受験番号：24IPM003

問１[0002]

In a bicycle parking, there are bicycle parking apparatuses forlocking bicycles. A conventional bicycle parking apparatus includes a set ofopenable arms for locking a wheel of a bicycle above the ground. The arms
are closed with a spring when not being used. When the user of a bicycle
uses the bicycle parking apparatus to lock the bicycle, the user pushes thearms with the front wheel of the bicycle to open the arms. The front wheel
then comes in contact with a contact board, which activates a switch forclosing the arms with the spring. The front wheel is locked in this way. In
another conventional bicycle parking apparatus, the front wheel of a bicycleis placed on the parking position to press down the contact board engaged
with the openable arms, which closes the arms to hold the front wheel.
[0003]To accept various types of bicycles with different wheels in diameteror width and not to damage bicycles or others' properties, the openable arms
are designed to have some play in a bicycle parking apparatus. Due to theplay of the arms, if a front wheel is slanted or not placed in a right position,
the bicycle may not be locked properly.
問２
In the method for spraying fuel with the liquid spray valve including
a valve seat 10 having the valve seat surface 10a in the middle of the liquidpassage, the valve element 8 configured to come in contact with the valve
seat surface 10a to close the liquid passage and separate from the valve seatsurface 10a to open the liquid passage, the nozzle plate 11 disposed
downstream of the valve seat 10 and having a plurality of nozzles 12, theflow through and immediately downstream of the nozzles is converted to a
substantially liquid film flow, as described. The jet streams 30 and 31 fromthe nozzles 12 do not necessarily flow in the axial direction of the nozzles 12
and do not necessarily cross with each other downstream. After the jetstreams 30 and 31 from the nozzles 12 become sprays downstream and thesprays come close to each other into substantially one solid cone due to
Coanda effect between the sprays, the solid cone causes entrainment ofambient air based on the momentum theory of spray and generates the air
flow in the downstream direction of a certain area of the sprays. Until thesebehaviors become substantially unobservable, the injection quantity
distribution is continuously peaked substantially at the center and the angleof spray is continuously restricted, which enables the atomization of fuelspray as well as improves the designing flexibility in spray shaping, spraypatterning, and injection quantity distribution. It is obvious that theinjection quantity distribution is not necessarily peaked substantially at thecenter of the cross-sectional area of the spray and the angle of spray is notnecessarily as small as possible. It is also obvious that the nozzle plate 11
integrally formed with the valve seat 10 can achieve similar effects.
コメント・1 行目"fuel"入れました。
・参照符号"12, 12"は"12"に統一しました。
問３
1. A refill (2) for a ballpoint pen (2) comprising:a first cylindrical part (3) having an outer surface (5) adjacent to arear end (50),an elastic second cylindrical part (4) having an inner surface (6)disposed around the outer surface (5), andink (7) filled in the space formed by the first cylindrical part (3) andthe inner surface (6),wherein the outer surface (5) includes:
a first slanted portion (51) having an increasing outer
diameter with distance from the rear end,a first annular portion (52) continuous with the first slanted
portion (51),a second slanted portion (53) continuous with the firstannular portion (52) and having a decreasing outer diameter with distancefrom the rear end,
an annular recess (54) continuous with the second slanted
portion (53),a third slanted portion (55) continuous with the annular
recess (54) and having an increasing outer diameter with distance from therear end, anda second annular portion (56) continuous with the thirdslanted portion (55) and having a constant outer diameter,wherein the inner surface (6) has an inner diameter larger than theannular recess (54) and smaller than the outer diameter of the second
annular portion (56) before being assembled, andwherein the first annular portion (52) has an outer diameter larger
than the outer diameter of the second annular portion (56).