US3896957A - Roll clamp - Google Patents

Roll clamp Download PDF

Info

Publication number
US3896957A
US3896957A US468021A US46802174A US3896957A US 3896957 A US3896957 A US 3896957A US 468021 A US468021 A US 468021A US 46802174 A US46802174 A US 46802174A US 3896957 A US3896957 A US 3896957A
Authority
US
United States
Prior art keywords
clamp
pin
clamp arms
arm
arms
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US468021A
Inventor
Stuart Wallace Sinclair
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Security Pacific Business Credit Inc
Original Assignee
Anderson Clayton and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anderson Clayton and Co filed Critical Anderson Clayton and Co
Priority to US468021A priority Critical patent/US3896957A/en
Application granted granted Critical
Publication of US3896957A publication Critical patent/US3896957A/en
Assigned to LONG REACH MANUFACTURING CO. A CORP. OF DE. reassignment LONG REACH MANUFACTURING CO. A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ANDERSON, CLAYTON & CO., A CORP. OF DE.
Assigned to LONG REACH HYDRAULICS CORPORATION, 345 MERCHANDISE MART, CHICAGO, IL 60654, A CORP. OF DE reassignment LONG REACH HYDRAULICS CORPORATION, 345 MERCHANDISE MART, CHICAGO, IL 60654, A CORP. OF DE ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: LONG REACH MANUFACTURING CO., A DE CORP.
Assigned to GLENFED FINANCIAL CORPORATION, A CORP. OF CA. reassignment GLENFED FINANCIAL CORPORATION, A CORP. OF CA. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONG REACH HYDRAULIC CORPORATION, A CORP. OF DE
Assigned to UNION CARBIDE CORPORATION, A CORP. OF NEW YORK reassignment UNION CARBIDE CORPORATION, A CORP. OF NEW YORK SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONG REACH HYDRAULICS CORPORATION, A CORP. OF DE
Assigned to SECURITY PACIFIC BUSINESS CREDIT INC., A DE. CORP. reassignment SECURITY PACIFIC BUSINESS CREDIT INC., A DE. CORP. SECURITY INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LONG REACH HYDRAULICS CORPORATION (A DE. CORP.)
Anticipated expiration legal-status Critical
Assigned to SECURITY PACIFIC BUSINESS CREDIT, INC. reassignment SECURITY PACIFIC BUSINESS CREDIT, INC. TERMINATION OF PATENT COLLATERAL ASSIGNMENT Assignors: LONG REACH HYDRAULICS CORPORATION
Assigned to GLENFED FINANCIAL CORPORATION reassignment GLENFED FINANCIAL CORPORATION RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: LONG REACH HYDRAULICS CORPORATION
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/18—Load gripping or retaining means
    • B66F9/184—Roll clamps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S414/00—Material or article handling
    • Y10S414/124—Roll handlers

