Apparatus for recording operational conditions of a motor car

Claim 2

Apparatus for recording operational conditions of a motorcar, comprising a comparison device including first rotary input means comprising a motor rotating in only one direction and at a constant speed, secondary rotary input means rotating at a varying speed depending on the condition of the motorcar, control means including a movable member movable between first and second control positions, and transmission means connecting said first and said second rotary input means with said control means for placing said control member in said first and second control positions when said second rotary input means operates for selected time periods above and below a predetermined speed, respectively; and recording means and a recording surface movable relative to each other, said recording means being connected with said control member and placed in first and second recording positions by said control member in said first and second control positions, respectively, for automatically recording on said recording surface first and second graphs representing first and second time periods during which said motorcar operates in different operational conditions, respectively.

Claim 3

Apparatus as claimed in claim 1 comprising means for oscillating said recording means at least in said second recording position so that said second graph is a zig-zag line.

Claim 4

Apparatus as claimed in claim 1, wherein said second rotary input means includes measuring means for at least the distance of travel of the motor car.

Claim 5

Apparatus as claimed in claim 1 wherein said control means further includes cam means operated by said control member between said first and second control positions, and a cam follower on said recording means cooperating with said cam means for moving said recording means between said first and second recording positions; and wherein said recording means is pivotally mounted for angular movement between said first and second recording positions.

Claim 6

Apparatus as claimed in claim 1 wherein said transmission means includes threaded means.

Claim 7

Apparatus as claimed in claim 1 comprising an eccentric member driven by said motor, a fork-shaped member embracing said eccentric member, and resilient means connecting said fork-shaped member with said recording means so that said recording means is oscillated to form a zig-zag recording on said surface.

Claim 8

Apparatus for recording operational conditions of a motorcar, comprIsing a comparison device including first rotary input means, second rotary input means rotating at a varying speed depending on the condition of the motorcar, control means movable between first and second control positions, and transmission means connecting said first and said second rotary input means with said control means so that said control means is placed in said first and second control positions when said second rotary input means operates for selected time periods above and below a predetermined speed, respectively, said control means including a control member operated by said transmission means between two end positions, cam means operated by said control member between said first and second positions, and a cam follower, said cam means including a stepped cam slot in which said follower is located; recording means and a recording surface, said cam follower being mounted on said recording means and cooperating with said cam means for moving said recording means between first and second recording positions when said control means is in said first and second control positions, respectively, for automatically recording on said recording surface first and second graphs respectively representing first and second time periods during which said motorcar operates in different operational conditions, said recording means being pivotally mounted for angular movement between said first and second recording positions; means for oscillating said recording means at least in said second recording position so that said second graph is a zig-zag line, said stepped cam slot having first and second slot portions for holding said recording means in said first and second recording positions; and manual means for moving said cam means to other positions in which said cam follower is located in other slot portions of said cam slot for making other zig-zag recordings, said control member moving in said second control position said cam means to a position in which said cam follower moves out of said other slot portions and into said second slot portion.

Claim 9

Apparatus for recording operational conditions of a motorcar, comprIsing a comparison device including first rotary input means, second rotary input means rotating at a varying speed depending on the condition of the motorcar, control means movable between first and second control positions, and transmission means connecting said first and said second rotary input means with said control means so that said control means is placed in said first and second control positions when said second rotary input means operates for selected time periods above and below a predetermined speed, respectively, said control means including a control member operated by said transmission means between two end positions, cam means operated by said control member between said first and second positions, and a cam follower, said cam means including a stepped cam slot in which said follower is located; recording means and a recording surface, said cam follower being mounted on said recording means and cooperating with said cam means for moving said recording means between first and second recording positions when said control means is in said first and second control positions, respectively, for automatically recording on said recording surface first and second graphs respectively representing first and second time periods during which said motorcar operates in different operational conditions, said recording means being pivotally mounted for angular movement between said first and second recording positions; means for oscillating said recording means at least in said second recording position so that said second graph is a zig-zag line, said stepped cam slot having first and second slot portions for holding said recording means in said first and second recording positions; and manual means for moving said cam means to other positions in which said cam follower is located in other slot portions of said cam slot for making other zig-zag recordings, said control member moving in said second control position said cam means to a position in which said cam follower moves out of said other slot portions and into said second slot portion.

Claim 10

Apparatus as claimed in claim 7 wherein said second slot portion has a width corresponding to the transverse displacement of said cam follower during oscillation.

Claim 11

Apparatus as claimed in claim 7 comprising means mounting said cam means for angular movement about an axis between said other positions, and for axial movement; wherein said cam slot includes two axially spaced slot parts; wherein said cam follower has two axially spaced follower portions respectively cooperating with said slot parts when said cam means is axially shifted by said control member, one of said slot parts having said first and said other slot portions, and the other slot part having said second slot portion.

Claim 12

Apparatus as claimed in claim 9 wherein said cam means includes a plate having said stepped cam slot; wherein said control means includes a shaft secured to said cam plate, and being mounted for axial movement with said cam plate, and a coupling secured to said shaft and being coupled with said control member for axial movement so that axial displacement of said control member by said transmission effects axial shifting of said cam means between positions in which said cam follower cooperates with different slot parts.

