JPH041295U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例を示す全体縦断面図、
第２図は本考案の要部を示す拡大断面図、第３図
は本考案の他の実施例を示す横断面図、第４図は
第３図の−線拡大断面図、第５図は第４図
の詳細断面図、第６図は計測手段の他の実施例を
示す断面図である。 図中、１はシールドフレーム、３はカツターフ
レーム、４は駆動軸、７はオーバーヘツドカツタ
、１５はワイヤ、１６は計測手段である。 FIG. 1 is an overall longitudinal sectional view showing an embodiment of the present invention;
Fig. 2 is an enlarged cross-sectional view showing the main parts of the present invention, Fig. 3 is a cross-sectional view showing another embodiment of the present invention, Fig. 4 is an enlarged cross-sectional view taken along the - line in Fig. 3, and Fig. 5 is a cross-sectional view showing another embodiment of the present invention. FIG. 4 is a detailed sectional view, and FIG. 6 is a sectional view showing another embodiment of the measuring means. In the figure, 1 is a shield frame, 3 is a cutter frame, 4 is a drive shaft, 7 is an overhead cutter, 15 is a wire, and 16 is a measuring means.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] シールドフレーム前端部に回転自在に設けられ
たカツターフレームの外周部に、これより径方向
外方に伸縮自在にオーバーヘツドカツタを設けた
シールド掘進機において、上記オーバーヘツドカ
ツタの伸縮可動部に一端側を連結し、他端側を上
記カツタフレームの駆動軸中を挿通させてその後
端部から延出させたワイヤを設け、該ワイヤの他
端部に、そのワイヤの移動量を計測して上記オー
バーヘツドカツタの伸縮量を検知する計測手段を
設けたことを特徴とするシールド掘進機。 In a shield excavator in which an overhead cutter is provided on the outer periphery of a cutter frame that is rotatably provided at the front end of the shield frame, and is provided with an overhead cutter that can be expanded and contracted radially outward from the cutter frame, one end is attached to the extendable and retractable part of the overhead cutter. A wire is provided, the other end of which is inserted through the drive shaft of the cutter frame and extends from the rear end, and the amount of movement of the wire is measured at the other end of the wire. A shield excavator characterized by being equipped with a measuring means for detecting the amount of expansion and contraction of an overhead vine.