MULTI-JOINT SPANNER
To provide a spanner that has bolt/nut operation parts arranged at both sides of a handle bendable at a plurality of points, is capable of fastening and unfastening of bolts and nuts of three or more sizes, is compact in the whole size and excellent in resistance, and is less likely to subject to us...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a spanner that has bolt/nut operation parts arranged at both sides of a handle bendable at a plurality of points, is capable of fastening and unfastening of bolts and nuts of three or more sizes, is compact in the whole size and excellent in resistance, and is less likely to subject to usage regulations.SOLUTION: A multi-joint spanner is composed of two members: a first link 2 and a second link 3 added between adjacent first links 2. A handle 5 having the first links 2 at opposite ends thereof is constituted by respective connection of one end of the first link 2 and one end of the second link 3 to the other end of the second link 3 and the other end of the first link 2 via a hinge pin 4. Bolt/nut operation parts 6, 7 are connected via the hinge pin 4 between left and right link plates 2a, 2a at the opposite ends of the handle 5, and the second link 3 is formed with an operation hole 9 for engagement of a bolt and a nut different in size from the bolt/nut operation parts 6, 7 at the opposite ends of the handle 5.SELECTED DRAWING: Figure 1
【課題】複数個所で屈曲可能な柄の両端にボルト・ナット操作部を設けたスパナであって、３サイズ以上のボルト・ナットの締め外しを行え、全体サイズがコンパクトで耐性などにも優れ、使用規制も受け難いものを提供する。【解決手段】多関節スパナを、第１リンク２と、隣り合う第１リンク２間に継ぎ足される第２リンク３の２者からなり、前記第１リンク２の一端と第２リンク３の他端及び第２リンク３の一端と第１リンク２の他端がヒンジピン４を介してそれぞれ連結されて両端に第１リンク２を備えた柄５が構成され、その柄５の両端の左右のリンクプレート２ａ、２ａ間に、ボルト・ナット操作部６、７がヒンジピン４を介して連結され、前記第２リンク３に、柄５の両端のボルト・ナット操作部６、７とはサイズの異なるボルト・ナット係合用の操作穴９が形成されたものにした。【選択図】図１ |
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