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Topic: Crank mechanism

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	Crank mechanism - Patent 5749262
		A crank mechanism as claimed in claim 1, wherein the axis of the piston is offset from the axis of the output shaft by a distance equal to substantially half o.backslash.the stroke of the associated piston.
		A crank mechanism as claimed in claim 14, wherein the axis of each piston is offset from the axis of the output shaft by a distance equal to substantially half the stroke of the associated piston.
		A crank mechanism as claimed in claim 21, wherein the three torque lobes associated with each bank of three cylinders are all fixed to the output shaft in such a manner that the lines joining the centre of the output shaft to the centres of said torque lobes are angled to one another by 120.degree..
	www.freepatentsonline.com /5749262.html (4503 words)

	Adjustable elliptical crank mechanism - Patent 5261294
		A crank mechanism is provided which has a first driven member constituted by a first shaft, and a second driven member constituted by a sleeve member-disposed around said first shaft.
		An additional object of our invention is to provide a crank mechanism which can be driven by a motor or other external energy source, such that a patient can passively have his or her limbs moved through a selected motion pattern.
		According to the dimensions and materials used to construct the crank mechanism, as well as the loads imposed thereon, these outermost plates 54 and 60 may not be necessary for practice of the invention.
	www.freepatentsonline.com /5261294.html (5347 words)

	Brake cable mounting structure for a drum brake - Patent 6325183
		The crank mechanism 300 is positioned adjacent to the supporting portion 201 of the anchor 200 between the two brake shoes 110, 120.
		The crank mechanism is disposed adjacent to a pair of adjacent facing ends of brake shoes moveably mounted on a back plate so as to actuate the brake shoes.
		No projection on the anchor seat projecting toward the crank mechanism side (i.e., widened portion of the guide pipe in the conventional art) is necessary; therefore, the range of the effective stroke of the brake cable is increased.
	www.freepatentsonline.com /6325183.html (3482 words)

	www.cyclingnews.com news and analysis
		Crank Brothers has stripped the design down to bare essentials: an axle, bearings, just enough metal to hold the bearings and a mechanism to engage and release the cleat.
		Crank Brothers' trick is that two of the bars are part of the pedal's body, while the other two are spring-loaded and able to pivot round the axle.
		Crank brothers claims the main advantages for the design are low weight, easy entry and mud-proofing.
	www.cyclingnews.com /tech/2001/review_crank_bros_egg.shtml (782 words)

	DTEACh - Basic Machines and their Components
		Thus, the mechanical advantage is related to the geometry of the lever as well.
		A slider-crank mechanism is a four-bar linkage with 3 revolute joints and one prismatic joint.
		For a cam mechanism to function properly, the follower must remain in contact with the cam surface throughout the cycle.
	www.engr.utexas.edu /dteach/Experience/mechanisms/brief_mechanisms.htm (3664 words)

	[No title] (Site not responding. Last check: )
		If the rachet on the latch mechanism is frozen, remove the latch by undoing the three screws holding the mechanism in place as well as the attachment to the lock cylinder and the screws holding the interior door handle and remove the entire mechanism.
		Move the crank mechanism so that it sets in the cutout provided for it making sure that the three PE bearings are still in their appropriate sliders.
		Finally, attach the four philips head screws to fix the crank mechanism to the door and attach the front window guide, which should still be attached to the window, to the inner door with the two 10 mm bolts.
	www.angelfire.com /sk3/jjgajewski/zdoor.htm (787 words)

	Kinetics of a Slider Crank
		Schematic of the slider-crank mechanism to be analyzed.
		The angle of the force on the pin at B relative to the orientation of the connecting rod (as a function of crank angle).
		The angle of the force on the pin at C relative to the orientation of the connecting rod (as a function of crank angle).
	www.esm.psu.edu /courses/emch12/intdyn/activities/kinetics_rigid/slider-crank2/default.html (1021 words)

	Chapter 5. Planar Linkages
		The mechanism, shown in Figure 5-1b, transforms the rotary motion of the motor into an oscillating motion of the windshield wiper.
		The slider-crank mechanism, which has a well-known application in engines, is a special case of the crank-rocker mechanism.
		For example, the mechanism of the pump device in Figure 5-15 is the same as that in Figure 5-14b.
	www-2.cs.cmu.edu /People/rapidproto/mechanisms/chpt5.html (1595 words)

	Garrett A. Morgan -- US Patent No. 1,475,024
		The raising and revolving movements of the arms are adapted to be accomplished by the turning of a crank, and suitable mechanism actuated by the crank is provided for automatically indexing the arms to the required position, and for permitting their proper functioning in accordance with the wishes of the traffic director.
		This crank shaft is supported in the standard and is provided with a crank arm 28 which may be rotated by the director.
		Accordingly, I have shown a dashpot for absorbing the shock incident to the fall of the arms and I have shown this dashpot as embodying a piston 45 which is carried by the shaft 24 and is movable within a cylinder 46, forming part of the support 11.
	www33.brinkster.com /iiiii/trfclt/morgan-patent.html (2100 words)

