Otona no Kagaku Karakuri User manual

Otona no Kagaku
(Sophisticated Science Kit Series forAdults)
Karakuri
iSomersaultDoll
Experiencethefinetechnologyof
Edoperiodthroughthedolls
whichgoesdownthestairs
withoutusingmotivepower.

＊"Karakuri"meansthemechanism
thatdrivesamachine.


2
CC
CCOO OONN NNTT TTEE EENN NNTT TTSS SS
Contents and Cautions 2
Parts in this Kit 4
Attaching Sleeves 5
Stringing 6
Checking the Motion 8
Dressing the Doll in Hakam 10
Dressing the Doll
in the Jacket 12
Attaching the Head 13
Assembling the Pedestal 14
Adjusting the heights
of the step 16
Setting the Doll in Motion 17
Unsuccessful Case
Falling Down from the Step 18
Unsuccessful Case
Going off to the side How to
display the doll 19
The plastic materials used in this kit
face (white) : HIPS body arm (red white) : PC post (black) : ABS
handle of the screwdriver (yellow) : PE small bag (transparent) : PE
The metallic materials used in this kit
iron ball : iron screw : nickel-plated iron
When disposing of the kit, please follow the recycling regulations in your area.
CAUTION! Please read the following instructions before using this kit.
To avoid danger of suffocation, do not swallow small parts such as iron
balls and screws.
To avoid danger of injury, use great caution not to point your hands and
eyes with the screwdriver and the like in this kit.
Please read the assembly instructions and cautions in this booklet
carefully before use. Do not use the parts that are broken or deformed
while in use.
Please handle the doll with care. The doll may be broken if it is treated
roughly. For example, do not shake it with its head down.
The colors may fade out of the clothes when it is exposed to the sun.
Keep the doll with care.
Do not wash clothes with whites. The colors may be washed off and
stain whites.
3

Parts in this Kit
54
The following diagrams illustrate the left arm, but the same way
applies to the right arm too.
Stick a sleeve to the inside of an arm
with both sides adhesive tape
both sides adhesive tape (Cut
it short as shown in this figure.)
sleeve (right and
left are the same)
Stick another both sides adhesive
tape on the stuck end of the sleeve
and bring the other end around the
arm and stick it on.
both sides adhesive
tape
Stick another piece
on the cloth.
Stick the sleeve near to the hand. (Leave
1mm room.)
Overturn the arm and stick the shoulder
part of the sleeve with a both sides adhesive
tape .
both sides adhesive tape Stick this part.
Make sure that the sleeve fits neatly.
Check from the front and
attach the sleeve so that the
cloth doesn't go inside.
Notice!
inside
Make sure that
the shoulder
part doesn't
cross this line.
Attaching Sleeves
body
right arm left arm
hair accessory (2)
sleeve (2)
jacket
hakama back flap
tweezers
screwdriver
pedestal A
pad iron ball (4)
wedge (4)
Cut them off
to use. Two is
for spare.
connector (2)
screw (16)
gauge
gold tape
step (3)
post (long, middle, short)
adjuster
both sides adhesive tape
Tapes are numbered for
convenience in the figure
below but not on the real tape.
head
string
tube
Things you will need
scissors, ruler, pencil
adjuster
pedestal B
leg (4) adjuster

7
6
The following diagrams illustrate the left arm but the
same way applies to the right arm too.
Undo the string from the core and
cut in half. Tie one of the strings
to the A part at the shoulder joint
with the tweezers.
Make a loop at the
end of the string.
Do not dispose the core of the string because it can be used as a doll stand afterward.
Put the end of
the string through
the loop twice.
Pull the end of the string and tie.
Bring the knot close to the arm.
Make a knot first, then
bring it close to the arm.
Put the longer part of the string through the
hole B in the projection at the shoulder joint
and then through the hole C in the
projection at the armpit of the body.
Attach the arm to the body.
Snap it in so that the
projections fit in the holes.
Be careful so
that the string
isn't caught in
the shoulder.
Put the end of the string through the
projection with a hole at the shoulder joint.
There are two holes, so make sure the
string goes through the hole A first.
A
C
B
Back
Notice!
Trim off the shorter end of the string which doesn't go through
the holes B and C with scissors.
Check the motion after both arms are attached.
Check!
Check that the
sleeves don't touch
the shoulders and
both arms move
smoothly.
Put the string from the hole C through the hole
D and hole E in the side of the body. Then put
it through the hole F in the prop between the
knees and lastly put it through the hole G
twice and pull it down. (It makes one loop.)
Do the same thing with the other side.
Let's continue the stringing at the side of the body.
Cut the tube into 5mm. Put the string
coming from the hole G through the tube
and fix with a wedge. Do the same thing
with the other side.
Drive wedges.
5mm
tube
E
C
F
G
DE
C
F
G
D
tube
wedge
string
Stringing Fishlines (0.074mm in diameter)
can be used as a substitute.

