, and the tensioning device is arranged to pull the band against the hub 38 and at the same time push the shoe 66 toward the hub. Chain transmission tool as described in section. 7. The chain transmission tool according to claim 1, wherein the brake device 130 includes a washer 132 integrated with a sprocket, and devices 134 to 144 that apply an axial braking force to the washer. 8 first pawl 152 that can be sequentially engaged with the chain link;
172 and second claws 156, 176. The chain transmission tool according to claim 1, which is a utility model. 9 A pawl device is attached to each spring 164 for engaging the chain.
two sets of claws 152, 1
56; 172, 176 are supported on the same axis, one pawl carrying a transverse pin 168, 178 such that the other pawl is moved together from an operative position to an inactive position. Chain transmission tool according to scope item 8.