A bicycle cable includes an inner line and an outer sheath. The inner line connects a driving mechanism and a driven device of a vehicle therebetween. The driven device includes a brake device or a derailleur. The inner line has an outer diameter ranged between 1.2 mm to 1.4 mm. The outer sheath has an outer diameter ranged between 3.5 mm to 4.5 mm and an inner diameter ranged between 1.8 mm to 2.2 mm. The outer sheath is sleeved onto the inner line. A gap is formed between an inner face of the outer sheath and the inner line. The gap has a maximum ranged between 0.4 mm to 0.8 mm. A system of bicycle cable includes two said bicycle cables. One of the inner lines connects a brake driving mechanism and a brake device therebetween. The other one of the inner lines connects a derailleur driving mechanism and a derailleur therebetween.

A bicycle cable includes an inner line and an outer sheath. The inner line connects a driving mechanism and a driven device of a vehicle therebetween. The driven device includes a brake device or a derailleur. The inner line has an outer diameter ranged between 1.2 mm to 1.4 mm. The outer sheath has an outer diameter ranged between 3.5 mm to 4.5 mm and an inner diameter ranged between 1.8 mm to 2.2 mm. The outer sheath is sleeved onto the inner line. A gap is formed between an inner face of the outer sheath and the inner line. The gap has a maximum ranged between 0.4 mm to 0.8 mm. A system of bicycle cable includes two said bicycle cables. One of the inner lines connects a brake driving mechanism and a brake device therebetween. The other one of the inner lines connects a derailleur driving mechanism and a derailleur therebetween.

A control cable is provided with a coil spring that has a diameter that allows a wire diameter to enter a gap existing in a radial direction between a hollow member and a rod member having a fixing portion and configured to move inside the hollow member. The coil spring includes a small-diameter portion slidable along an outer peripheral surface of an inner cable, and a large-diameter portion having an inner diameter larger than an inner diameter of the small-diameter portion. The small-diameter portion is provided in a position where movement of the small-diameter portion in the radial direction is suppressed by the inner cable when the one end of the coil spring is pressed by the fixing portion, and thus, the position which entry of the coil spring into the gap can be suppressed.

An object of the invention is to provide an operation mechanism, an endoscope, and a manufacturing method that can reliably fix an operation wire to a member to be operated. According to an operation mechanism of an aspect of the invention, since a sleeve member is caulked in a caulked shape where a twisted shape of a plurality of strands of an operation wire is maintained, the sleeve member is caulked while the strands are maintained in an original line contact state. Accordingly, since damages to the strands caused by a point contact state of the strands do not occur, the tensile strength and bending durability of the operation wire are improved and the operation wire can be reliably fixed to a member to be operated. Further, since the sleeve member, which is externally fitted to the operation wire, is fixed to the member to be operated, other fixing members are not required. Accordingly, a fixing portion can be reduced in size.

An object of the invention is to provide an operation mechanism, an endoscope, and a manufacturing method that can reliably fix an operation wire to a member to be operated. According to an operation mechanism of an aspect of the invention, since a sleeve member is caulked in a caulked shape where a twisted shape of a plurality of strands of an operation wire is maintained, the sleeve member is caulked while the strands are maintained in an original line contact state. Accordingly, since damages to the strands caused by a point contact state of the strands do not occur, the tensile strength and bending durability of the operation wire are improved and the operation wire can be reliably fixed to a member to be operated. Further, since the sleeve member, which is externally fitted to the operation wire, is fixed to the member to be operated, other fixing members are not required. Accordingly, a fixing portion can be reduced in size.

A cable-driving arrangement of a vehicle includes a cable main body and a sheath. The cable main body is composed of a plurality of unit filaments, and distal ends of the unit filaments are melted to be integral to form a melted end. The cable main body is for being relatively positionably disposed on a vehicle with a portion near the melted end. The sheath is sleeved around the melted end.

A cable-driving arrangement of a vehicle includes a cable main body and a sheath. The cable main body is composed of a plurality of unit filaments, and distal ends of the unit filaments are melted to be integral to form a melted end. The cable main body is for being relatively positionably disposed on a vehicle with a portion near the melted end. The sheath is sleeved around the melted end.

A variable-rigidity device includes a tubular member including a plurality of high-rigidity portions and low-rigidity portions arranged along a longitudinal axis, a core member arranged on an inner side of the tubular member and including a plurality of high-rigidity core portions and low-rigidity core portions; and an actuator configured to relatively move the core member with respect to the tubular member, in which the actuator is configured to cause a first force to repeatedly fluctuate with a passage of time, the first force causing the core member to relatively move with respect to the tubular member in an axial direction along the longitudinal axis.

A variable-rigidity device includes a tubular member including a plurality of high-rigidity portions and low-rigidity portions arranged along a longitudinal axis, a core member arranged on an inner side of the tubular member and including a plurality of high-rigidity core portions and low-rigidity core portions; and an actuator configured to relatively move the core member with respect to the tubular member, in which the actuator is configured to cause a first force to repeatedly fluctuate with a passage of time, the first force causing the core member to relatively move with respect to the tubular member in an axial direction along the longitudinal axis.

A gear selector assembly configured to establish a mechanical connection between an operator of the vehicle and a gear selector of a manual transmission. The gear selector assembly includes a gear shift lever and a shift linkage assembly. The gear shift lever includes a shift output member configured for rotational and axial movements in response to the movements of the gear shift level. The shift linkage assembly includes a shift cable rod having a flexible cable, a flexible housing surrounding the flexible cable, and a housing jacket surrounding the flexible housing. The flexible cable includes an input end configured to operably connect to the shift output member for receiving the rotational and axial movements, and an opposite output end configured to operably connect to the gear selector for transmitting the rotational and axial movements to the gear shift selector.