The control cable of the current invention includes a conduit having flexibility, inside surface of which being fitted with a liner, and an interior cable having an inside coat, which is inserted into the conduit so that the internal cable free slides in the conduit. For example, in case the scarcity of lubricants is generated as a result of lengthy period use of the control cable, there are some issues that the liner is completely worn down and the operationability of the control cable is excessively lowered, and the like. In the current invention, since the organopolysiloxane having an ultra-excessive viscosity and the organopolysiloxane having a decrease viscosity are dispersively contained within the thermoplastic resin used within the above-mentioned liner, it is after all that there isn't any necessity to make use of a lubricant between the interspace of the conduit and the inside cable, and an excellent perform that the sliding operation of the conduit and the inside cable may be easily carried out for a protracted period of time, is exhibited. When the kinematic viscosity exceeds 10000 cSt, the organopolysiloxane doesn't bleed out from the thermoplastic resin sufficiently, and the load efficiency is lowered. When the kinematic viscosity is lower than 25 cSt, the organopolysiloxane having a decrease viscosity is evaporated in a short time, and the wear and tear of the liner are generated during the control cable is used.

The item of the current invention is to delete the above-mentioned disadvantages of typical management cables and to provide a management cable which doesn't necessitate a lubricant to keep away from a complex coating operation and which can be utilized with clean sliding operation of the inner cable for a protracted time period. FIG. 1 is a partially-reduce-off perspective view showing one embodiment of the control cable of the current invention. When the content of the organopolysiloxane is lower than 13% by weight, shield control cable the load efficiency is lowered when the control cable is used for a long time frame. The consultant examples of the organopolysiloxane having a lower viscosity are, as an illustration, dimethylpolysiloxane, methylalkylpolysiloxane, methylphenylpolysiloxane, methylaminoalkylpolysiloxane, methylfluoroalkylpolysiloxane, and the like. The typical examples are, as an illustration, dimethylpolysiloxane, methylalkylpolysiloxane, methylphenylpolysiloxane, methylaminoalkylpolysiloxane, methylfluoroalkylpolysiloxane, and the like. Representative examples of the type II are, for example, Teflon (Registered Trademark) PFA 340-J commercially out there from DUPONT-MITSUI FLUORO CHEMICALS CO., LTD., and the like.

The control cable has been conventionally used in an effort to function a transmission utilized in cars, autobicycles, bicycles and the like, a brake, a clutch, a speedmeter, and the like. FIG. 2 is an illustrative view of an apparatus for measuring the properties of the control cable of the present invention. When the melt index of the polybutylene terephthalate is less than 0.1 g/10 minutes, it is tough to provide a liner by way of an extruder, and when the melt index exceeds 5 g/10 minutes, there is a tendency that the liner is easily peeled off from the conduit due to the lack of toughness of the liner throughout forming the liner and that bodily properties comparable to durability and abrasion resistance required for the liner are usually not easily exhibited. However, there are several problems, within the control cable wherein a lubricant is used, similar to issue of operation for coating as a result of dispersion of the load efficiency of merchandise is attributable to the unevenness of a coating, rubbishes and dusts are easily adhered to the lubricant when applying the lubricant to the management cable, and drip and the like are generated.

However, when a organopolysiloxane having too low a viscosity is contained in a big quantity within the resin, there may be a problem that the organopolysiloxane can't be successfully extruded to supply a liner, and thus the molding cannot be carried out because of the slipping of the resin on the cylinder barrel within the extruder. When the content material is extra that 20% by weight, an extruded product can't be produced as a result of a slip of a resin occurs on a cylinder barrel in an extruder and the constant feed of the resin cannot be carried out. When the content of the organopolysiloxane having an extremely-high viscosity is less that 45% by weight and the content material of the organopolysiloxane having a lower viscosity is more that 55% by weight, an extruded product can't be produced because a slide between a screw and a resin happens in an extruder and the feed of the resin cannot be carried out. Out of the full number of rods, 40 ones are used for vitality distribution management through the hight of the energetic zone of the reactor. However, when the viscosity of the organopolysiloxane is too excessive, the amount of the organopolysiloxane which is extided from the surface of the resin is little, and according the load efficiency and sturdiness of the management cable cannot be improved sufficiently.