thang010146
Torggler cabinet door 1
updated
The burner-nozzle (brass) are fixed to the yellow disk.
Two pairs of bearings (blue) and a crosstree (pink) which functions as gimbal to connect the burner-nozzel to the base.
Two electromechanical actuators (beige) that are responsible for generating movement (rotation of the yellow disk in two vertical planes perpendicular to each other). They are connected to other parts by spherical joints.
The gas flow creates a torque around the center of mass of the rocket, thus causing the rocket to change direction of motion.
The final scene of the video shows the direction of motion (blue arrow) of the blue rocket relative to the direction of gas flow (red arrow).
This video is made based on an article:
https://abcm.org.br/app/webroot/anais/cobem/2013/PDF/1182.pdf
Move the seat back frame to the desired position, release the green lever, the red spring lowers the green lever to lock the seat back frame by pressing the pink tooth bar towards the yellow seat back frame gear.
Any moment applied to the seat back frame cannot cause the pink tooth bar to rotate because the gear force is directed toward the axis of rotation of the pink tooth bar.
The blue spiral spring (its inner end is fixed) tends to rotate the seat back frame counterclockwise.
The green pin of the lever and the circular slot of the seat base give the lever its rigidity.
Green and orange arrows represent human actions to adjust the chair back.
This video is made based on video
youtu.be/SleXUhHLkH8
The green and pink crank and yellow connecting rod form a spherical 4-bar linkage. The angle between the fixed revolution joints of the linkage is 100 degrees.
The yellow wing is fixed to the yellow connecting rod.
This video focuses on explaining the mechanism of folding the wings, so the airplane was built symbolically.
This video is made based on video
youtu.be/PF7AwbuNB3Q
The yellow frame, blue steps and pink bars form a parallelogram mechanism.
There are V-shaped grooves on the back of the top step to lock the ladder in the deployed state.
This video is made based on video
youtu.be/6aKsI14fBdQ
The pink frame, yellow and blue bars form a parallelogram mechanism.
The red pins fixed to the jade frame slide in slots of the blue bars.
This video is made based on video
youtu.be/XOQM3X8Gi9Q
The orange wing is connected to the UAV fuselage by a revolution joint.
The green slider, violet connecting rod and orange wing create a spatial slider-crank mechanism.
The connecting rod has two spherical joints (youtu.be/KfGUpfkucNM).
The UAV flies vertically when wings are in folded position and flies horizontally when the wings are in the open position.
This video is made based on video
youtu.be/kA1ENhxLqTo
youtu.be/-QAy2u33BEc
and the patent US 10,252,798 B2
STEP files of this video:
mediafire.com/file/cfp1c7qr8yhajhr/MechanismUAVWingPositionSTEP.zip/file
Inventor files of this video:
mediafire.com/file/bucrfn4ilb5mpcp/MechanismUAVWingPositionInv.zip/file
youtu.be/SPQk_ymBOTs
Input: blue sliders (linear cams) reciprocating synchronically.
Output: yellow shaft rotating continuously.
This mechanism has not been tested in practice.
The red spring returns both to their original position.
Button diameter: 10 mm
Rod diameter: 7.5 mm
When the button moves down 5 mm, the pink rod moves 3 mm to the right.
The pink hammer acts as a pendulum and strikes the red vibrating wires of different lengths to create musical sounds.
This video is made based on the patent:
patents.google.com/patent/US3921331A/en
Turn the orange screw to move the pink sliders, thus to control their linear positions.
The distances between the pink sliders are kept always equal to each other thanks to the blue bars that connect the pink sliders. The slider position accuracy is affected by the gaps in the blue bar revolution joints.
This video aims to overcome the disadvantages of the mechanism in the video
youtu.be/OKX6uY5r68E
in which the pink slider cannot move properly because the force acting on the slider is not symmetrical.
The orange disc and the blue face cams are fixed on the blue vertical shaft. The red spring pin positions the vertical shaft.
This video was made at the request of a YouTube viewer.
The blue arm belongs to a type of slider-crank mechanism called the oscillating cylinder mechanism
youtu.be/AykTX6q44aA
Here the green acts as an oscillating cylinder. The blue arm plays the role of the piston.
