Modular wire holding device for an extension arm support mechanism
A modular wire holding device for an extension arm support mechanism which includes an extension arm that has a recess includes two side walls configured to be disposed in the recess and spaced apart from each other, a sink wall interconnecting closed side edges of the side walls to define a wire accommodating groove with an access opening, and a holding member extending from one side wall toward the other side wall so as to hold a wire assembly to the wire accommodating groove.
1. A modular wire holding device for an extension arm support mechanism which includes an extension arm that defines therein a channel for accommodating an extension and retraction device, the channel being bordered by a mounting wall which has inner and outer surfaces, and which has a recess that extends from the outer surface toward the inner surface, comprising:
two side walls configured to be disposed in the recess and to extend normal to the mounting wall, and spaced apart from each other, each of said side walls having an opened side edge which is disposed adjacent to and extends parallel to the outer surface of the mounting wall, and a closed side edge which is opposite to said opened side edge and disposed inwardly of the inner surface of the mounting wall;
a sink wall having a peripheral edge which interconnects said closed side edges of said side walls to cooperate with said side walls to define a wire accommodating groove with an access opening at said opened side edges of said side walls; and
a holding member extending from said opened side edge of one of said side walls toward said opened side edge of the other one of said side walls so as to hold a wire assembly to said wire accommodating groove.
2. The modular wire holding device as claimed in claim 1 , wherein said sink wall includes a parallel wall segment which is disposed parallel to the mounting wall, and two slope wall segments extending from said parallel wall segment to said opened side edges of said side walls and intersecting with said parallel wall segment by an included angle, said included angle being less than 180 degrees.
3. The modular wire holding device as claimed in claim 2 , wherein said parallel wall segment is configured to be spaced apart from the extension and retraction device.
4. The modular wire holding device as claimed in claim 1 , wherein each of said side walls has at least one retaining member which has a U-shaped slit for a resilient flap that is substantially coplanar with said side wall and that has a fixed end integrally connected to said side wall, and a free end opposite to said fixed end and formed with a resilient protrusion, said resilient protrusion having an abutting wall which is disposed to abut against the extension arm, and a guiding wall which extends from and is inclined relative to said abutting wall to define an included angle less than 90 degrees for facilitating insertion of said side wall into the recess to have said abutting wall abutting against the extension arm.
5. The modular wire holding device as claimed in claim 4 , wherein each of said side walls has two of said retaining members.
6. The modular wire holding device as claimed in claim 5 , further comprising an abutment flange which extends from said opened side edges of said side walls and said sink wall to surround said access opening and which is configured to abut against the outer surface of the mounting wall.
7. The modular wire holding device as claimed in claim 6 , wherein said holding member is connected to said abutment flange.
8. The modular wire holding device as claimed in claim 6 , wherein said sink wall has at least two retaining protrusions which are formed adjacent to said abutment flange and configured to retainingly engage with the recess.