Molla, assieme di molla e pastiglia freno, assieme di corpo pinza

The present invention relates to a spring (1) for a caliper body (8), wherein said spring (1) is shaped to be arranged straddling a brake disc (2) for applying an elastic action on at least one brake pad (3) to bias it away from said brake disc (2); wherein- said brake disc (2) is adapted to rotate about a rotation axis (X-X), which defines an axial direction (A-A), parallel to said rotation axis (X-X), a radial direction (R-R), orthogonal to said rotation axis (X-X), and a tangential direction (T-T) orthogonal both to said axial direction (A-A) and to said radial direction (R-R) ;- said caliper body (8) comprising a first elongated element or wheel side elongated element (38), a second elongated element or opposite wheel side elongated element (39), a first side bridge (40) and a second side bridge (41) adapted to connect said first elongated element (38) to said second elongated element (39) straddling said brake disc (2) and leaving a central portion of said caliper body (8) free from a central connection bridge,said spring (1) comprising: - a first thrust portion (5) and a second thrust portion (6) adapted to apply said elastic action on said at least one brake pad (3), biasing said brake pad (3) at least away from said brake disc (2) in the axial direction (A-A) and the radial direction (R-R); - a first coupling portion (14) adapted to couple said spring with said first side bridge (40);- a second coupling portion (15) adapted to couple said spring (1) with said second side bridge (41) on a tangentially opposite part with respect to said first coupling portion (14), - a backing portion (7) adapted to abut against a caliper pin (16) planted in said caliper body (8) or a caliper tie-rod (17) screwed to said caliper body (8) avoiding coupling with said caliper pin (16) or said caliper tie-rod (17),wherein said spring (1) comprises at least one concave spring portion (46) having a concavity facing towards said brake disc (2) so that at least said backing portion (7) is elastically movable in a radial direction (R-R) towards said brake disc (2) between a rest configuration and at least one work configuration, elastically stressing said first coupling portion (14) and said second coupling portion (15) along said tangential direction (T-T) in opposite directions.