Trench digging, cable laying and trench filling apparatus

• US 4,914,840 A
• Filed: 04/28/1989
• Issued: 04/10/1990
• Est. Priority Date: 05/17/1988
• Status: Expired due to Fees

• Current Assignee: Roger D. Porter
• Original Assignee: Roger D. Porter
• Inventors: Porter, Roger D.
• Primary Examiner(s): Eickholt, Eugene H.
• Application Number:
  US07/344,921
• Time in Patent Office: 347 Days
• Field of Search: 37/142.5, 37/DIG. 3, 405/161, 405/174, 405/179, 405/180, 405/181
• US Class Current: 37/142.5
• CPC Class Codes: E02F 5/08 with digging wheels turning round an axis E02F5/109 takes precedence; with digging wheels per se E02F3/18
• CPC Class Codes: E02F 5/10 with arrangements for reinforcing trenches or ditches; with arrangements for making or assembling conduits or for laying conduits or cables laying pipes per se F16L1/00, making pipes in situ F16L1/038; laying electric cables per se H02G1/06; drainage device- laying apparatus E02B11/02
• CPC Class Codes: E02F 5/12 with equipment for back-filling trenches or ditches

Abstract

A trench digging apparatus which is provided with a safety shield shaped to direct dug dirt back into the trench. The trench digger is also provided with a cable laying device which lays the cable in the dug trench ahead of the refilling dirt. A pipe pulling attachment may also be provided for laying a pipe while digging and refilling the trench.

Claims

1. A trench digger, cable laying and trench filling apparatus which comprises:

a main frame;

front and back wheels supporting said frame and rotatble about respective axles;

a handle secured to said frame for moving said apparatus relative to a surface;

a cutter blade secured to a rotary axle supported by said frame;

drive means secured to said main frame for rotating said rotary axle and said cutter blade;

control means for controlling rotational engagement of said drive means with said rotary axle for controlled rotation of said rotary axle and said cutter blade;

a safety shield secured to said frame relative to said cutter blade for protection from said cutter blade, said safety shield including inner and outer spaced plates on opposite sides of said cutter blade and an upper enclosure for closing an area upwardly of said cutter blade;

an opening in said safety shield through which loose dirt is thrown by said cutter blade during use; and

said safety shield and said cutter blade being disposed to one side of said main frame.

2. An apparatus as set forth in claim 1, which includes:

means secured to said trench digger for supporting a spool of cable, hose or flexible pipe; and

cable guide means secured to said safety shield through which said cable, hose or flexible pipe is fed for placement thereof into a trench cut in a ground surface by said cutter blade.

3. An apparatus as set forth in claim 2, which includes:

means for securing said inner plate of said safety shield to an upwardly extending frame.

4. An apparatus as set forth in claim 1, in which:

said drive means is a power engine which drives a drive pulley, and includes belt means operative relative to said drive pulley which drives said rotary axle for rotating said cutter blade.

5. An apparatus as set forth in claim 2, in which:

said drive means is a power engine which drives a drive pulley, and includes belt means operative relative to said drive pulley which drives said rotary axle for rotating said cutter blade.

6. An apparatus as set forth in claim 3, in which:

said drive means is a power engine which drives a drive pulley, and includes belt means operative relative to said drive pulley which drives said rotary axle for rotating said cutter blade.

7. An apparatus as set forth in claim 2, in which said cable guide means is adjustable relative to said ground surface.

8. An apparatus as set forth in claim 3, in which said cable guide means is adjustable relative to said ground surface.

9. An apparatus as set forth in claim 4, in which said cable guide means is adjustable relative to said ground surface.

10. An apparatus as set forth in claim 5, in which said cable guide means is adjustable relative to said ground surface.

11. An apparatus as set forth in claim 6, in which said cable guide means is adjustable relative to said ground surface.