STRETCHABLE DEVICE
According to an aspect, a stretchable device includes: a stretchable substrate comprising bodies and hinges that couple the bodies to each other; and a pair of stretchable resins with the stretchable substrate interposed therebetween. The stretchable device includes a detection region in which a load is capable of being detected and a non-detection region when viewed in a stacking direction in which the stretchable substrate and the stretchable resins overlap. One or more of the hinges are detection hinges each provided with a strain gauge. All of the detection hinges overlap the detection region when viewed in the stacking direction. The stretchable resins each includes: a bonded region that overlaps the non-detection region when viewed in the stacking direction and is bonded to the stretchable substrate; and an unbonded region that overlaps the detection region when viewed in the stacking direction and is not bonded to the stretchable substrate.
1 . A stretchable device comprising:
a stretchable substrate comprising a plurality of bodies and a plurality of hinges that couple the bodies to each other; and
a pair of stretchable resins with the stretchable substrate interposed therebetween, wherein
the stretchable device includes a detection region in which a load is capable of being detected and a non-detection region when viewed in a stacking direction in which the stretchable substrate and the stretchable resins overlap,
one or more of the hinges are detection hinges each provided with a strain gauge,
all of the detection hinges overlap the detection region when viewed in the stacking direction, and
the stretchable resins each includes:
a bonded region that overlaps the non-detection region when viewed in the stacking direction and is bonded to the stretchable substrate; and
an unbonded region that overlaps the detection region when viewed in the stacking direction and is not bonded to the stretchable substrate.
2 . The stretchable device according to claim 1 , wherein, of the bodies, the body coupled to the detection hinge overlaps the detection region when viewed in the stacking direction.
3 . The stretchable device according to claim 1 , wherein the unbonded region has a hole passing through the stretchable resin.
4 . The stretchable device according to claim 2 , wherein the unbonded region has a hole passing through the stretchable resin.
5 . The stretchable device according to claim 1 , wherein
the stretchable resins each have:
a counter surface facing the stretchable substrate; and
an opposite surface facing opposite to the counter surface, and
the unbonded region is provided with a recessed surface recessed toward the opposite surface.
6 . The stretchable device according to claim 2 , wherein
the stretchable resins each have:
a counter surface facing the stretchable substrate; and
an opposite surface facing opposite to the counter surface, and
the unbonded region is provided with a recessed surface recessed toward the opposite surface.
7 . The stretchable device according to claim 5 , wherein a viscous fluid is disposed in the recessed surface.
8 . The stretchable device according to claim 6 , wherein a viscous fluid is disposed in the recessed surface.
9 . The stretchable device according to claim 1 , wherein the unbonded region is provided with a contact surface in contact with the stretchable substrate.
10 . The stretchable device according to claim 2 , wherein the unbonded region is provided with a contact surface in contact with the stretchable substrate.