Claim 13

Apparatus as claimed in claim 9 wherein said first rotary input means includes an electric motor, and a switch in the electric circuit of said electric motor; and wherein said switch is operated when said cam means is moved about said axis and along said axis.

Claim 14

Apparatus for recording operational conditions of a motorcar, comprising a comparison device including first rotary input means, second rotary input means rotating at a varying speed depending on the condition of the motorcar, control means movable between first and second control positions and including a control member driven from said first input means, and transmission means connecting said first and second rotary input means with said control means so that The latter is placed in said first and second control positions when said second rotary input means operates for selected time periods above and below a predetermined speed, respectively, said transmission means including a bore with an inner thread and a control shaft, driven from said second rotary input means, located in said bore and having a projecting stud meshing with said inner thread so that said control member moves between two control positions in which said stud is located outside of said bore on opposite sides of said control member; spring means biasing the control member against movement to said two control positions and into abutment with said stud; and recording means and a recording surface movable relative to each other, said recording means being connnected with said control means and placed in first and second recording positions when said control means is in said first and second control positions, respectively, for automatically recording on said recording surface first and second graphs representing first and second time periods during which said motorcar operates in different operational conditions, respectively.

Claim 15

Apparatus for recording operational conditions of a motorcar, comprising a comparison device including first rotary input means, second rotary input means rotating at a varying speed depending on the condition of the motorcar, control means movable between first and second control positions and including a control member driven from said first input means, and transmission means connecting said first and second rotary input means with said control means so that The latter is placed in said first and second control positions when said second rotary input means operates for selected time periods above and below a predetermined speed, respectively, said transmission means including a bore with an inner thread and a control shaft, driven from said second rotary input means, located in said bore and having a projecting stud meshing with said inner thread so that said control member moves between two control positions in which said stud is located outside of said bore on opposite sides of said control member; spring means biasing the control member against movement to said two control positions and into abutment with said stud; and recording means and a recording surface movable relative to each other, said recording means being connnected with said control means and placed in first and second recording positions when said control means is in said first and second control positions, respectively, for automatically recording on said recording surface first and second graphs representing first and second time periods during which said motorcar operates in different operational conditions, respectively.

Claim 16

Apparatus as claimed in claim 12 wherein said inner thread is a flat double thread.

Claim 17

Apparatus as claimed in claim 12 wherein said control member is a control gear mounted on said control shaft for axial movement; wherein said first rotary input means includes a constant speed electromotor and a gear meshing with said control gear; wherein said second rotary input means includes measuring means for at least the distance of travel of the motor car, and another rotary member connected with said control shaft for rotation.

Claim 18

Apparatus as claimed in claim 14 wherein said control means include a cam having first and second control positions, and a fork-shaped coupling means embracing said control gear and being connected with said cam for movement so that said recording means is moved between said first and second recording positions when said control gear is moved in axial direction by said transmission means.

Claim 19

Apparatus for recording operational conditions of a motorcar, comprising a comparison device including first rotary input means comprising an electric motor, second rotary input means rotating at varying speeds depending on the condition of the motorcar, control means movable between first and second control positions, and transmission means connecting said first and second rotary input means with said control means so that the latter is placed in first and second control positions when said second rotary input means operates for selected time periods above and below a predetermined speed, respectively; recording means and a recording surface movable relative to each other, said recording means including an arm and being connected with said control means and placed in first and second recording positions by said control means in said first and second control positions, respectively, for aautomatically recording on said recording surface first and second graphs respectively representing first and second time periods during which said car operates in different operating conditions; an eccentric member driven by said motor; a fork-shaped member embracing said eccentric member; and a spring arm connecting said fork-shaped member with said arm of said recording means so that said recording means is oscillated to form a zig-zag recording on said recording surface, said spring arm being adapted to be connected with a corresponding arm of the recording means of another recording apparatus.

Claim 20

Apparatus for recording operational conditions of a motorcar, comprising a comparison device including first rotary input means comprising an electric motor, second rotary input means rotating at varying speeds depending on the condition of the motorcar, control means movable between first and second control positions, and transmission means connecting said first and second rotary input means with said control means so that the latter is placed in first and second control positions when said second rotary input means operates for selected time periods above and below a predetermined speed, respectively; recording means and a recording surface movable relative to each other, said recording means including an arm and being connected with said control means and placed in first and second recording positions by said control means in said first and second control positions, respectively, for aautomatically recording on said recording surface first and second graphs respectively representing first and second time periods during which said car operates in different operating conditions; an eccentric member driven by said motor; a fork-shaped member embracing said eccentric member; and a spring arm connecting said fork-shaped member with said arm of said recording means so that said recording means is oscillated to form a zig-zag recording on said recording surface, said spring arm being adapted to be connected with a corresponding arm of the recording means of another recording apparatus.

Claim 21

Apparatus as claimed in claim 16 wherein said other recording apparatus comprises another comparison device having other second input means; measuring means for at least the distance of travel of said motor car; and shifting means for connecting said measuring means selectively with said second input means and with said other second input means.

Claim 22

Apparatus as claimed in claim 16 comprising locking means controlled by Said shifting means for automatically locking the comparison device whose second input means is not connected with said measuring means.