受験番号：26IPM009

問１[0009]In order to develop a napped pile cloth of which a grinning phenomenon does

not occur when the cloth is extended along a complex geometry or while the cloth isfolded, the inventors have conceived of the use of polyurethane elastic fiber for a groundweave of warp and weft yarns so as to impart elasticity to the ground weave of thenapped pile cloth, such as a moquette. The inventors have manufactured the cloth by
way of trial. The obtained cloth exhibits excellence in elasticity while the grinningphenomenon is suppressed to a certain extent. However, elongations of the cloth in thewarp and weft directions are not balanced, which causes generation of undulation orwarping on the surface of the cloth before the cloth is installed. This leads to a problem
that the undulation or warping of the cloth leads to deterioration of workability during
cutting and sewing the cloth, and the undulation of the surface of the cloth remains
after installation, which degrades external appearance of a product. In addition, theground weave is excessively elongative.

Accordingly, it is difficult to control pilegeneration during weaving, leading to defects, such as uneven cuts, while severing
double-pile fabric.
問２[0042]By pushing the blade 33 of the chisel 31 in this state so as to cause the blade

33 to be closer to the engraving object 38, as illustrated in the bottom view in Fig. 11,
the loop portion 18, which is formed of a soft synthetic resin, deforms in the direction
indicated by the arrow due to a reaction force form the engraving object 38. The loop
portion 18 deforms in such a manner allows the blade 33 of the chisel 31 to form adesired cutting groove while the blade 33 of the chisel 31 comes in contact with theengraving object 38. When the blade 33 of the chisel 31 is pushed further, the bottomside of the tip portion 20 of the loop portion 18 slides along the engraving object 38 withmovement of the blade 33 while the bottom side of the tip portion 20 is in contact withthe top surface of the engraving object 38. In this embodiment, when the chisel cover
16 is viewed from above, anything that hampers the use of the blade 33 also does notcover the blade 33.
[0043]

Thus, the tip portion 20 of the chisel cover 16 is, when use, always located in

front of the blade 33. Thus, if the left hand 44 is placed in front of the blade 33 and thechisel 31 is pushed inadvertently, the tip portion 20 touches the left hand 44, which
eliminates the likelihood of the blade 33 directly touching the left hand 44. In addition,
when the left hand touches the tip portion 20, the reaction force of the tip portion 20 istransferred to the tip face 35 of the chisel 31 via the body 17, which is the same as in thefirst embodiment. The further protrusion of the chisel 31 is reliably prevented.
問３
1. A link apparatus for a sliding door including three doors consisting of a left
door (4), a middle door (6), and a right door (5) that can open/close a front opening (2) ofa housing (1) and that is disposed so as to be movable in a right-left direction in such amanner that the three doors overlaps each other in a front-rear direction, the link
apparatus comprising:a guide rail (17) that is disposed on a back side of the middle door (6) andextends in an up-down direction, the guide rail (17) including an interconnection
member (10) that is disposed so as to be able to ascend/descend the guide rail (17); anda pair of right and left link bars (8, 9) that have one ends being turnably connected torespective back sides of the left door (4) and the right door (5) and have the other ends
being connected to the interconnection member (10), the pair of right and left link bars
(8, 9) enabling each of the three doors to move synchronously when the three doors
open/close, whereina moving distance of the left door (4) relative to the middle door (6) and amoving distance of the right door (5) relative to the middle door (6) are made different
when the three doors open/close by making an angle between an axis of one of the rightand left link bars (8, 9) and an axis of the guide rail (17) different from an angle of anaxis of the other one of the right and left link bars (8, 9) and the axis of the guide rail(17).