Definitions

  • ABSTRACT A roll clamp which is used for moving paper rolls or other objects of various sizes from one place to another.
  • the roll clamp which can be rotated 360 in a vertical plane with respect to the truck to which it is attached, includes a rotatable frame, two clamp arms, a pin for attachment of the clamp arms to the rotatable frame, a first piston and cylinder assembly connected between the clamp arms for rotating the clamp arms with respect to each other about the pin, and a second piston and cylinder assembly connected to the rotatable frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin.
  • the pin is located adjacent to the rotatable frame and is offset from the center line of rotation of the rotatable frame.
  • the first piston and cylinder assembly is located within the open center of the rotatable frame, while the second assembly is located within the body of one of the clamp arms.
  • the apparatus system of the present invention generally provides means for lifting, manipulating, transporting and depositing a cylindrical load.
  • the system which is attached to a vehicular structure, includes a rotatable frame, with an open space, clamp arms, a pin for attaching the clamp arms to the rotatable frame, and at least two piston cylinder cylindrical assemblies-one connected between the clamp arms for rotating the clamp arms with respect to each other about the pin and the other connected to the rotatable frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin.
  • the pin is located adjacent to the rotatable frame and is offset from the center line of rotation of the rotatable frame.
  • the first piston and cylinder assembly is located within the open center space of the rotatable frames while the second assembly is located within the body of one of the clamp arms.
  • an object of the present invention to provide a roll clamp in which the pin for attaching the clamp arms to the rotatable frame is located adjacent to the rotatable frame and is offset from the centerline of rotation of the rotatable frame. This allows a roll which is centered on the rotatable frame to be grasped behind and ahead of a major diameter which is perpendicular to the plane which contains the centerline of rotation.
  • Another object of the present invention is the provision of a roll clamp in which the first piston and cylinder assembly is located within the open center space of the rotatable frame in order to reduce the overhang or overturn moment of the clamp.
  • a further object of the present invention is the provision of a roll clamp in which the second piston and cylinder assembly is located within one of the clamp arms to prevent its interference with any load which is being carried by the clamp.
  • FIG. 1 is a sectional side view of the roll clamp in the equal-arm-length position
  • FIG. 2 is a front plane view of the roll clamp
  • FIG. 3 is a side view of the roll clamp in the long-andshort-arm position
  • FIG. 4 is a side .view of the roll clamp in the shortand-swinging-arm position
  • FIG. 5 is a side view of the roll clamp showing a cylindrical roll being picked up from a vertical position.
  • FIG. 1 DESCRIPTION OF THE PREFERRED EMBODIMENT Shown in FIG. 1 is the roll clamp device of the present invention as it may be used for equal-arm-length capabilities.
  • the rotatable frame: 10 is connected to the basic carriage 12 by means of a circular device 13 which includes an inward section 14 connected to the basic carriage 12, an outward section 16 connected to therotatable frame 10, and a plurality of bearings 18 located between the inward section 14 and outward section 16.
  • the rotatable frame 10 includes an open center portion 19.
  • the basic carriage 12 may be attached by any ordinary form of attachment to a lift elevatorwhich, in turn, is attached to a truck or other suitablemeans of transportation.
  • a clamp which comprises a first clamp arm 22 and a second clamp arm 24, namely, the folding arm 22 and the bottom arm 24.
  • the pin 20 is offset a short distance 25 from the axis of the rotatable frame 10. The offsetting of the pin 20 allows the clamp arms to pick up a roll which is centered on the axis of rotatable frame 10 while the clamp arms are in the long-and-short arm position of FIG. 3.
  • the folding arm 22 includes an extension 26 at the end of the folding arm 22 which is connected to and extends past the pin 20.
  • Connected to the extension 26 and to. the body of the bottom arm 24 are one or more clamping cylinders 28. Attachment of the clamping cylinder 28 to the extension 26 of the folding arm 22 allows the clamping cylinder 28 to be placed within the open center portion 19 of the rotatable frame 10. Such positioning of the clamping cylinder 28 helps to reduce the overhang or overturn moment of the roll clamp. Additionally, this positioning of the clamping cylinder 28 prevents its interference with any load which is being carried by the clamp.
  • the purpose of the clamping cylinder 28 is to rotate the clamp arms 22 and 24 with respect to each other about the pin 20.
  • pivot pin 20 is located adjacent to the rotatable frame 10.
  • the pivot pin has been located at greater distances from the rotatable frame.
  • the pivot pin is located at least one cylindrical diameter away from this turntable (rotator).
  • the pivot pin of the present invention also is offset from the centerline of rotation of the rotatable frame 10. This allows a roll which is centered with respect to the rotatable frame 10 tobe grasped behind and ahead ofa major diameter 37 which is perpendicular to the plane which contains the centerline of rotation.
  • one or more tilt cylinders 30 are located within the bottom arm 24.
  • Such tilt cylinders 30 are connected to the rotatable frame 10 and the bottom arm 24.
