Miniature, portable, self-contained power machine

• US 5,423,654 A
• Filed: 09/25/1992
• Issued: 06/13/1995
• Est. Priority Date: 09/25/1992
• Status: Expired due to Fees

• Current Assignee: David J. Rohrbaugh
• Original Assignee: David J. Rohrbaugh
• Inventors: Rohrbaugh, David J.
• Primary Examiner(s): Underwood, Donald W.
• Application Number:
  US07/951,016
• Time in Patent Office: 991 Days
• Field of Search: 180/305, 180/306, 180/2.1, 180/95.2, 180/6.28, 180/6.3, 180/6.7, 180/9.1, 180/68.5, 198/813, 198/500, 414/686, 414/687, 414/718, 414/728, 414/918, 298/22 R, 298/1 A
• US Class Current: 414/686
• CPC Class Codes: B60L 1/003 to auxiliary motors, e.g. for pumps, compressors
• CPC Class Codes: B60L 2200/40 Working vehicles
• CPC Class Codes: B60L 2250/10 by alarm
• CPC Class Codes: B60L 2250/16 by display
• CPC Class Codes: B60L 50/52 characterised by DC-motors
• CPC Class Codes: B60L 50/66 Arrangements of batteries
• CPC Class Codes: B60L 58/12 responding to state of charge [SoC]
• CPC Class Codes: E02F 3/286 telescopic or slidable fork-lift trucks with a telescopic boom B66F9/0655
• CPC Class Codes: E02F 3/302 with an additional link
• CPC Class Codes: E02F 3/306 with telescopic dipper-arm or boom
• CPC Class Codes: E02F 3/308 working outwardly
• CPC Class Codes: E02F 3/325 Backhoes of the miniature type
• CPC Class Codes: E02F 9/121 Turntables, i.e. structure rotatable about 360°
• CPC Class Codes: E02F 9/207 of the type electric propulsion units, e.g. electric motors or generators
• CPC Class Codes: Y02P 90/60 Electric or hybrid propulsion means for production processes
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries
• CPC Class Codes: Y10S 414/131 Transmission-line guide for a shiftable handler

Abstract

Disclosed herein is a miniature, portable, self-contained power machine for handling materials, comprising, a rigid frame providing the base structure for all components of said machine, a means of electrical power supply for said machine, means for regulating the motion of said machine, two endless belts forming a belt traction system and serving as the means to move said machine over various types of terrain, means for readily receiving and rigidly securing a variety of miniature, hydraulically powered material handling implements to said machine, and a central hydraulic system which is powered by said power supply means and which supplies power to said attachable material handling implements. The machine has a diversity of applications in numerous industries. The machine accepts any of a variety of attachable implements through an assembly socket and a torque arm socket, and then links the implement to the central hydraulic system with hydraulic hoses leading to a hydraulic power manifold. Two of these implements include a telescoping boom and bucket assembly and an improved forward reach and higher lift capacity bucket assembly. A hydraulically powered dumping bed attachment may be bolted to the rigid frame of the machine and further modified to result in a hydraulically powered dumping bed and hopper attachment.

Claims

1. A miniature, portable, self-contained power machine for handling materials, comprising:

a rigid frame having an integral platform and providing a base structure for all components of said machine;

electrical power supply means for powering said machine and attached to said rigid frame;

means for regulating the motion of said machine;

two endless belts forming a traction system for moving said machine over various terrains and attached to said rigid frame;

a central hydraulic system which is powered by said electrical power means;

a hydraulically powered telescoping boom and bucket assembly having a telescopic boom and a plate connected to said telescoping boom having two differently sized shafts extending from said plate;

an assembly socket formed in said integral platform of said rigid frame for receiving and rigidly securing the larger of said two differently sized shafts extending from said plate;

a torque arm socket means formed in said integral platform of said rigid frame for receiving and rigidly securing a smaller of said two differently sized shafts extending from said plate; and

a retainer cap for fastening to said larger of said two differently sized shafts from underneath said integral platform and for rigidly securing said larger of said two differently sized shafts within said assembly socket and thereby securing said telescoping boom and bucket assembly to said machine.

2. A miniature, portable, self-contained power machine for handling materials, comprising:

a rigid frame having an integral platform and providing a base structure for all components of said machine;

electrical power supply means for powering said machine and attached to said rigid frame;

means for regulating the motion of said machine;

two endless belts forming a traction system for moving said machine over various types of terrain and attached to said rigid frame;

a central hydraulic system which is powered by said electrical power means;

a hydraulically powered, telescoping boom and bucket assembly, including;

(a) a telescoping boom;

(b) a boom elevation and retainer sleeve to hold said telescoping boom;

(c) a plate connected to said telescoping boom and bucket assembly having two different-sized shafts extending therefrom;

(d) a bucket assembly connected at an end of said boom;

(e) hydraulic means to rotate said telescoping boom and bucket assembly about a vertical axis;

(f) hydraulic means to extend and retract said telescoping boom and bucket assembly;

(g) hydraulic means to elevate said telescoping boom and bucket assembly;

(h) hydraulic means to pivot said bucket assembly;

(i) a multiplicity of hydraulic hoses for transferring power from said central hydraulic system to said various hydraulic means of said telescoping boom and bucket assembly;

(j) means to take up the slack of said hydraulic hoses assuring operation of said telescoping boom and bucket assembly;

an assembly socket formed in said integral platform of said rigid frame for receiving and rigidly securing a larger of said two differently sized shafts extending from said plate; and

a retainer cap for fastening to a larger of said two differently sized shafts extending from said adapter plate from underneath said integral platform thereby rigidly securing said larger of said two differently sized shafts within said assembly socket and said telescoping boom and bucket assembly to said machine.

3. A miniature, portable, self-contained power machine for handling materials as recited in claim 2, wherein said hydraulic means to elevate said telescoping boom and bucket assembly is a boom elevation hydraulic cylinder which is attached to said boom elevation and retainer sleeve and connected to said central hydraulic system.

4. A miniature, portable, self-contained power machine for handling materials as recited in claim 2, wherein said hydraulic means to rotate said telescoping boom and bucket assembly about a vertical axis is a hydraulic motor connected to said central hydraulic system.

5. A miniature, portable, self-contained power machine for handling materials as recited in claim 2 wherein said boom elevation and retainer sleeve holds said telescoping boom whereby said telescoping boom can freely extend and retract therethrough.

6. A miniature, portable, self-contained power machine for handling materials as recited in claim 2, wherein said telescoping boom comprises a plurality of hydraulic cylinders which are slidingly connected in a series relative to each other and can extend and retract one at a time.