The direction of the effector is controlled by the beige grounded servo motor via two parallelogram mechanisms (blue and jade) and a spur gear drive.
Unstable positions of the parallelogram mechanisms are prevented when programming the motors.
This video was made based on:
youtu.be/pQ_CdrepHeo
The direction of the effector is kept unchanged by two parallelogram mechanisms (blue and jade).
Unstable positions of the parallelogram mechanisms are prevented when programming the motors.
This video was made based on:
youtu.be/pQ_CdrepHeo
STEP files of this video:
mediafire.com/file/rg08q3e6xn00spj/RobotArm1aSTEP.zip/file
Inventor files of this video:
mediafire.com/file/bmno5390hi8x97f/RobotArm1aInv.zip/file
The green seat and blue lid are closed by their own weight.
During closing, the black springs and helical joints provide increasing torque to prevent the seat and lid from falling rapidly.
Orange and red face cams have prismatic joints with the beige axle.
The pink nut is used to adjust the spring force.
This video is inspired by patent EP 1 486 154 A1
Output: pink pulley of D2 diameter. D1 = 2*D2
So the output speed is twice the input speed.
The input and output shafts are perpendicular to each other.
The orange idler pulleys guide the black round belt between the input and output pulleys and prevent the belt from leaving the pulleys.
Move the blue pulley bracket up to tension the belt. Use the green bolt to clamp the bracket after adjustment.
- The torque generated by the spring reaches its maximum value when the downward gravitational force of the lid causes maximum torque (in closed position).
- The torque generated by the spring reaches its minimum value when the downward gravitational force of the lid causes minimum torque (in vertical position).
- The lid is lifted and lowered effortlessly and hold securely in any position if the spring stiffness is properly calculated.
STEP files of this video:
mediafire.com/file/7rmazf9507quh8q/CounterbalanceHinge1STEP.zip/file
Inventor files of this video:
mediafire.com/file/qbuy7ad5y7jm644/CounterbalanceHinge1Inv.zip/file
Yellow curved sliders close and open along a curved runway.
Brass connecting rods connect the crank and the sliders by spherical joints having unsplit outer part shown in
youtu.be/KfGUpfkucNM
Output: Orange bevel gear shaft. It rotates around its own axis and periodically oscillates 90 degrees around the pink input axis.
The oscillation occurs in every four revolutions of the input thanks to the timing belt drive and the cam drive of the jade cam and yellow follower.
STEP files of this video:
mediafire.com/file/9dq0peyy8q3u7i5/YawAndRollRotationSTEP.zip/file
Inventor files of this video:
mediafire.com/file/fgsm4gn14eohue4/YawAndRollRotationInv.zip/file
Output: beige slider with brown rack.
The gear train of several gear blocks (pink and yellow) helps to get a large displacement of the output. Increase the number of gear blocks for larger displacements.
STEP files of this video:
mediafire.com/file/w45n1g4e8jky2x9/GearTrain%2526RackSTEP.zip/file
Inventor files of this video:
mediafire.com/file/axem8jk8qm9pt2j/GearTrain%2526RackInv.zip/file
Calculation:
Number of teeth of the pink gear: Zp
Number of teeth of the yellow gear: Zy
Complete number of teeth of the blue gear: Zb
D: diameter of the yellow and blue gear
i: transmission ratio of the gear train
i = (Zy/Zp)^n
n: number of the gear blocks
L: linear travel of the beige slider
L = Pi*D*(90/360)*i
In the video:
D = 40 mm
Zy = Zb = 20
Zp = 10
n = 3
i = (20/10)^3 = 8
L = 3.142*40*(90/360)*8 = 251.36 mm
Increase the number of the gear blocks (n) to get larger L
For example, L = 1000 mm if n = 5
Output: pink shaft of four pins.
The output performs intermittent 90-degree rotation.
2 revolutions of the input correspond 1 revolution of the output.
This video is made based on
youtu.be/IRZ0Xu4SDqg
Output: shaft of three pins.