  • the purpose of the tilt cylinders 30 is to rotate both of the clamp arms 22 and 24 together and simultaneously about the pin 20.
  • the location of the tilt cylinders 30 within and between the bottom arm 24 prevents their interference with any load which is being carried by the clamp.
  • the rotatable frame is rotatable in' a vertical plane with respect to the basic carriage 12.
  • the clamp arms 22 and 24, which are attached to the rotatableframe l0, rotate simultaneously about the centerline of the rotatable frame.
  • Such rotation allows the clamp to pick up a roll which is in one position. e.g., a vertical position as shown in FIG. 5, rotate the roll to another position for manipulation and transportation, and deposit the roll in a third position, e.g., a horizontal position.
  • the clamp is able to revolve 360.
  • the roll clamp may serve as an equal-arm-length clamp, a long-and-short-arm clamp or a short-andswinging-arm clamp.
  • the pads 32 and 34 of the folding arm 22 and the bottom arm 24, respectively, arelocated in the same vertical plane.
  • the clamp arms 22 and 24 may be rotated so that the pad 32 of the folding arm 22 extends outward from the rotatable frame 10 beyond pad 34 of the bottom arm 24 by suitable actuation of pistons 28 and 30. This is the equivalent of the long-and-short-arm clamp.
  • Such positioning of the clamp allows for T-loading, i.e., the horizontal loading of rolls above rolls which have been loaded vertically, in areas such as railroad boxcars and tunnelling, i.e., movement into and out of close spaces where there is a minimum amount of room to either side for the clamp arms to extend outward from the load.
  • T-loading i.e., the horizontal loading of rolls above rolls which have been loaded vertically
  • areas such as railroad boxcars and tunnelling
  • the back portion 36 of the bottom arm 24 is parallel and adjacent to the rotatable frame 10 and the folding arm 22 is moved to accommodate the various sizes of loads.
  • a pivoted arm clamp as used in the present invention, generally has an advantage over the sliding arm clamps in that its construction avoids the high stress concentration associated with the 90 change in direction from the slides to the arm of the sliding arm clamps. Even with generous fillets and attempts to maintain low stresses in sliding arm clamps, it is difficult to avoid the problem of fatigue failure at the point of change of direction. The gradual change of the curved pivoted arms makes them more rugged and reduces the problems of fatigue failures. Pivoted arms also are more efficient in converting cylindrical force into a squeeze force on the roll.
  • each clamp arm 22 and 24 which is not connected to the pin 20 is a clamping mechanism 38 which is pivotally secured to the particular clamp arm by means of a pin 40.
  • the roll is held between the clamping mechanisms 38 which contain pads 32 and 34 to protect the roll.
  • the roll clamp provides a clamp 21 which may approximate the various configurations of sliding arm and pivoted arm clamps. Such is accomplished by maneuvering the arms 22 and 24 of the roll clamp to the various positions by suitable actuation of the clamping cylinder 28 and tilt cylinder 30. Therefore, in the equal-arm-length position as shown in FIG. 1, the arms 22 and 24 of the roll clamp are positioned by actuation of the cylinders 28 and 30 so that they extend an equal:
  • the arms 22 and 24 of the roll clamp may be positioned by actuation of cylinders 28 and 30 so that the folding arm 22 extends outward from the rotatable frame 10 beyond the bottom arm 24. In such position, the roll clamp approximates a long-and-short-arm clamp.
  • the bottom arm 24 of the roll clamp may be positioned by actuation of the cylinders 28 and 30 so that its back portion is adjacent to the rotatable frame 10.
  • the folding arm 22 is adjusted to accommodate the various sizes of loads.
  • the short-andswinging-arm clamp is normally used to pick up butt rolls, i.e., rolls of small diameters.
  • the clamp 21 may be rotated in a vertical plane by rotation of the rotatable cylinder 10. Therefore, the clamp 21 may pick up a roll which is located in one position, rotate the roll to another position for manipulation and transportation and deposit the roll in a third position.
  • An apparatus for use on a lift truck elevator, which is attached to a truck or other suitable means of transportation, to liftand manipulate a cylindrical load comprising: v
  • a first piston and cylinder assembly connected between the clamp arms for rotating the clamp arms with respect to each other about the pin
  • a second piston and cylinder assembly connected to the rotating frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin.
  • first clamp arm includes an extension which extends past the pin and which is connected to the first piston and cylinder assembly.
  • An apparatus for use on a lift elevator which is atcated within the open center space of the rotating tached to a truck or other suitable means of transportaframe in order to reduce the overhang or overturn tion. to lift and manipulate a cylindrical load comprismoment of the assembly and which is connected to ing: the extension of the first clamp arm and to the seea. a rotating frame, which includes an open center space,
  • a first clamp arm which includes an extension.
  • a first piston and cylinder assembly which is lo- 0nd clamp arm for rotating the clamp arms with respect to each other about the pin
  • a second piston and cylinder assembly which is connected to the rotating frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin and which is located within the clamp arm to which it is attached to prevent its interference with any load which is being carried by the clamp.

