LIFT TRUCK APPARATUS FOR MANIPULATING STORAGE DRUMS

• US 3,583,586 A
• Filed: 02/06/1969
• Issued: 06/08/1971
• Est. Priority Date: 02/06/1969
• Status: Expired due to Term

• Current Assignee: Burton Jerry Fred
• Original Assignee: Burton Jerry Fred
• Inventors: BURTON JERRY FRED
• Application Number:
  US04/797,186
• Time in Patent Office: 852 Days
• US Class Current: 414/620
• CPC Class Codes: B66F 9/184 Roll clamps
• CPC Class Codes: B66F 9/187 Drum lifting devices

Abstract

An apparatus for use on lift trucks to handle cylindrical loads, such as barrels or storage drums, which apparatus is capable of gripping and lifting one drum or one or more pairs of drums at a time and of executing a wrist-type action which permits rotating the entire load through 360* about a horizontal axis and orienting each pair of drums through 120* with respect to each other. The apparatus embodies on or more sets of clamping means comprising two cooperating gripping jaws pivoted to the end of an arm on a support member. A first actuating means is fixed to the support member for pivoting one jaw of the set relative to the support member and a second actuating means is fixed to the first jaw for pivoting the other jaw relative to the first. The second actuating means control the gripping motion of the apparatus and the first actuating means rotates each pair of drums through 120* about the line of tangency. This rotation is permitted by spacing the end of the arm at least a drum width from the support member. The support member is mounted for vertical translation and complete rotation on the mast of the lift truck to provide the other manipulative capabilities.

Claims

1. Apparatus for lifting and manipulating storage cylinders comprising:

a. a support means;

b. first and second cylinder-engaging means pivotable with respect to said support means and comprising arcuate members which cooperate to engage the surfaces of two juxtaposed cylinders opposite their line of tangency;

c. third cylinder-engaging means pivotable with respect to said support means and comprising arcuate members which cooperate to engage the surfaces of said juxtaposed cylinders adjacent their line of tangency;

d. first actuator means connected between said support means and said first cylinder-engaging means for controllably pivoting said first cylinder-engaging means relative to said support means;

e. second actuator means connected between said first cylinderengaging means and said second cylinder-engaging means for controllably pivoting said second cylinder-engaging means relative to said first cylinder-engaging means; and

f. an extension on said support means having pivot means on which said first, second and third cylinder-engaging means are each pivoted, said pivot means being spaced from said support means by at least the width of a cylinder to be manipulated to permit a cylinder adjacent said support means to be grasped by said first and second cylinder-engaging means and pivoted through an arc greater than 90* about the axis of said pivot means.

2. An apparatus for use on a lift truck elevator to lift and manipulate one or more pairs of drums about two transverse axes comprising:

a. a turntable mounted on the elevator;

b. a support mounted on said turntable for rotation therewith through at least 90*;

c. an extension on said support having pivot means thereon spaced at least a drum width from said support;

d. first and second gripping jaws each pivoted on said pivot means;

e. drum gripping members on each of said jaws, having portions spaced at least a drum width from said pivot means and cooperating to respectively engage the outer surfaces of two juxtaposed drums;

f. means pivoted on said pivot means for engaging the surfaces of said juxtaposed cylinders adjacent their line of tangency;

g. a first actuator connected to said support for pivoting said first gripping jaw relative to said support through at least 30*; and

h. a second actuator connected between said first gripping jaw and said second gripping jaw for pivoting said second gripping jaw relative to said first gripping jaw to cooperatively engage two juxtaposed cylinders between said grippinG members.