★★★ ＜第30回知的財産翻訳検定試験【第16回和文英訳】＞ ★★★
≪１級課題 -機械工学-≫【問 1】
A conventional squid fishing apparatus is configured as follows. The squid
fishing apparatus includes winch drums B, a hinged squid landing bay C,
guide rollers D, also referred to as tip rollers, and fishlines F to which
sinkers E are attached to the distal ends thereof, as illustrated in Figs. 7 and8. The winch drums B are disposed in a fixed manner on a hull A of a vessel
parallel to the side of the vessel. The squid landing bay C is disposed
outward of the side of the vessel at a position where the winch drums B aredisposed. The guide rollers D are attached to the distal end of the squid
landing bay C, and the fishlines F run over the guide rollers D from thewinch drums B and down into the sea. Drive motors drive the winch drums B
to winch up the fishlines F. Squid caught on fishhooks attached to thefishlines F drop onto the squid landing bay C while passing between theguide rollers D and the winch drums B. The squid that have been fished bythis squid fishing apparatus naturally fall onto the squid landing bay C
under their own weight while the fishhooks travel from the guide rollers D to
the winch drums B. This is advantageous in that little human labor isinvolved for landing the squid, and accordingly, the crew are able toconcentrate on operating and monitoring the apparatus and processing thelanded squid, work can be carried out efficiently with a relatively small crew,
and so forth.
[0003]
In such conventional squid fishing apparatuses, the winch drums aredisposed in a row following the side of the hull. This means that the numberof winch drums disposed is restricted by the length of the side of the hull,
and accordingly the number of squid fishing apparatuses that can beinstalled is unavoidably restricted in accordance with the size of the hull.
Moreover, the limit on the number of winch drums that can be disposed foreach squid landing bay in such conventional squid fishing apparatuses is one,or two at most. Further, the winch drums of conventional squid fishingapparatuses are disposed on the deck. Accordingly, there is danger of serious
accidents occurring during operation: there have been reports of incidents inwhich a worker was caught in a rotating drum during operation and in which

a sinker attached to a fishline being winched up flew across the deck andfatally struck a worker.

【問 2】[0014]
Reference numeral 41 denotes a drive-force/axial-force/motor-torquecalculating unit. Drive force, axial force, and motor torque are calculated
from load, shaft diameter, friction coefficient, and pressure angle stored in aload/shaft-diameter/friction-coefficient/pressure-angle storage unit 21 andfrom gear position and gear size stored in a gear-position/gear-size storage
unit 22. The principle of calculation will be described with reference to Fig. 2.
[0015]In Fig. 2, Gn denotes a current gear of interest, Gn-1 denotes a gear on thedrive side of Gn, and Gn+1 denotes a gear on the load side of Gn. Gn
receives a drive force Tn-1 in a direction of a pressure angle α with respect toa tangent to Gn-1 and receives -Tn+1 as a reactive force that provides a driveforce Tn+1 in a direction of a pressure angle α with respect to a tangent toGn+1.
[0016]The resultant force of these two forces is given as axial force An by Gn to ashaft Sn. Due to An, friction is generated between Gn and Sn when Gnrotates. Gn is subjected to a frictional force Rn that is the product of An anda friction coefficient. Accordingly, driving Gn requires, in addition to torquefor driving the load, the torque loss due to this frictional force, which is avalue including the product of the radius of the shaft and the frictional force.
Thus, calculating the drive force in which the load and the frictional loss foreach gear is combined, sequentially from the gear under load to the motor
gear, ultimately yields the necessary motor torque.

【問 3】
1.

A method for manufacturing a bed of a trailer (1), comprising:an internal bed unit forming step of forming an internal bed unit (70)by serially arranging and joining a plurality of bed constituent members (30)in a vehicle width direction by welding, the plurality of bed constituentmembers (30) extending in a vehicle longitudinal direction;a temporarily assembled bed unit forming step of forming atemporarily assembled bed unit (71) by temporarily assembling an end-part
bed constituting member (37) on either outer side in a width direction of theinner bed unit (70);a width dimension adjusting step of arranging the temporarily
assembled bed unit (71) between a pair of guide walls (75) placed at a
distance therebetween and fixing the end-part bed constituting members(37) to the guide walls (75) while adjusting a width dimension; anda welding step of joining the internal bed unit (70) to the end-part
bed constituting members (37) by welding,wherein the internal bed unit (70) is provided with a width adjusting
plate (50) having an adjustment allowance in a width direction of the bed oneither end in the width direction of the internal bed unit (70), and theend-part bed constituting member (37) is provided with a joint plate (55) tobe joined to the width adjusting plate (50) by welding, andthe temporarily assembled bed unit forming step includes
temporarily assembling the internal bed unit (70) to the end-part bed
constituting members (37) with the width adjusting plates (50) overlappedby the joint plates (55).