Railcar bogie including axle spring

A railcar bogie comprising:

• an axle box;
• a bogie frame including a pair of rubber spring receivers and surrounding both side surfaces of the axle box in a longitudinal direction of the bogie and an upper surface of the axle box;
• a pair of rubber springs interposed between the pair of rubber spring receivers and both the side surfaces of the axle box, such that one ends of the rubber springs are fixed to the respective side surfaces of the axle box, and such that other ends of the rubber springs are fixed to the respective rubber spring receivers;
• a pair of bogie-frame-side supporting members provided, in a removable manner, on respective lower portions of fixing portions of the bogie frame to which the rubber springs are fixed, the bogie-frame-side supporting members being configured to support the rubber springs by contacting lower portions of the other ends of the rubber springs from below when a fixed state between the rubber springs and the bogie frame as well as between the rubber springs and the axle box is released;
• and
• a pair of bogie-frame-side locking members provided above the respective fixing portions of the bogie frame to which the rubber springs are fixed, the bogie-frame-side locking members being configured to lock upper portions of the other ends of the rubber springs when the fixed state between the rubber springs and the bogie frame as well as between the rubber springs and the axle box is released.

A railcar bogie comprising:

• an axle box;
• a bogie frame including a pair of rubber spring receivers and surrounding both side surfaces of the axle box in a longitudinal direction of the bogie and an upper surface of the axle box;
• a pair of rubber springs interposed between the pair of rubber spring receivers and both the side surfaces of the axle box, such that one ends of the rubber springs are fixed to the respective side surfaces of the axle box, and such that other ends of the rubber springs are fixed to the respective rubber spring receivers;
• a pair of axle-box-side supporting members provided on respective lower portions of both the side surfaces of the axle box, the axle-box-side supporting members being configured to support the rubber springs by contacting lower portions of the one ends of the rubber springs from below when a fixed state between the rubber springs and the bogie frame as well as between the rubber springs and the axle box is released;
• a pair of axle-box-side locking members each provided on top of the axle box in a removable manner, the axle-box-side locking members each being configured to lock an upper portion of the one end of a corresponding one of the rubber springs by contacting the upper portion in a direction from the other end to the one end of the corresponding rubber spring when the fixed state between the rubber springs and the bogie frame as well as between the rubber springs and the axle box is released;
• a pair of bogie-frame-side supporting members provided, in a removable manner, on respective lower portions of fixing portions of the bogie frame to which the rubber springs are fixed, the bogie-frame-side supporting members being configured to support the rubber springs by contacting lower portions of the other ends of the rubber springs from below when the fixed state between the rubber springs and the bogie frame as well as between the rubber springs and the axle box is released;
• and
• a pair of bogie-frame-side locking members provided above the respective fixing portions of the bogie frame to which the rubber springs are fixed, the bogie-frame-side locking members being configured to lock upper portions of the other ends of the rubber springs when the fixed state between the rubber springs and the bogie frame as well as between the rubber springs and the axle box is released.