초록 ▼

A lock nut assembly comprises a sleeve bolt (1), a clamp bolt (6) and a locking bolt (7). The sleeve bolt (1) has a hollow shank with an internally threaded portion (5) at one end and a head (3) having an axial bore (2) extending through it at the other end, at which it is internally threaded (4). T

A lock nut assembly comprises a sleeve bolt (1), a clamp bolt (6) and a locking bolt (7). The sleeve bolt (1) has a hollow shank with an internally threaded portion (5) at one end and a head (3) having an axial bore (2) extending through it at the other end, at which it is internally threaded (4). The clamp bolt (6) also has a hollow shank with an externally threaded central portion (9) and an internally threaded portion (10) at one end (10) and a head (8) at its opposite end. The locking bolt (7) has an externally threaded portion at one end (12) and a head (11) at its opposite end. The central portion (9) of the clamp bolt (6) and the internally threaded portion (5) of the sleeve bolt (1) are dimensioned for co-operation with threads of one hand, and the second portion (10) of the clamp bolt (6) and the externally threaded portion (12) of the locking bolt (7) are dimensioned for co-operation with threads of opposite hand. In use, the clamp bolt (6) is screwed into the sleeve bolt (1), the locking bolt (7) is screwed into the clamp bolt (6) via the hollow shank of the sleeve bolt (1) and, because of the opposite handedness of the respective co-operating threads, the assembly will resist any tendency to undo. Further, components between the heads (3, 11) of the sleeve bolt (1) and clamp bolt (7) will be retained there with a substantially constant predetermined torque.

대표청구항 ▼

A lock nut assembly comprising a sleeve bolt, a clamp bolt and a locking bolt, in which the sleeve bolt has a hollow shank with an internally threaded portion at one end and a head portion having an axial bore extending through it at its opposite end, a portion of said opposite end being internally

A lock nut assembly comprising a sleeve bolt, a clamp bolt and a locking bolt, in which the sleeve bolt has a hollow shank with an internally threaded portion at one end and a head portion having an axial bore extending through it at its opposite end, a portion of said opposite end being internally threaded, the clamp bolt also having a hollow shank, said hollow shank including one end with a first, externally threaded, portion and a second, internally threaded portion, and a head portion at its opposite end, and the locking bolt has an externally threaded portion at one end and a head portion at its opposite end, wherein the first portion of the shank of the clamp bolt and the internally threaded portion of the shank of the sleeve bolt are dimensioned for co-operation with threads of one hand, and the second portion of the shank of the clamp bolt and the externally threaded portion of the locking bolt are dimensioned for co-operation with threads of opposite hand, whereby in use the clamp bolt may be screwed into the sleeve bolt the locking bolt may be screwed into the clamp bolt via the hollow shank of the sleeve bolt and, because of the opposite handedness of the respective co-operating threads, the assembly will resist any tendency to undo.