8 results about "Angular sector" patented technology

An injection mold for the manufacture of an axisymmetric part of composite material comprising a mandrel supporting a fibrous preform and comprising an annular wall, and a plurality of counter-mold angular sectors assembled to the mandrel and intended to close the mold and to compact the fibrous preform wound on the mandrel. Each angular sector comprises an annular base intended to come into contact with the fibrous preform. The plurality of angular sectors includes a first series of angular sectors and a second series of angular sectors, first and second lateral edges of the first series of sectors each including a protruding lower portion, the first and the second lateral edges of the second series of sectors each including a recessed lower portion.

The present invention relates to a method for semi-automatically repairing a carcass (1) of a tire to be retreaded, the method comprising transmission, by a camera (5), of the image of the angular sectors (S) of the outer surface (13) of the carcass (1), the transmission being carried out to an operator interface (8) allowing an operator to search for possible damage (10) present on the carcass (1). The operator then selects types of damage (10) and regions to be treated (Zt) surrounding the damage (10) so as to allow the operator interface (8) to communicate with a control device (7) controlling a treatment device (14) in order to carry out, with a treatment tool (6) corresponding to the damage (10), the treatment of the region to be treated (Zt) so as to allow the operator to visualize the state of the reinforcement cords (12) and determine whether the reinforcement cords (12) are still able to ensure their function of reinforcing the carcass (1).

The invention relates to a forward display mechanism comprising: a first wheel driven by a timepiece movement; a second wheel coaxial with the first wheel and linked to it by a resilient member; a first intermediate wheel directly driven by the first wheel, which directly drives a third wheel carrying a display member; the third wheel comprising at least two smooth angular sectors whose teeth are truncated; a fourth wheel coaxial with the third wheel and rigidly connected in rotation to it, which engages with the second wheel via a second intermediate wheel; the mechanism being configured so that when the display member is driven angularly by successive short jumps of first angle between two indicator marks separated by a first angle, the rotation speed of the second wheel is less than that of the first wheel, so as to progressively wind the resilient member during this period, and so that the resilient member is unloaded when the teeth of the intermediate wheel encounter the smooth angular sectors of the third wheel, resulting in an instantaneous passage through the smooth angular sectors and in an angular movement achieved by a long jump of second angle by the display member.

The invention relates to a gear-shift system (100) for a chain (10) comprising a shaft (102), a first toothed chainwheel (104) inscribed in a working plane (P), secured to said shaft (102) and meshing with the chain, at least one other toothed chainwheel (106a-d) divided into toothed angular sectors (108a-e), each of which is movable in translation between a rest position in which said toothed angular sector (108a-e) is offset with respect to the working plane (P) and an active position in which said toothed angular sector (108a-e) is in the working plane (P), and a shifting system which moves each toothed angular sector (108a-e) from the rest position to the active position and vice versa.

A system (100) for distributing fluid includes a housing (102) defining a receiving portion (104) for a distributing member (10) intended to rotate about an axis (X). The housing is provided with channels (110a-110f) distributed around the circumference of the housing. At least three channels (110a-110d) belong to a first group (G1), each occupying a given first angular sector, and at least two channels (110e-110f) belong to a second group (G2), each occupying a second angular sector smaller than the first sector. The system is configured such that rotation of the distributing member, which allows fluid to flow between one of the channels from the second group and one of the channels from the first group and prevents flow between a different channel from the second group and the same channel from the first group, keeps flow between the other channels from the first group open.

GEAR CHANGE SYSTEM FOR CYCLE The invention relates to a gear change system (100) for a chain (10) comprising a shaft (102), a first toothed disc (104) inscribed in a working plane (P), fixed to said shaft (102) and meshing with the chain, at least one other toothed disc (106a-d) divided into toothed angular sectors (108a-e) where each is movable in translation between a rest position in which said toothed angular sector (108a-e) is offset from the working plane (P) and an active position in which said toothed angular sector (108a-e) is in the working plane (P), and a displacement system that moves each toothed angular sector (108a-e) from the rest position to the active position and vice versa. Fig. 4

The invention relates to a mandrel (10) for manufacturing a rotationally symmetrical part made of composite material, wherein the mandrel comprises a forming support (Sf) that is movable in a radial direction (DR1, DR2), and wherein the mandrel has rotational symmetry about a longitudinal axis (A10). The forming support (Sf) comprises a first pair of angular sectors (11, 12) arranged opposite one another with respect to the longitudinal axis (A10) of the mandrel, and a second pair of angular sectors (21, 22) arranged opposite one another with respect to the longitudinal axis (A10), wherein a first actuating mechanism is configured to move the angular sectors (11, 12) of the first pair of angular sectors between a deployment position and a retraction position, and wherein a second actuating mechanism is configured to move the angular sectors (21, 22) of the second pair of angular sectors between a deployment position and a retraction position. The first and second actuating mechanisms each comprise a threaded rod (100, 200) extending along the longitudinal axis (A10), at least one carriage (111, 112) cooperating with the threaded rod (100, 200) and configured to slide along the longitudinal axis (A10) when the threaded rod (100, 200) is rotated, and at least one radial translation means associated with each angular sector of one of the first (11, 12) or second (21, 22) pairs of angular sectors, wherein the radial translation means is connected to the carriage (111, 112) and configured to radially translate the angular sector upon rotation of the threaded rod (100, 200).