Abstract: A catheter tube has a single-lumen distal-side tube and a single-lumen proximal-side tube, the distal-side tube and the proximal-side tube are connected in such a way that a lumen of the distal-side tube and a lumen of the proximal-side tube communicate with each other, a guide wire port that opens to the outside is provided in the distal-side tube, and the inner diameter of the lumen of the proximal-side tube is smaller than the inner diameter of the lumen of the distal-side tube,

Abstract: A medical catheter includes: a sheath having a guide wire lumen through which a guide wire is passed and a guide wire port formed in an outer peripheral surface, the guide wire port communicating with the guide wire lumen; a sloped portion that is a portion of the sheath dropped into the guidewire lumen, the sloped portion being provided continuously from an inner wall of the guide wire lumen through the guide wire port to the outer peripheral surface; and a reinforcing portion that is a portion of the sheath softened or melted to be deformed by heating, the reinforcing portion being provided to a proximal end side of the sloped portion in the guide wire lumen, wherein a height of the reinforcing portion is 30% or more of an inner diameter of the guide wire lumen.

Abstract: A shift mechanism for a transmission includes: an inner lever operated in response to an operation force; a shift head configured to engage with the inner lever and to move in a shift direction; a shift fork having the shift head; a shift fork shaft equipped with the shift fork and supported to be movable in the shift direction; a positioning mechanism positioning the shift fork shaft that is movable in the shift direction; a case housing the shift mechanism therein; and at least one stopper arranged to face the shift head along the shift direction and configured to impact with the shift head when the shift fork shaft is moved to a predetermined shift position along the shift direction.

Abstract: A gear type transmission comprising a casing, an input shaft supported by the casing, an output shaft supported by the casing and disposed coaxial to the input shaft, a counter shaft supported by the casing and disposed parallel to and axially offset from the input and output shafts, plural pairs of shift gears mounted on the input and counter shafts for engagement with each other, a pair of output gears on the output and counter shafts for engagement with each other, one gear of at least a low shift side of the plural pairs of shift gears fixed to the input shaft so as to rotate always simultaneously with the input shaft, the other gear of the low shift side of the plural pairs of shift gears attached to the counter shaft so as to rotate freely to the counter shaft, and a synchronized equipment mounted on the counter shaft and operating so as to make it rotate the other gear of the low shift side simultaneously with the counter shaft.

Abstract: An erroneous gearshifting prevention mechanism includes a sliding lever mounted on a shift lever shaft supported on a case cover attached to a transmission case. The sliding lever has a projection including a slanted surface engageable with a reverse restriction pin rotatably and axially movably disposed in a boss integral with the case cover. When a shift lever mounted on the shift lever shaft is shifted in error from a fifth-speed gear position toward a reverse gear position, the projection is engaged by the reverse restriction pin and prevented from further movement. Any force imposed by the projection on the reverse restriction pin is directed by the slanted surface toward a relatively thick wall portion of the boss. The boss is thus protected against damage or breakage.

Abstract: A shift lever support mechanism for a transmission comprises a shift lever having a partly spherical pivot body and a distal end extending from the partly spherical pivot body for engagement with a gear shifting actuator shaft of the transmission, a retainer member adapted to be mounted on the transmission casing and having a bore accommodating the spherical pivot body therein, the retainer member including a partly spherical seat supporting the partly spherical pivot body, the retainer member having a central opening through which the distal end extends, resilient means disposed in the bore in the retainer member for normally urging the partly spherical pivot body against the partly spherical seat, and a boot mounted on the shift lever and the retainer member and defining a space therein communicating with the bore in the retainer member.

Abstract: A shift mechanism for a change-speed gear transmission includes a manual gearshift lever arranged to be selectively shiftable toward forward speed-ratio and reverse-ratio positions at the same gate in a gearshift pattern, a movable member integral with a selector shaft mounted within a housing assembly of the gear transmission for both axial and rotary movement and being operatively connected to the gearshift lever to be axially moved in selecting operation of the gearshift lever toward the gate and to be rotated in shifting operation of the gearshift lever toward one of the forward speed-ratio and reverse-ratio positions.