Blade position control apparatus
阅读：425发布：2023-07-13
专利汇可以提供Blade position control apparatus专利检索，专利查询，专利分析的服务。并且An automatic blade position control apparatus mounted on the cutting blade of a surface finishing vehicles for maintaining the end edge thereof at a predetermined distance from a reference string and also at a predetermined height relative to the ground; said apparatus having a vertically disposed feeler arm and a horizontally presented feeler arm, both being engageable with said reference string and having a switch control arm coupled thereto for opening and closing a switch responsive to the movement of the respective feeler arms. The cutting blade is horizontally and vertically moved by hydraulic rams, of the double acting type, which rams are in circuit with the related switch and are operated responsive to the movement of said feeler arms. A parallelogram linkage assembly connects the apparatus to the vehicle for assuring proper blade endwise disposition relative to the reference string regardless of the blade angle with respect to the transverse axis of the vehicle.，下面是Blade position control apparatus专利的具体信息内容。
1. A surface finishing vehicle of the type used for moving earth in accordance with a reference string comprising: A mobile frame adapted for travel substantially parallel to said reference string; A cutting blade disposed transversely of said frame; Means adjustably supporting said cutting blade from said frame including a circle member adapted for rotational movement about a vertical axis; Actuator means associated with said cutting blade for moving same transversely inwardly and outwardly relative to said frame; A steering sensing apparatus for said cutting blade including a rockably mounted feeler member having a slot for receiving said reference string; Support means mounting said steering sensing apparatus on said cutting blade; Sensor means; Means operatively connecting said sensor means and said actuator means; Sensor control means associated with said feeler member for energizing said sensor means responsive to the rockable movement of said feeler member to steer said cutting blade independently of said frame for maintaining same in a preselected position relative to said reference string; Linkage means connecting said support means with said circle and said vehicle frame for maintaining said steering sensing apparatus in predetermined attitude relative to the reference string during the rotational movement of said circle member and said cutting blade; Said support means comprising a fixed component and a swingable component; said swingable component carrying said steering sensing apparatus; bearing means pivotally cOnnecting said swingable component to said fixed component; said linkage means comprising a first extensible member having end portions, one end portion being pivotally connected to said swingable component and the other end portion being fixed to said fixed component; a second extensible member having end portions, one end portion being pivotally connected to said frame and the other end portion being fixed to said circle member; cable means interconnecting said first and second extensible members; said first and second extensible members and said cable means cooperating to maintain said steering sensing apparatus in predetermined attitude relative to said reference string during rotational movement of said circle member and said cutting blade.
2. A surface finishing vehicle of the type used for moving earth in accordance with a reference string comprising: a mobile frame adapted for travel substantially parallel to said reference string; a cutting blade disposed transversely of said frame; means adjustably supporting said cutting blade from said frame; actuator means associated with said cutting blade for moving same transversely inwardly and outwardly relative to said frame; a position sensing apparatus including a rockably mounted feeler member having a slot for receiving said reference string; sensor means; means connecting said sensor means and said actuator means; sensor control means associated with said feeler member for energizing said sensor means responsive to the rockable movement of said feeler member; support means connecting said position sensing apparatus to said cutting blade; said support means comprising a fixed component and a swingable component; bearing means pivotally connecting said swingable component to said fixed component; said swingable component having first and second end portions; said first end portion carrying said position sensing apparatus; a first extensible member having a sleeve and a rod telescopicly received within said sleeve; means pivotally connecting said sleeve with said second end portion of said swingable component; means fixing said rod to said fixed component; cable means connecting said first extensible member to said means adjustably supporting said cutting blade to said frame.
3. A surface finishing vehicle as defined in claim 2 and further characterized by: Said means adjustably supporting said cutting blade from said frame including a circle member having a center and adapted for rotational movement about said center; A second extensible member comprising a second sleeve and a second rod telescopically received within said second sleeve; Means pivotally connecting said second sleeve to said frame at a spaced distance from said circle center; Means fixing said second rod to said circle for rotation therewith; Said cable means interconnecting said first and second rods.
