F16F1/387

Axle box suspension and elastic bushing shaft body for use in railcar

An elastic bushing includes a recess at a portion of an outer peripheral surface of the elastic bushing which portion is located at an inner side in a car longitudinal direction, the recess being recessed outward in the car longitudinal direction. A tubular portion of an axle beam includes a convex stopper portion protruding outward in the car longitudinal direction from a part of an inner peripheral surface of the tubular portion which part is located at the inner side in the car longitudinal direction, the stopper portion being inserted into the recess with a gap between the stopper portion and a bottom surface of the recess. A thickness of the elastic bushing at the recess in a radial direction is equal to or less than half a thickness of a portion of the elastic bushing in the radial direction which portion is located adjacent to the recess.

Axle box suspension and elastic bushing shaft body for use in railcar

An elastic bushing includes a recess at a portion of an outer peripheral surface of the elastic bushing which portion is located at an inner side in a car longitudinal direction, the recess being recessed outward in the car longitudinal direction. A tubular portion of an axle beam includes a convex stopper portion protruding outward in the car longitudinal direction from a part of an inner peripheral surface of the tubular portion which part is located at the inner side in the car longitudinal direction, the stopper portion being inserted into the recess with a gap between the stopper portion and a bottom surface of the recess. A thickness of the elastic bushing at the recess in a radial direction is equal to or less than half a thickness of a portion of the elastic bushing in the radial direction which portion is located adjacent to the recess.

Bearing arrangement
11773900 · 2023-10-03 · ·

A bearing arrangement to be mounted in a bearing support, with at least one rotary bearing and at least one elastomer sleeve accommodating the rotary bearing is described. The elastomer sleeve has at least one frictional contact surface configured to be accommodated in the bearing support and at least one stop collar. The stop collar (7) has recesses (8), and spring clips (9) arranged in the recesses (8), with which the elastomer sleeve (4) is secured to the bearing support (1).

Bearing arrangement
11773900 · 2023-10-03 · ·

A bearing arrangement to be mounted in a bearing support, with at least one rotary bearing and at least one elastomer sleeve accommodating the rotary bearing is described. The elastomer sleeve has at least one frictional contact surface configured to be accommodated in the bearing support and at least one stop collar. The stop collar (7) has recesses (8), and spring clips (9) arranged in the recesses (8), with which the elastomer sleeve (4) is secured to the bearing support (1).

Stabilizer bush

Provided is a stabilizer bush that ensures improved durability. The stabilizer bush (10) comprises: a bush main body (11) formed from a tubular elastic body having a retention hole (12) through which the stabilizer bar (2) passes; a rigid body portion (14) that is fixed to the bush main body (11) and has a higher rigidity than the bush main body (11); and an elastic film (16) that comprises an elastic body and is in contact with a second surface (14b) of the rigid body portion (14). A part of the elastic film (16) is fitted into depressed portions (15a, 15b) that are depressed from the second surface (14b) to a first surface (14a) side.

ANTI-VIBRATION DEVICE
20220221017 · 2022-07-14 · ·

An anti-vibration device including an outer cylinder 10; a shaft member 20 that is provided in the outer cylinder 10; and an elastic member 40 that links the outer cylinder 10 and the shaft member 20, in which the shaft member 20 has an inner cylinder and four stopper portions 30a to 30d that protrudes from a circumferential surface of the inner cylinder toward the outer cylinder 10 and that are mutually provided at intervals in a circumferential direction, and in which the elastic member 40 links the outer cylinder 10 and the shaft member 20 at a position between stopper portions that are adjacent to each other in the circumferential direction.

ANTI-VIBRATION DEVICE
20220221017 · 2022-07-14 · ·

An anti-vibration device including an outer cylinder 10; a shaft member 20 that is provided in the outer cylinder 10; and an elastic member 40 that links the outer cylinder 10 and the shaft member 20, in which the shaft member 20 has an inner cylinder and four stopper portions 30a to 30d that protrudes from a circumferential surface of the inner cylinder toward the outer cylinder 10 and that are mutually provided at intervals in a circumferential direction, and in which the elastic member 40 links the outer cylinder 10 and the shaft member 20 at a position between stopper portions that are adjacent to each other in the circumferential direction.

VIBRATION DAMPING DEVICE AND METHOD OF MANUFACTURING VIBRATION DAMPING DEVICE
20220282762 · 2022-09-08 · ·

A vibration damping device including an inner, a tubular outer disposed on a radially outer side of the inner, an elastic body connecting the inner and the outer, and a retainer disposed on at least one axial end of the inner and penetrated by an opening in an axial direction. The inner includes an annular projection extending outward in the axial direction from at least one axial end face of the inner and inserted in the opening of the retainer. The annular projection includes a plurality of compressed fixation parts arranged apart from each other in a circumferential direction. The retainer is fixed by compression to the inner by the compressed fixation parts being compressed against an inner circumferential surface of the opening.

Hydroelastic device comprising a locking system
11274726 · 2022-03-15 · ·

The device includes solid force transmission elements including two reinforcements, a damping body, a damping space including a damping chamber, the device being normally in a filling state where the damping space is filled with a damping liquid and may accidentally be in a state of loss of filling, which has an integrated element, specific and proprietary, palliative for the loss of filling, inactive in the state of filling and made active in the state of loss of filling where they bring the hydroelastic device to a state of stiffness of a high level, such element including a locking system including a locking part, integrally rigid, and a deformable load part controlled by the state of the device with respect to filling.

SUSPENSION BUSHING AND SUSPENSION DEVICE
20210309066 · 2021-10-07 ·

Provided are a suspension bushing and a suspension device with which maneuvering stability can be improved without adversely affecting ride quality. Protrusions are formed on the outer circumferential surface of an inner tube, and slits are formed on the inner circumferential surface of an outer tube. The protrusions are arranged in the slits and have a tapered shape in which their width in a direction parallel to an axial line decreases as the distance from the axial line increases. The slits have a shape such that a gap in the direction parallel to the axial line decreases as the distance from the axial line increases.