Checking the Motion
98
Adjust the tension of the strings.
Front
Back
Bring the tubes near to the prop with
the arms staying at the position shown
in the figure 55..(The arms are down at
the front.)
Turn the body upside down. Bend
the legs until it comes to the position A
and then let go of them. If the legs go
back to the position B, the tension is
adequate.
When the legs doesn't go up to the position B
Hold the tube and pull the string to get higher tension.
When the legs go higher than the position B
If the legs go higher than the position B, loosen the tension as shown in the upper
diagram.
When the legs go higher than the position
B, that is, the tension of the string is too
strong; push the strings lightly with a
finger at the arrow part shown in the
diagram above and loosen the tension.
A
B
Push slowly.
Keep the hand closest to the body.
Stand the doll with the arms
down in front, and then
push back the doll softly.
The doll puts
hands on the
floor and does a
somersault.
It makes a landing with its
hands on the floor as shown
in the diagram below. It is
all right if a sequence of
motion goes smoothly.
Finale!
Unsuccessful Case 1: When the tension of the
string is too loose (or the string is too long), the
doll doesn't turn arms to the back and fall down
from the head.
Unsuccessful Case 2: When the tension of the
string is too tight (or the string is too short), the
doll doesn't do a somersault and stops halfway.
In either case, make adjustment again as 77
above.
When the check is
finished, cut the
strings with 20mm
margins. Also,
remove the head and
take out the balls.
Put three iron balls in the
body and set the head
and check the motion.

1110
Stick a both sides adhesive tape on
the belly in front of the body. Bring the
center mark of the hakama to the center
of the body and stick it with the tape.
front
front
Line the top of
the tape along the
projections.
both sides
adhesive tape
projection
the front of
the hakama
First, fold the hakama in half
and mark the center with a
pencil. Then, put the legs
through the hakama.
center
Check!
After the belly part of the hakama
is attached, bend the body to check.
If the knee parts are too tight,
remove the hakama from the belly
and stick again a little lower.
Stick both sides adhesive tapes
over the heels and the ankles and
stick the bottoms of the hakama
with the tapes.
Check if this part is too tight.
Keep the bottom
of the hakama
above the heel.
both sides adhesive
tapes
Stick the belly part of the hakama
with a both sides adhesive tape .
Leave 3mm room at the back.
Attach the pad to the back.
pad
back
back
both sides
adhesive tape
Leave 4mm
room from
the top.
about
3mm
the line to
fit the top of
the sticker
Check!
front
a half-cut of a both sides
adhesive tape
Overturn the doll and make
tucks from both side to fit the
waist and stick with a half-cut of
a both sides adhesive tape .
After the doll is dressed in hakama, put in
three iron balls and set the head and check
the motion just like the Checking the Motion
part.
If it doesn't somersault smoothly, adjust the
position where the hakama is attached.
Remove the head and
iron balls after the check.
Dressing the Doll in Hakama

1312
The green side is the
obverse of the back flap.
Use the projection under
the jacket as a guide.
front
Notice!
back both sides
adhesive
tape
The side with
decorations comes to
the front.
Stick both sides
adhesive tapes
on both shoulders
of the body and
put the jacket on
and stick it.
Stick a half-cut of a both
sides adhesive tape to
the back of the jacket.
Stick the back flap
and bring the laces
to the front.
Tie the laces in front
and tuck the ends in.
Stick two both sides
adhesive tapes
leaving 1mm rooms
and then stick the
back flap with them.
Stick the jacket
carefully so that the
frills don't go out to the
shoulders.
Keep the frills inside of
these lines.
half-cut of a
both sides
adhesive
tape
frill
side view
Leave 1mm room.
Leave 1mm room.
both sides adhesive
tape
Attach hair accessories with both
sides adhesive tapes .
Usually, three iron balls are put in the
body; however, if the doll stops halfway of the
steps, putting in one more ball may make the
doll move smoother. Also, use four balls to
make the doll move faster.
both sides adhesive
tapes
Put three iron balls and set the head.
about 8mm
from eyebrow.
about 7mm from
the forehead.
Dressing the Doll in the Jacket Attaching the Head
Attaching the Back Flap
front
Now, Somersault
Doll is complete!

