Outer protective tube for electric wire
View Patent ↗At least one section of non-bendable straight tube portion includes longitudinal movement restriction protrusions which are provided to protrude from an outer peripheral surface of the non-bendable straight tube portion and are provided with an interval which is equal to a width of a fixing member. In addition, the non-bendable straight tube portion further includes a peripheral movement restriction protrusion provided to protrude from the outer peripheral surface to linearly extend from one end to the other end of the non-bendable straight tube portion along the longitudinal direction of the non-bendable straight tube portion in order to restrict movement of the fixing member in a peripheral direction with respect to the non-bendable straight tube portion.
1. An outer protective tube for an electric wire which is formed of an insulating resin in a tube shape so as to accommodate an electric wire therein and is fixed to a predetermined mounting position by a fixing member, the outer protective tube comprising:
a bendable portion which is a bendable section; and
non-bendable straight tube portions each of which is a section held in a straight tube shape, wherein
the non-bendable straight tube portions and the bendable portion are alternately connected along a longitudinal direction of the outer protective tube, and
a non-bendable straight tube portion of at least one section of the non-bendable straight tube portions includes
a plurality of longitudinal movement restriction protrusions which are provided to protrude from an outer peripheral surface of the non-bendable straight tube portion along a peripheral direction of the non-bendable straight tube portion, and are provided along a longitudinal direction of the non-bendable straight tube portion with an interval which is equal to a width of the fixing member in the longitudinal direction of the non-bendable straight tube portion so as to allow the fixing member to be interposed between the longitudinal movement restriction protrusions, and
at least one peripheral movement restriction protrusion which is provided to protrude from the outer peripheral surface of the non-bendable straight tube portion to linearly extend from one end to the other end of the non-bendable straight tube portion along the longitudinal direction of the non-bendable straight tube portion in order to restrict movement of the fixing member in the peripheral direction with respect to the non-bendable straight tube portion.
2. The outer protective tube for the electric wire according to claim 1 , wherein
in the non-bendable straight tube portion, at least a pair of longitudinal movement restriction protrusions among the plurality of longitudinal movement restriction protrusions are provided with an interval in which the fixing member slidably moves in the longitudinal direction of the non-bendable straight tube portion.
3. The outer protective tube for the electric wire according to claim 1 , wherein
the at least one peripheral movement restriction protrusion comprises a plurality of peripheral movement restriction protrusions, and
the plurality of peripheral movement restriction protrusions are disposed at a plurality of positions evenly dispersed along the peripheral direction of the non-bendable straight tube portion.