The output performs intermittent 120-degree rotation.
3 revolutions of the input correspond 1 revolution of the output.
This video is made based on
youtu.be/IRZ0Xu4SDqg
Output: red clamping jaw. It is completely withdrawn from the orange workpiece space when not clamped.
Additionally, it can enter the workpiece cavity for clamping.
This video is made based on the frog clamp shown at
youtu.be/Y-1rFofQZ_k
STEP files of this video:
mediafire.com/file/m2519cm7xbbnifm/MachineToolFixture60bSTEP.zip/file
Inventor files of this video:
mediafire.com/file/0q72063i4nqcsxr/MachineToolFixture60bInv.zip/file
Output: yellow and orange shafts. The number of teeth of the two gears is 16 although their diameters are different. They rotate at the same speed and in the same direction.
Two white bearings can be rotated thanks to the pink worms. So the bearing position of the output shaft is adjustable.
See a simpler case when the output shafts rotate at the same speed and in opposite directions:
youtu.be/vOu7oATlsPE
Inventor files of this video:
mediafire.com/file/tdnbvxw89eajlqp/Bevelgears8bInv.zip/file
Two grey bearings are stationary.
Output: yellow and orange shafts. The number of teeth of the two gears is 16. They rotate at the same speed and in opposite direction.
Two white bearings can be rotated thanks to the pink worms. So the bearing position of the output shaft is adjustable.
Inventor files of this video:
mediafire.com/file/66amjf302kv2cec/Bevelgears8aInv.zip/file
Output: green clamping jaw. It is completely withdrawn from the gray workpiece space when not clamped.
It is an application of the slider crank mechanism (yellow crank, pink slider and green conrod).
See the application of this type of spring (minute 0.40):
youtu.be/j3SiVPXs7pI
Turn the yellow screw to push the pink wedge down and make the green jaw move outward to clamp the two orange workpieces at the same time.
The blue slider has a threaded hole for the yellow screw.
The blue slider can move up/down and along the T-shaped groove of the base.
This video was made based on the video
youtu.be/KgQQdbngyV4
The pink wedge moves up and down with the blue screw thanks to a small pin (brown) that is fixed on the pink wedge and engages with the blue screw.
The jade slider has a threaded hole for the blue screw.
The blue slider can move up/down and along the T-shaped groove of the base.
This video was made based on the video
youtu.be/Dw27hDPZ-6E
I saw this ladder in front of a house in Hanoi on February 16, 2024 and made this video.
The blue tube pushes the red ball out while the pink and brown sticks open the liquid path between the two tubes through the holes of the jade spring bushings.
Release the blue sliding bush so that the red balls lock the blue tube.
To disconnect the coupler, push the blue bush back, withdraw the blue tube then release the blue bush to keep the red balls in their holes.
Two black O-rings pressed by two blue springs and black gasket prevent fluid from leaking.
STEP files of this video:
mediafire.com/file/leo8e66oh4yg7hz/HoseQuickCouplerSTEP.zip/file
Inventor files of this video:
mediafire.com/file/i181qdb3ydr8kos/HoseQuickCouplerInv.zip/file
The magenta arrow indicates the direction of the boat's movement.
Input: green shaft.
The green worm is fixed to the green shaft.
Yellow worm has a prismatic joint with the green shaft.
Two blue double cranksets receive motion from the green shaft via worm gear drives and rotate in the same direction.
The pink foil has a revolution joint with the violet slider that moves along a vertical runway.
Two yellow connecting rods connect the blue cranks to the foil.
The angular offset between the blue double cranks determines the angle of attack of the foil.
The angle of attack can be adjusted by using the brown screw to move the yellow worm axially as shown in the last scenes of the video.
Reversing the input rotation causes the boat to move backward.
Inventor files of this video:
mediafire.com/file/qmtun46uiw72mxi/FlappingFoilPropulsion3Inv.zip/file
The magenta arrow indicates the direction of the boat's movement.
The blue arrow represents the force exerted by water on the pink foil.
The foil moves up and down thanks to an eccentric slider crank mechanism consisting of the input green crankshaft and yellow conrods.