Assembling the Pedestal
1514
Connect the pedestal A and the pedestal B by putting the projections into
halls. Make sure that two parts are connected flat and then fasten them
with screws. Push the screws in completely.
Attach the connectors to the pedestal with screws. The connectors are same
in shape. Make sure the side with gold line comes outside when attaching.
Attach legs to the pedestal. Check the directions of the legs when attaching and
push them in completely.
connector
connector
screw
screw
screw
screw screw screw screw screw screw screw
pedestal
leg
leg
leg
leg
Put in the legs firmly so as not to be rickety.
Stick gold tapes on the sides of the steps. (Use all three tapes.)
Stick on the inner girth.
Attach the steps and posts in the following order.
Put projections of the posts into the pedestal.
Fasten with screws from the bottom side.
Screw in the adjusters and steps.
Bottom View
short post
The projection
of the post.
The long post and
the middle post can
move right and left.
Attach them at the
center tentatively.
adjuster adjuster
adjuster
middle
post
long post
step
step
step
screw
screw
screw
screw
screw
Notice: The short post cannot move.
screw

1716
Loosen the adjuster
of the lower step. Turn the step to align the top with the tip of the
gauge. Next, adjust the heights of the middle
step in the same way, and then the upper step.
Lastly, screw the adjuster to fasten
the lower step. Fasten the middle
step and the upper step in the same
way.
Keep the heights of each step and
adjust the direction of the steps so
that the sides form a straight line
when looking from the top.
Lay on the sides on a flat table to adjust
easily.
Adjust the steps
from the lower one
with the gauge as
shown in the
diagram.
Align the top of
the steps with the
tip of the arrow of
the gauge.
gauge
the lower
step
the lower
step
the middle
step
the middle
step
the upper step
the upper
step
higher lower
Turn the adjuster clockwise
looking from the top.
The same way applies to the
middle and the upper steps.
adjuster
Turn the adjuster
looking from the top.
counterclockwise
Though the instructed number of the
iron balls to put in is three, increasing
and decreasing the number changes the
motion. When four balls are put in, the
motion becomes quicker because of the
weight. When two balls are put in, the
motion becomes slower.
Changing the tension of the string as
instructed at in Stringing changes
whole motion of the doll.
Changing the number of
the iron balls
Changing the tension of
the string
Adjust the steps from the lowest one. Lower the
step little by little until the doll stops moving as
shown in the diagram.
Then, make one round of the adjuster to heighten
the step.
Make fine adjustments in the same way to the
middle and the upper steps.
Put the doll on the upper step and
check the touchdown point of the hands.
Then, raise the
legs lightly and
start the doll.
Stand the doll and
align its toes with
the edge of the step.
Push the upper body
lightly to set the
doll in motion.
Push
lightly.
the lower step
1
2
3
4
5
Leave about
10mm space.
If the doll makes five somersaults and
then stops, the assembly goes well.
The doll moves most smoothly when the heights of
steps are the lowest as far as the doll can move
normally. The way to adjust the heights of steps is
introduced as a high level technique in the following.
How to Make
Fine Adjustment
In case the doll makes
standing start.
Adjusting the heights of the steps
Setting the Doll in Motion
pedestal
Notice: Moving the doll
with two iron balls is
rather difficult. It is a
challenging objective.
Notice: The 10mm
space is tentative.
Adjust the distance
since each doll
moves differently.

18
Falling Down from the Step
Unsuccessful Case
Reason 1 : The doll's clothes are caught
in the body.
Solution 1 : When the doll bend back
and put the hands on the step, the back
flap may be caught in the body. In that
case, it has to be straightened. Adjust
the clothes with both adhesive tapes not
to be caught in.
Reason 2 : If the clothes are not caught in the body, the
intervals of the posts are not adequate to the doll.
Solution 2 : Adjust the intervals of the posts. Loosen
the screws at the bottom of the posts and move the
middle step about 2 to 3 mm and the upper step
about 4 to 5 mm to widen the intervals.
hand
step
fall!
Sometimes the hands jut out more than half and the doll falls
when it comes down the step and puts hands at the edge of the step.
The doll's clothes
could be caught in
this part.
screw
19
Going off to the side
A
B
C
Though the course should be A, the doll may go off the course because of the way to set
the doll in motion or the way to dress. When the doll always goes wrong, angle the steps
to correct its course.
When the doll follows the course B When the doll follows the course C
How to display the doll
Unsuccessful Case
The doll can keep a standing
posture by putting in the core
of the string.
If it doesn't go well
anyhow
the core of the
string
Solution : Turn the
step a little in a
counterclockwise
direction looking
from the top.
Put the
core in this
part.
See the 77of the Stringing on the separate sheet and adjust the
tension of the string once again. (Adjust from the back of the
hakama with tweezers.)
Solution : Turn
the step a little
in a clockwise
direction looking
from the top.