	Reference.com/Encyclopedia/Crank (mechanism)
		A crank is a bent portion of an axle, or shaft, or an arm keyed at right angles to the end of a shaft, by which motion is imparted to or received from it; also used to change circular into reciprocating motion, or reciprocating into circular motion.
		Familiar examples of a crank for manual use include the crank on a manual pencil sharpener and the crankset that drives a bicycle via the pedals.
		Cranks were formerly common on some machines in the early 20th century; for example almost all phonographs before the 1930s were powered by clockwork motors wound with cranks, and internal combustion engines of automobiles were usually started with cranks before electric starters came into general use.
	www.reference.com /browse/wiki/Crank_%28mechanism%29 (174 words)

	solution to assignment5 slider-crank mechanism
		Consider the slider-crank mechanism (Figure 1) consisting of two rigid links and a piston that are connected by frictionless revolute joints and constrained to move in the vertical plane.
		The piston, connected to bar AB at the center of mass B, slides on a frictionless horizontal plane.
		The crank’s angular position, theta_OA, angular velocity theta_dot_OA and angular acceleration thetha_double_dot_OA are plotted in Figures 3~5 respectively.
	www.me.cmu.edu /undergrad/adams/solution_computational_assignment5.htm (346 words)

	Umbrella with rotation mechanism patent invention (Site not responding. Last check: )
		The rotation mechanism is configured to apply a force to an outer surface of the upper pole portion.
		The rotation mechanism is located at least partially between the upper pole portion and lower pole portion and is configured to rotate the upper pole portion.
		This mechanism preferably comprises means, located below the transverse axis of the crank or substantially below the crank housing, that is rotatable by a user to cause corresponding rotation in the umbrella, relative to the ground.
	www.freshpatents.com /Umbrella-with-rotation-mechanism-dt20051208ptan20050268953.php (2074 words)

	Mechanism
		Mechanism includes not only rigid links connected by rotating joints, but also cams and gears where the motion is transmitted by sliding surfaces, flexible cords, belts and chains, and logical elements, such as ratchets, trips, detents, escapements and interlocking mechanisms.
		If we now connect the mechanism, so that the movement of the two cranks is simultaneously constrained by members 1 and 3, there will be one point with the same velocity in members 2 and 4, and it must lie at the intersection of the two lines 12,14 and 23,34.
		The familiar and important crank-and-slider mechanism is a special case of the four-bar linkage where the radius of one crank is infinite, which means that the joint 34 moves on a straight line, as shown in the figure.
	www.du.edu /~jcalvert/tech/machines/centro.htm (10750 words)

	Crank Mechanism
		A crank is a lever attached to a rotating shaft.
		Sometimes the crank is used to turn a shaft - for instance when it is used as a handle, and sometimes the crank is driven by the rotating shaft.
		In this case, the crank can be used to change the type of motion.
	www.cabaret.co.uk /education/crank.htm (87 words)

	Untitled Document
		Choose from wheel style mechanism (shown at left in photo) or crank mechanism (right in photo).
		To attach the mechanism to the top, the shaft and lower grinder unit must be apart from the bowl.
		Mechanisms are functional but intended for decorative use.
	www.rockler.com /plans/coffeemill.cfm (422 words)

	NISSAN \| Variable Compression Ratio Piston-Crank System
		Nissan has developed a new engine mechanism that enables both high power of turbo engine and low fuel consumption of non-turbo engine.
		By applying multi-link mechanism, significant improvement of engine vibration coupled with friction reduction (basic condition of engine mechanism) have been obtained.
		Piston motion in the conventional mechanism is essentially asymmetrical, with rapid motion occurring at top dead center.
	www.nissan-global.com /EN/TECHNOLOGY/INTRODUCTION/DETAILS/VCR/index.html (219 words)

	A Torsional Unit for Small
		The connections between the slider, bar, and crank mechanisms would be made by pin joints.
		With the Aluminum mount encompassing the crank, no additional supports are need for the shaft and torque cell as opposed to two supports in the previous internal bearing design, shown in Figure 7.
		The slider, bar and crank will be connected using pin joint with the slider tapped for assembly with the arm.
	www.mne.psu.edu /me415/fall05/Hershey1/DesignEval.htm (1323 words)

	YP Slider Crank
		YP Slider Crank simulates the motion of a piston activated by a slider crank mechanism.
		The crank is in uniform rotational motion (constant angular velocity), causing the piston to move with a variable acceleration.
		During the animation, the user can display a vector diagram showing how the velocity of the crank and the velocity of the connecting rod are combined together to give the velocity of the piston.
	web.ncf.ca /ch865/english/slidercrank.html (218 words)

	Excite - Search: Crank Mechanism
		crank is used to turn a shaft - for instance when it is used as a handle, and sometimes the...
		A rod is connected to a rotational crank, by moving the...
		Crank, a slang term for the recreational drugs methamphetamine or amphetamine...
	msxml.excite.com /info.xcite/search/web/Crank%2BMechanism/1/20/1/-/-/0/1/1/1/1/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/-/1/-/-/-/-/-/-/-/-/-/-/0/302349/right (279 words)

