초록 ▼

A ride control system comprising a member for substantially equalizing pressure and ride valve having three positions, namely, a first inactive position, a second active position and an intermediate equalizing position. The substantial pressure equalizing member equalizing the pressure within the he

A ride control system comprising a member for substantially equalizing pressure and ride valve having three positions, namely, a first inactive position, a second active position and an intermediate equalizing position. The substantial pressure equalizing member equalizing the pressure within the head side of at least one boom cylinder with an accumulator. The inactive position corresponding to one in which the ride valve assembly maintains isolation between the accumulator and at least one boom cylinder. The active position corresponding to one in which the ride valve assembly places the accumulator and at least one boom cylinder in communication with each other. The intermediate position corresponding to one in which the ride valve assembly maintains isolation between the accumulator and at least one boom cylinder and facilitates the activation of the substantial equalizing means.

대표청구항 ▼

A ride control system comprising a member for substantially equalizing pressure and ride valve having three positions, namely, a first inactive position, a second active position and an intermediate equalizing position. The substantial pressure equalizing member equalizing the pressure within the he

A ride control system comprising a member for substantially equalizing pressure and ride valve having three positions, namely, a first inactive position, a second active position and an intermediate equalizing position. The substantial pressure equalizing member equalizing the pressure within the head side of at least one boom cylinder with an accumulator. The inactive position corresponding to one in which the ride valve assembly maintains isolation between the accumulator and at least one boom cylinder. The active position corresponding to one in which the ride valve assembly places the accumulator and at least one boom cylinder in communication with each other. The intermediate position corresponding to one in which the ride valve assembly maintains isolation between the accumulator and at least one boom cylinder and facilitates the activation of the substantial equalizing means. pension and release arrangement including at least one hanger having a narrow strut portion and an enlarged cross-section portion, the narrow strut portion being adapted to be mounted by one end on a store so as to be upstanding therefrom and the enlarged cross section portion being at another end of the strut portion, the arrangement also including means adapted to be mounted in structure of store carrying aircraft and operable to embrace said hanger by embracing the enlarged cross section thereof whereby to retain the store suspended from the aircraft and means operable to effect release of the store from the embracing means in order to release the store from the aircraft, wherein means separate from said hanger are provided for operation in combination with the hanger to establish a couple in reaction to a rolling moment to which said store is subjected during maneuvering of said store carrying aircraft when said hanger is mounted on said store and said store is suspended from said aircraft structure, the enlarged cross section portion of said hanger being embraced by said releasable embracing means, wherein said aircraft structure is formed with a slot for the at least one hanger, that slot being just wide enough for the passage through of the respective hanger, the embracing means being within the aircraft structure, and wherein shutter means are provided for covering said at least one slot when no hanger extends through the slot. 2. An airborne store suspension and release arrangement according claim 1, wherein said store and said aircraft structure are formed surfaces which abut one another when said store is suspended from said aircraft structure, said means operable in co-operation with said hanger to establish said coupling including said butting surfaces. 3. An airborne store suspension and release arrangement according to claim 2, wherein the upstanding portion of said one hanger is aligned with the geometrical center of said store. 4. An airborne store suspension and release arrangement according to claim 1, wherein there are two said hangers and respective releasable embracing means operable to embrace the enlarged cross section portion of each hanger, the two hangers being located one on either side of a vertical plane through the centre of the store, the vertical plane being substantially midway between the upstanding strut portion of the two hangers. 5. An airborne store suspension and release arrangement according to claim 1, wherein said releasable embracing means are releasable clamping means operable to clamp said enlarged cross section portion of said one hanger. 6. An airborne store suspension and release arrangement according to claim 4, wherein said embracing means are overhead rail means from which said store is adapted to be suspended and on which said enlarged cross section portion of each said hanger is adapted to slide. 7. An airborne store suspension and release arrangement according to claim 1, including abutment means mounted in said aircraft structure and adapted to be engaged with part of the or each said hanger. 8. An airborne store suspension and release arrangement according to claim 7, wherein said abutment means is adapted to react roll forces exerted by a store suspended by said aircraft structure. 9. An airborne store suspension and release arrangement according to claim 7, wherein said abutment means are adapted to react forces exerted by a store suspended by said aircraft structure in a fore and aft direction. 10. An airborne store suspension and release arrangement according to claim 7, wherein said abutment means is a fork member. 11. Apparatus according to claim 1, wherein said at least one hanger is pivotally mounted by said one end at the edge of the correspondingly shaped recess in the structure in which the said at least one hanger is mounted, and means are provided which are operable to pivot said at least one hanger into the respective recess when the hanger is released from the embracing means. 12. Apparatus according to claim 1, wherein the or each said hanger is a reversible member with such an enlarged cross section portion at either end of a medial narrow strut portion, one of the enlarged cross section portions being embedded in the supporting structure so that the remainder of the hanger is upstanding from that structure. 13. An airborne store suspension and release arrangement according to claim 1, wherein the shutter means are flush with the surrounding structure when said at least one slot is closed thereby. 14. An airborne store suspension and release arrangement according to claim 1, wherein the shutter means are shaped so that their front and rear surfaces are oblique to the fore and aft axis of the store and to a lateral axis normal to said fore and aft axis. 15. An airborne store suspension and release arrangement according to claim 1, wherein compressible sealing means are provided between mating surfaces of a store and said aircraft structure when a store is suspended from said aircraft structure.