Hand brake assembly
View Patent ↗A hand brake assembly for a railway car is provided including a housing with a back plate, a cover plate, and a removable panel removably attached to the back plate, the cover plate, or both. The removable panel mounts at least a portion of a shaft of a quick-release handle in the housing when the removable panel is attached to the back plate, the cover plate, or both.
1. A hand brake assembly for connection with a braking mechanism of a railway car, the hand brake assembly comprising:
a gear train for engaging and disengaging the braking mechanism of the railway car;
a quick-release handle operably connected to the gear train and including a shaft; and
a housing enclosing at least a portion of the gear train and the shaft of the quick release handle, the housing comprising
a back plate;
a cover plate attached to the back plate; and
a removable panel removably attached to one or both of the back plate and the cover plate, at least a portion of the shaft of the quick-release handle rotatably mounted in the housing by the removable panel when the removable panel is attached to the housing;
wherein the quick-release handle is operable with a clutch mechanism of the gear train through a bell crank, wherein the bell crank defines a pair of pivot arms rotatably positioned in a respective pair of recesses defined at least in part by the removable panel and the cover plate.
2. The hand brake assembly of claim 1 , wherein the quick-release handle further includes a cam positioned within the housing and extending outward from the shaft along a radial direction of the shaft, and wherein the quick-release handle is operable with the bell crank through the cam.
3. The hand brake assembly of claim 2 , wherein the cam of the quick-release handle is operably connected to the clutch mechanism of the gear train and is configured to move the clutch mechanism to a disengaged position when the quick-release handle is rotated.
4. The hand brake assembly of claim 2 , wherein the quick-release handle is a single piece formed by welding a plurality of parts together.
5. The hand brake assembly of claim 2 , wherein the quick-release handle is a single piece formed by casting.
6. The hand brake assembly of claim 1 , wherein the housing defines a top end and a bottom end, and wherein the removable panel is removably attached to one or both of the back plate and the cover plate at the top end of the housing.
7. The hand brake assembly of claim 1 , wherein the removable panel defines a recess for receipt of a distal end of the shaft of the quick-release handle, and wherein the removable panel and the cover plate together define an opening through Which the shaft of the quick-release handle extends.
8. The hand brake assembly of claim 7 , wherein the quick-release handle defines a cam extending outward from the shaft generally along a radial direction of the shaft, the cam positioned within the housing and preventing removal of the quick-release handle through the opening of the housing when the removable panel is attached to one or both of the back plate and the cover plate.
9. The hand brake assembly of claim 1 , wherein the removable panel is attached to the cover plate.
10. The hand brake assembly of claim 1 , wherein one or both of the back plate and the cover plate are formed by casting.
11. The hand brake assembly of claim 1 , wherein the removable panel is removably attached to one or both of the back plate and the cover plate by a plurality of bolts.
12. The hand brake assembly of claim 1 , wherein the housing defines a top end, a bottom end, and an opening at the bottom end, wherein at least a portion of the gear train extends through the opening, and wherein the housing further comprises a cover attached to the cover plate over the opening such that the gear train is completely enclosed by the housing.
13. The hand brake assembly of claim 1 , wherein the gear train comprises a first gear operably connected to the braking mechanism of the railway car using one or more of a chain, a rope, a cord, and a wire.
14. A hand brake assembly for connection with a braking mechanism of a railway car, the hand brake assembly comprising:
a housing comprising a back plate, a cover plate, and a panel removably attached to one or both of the back plate and the cover plate;
a first handle positioned outside the housing and adjacent to the housing;
a first gear rotatably mounted in the housing in operative engagement with the braking mechanism of the railway car;
a clutch moveable between an engaged position in which the first gear is operatively engaged with the first handle and a disengaged position in which the first gear is disengaged with the first handle; and
a second, quick-release handle operatively connected to the clutch for moving the clutch into the disengaged position, the quick-release handle including a shaft, the panel of the housing mounting at least a portion of the shaft of the quick-release handle in the housing when the panel is attached to one or both of the back plate and the cover plate;
wherein the quick-release handle is operable with a clutch mechanism of the gear train through a bell crank, wherein the bell crank defines a pair of pivot arms rotatably positioned in a respective pair of recesses defined at least in part by the removable panel and the cover plate.
15. The hand brake assembly of claim 14 , wherein the quick-release handle further defines a cam extending outwardly from the shaft along a radial direction of the shaft, the cam positioned within the housing for engaging the bell crank, and wherein the quick-release handle is formed integrally.
16. The hand brake assembly of claim 14 , wherein the housing defines a top end and a bottom end, and wherein the panel is removably attached to one or both of the back plate and the cover plate at the top end of the housing.