Here the slider is replaced with the red roller that rolls along the runway of four rods.
Such an arrangement allows the foil to rotate a limited angle thereby creating the angle of attack of the foil. The rectangular protrusions at the lower ends of the conrods determine the value of the attack angle.
Reversing the input rotation does not cause the boat to move backward. So use the rudder to get that.
Inventor files of this video:
mediafire.com/file/6zbls2fhvkmnaks/FlappingFoilPropulsion2Inv.zip/file
This arrangement ensures:
- The four wheels always contact the uneven ground.
- The car chassis (in yellow) has a definite position, although it is suspended on two coaxial revolution joints.
- When rocker 1 is immobile, the oscillating angle of the chassis is a half of the rocker 2 oscillating angle (first scenes of the video).
The connecting rods use sphere joints having unsplit outer part shown in
http://youtu.be/KfGUpfkucNM
See a prototype of this car:
youtu.be/hsf21jS3M4Y
youtu.be/xPVcL0fMBCk
Input: blue crank shaft.
1 revolution of the wheel corresponds to 4 revolutions of the input crankshaft.
1 revolution of the wheel corresponds to approximately 8*L linear displacement of the blue crankshaft. L is length of the brown plate.
The wheel can roll when the crankshaft is pushed horizontally (red arrow in the video’s last scene).
This wheel helps reduce pressure on the ground.
Thanks to Arglin Kampling for providing me with the wheel dimensions.
See the wheel prototype:
youtu.be/Geu_kDHcrLM
Place the round base into the floor hole, turn the red screw to secure the base to the floor.
Thanks to the scissor linkages, when turning the red screw, the pink bars come out and touch wall of the hole. Friction will keep the base firmly on the floor.
Four threaded holes on the base surface are used to fix other devices.
Thanks to the oblique surfaces, the blue upper piece and the yellow lower piece are pushed toward wall of the hole in opposite directions. Friction will keep the base firmly on the floor.
Four threaded holes on the base surface are used to fix other devices.
This design is found on bicycle handlebar stems
youtu.be/pe3wTSXQa2c
Push the cap on the pink pin to lock.
The black elastic loop tends to retract the yellow hooks.
This video aims to propose a possible mechanism that has the feature shown in video
youtu.be/9tSaXV5lZFQ
at 1:31
The blue lever oscillates thanks to the green motor and the four-bar mechanism of the red crank and purple connecting rod.
The pink foil has two axles. One rotates in the blue bar hole. The other moves in the circular slot of the blue bar.
The blue arrow represents the force exerted by water on the pink foil.
Such an arrangement allows the foil to rotate a limited angle thereby creating the angle of attack of the foil. The length of the circular slot determines the value of the attack angle.
So when the blue lever oscillates, the water pushes the boat forward.
Reversing the motor rotation does not cause the boat to move backward.
Use the yellow handle to steer the boat. The last shot of the video shows the right turn. However, that only works when the motor rotates.
This video was made based on
youtu.be/Mb0uk9d9fsU
The magenta arrow indicates the direction of the boat's movement.
The foil moves up down thanks to a slider crank mechanism consisting of the input blue crank shaft and yellow conrods.
The crank shaft also carries a second slider crank mechanism consisting of green cranks and a green conrod. The second slider crank mechanism controls the angle of attack of the foil. The angular offset between the blue and green cranks determines the angle of attack of the foil.
Reverse input rotation to move backward.
This video is made based on the video
youtu.be/lI9wk3d8I_Q
Inventor files of this video:
mediafire.com/file/olm6ghgpffo523y/FlappingFoilPropulsion1Inv.zip/file
This arrangement ensures:
- The four wheels always contact the uneven ground.
- The car chassis (in yellow) has a definite position, although it is suspended on two coaxial revolution joints.
- When rocker 1 is immobile, the oscillating angle of the chassis is a half of the rocker 2 oscillating angle (first scenes of the video).
The connecting rods use sphere joints having unsplit outer part shown in
http://youtu.be/KfGUpfkucNM
See a prototype of this car:
youtu.be/tzSqEQOgS4M
The blue gear makes the yellow spindle rotate continuously.
