Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
236 words
In a push rod type motion-transmitting mechanism for a dual hydraulic brake system having a main force applying rod operatively connected with a brake force applying means, a floating intermediate motion-transmitting member kept in pressure engagement with one end of said main rod and with a pair of auxiliary push rods positioned parallel to each other and operatively connected with respective hydraulic brake pressure control pistons mounted slidably in parallel cylinders formed in a conventional brakE pressure control unit, the improvement comprising said intermediate member having two rod end receiving surfaces formed thereon, each of the rod end-receiving surfaces formed on said intermediate member kept in pressure contact with the motion-receiving ends of said auxiliary push rods, said surfaces being defined by a curve having a gradually increasing radius of curvature in the outward direction from an imaginary contact point with an imaginary base circle, a radius of said base circle being equal to the perpendicular distance between the longitudinal center-line of one of said auxiliary push rods and the longitudinal center-line of said main rod, the center of said circle being located at the point of contact of the main rod with the intermediate member, the origin of said gradually increasing radius of curvature lying on the longitudinal axis of said auxiliary push rods and being measured along said longitudinal axis to the point of contact of said auxiliary push rod and said intermediate member.
Claim 2
Dependent Claim
236 words
In a push rod type motion-transmitting mechanism for a dual hydraulic brake system having a main force applying rod operatively connected with a brake force applying means, a floating intermediate motion-transmitting member kept in pressure engagement with one end of said main rod and with a pair of auxiliary push rods positioned parallel to each other and operatively connected with respective hydraulic brake pressure control pistons mounted slidably in parallel cylinders formed in a conventional brakE pressure control unit, the improvement comprising said intermediate member having two rod end receiving surfaces formed thereon, each of the rod end-receiving surfaces formed on said intermediate member kept in pressure contact with the motion-receiving ends of said auxiliary push rods, said surfaces being defined by a curve having a gradually increasing radius of curvature in the outward direction from an imaginary contact point with an imaginary base circle, a radius of said base circle being equal to the perpendicular distance between the longitudinal center-line of one of said auxiliary push rods and the longitudinal center-line of said main rod, the center of said circle being located at the point of contact of the main rod with the intermediate member, the origin of said gradually increasing radius of curvature lying on the longitudinal axis of said auxiliary push rods and being measured along said longitudinal axis to the point of contact of said auxiliary push rod and said intermediate member.
Claim 3
Dependent Claim
21 words
The motion-transmitting mechanism as claimed in claim 1, wherein said gradually increasing radius of curvature is defined by an involute curve.
Claim 4
Dependent Claim
140 words
The motion-transmitting mechanism as claimed in claim 1, wherein said gradually increasing radius of curvature is defined by a curve determined by the formula: X a + or - b tan theta /2, where X the radius of curvature and constitutes the distance on the longitudinal axis of said auxiliary rods between the contact point between an auxiliary rod and the rod end-receiving surface of said intermediate member and a point on said longitudinal axis of said auxiliary rod, a the longitudinal distance between the contact point between said main rod and said intermediate member and the contact point between an auxiliary rod and said intermediate member; b the center-to-center distance between the longitudinal axis of said main rod and an auxiliary rod; and theta the angle of inclination of said intermediate member having a maximum angular value of 50*.
Claim 5
Dependent Claim
45 words
The motion-transmitting mechanism as claimed in claim 1, wherein each of said rod end-receiving surfaces of said intermediate member includes a configuration to constantly urge said auxiliary rods to move inwardly, said intermediate member further including an arc-shaped portion for counter-acting against the urging force.
Claim 6
Dependent Claim
40 words
The motion-transmitting mechanism as claimed in claim 1, wherein the contacting point between said main rod and said intermediate member is positioned nearer said brake force applying pedal than the contact points between said auxiliary rods and said intermediate member.
Claim 7
Dependent Claim
40 words
The motion-transmitting mechanism as claimed in claim 1, wherein the contact point between said main rod and said intermediate member is positioned nearer said brake pressure control unit than the contact points between said auxiliary rods and said intermediate member.