4. A surface finishing vehicle as defined in claim 3 and further characterized by: The axes of said bearing means and said means pivotally connecting said first sleeve with said swingable component being disposed in a vertical plane presented in parallel relationship with a vertical plane containing the axes of said circle center and the means pivotally connecting said second sleeve to said frame.
5. A surface finishing vehicle as defined in claim 3 and further characterized by: The axes of said bearing means and said circle center being disposed in a vertical plane presented in parallel relationship with a vertical plane containing the axes of the said means pivotally connecting said first sleeve with the second end portion of said swingable component and said second sleeve to the vehicle frame.
6. A surface finishing vehicle as defined in claim 2 and further characterized by: Said cutting blade having a cutting edge, an end edge and a junction joining the cutting edge and the end Edge The axis of said bearing means being in vertical alignment with the junction of the cutting edge and the end edge of said cutting blade; Said first and second extensible members and said cable means cooperating to maintain said junction a predetermined distance from the reference string.
7. For use with a cutting tool having an end edge, an apparatus for automatically maintaining the end edge of a cutting tool a predetermined distance from a reference string comprising: said cutting tool having actuator means for laterally moving same inwardly and outwardly relative to said reference string; means defining a housing mounted on said cutting tool; sensor means within said housing being operatively connected to said actuator means, said sensor means comprising: light projecting means, and first and second light responsive switches in circuit with said actuator means and presented within said housing in aligned relationship with said light projecting means; a sensor control arm rockably mounted within said housing for energizing said sensor means, said sensor control arm being normally presented between said light projecting means and said first and second light responsive switches for maintaining same in a circuit-opened condition; a rockably mounted feeler member having an elongate slot for receiving said reference string, said feeler member being disposed exteriorly of said housing in planar parallel spaced-apart relationship with said sensor control arm; means coupling said sensor control arm to said feeler member for effecting simultaneous movement therewith.
8. An apparatus as defined in claim 7 and further characterized by: said sensor control arm having a first end portion and a second end portion; said coupling means fixing the first end portion of said sensor control arm to said feeler member; each first and second light responsive switches having a center; the second end portion if said sensor control arm being normally presented between said light projecting means and said first and second light responsive switches, said second end portion having a width greater than the distance between the centers of said first and second light responsive switches.
9. An apparatus as defined in claim 8 and further characterized by: said sensor control arm having side edges; the second end portion of said sensor control arm having margins diverging outwardly of said side edges for defining a triangular-shaped tongue; said tongue being normally presented in blocking relationship between said light projecting means and said first and second light responsive switches.
10. An apparatus as defined in claim 9 and further characterized by: adjustment means on said sensor control arm for moving same longitudinally within said housing relative to said first and second light responsive switches.
11. An apparatus as defined in claim 7 and further characterized by: Balance means mounted on said feeler member for maintaining said sensor control arm in a plane disposed in normal relationship to a plane containing the axes of said first and second light responsive switches.
12. A surface finishing vehicle of the type used for moving earth in accordance with a reference string comprising: a mobile frame adapted for travel substantially parallel to said reference string; a cutting blade disposed transversely of said frame; means adjustably supporting said cutting blade from said frame including a circle member adapted for rotational movement about a vertical axis; actuator means associated with said cutting blade for moving same transversely inwardly and outwardly relative to said frame; a steering sensing apparatus for said cutting blade including a rockably mounted feeler member having a slot for receiving said reference string; support means pivotally mounting said steering sensing apparatus on said cutting blade; sensor means; means operatIvely connecting said sensor means and said actuator means; sensor control means associated with said feeler member for energizing said sensor means responsive to the rockable movement of said feeler member; linkage means connecting said support means with said circle member and said vehicle frame for simultaneously maintaining: said steering sensing apparatus in predetermined attitude relative to the reference string; and the end edge of said cutting blade in predetermined spacial relationship to the reference string, during the rotational movement of said circle member and said cutting blade.
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