The front cam groove causes the yellow shaft to move in/out.
The rear cam groove controls the in/out movement of the jade circular tooth shaft. The latter helps the pink jaws to grip the candy paper to twist thanks to gear rack drives. The yellow shaft rotates four times faster than the blue shaft.
There is a similar device (not shown) on the other side of the candy to twist the other end of the candy.
This video is made based on the following video:
youtu.be/p2oDyiTDTv4
STEP files of this video:
mediafire.com/file/10wtczzppvt07gj/GripTwist3STEP.zip/file
Inventor files of this video:
mediafire.com/file/auk0punaywu494g/GripTwist3Inv.zip/file
It occurs thanks to the ratchet mehanism (red pawl, pink ratchet wheel) and helical joint (brown spring pin, yellow helical groove shaft). The green plate spring maintains the contact between the red pawl and the ratchet wheel. The spring force must be small. Otherwise, the ratchet wheel may rotate backwards. Increase the black spring force of the brown pin so that the pink wheel does not rotate in the opposite direction.
Pull the brown pin to move the knife quickly to the desired position.
Adjust the blue screw for different widths of noodles.
It's the solution to get the same functionality of the tool shown in the video (minutes 0.00 – 0.05):
youtu.be/rrnbKojGLdc
STEP files of this video:
mediafire.com/file/tc5wphvycak4slj/NoodleCuttingToolSTEP.zip/file
Inventor files of this video:
mediafire.com/file/ony9fen2j0jxe51/NoodleCuttingToolInv.zip/file
The yellow table frame is suspended by a red center string. Four blue strings maintain the balance of the table.
The structure can support a violet weight placed off-center on the table top.
This video was made based on
youtu.be/1BbGW5mL7QQ
Turn the green screw counterclockwise to extend the green wings.
Turn the blue screw counterclockwise to extend the blue wing.
The wings are the connecting rods for the yellow and orange rockers of four-bar linkages.
The pink or red hub has a revolution joint with the green or blue screw, so they move up down with the screws. The violet bars connect the hubs and the orange rockers. Therefore, the up down movements of the hubs cause the wings and the yellow shell to retract or extend.
The force applied to the wings cannot cause them to move thanks to the self-locking feature of the screw joints.
This animation was made at the request of an engineer from Czechia.
The optical illusion makes it appear that the three rims (painted in plain colors) are rolling on each other. They are actually welded together so there is no rolling happening here (see the last video scene where the rim is painted in a patterned color).
This video was made based on
youtu.be/3R-gzln5ufE
Optical illusions are used in this kinetic art.
The ball, placed in a rotating spiral, gives the impression that it rises or falls depending on the direction of rotation of the spiral.
This video was made based on
youtu.be/s2mcYErV9D4
Red button is fixed to the leaf spring that maintains the contact between the button and the cam.
The cam profile ensures that the red button oscillates up/down with increasing stroke. In this video, the stroke varies from 0.1 to 3.0 mm in 0.1 mm increments per oscillation.
This animation was made at the request of a plastic surgeon from Canada.
STEP files of this video:
mediafire.com/file/pctefajkl215kwr/OscillatingPinVariousStrokesSTEP.zip/file
Inventor files of this video:
mediafire.com/file/vsea8l80l24rc6n/OscillatingPinVariousStrokesInv.zip/file
Five yellow and ten beige bevel gears rotate at the same speed.
Video is made based on:
tiktok.com/@williamdarrellartist/video/7208472809176042757
STEP files of this video:
mediafire.com/file/y4zngpr6u6pog2c/KineticArt16bevelGearSTEP.zip/file
Inventor files of this video:
mediafire.com/file/psadtmq8diqowwv/KineticArt16bevelGearInv.zip/file
Flip the back to change the chair direction.
It is mainly used for vehicle seats.
The red bolts and nuts are also used as stoppers.
This design ensures the back always tends to reach a vertical position under the effect of gravity (last scene of video).
This mechanism is numbered 1601 in the book “1800 Mechanical Movements, Devices and Appliances”, Gardner D. Hiscox, 1921.