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

A roll clamp which is used for moving paper rolls or other objects of various sizes from one place to another. The roll clamp, which can be rotated 360* in a vertical plane with respect to the truck to which it is attached, includes a rotatable frame, two clamp arms, a pin for attachment of the clamp arms to the rotatable frame, a first piston and cylinder assembly connected between the clamp arms for rotating the clamp arms with respect to each other about the pin, and a second piston and cylinder assembly connected to the rotatable frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin. The pin is located adjacent to the rotatable frame and is offset from the center line of rotation of the rotatable frame. The first piston and cylinder assembly is located within the open center of the rotatable frame, while the second assembly is located within the body of one of the clamp arms.

Description

United States Patent 1191 Sinclair July 29, 1975 ROLL CLAMP [75] Inventor: Stuart Wallace Sinclair, Houston,
Tex.
[73] Assignee: Anderson, Clayton & Co., Houston,
Tex.
[22] Filed: May 8, 1974 [21] Appl. No.1 468,021
Primary Examiner-Albert J. Makay Assistant Examiner-George F. Abraham Attorney, Agent, or FirmFulbright & Jaworski [57] ABSTRACT A roll clamp which is used for moving paper rolls or other objects of various sizes from one place to another. The roll clamp, which can be rotated 360 in a vertical plane with respect to the truck to which it is attached, includes a rotatable frame, two clamp arms, a pin for attachment of the clamp arms to the rotatable frame, a first piston and cylinder assembly connected between the clamp arms for rotating the clamp arms with respect to each other about the pin, and a second piston and cylinder assembly connected to the rotatable frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin. The pin is located adjacent to the rotatable frame and is offset from the center line of rotation of the rotatable frame. The first piston and cylinder assembly is located within the open center of the rotatable frame, while the second assembly is located within the body of one of the clamp arms.
5 Claims, 5 Drawing Figures PATENTEI] JUL 2 9 I975 SHEET PATENTED JUL 2 91975 SHEET ROLL CLAMP BACKGROUND OF THE INVENTION Many types of roll clamps exist. The industry presently is using two basic types of clamps: (l) the sliding arm clamp and (2) the pivoted arm clamp. The sliding arm clamp is offered in three basic configurations: l equal length arms, (2) long and short arms and (3) short and swinging arms. The pivoted arm clamp normally is offered in the long-and-short-arms configuration. The present invention provides a roll clamp which avoids the need for the individual configurations while retaining the basic simplicity and other advantages of the individual configurations. Applicant presently is aware of existing patents in the field of art including U.S. Pat. Nos. 3,583,586 (Burton, 1971); 2,870,929 (Quayle, 1959); and 2,645,372 (Broersma, 1953).
SUMMARY OF THE PRESENT INVENTION The apparatus system of the present invention generally provides means for lifting, manipulating, transporting and depositing a cylindrical load. The system, which is attached to a vehicular structure, includes a rotatable frame, with an open space, clamp arms, a pin for attaching the clamp arms to the rotatable frame, and at least two piston cylinder cylindrical assemblies-one connected between the clamp arms for rotating the clamp arms with respect to each other about the pin and the other connected to the rotatable frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin. The pin is located adjacent to the rotatable frame and is offset from the center line of rotation of the rotatable frame. The first piston and cylinder assembly is located within the open center space of the rotatable frames while the second assembly is located within the body of one of the clamp arms.
It is, therefore, an object of the present invention to provide a roll clamp in which the pin for attaching the clamp arms to the rotatable frame is located adjacent to the rotatable frame and is offset from the centerline of rotation of the rotatable frame. This allows a roll which is centered on the rotatable frame to be grasped behind and ahead of a major diameter which is perpendicular to the plane which contains the centerline of rotation.
Another object of the present invention is the provision of a roll clamp in which the first piston and cylinder assembly is located within the open center space of the rotatable frame in order to reduce the overhang or overturn moment of the clamp.
A further object of the present invention is the provision of a roll clamp in which the second piston and cylinder assembly is located within one of the clamp arms to prevent its interference with any load which is being carried by the clamp.
Still other and further objects, features and advantages will be apparent from the following description of a presently preferred embodiment of the invention given for the purpose of disclosure and taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS In the drawings forming a part of the disclosure herein, like character references'designate like parts throughout the several views, wherein,
