A bracket apparatus for a composite spring, may include a lower bracket disposed to come into contact with a composite spring when a U-bolt is fastened to a nut; an upper bracket disposed above the lower bracket so as not to be decoupled therefrom by the nut; and an elastic member disposed between the lower bracket and the upper bracket to provide a force such that the lower and upper brackets move away from each other.

A fastening shackle for fastening a leaf spring to a vehicle body of a vehicle includes: a first bearing end which can be fastened to the vehicle body, a second bearing end, and a shackle body connecting the first bearing end and the second bearing end. The first bearing end has an outer sleeve, an inner sleeve and a sleeve-shaped plastic plain bearing, the sleeve-shaped plastic plain bearing being arranged in the outer sleeve and being slidably mounted in the outer sleeve, and the inner sleeve being affixed to the sleeve-shaped plastic plain bearing. The leaf spring is mountable at the second bearing end.

A fastening shackle for fastening a leaf spring to a vehicle body of a vehicle includes: a first bearing end which can be fastened to the vehicle body, a second bearing end, and a shackle body connecting the first bearing end and the second bearing end. The first bearing end has an outer sleeve, an inner sleeve and a sleeve-shaped plastic plain bearing, the sleeve-shaped plastic plain bearing being arranged in the outer sleeve and being slidably mounted in the outer sleeve, and the inner sleeve being affixed to the sleeve-shaped plastic plain bearing. The leaf spring is mountable at the second bearing end.

A leaf spring system includes a main leaf pack having a main leaf spring including a first end, a second and a first surface and a second opposing surfaces extending therebetween. An auxiliary stage leaf pack is arranged at the first. The auxiliary stage leaf pack includes a first surface portion and a second, opposing surface portion. A spacer is arranged between the first surface of the main leaf spring and the second surface portion of the auxiliary stage leaf pack. The spacer includes first axial end, a second axial end. A reinforcement plate is arranged at the first surface portion of the auxiliary stage leaf pack substantially aligned with the spacer. The reinforcement plate includes a first end section, a second end section. At least one of the first end section and the second end section extends beyond a corresponding one of the first and second axial ends.

A leaf spring system includes a main leaf pack having a main leaf spring including a first end, a second and a first surface and a second opposing surfaces extending therebetween. An auxiliary stage leaf pack is arranged at the first. The auxiliary stage leaf pack includes a first surface portion and a second, opposing surface portion. A spacer is arranged between the first surface of the main leaf spring and the second surface portion of the auxiliary stage leaf pack. The spacer includes first axial end, a second axial end. A reinforcement plate is arranged at the first surface portion of the auxiliary stage leaf pack substantially aligned with the spacer. The reinforcement plate includes a first end section, a second end section. At least one of the first end section and the second end section extends beyond a corresponding one of the first and second axial ends.

Provided is a plate spring fixing structure and the like which do not necessitate complex assembling processes and thus can reduce production cost and can be reduced in size, and which enable adjustment, during a production process, of the extent to which the plate spring is bent. A holding structure (1A) includes a first plate spring (12) that has: a fixed portion (12a) embedded in and fixed to a first molded resin part (11); and a spring portion (12b) which is not fixed and which has a spring property. The fixed portion (12a) has a face that is not in contact with the first molded resin part (11).

Provided is a plate spring fixing structure and the like which do not necessitate complex assembling processes and thus can reduce production cost and can be reduced in size, and which enable adjustment, during a production process, of the extent to which the plate spring is bent. A holding structure (1A) includes a first plate spring (12) that has: a fixed portion (12a) embedded in and fixed to a first molded resin part (11); and a spring portion (12b) which is not fixed and which has a spring property. The fixed portion (12a) has a face that is not in contact with the first molded resin part (11).

A bracket apparatus for a composite spring, may include a lower bracket disposed to come into contact with a composite spring when a U-bolt is fastened to a nut; an upper bracket disposed above the lower bracket so as not to be decoupled therefrom by the nut; and an elastic member disposed between the lower bracket and the upper bracket to provide a force such that the lower and upper brackets move away from each other.

A bracket apparatus for a composite spring, may include a lower bracket disposed to come into contact with a composite spring when a U-bolt is fastened to a nut; an upper bracket disposed above the lower bracket so as not to be decoupled therefrom by the nut; and an elastic member disposed between the lower bracket and the upper bracket to provide a force such that the lower and upper brackets move away from each other.

A leaf spring system includes a main leaf pack having a main leaf spring including a first end, a second and a first surface and a second opposing surfaces extending therebetween. An auxiliary stage leaf pack is arranged at the first. The auxiliary stage leaf pack includes a first surface portion and a second, opposing surface portion. A spacer is arranged between the first surface of the main leaf spring and the second surface portion of the auxiliary stage leaf pack. The spacer includes first axial end, a second axial end. A reinforcement plate is arranged at the first surface portion of the auxiliary stage leaf pack substantially aligned with the spacer. The reinforcement plate includes a first end section, a second end section. At least one of the first end section and the second end section extends beyond a corresponding one of the first and second axial ends.