Machine element or mechanism – Control lever and linkage systems – Multiple controlling elements for single controlled element
Patent
1994-09-20
1996-11-12
Herrmann, Allan D.
Machine element or mechanism
Control lever and linkage systems
Multiple controlling elements for single controlled element
74 8915, 744248NA, B62K 2304, F16H 2522
Patent
active
055729070
DESCRIPTION:
BRIEF SUMMARY
The invention relates to an actuator which can be fitted inside a vehicle handle-bar to control a vehicle function. Functions that can be operated by means of a device according to the invention may be, among other things, changing speed, braking, activating clutch and gas.
BACKGROUND OF THE INVENTION
On the basis of novelty research previously known are, among other things, two patent publications, where an actuator mechanism is built in a twist grip. In GB publication 1235925, a complicated construction is presented, where a "nut" on the handle-bar or at its end moves a "screw" to which a wire is fastened. Twisting of a beam, which works as a screw, is prevented either by a mobile slot (FIG. 3) made in the handle-bar end or a separate control sleeve, (FIG. 1) firmly fixed to the handle-bar. The construction includes numerous complicated parts. Inside the handle-bar tube there are parts which move only lengthwise. In DE publication 847 863 a construction is presented, where two wires are operated by means of a mechanism inside a a grip installed fully external on the handle-bar end. Grooves on the grip inner surface move the parts, which are mobile in the grooves, and to which the wires are fastened. Inside the the handle-bar tube there are parts moving only lengthwise.
SUMMARY OF THE INVENTION
The construction according to my invention differs from now available designs in that the motive mechanism and the first section of the wires are hidden in the handle-bar and the twisting motion is taken up to the inside of the handle-bar tube. The invention is characterized in what is presented in the enclosed patent claims.
The twisting motion of the grip is converted into linear motion with a simple and a new kind of a screw
ut combination. This operating principle enables conventional wire utilization.
Utilization of a motive screw in order to produce a linear motion enables construction of functionally ideal control devices, since by changing the screw pitch and handedness, the best sense of steering and ergonomics for all individual use can be provided.
The location of the mechanism inside the tube brings with it numerous advantages: instance at falling gear levers in the handle-bar are completely hidden out of view to get entangled in obstacles. The construction according to my design differs clearly from the above referred patent publications in that the actual mechanism contains only two cylindrical parts, a screw and a nut, which are, by means of balls, fitted centrally inside the tube. The construction is decisively more simple and the parts included are also very simple, thanks to which this construction is easy and cheap to manufacture and therefore it will become a mass product of light weight.
BRIEF DESCRIPTION OF DRAWINGS
In the following the invention is presented in detail with reference to the enclosed drawing, where
FIG. 1 is a diagrammatic cross-section view of a first embodiment of an actuator of the invention.
FIG. 2 is a diagrammatic cross-section view of a second embodiment of an actuator of the invention.
FIG. 3 is a diagrammatic cross-section view of a third embodiment of an actuator of the invention.
FIG. 4 is a diagrammatic view of a portion of an actuator of the invention showing a ball groove screw.
DESCRIPTION OF PREFERRED EMBODIMENTS
FIG. 1 shows an embodiment with wire transmission. Around the handle-bar 1 there is a cylindrical grip 2 that is twisted on the handle-bar. Grip 2 is firmly locked at its outer end to screw element 3, the spiral section 8 of which is located centrally inside the handle-bar. Around the screw element 3 there is a sleevelike nut element 4 with ball holes 4a, which in the illustrated embodiment is in contact with the spiral grooves 8 of screw element 3 by means of balls 6. These balls are in the holes 4a of the nut element sleeve and take support from the inner surface of the handle-bar tube 1. In the sleeve of nut element 4 there are grooves 5 and pins 9 therein prevent nut element 4 from twisting. At twisting part 2, the part 3 is also twiste
REFERENCES:
patent: 2788676 (1957-04-01), Spexarth
patent: 3213702 (1965-10-01), Deehan et al.
patent: 3404581 (1968-10-01), Kraus
LandOfFree
Actuator assembly in handle-bar does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Actuator assembly in handle-bar, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Actuator assembly in handle-bar will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-555111