	Honda Worldwide \| History
		The control mechanism created through the joint effort, which turned the front and rear wheels in the same direction at high speeds but in opposing directions at low speeds, was initially conceived as a "speed-linked 4WS system"-a control mechanism directly dependent on the speed of the vehicle.
		However, it all became a reality with the development of a new crank mechanism, which was designed to turn the wheels in the same direction initially but in opposite directions after a certain point.
		With a single crank mechanism, the wheels could only be turned at certain instances, regardless of whether the front and/or rear wheels were turning in the same or opposite directions.
	world.honda.com /history/challenge/19874ws/text/04.html (666 words)

	SMP2
		Study of displacements in mechanism facilitated by angular and linear scales mounted on unit.
		Mechanism illustrates conversion of continuous rotation into continuous, non-uniform rotation by means of a four-bar linkage.
		Input crank drives arm on intermediate member (spider) engaging two output members, the average of the speeds of which is controlled.
	www.techno-isel.com /smpmodels/smp2.htm (455 words)

	Crank Spring
		SpringRad: The radius of the fixation of the spring on the crank
		SpringAngle: The angle of the fixation of the spring on the crank.
		The springs are rather long, and it might be necessary to limit the length or the radius of fixation on the crank.
	www.anybody.aau.dk /Examples/CrankSpring.htm (674 words)

	Controlling an engine with a multi link-type piston crank mechanism patent invention (Site not responding. Last check: )
		The multi-link piston crank mechanism controls movement of the piston such that an acceleration of the piston at top dead center is less than an acceleration of the piston at bottom dead center.
		[0010] An engine according to the present invention is provided with a multi-link type piston crank mechanism so configured as to provide a piston motion in which the acceleration of a piston in the vicinity of top dead center is lower than an acceleration of the piston in the vicinity of bottom dead center.
		The multi-link piston crank mechanism may control the piston such that an acceleration of the piston at top dead center is lowered when the compression ratio change device raises the top dead center.
	www.freshpatents.com /Controlling-an-engine-with-a-multi-link-type-piston-crank-mechanism-dt20051208ptan20050268870.php (1474 words)

	Crank mechanism
		A linear motion, back and forth, is transferred to a circular motion or vice versa.
		A rod is connected to a rotational crank, by moving the rod a circular motion is created.
		Alternatively, turning the rotational crank creates a linear motion.
	www.vam.ac.uk /vastatic/nmc/popups/how/modem/crank1.htm (41 words)

	Light Speed Engineering - Products - Direct Crank Sensor
		The crank sensor circuit board has two completely independent triggering systems if it is used for dual Plasma CDI applications.
		All screws holding the crank sensor circuit board to the mounting bracket must be secured with Loctite and the proper torque.
		The 0 degree mark on the circuit board should now align with the split line in the crankcase when the screws are fastened in the center of their positioning slot.
	www.lightspeedengineering.com /Products/CrankSensor.htm (1042 words)

	Computer Table - Adjustable Height Tables with Hand Crank Mechanism
		User convenience and ergonomic well-being are served by this table, because of the adjusting hand crank mechanism.
		Whether you use this table for a single person workstation or in a classroom or service setting where numerous people may use it in different shifts, the simple design understates its high quality construction.
		Manual turning of the hand crank can change the table height between 19-1/2"h to 29-1/2"h.
	www.ergoindemand.com /computer-table-adjustable-height.htm (428 words)

	SportDevices. SHOCK ABSORBER ANALYZER.
		This mechanism consists of a flywheel (crank), connecting rod, and piston similar to the piston-crank mechanism in an internal combustion engine.
		The disadvantage of using this mechanism is that it does not produce perfect sinusoidal motion in the piston, but having a longer connecting rod can compensate for this.
		The advantage to this mechanism is its cost effectiveness because there is less high tolerance machining.
	www.sportdevices.com /shockabsorber/index.htm (906 words)

	Crank Spring
		So the idea of adding springs to the crank mechanism appears at first sight not to be a very good one.
		These variations in speed are believed to be undesirable, so coaches are trying to teach young competitive bicycle riders to apply the torque as evenly as possible over a cycle.
		SpringY: The vertical coordinate of the fixation of the springs on the bicycle frame measured from the crank center.
	anybody.auc.dk /Examples/CrankSpring.htm (674 words)

	IFPS.org :: View topic - Slider Crank Mechanism - Any comments
		Option 2: Using a slider crank mechanism to rotate a disc by 360 degrees using a double acting hydraulic cylinder (similar to the automotive engine).
		Looking at the mechanism setup you may have a real problem when the cylinder thrust on the Crank Mechanism passes Top or Bottom Dead Center, espaecially at such slow speeds.
		Another problem with a Slider Crank mechanism is the fact that with a constant extension/retraction speed of the hydraulic cylinder the rotational speed would go from zero RPM at Top and Bottom Dead Center and constantly accelerate through half the extend stroke, then constantly decelerate through the second half of the extend stroke.
	www.ifps.org /phpBB2/viewtopic.php?t=383&highlight=&sid=8295155590646f646a2a6640b95704da (1307 words)

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