FIG. 1 is a sectional side view of the roll clamp in the equal-arm-length position,
FIG. 2 is a front plane view of the roll clamp,
FIG. 3 is a side view of the roll clamp in the long-andshort-arm position,
FIG. 4 is a side .view of the roll clamp in the shortand-swinging-arm position, and
FIG. 5 is a side view of the roll clamp showing a cylindrical roll being picked up from a vertical position.
DESCRIPTION OF THE PREFERRED EMBODIMENT Shown in FIG. 1 is the roll clamp device of the present invention as it may be used for equal-arm-length capabilities. The rotatable frame: 10 is connected to the basic carriage 12 by means of a circular device 13 which includes an inward section 14 connected to the basic carriage 12, an outward section 16 connected to therotatable frame 10, and a plurality of bearings 18 located between the inward section 14 and outward section 16. The rotatable frame 10 includes an open center portion 19. The basic carriage 12 may be attached by any ordinary form of attachment to a lift elevatorwhich, in turn, is attached to a truck or other suitablemeans of transportation.
Attached to the rotatable frame 10 by means of a pin 20 is a clamp which comprises a first clamp arm 22 and a second clamp arm 24, namely, the folding arm 22 and the bottom arm 24. The pin 20 is offset a short distance 25 from the axis of the rotatable frame 10. The offsetting of the pin 20 allows the clamp arms to pick up a roll which is centered on the axis of rotatable frame 10 while the clamp arms are in the long-and-short arm position of FIG. 3.
The folding arm 22 includes an extension 26 at the end of the folding arm 22 which is connected to and extends past the pin 20. Connected to the extension 26 and to. the body of the bottom arm 24 are one or more clamping cylinders 28. Attachment of the clamping cylinder 28 to the extension 26 of the folding arm 22 allows the clamping cylinder 28 to be placed within the open center portion 19 of the rotatable frame 10. Such positioning of the clamping cylinder 28 helps to reduce the overhang or overturn moment of the roll clamp. Additionally, this positioning of the clamping cylinder 28 prevents its interference with any load which is being carried by the clamp. The purpose of the clamping cylinder 28 is to rotate the clamp arms 22 and 24 with respect to each other about the pin 20.
One important advantage of the present invention is the location of the pivot pin 20 adjacent to the rotatable frame 10. In the prior art, the pivot pin has been located at greater distances from the rotatable frame. For example, in Burtons U.S. Pat. No. 3,583,586, the pivot pin is located at least one cylindrical diameter away from this turntable (rotator). The pivot pin of the present invention also is offset from the centerline of rotation of the rotatable frame 10. This allows a roll which is centered with respect to the rotatable frame 10 tobe grasped behind and ahead ofa major diameter 37 which is perpendicular to the plane which contains the centerline of rotation.
As shown in FIGS. 1 and 5, one or more tilt cylinders 30 are located within the bottom arm 24. Such tilt cylinders 30 are connected to the rotatable frame 10 and the bottom arm 24. The purpose of the tilt cylinders 30 is to rotate both of the clamp arms 22 and 24 together and simultaneously about the pin 20. The location of the tilt cylinders 30 within and between the bottom arm 24 prevents their interference with any load which is being carried by the clamp. V
The rotatable frame is rotatable in' a vertical plane with respect to the basic carriage 12. The clamp arms 22 and 24, which are attached to the rotatableframe l0, rotate simultaneously about the centerline of the rotatable frame. Such rotation allows the clamp to pick up a roll which is in one position. e.g., a vertical position as shown in FIG. 5, rotate the roll to another position for manipulation and transportation, and deposit the roll in a third position, e.g., a horizontal position. The clamp is able to revolve 360.
The roll clamp may serve as an equal-arm-length clamp, a long-and-short-arm clamp or a short-andswinging-arm clamp. In the equal-arm-length capacity of FIG. 1, the pads 32 and 34 of the folding arm 22 and the bottom arm 24, respectively, arelocated in the same vertical plane. As shown in FIG. 3, the clamp arms 22 and 24 may be rotated so that the pad 32 of the folding arm 22 extends outward from the rotatable frame 10 beyond pad 34 of the bottom arm 24 by suitable actuation of pistons 28 and 30. This is the equivalent of the long-and-short-arm clamp. Such positioning of the clamp allows for T-loading, i.e., the horizontal loading of rolls above rolls which have been loaded vertically, in areas such as railroad boxcars and tunnelling, i.e., movement into and out of close spaces where there is a minimum amount of room to either side for the clamp arms to extend outward from the load. In the short-and-swinging-arm position, as shown in FIG. 4, the back portion 36 of the bottom arm 24 is parallel and adjacent to the rotatable frame 10 and the folding arm 22 is moved to accommodate the various sizes of loads.
A pivoted arm clamp, as used in the present invention, generally has an advantage over the sliding arm clamps in that its construction avoids the high stress concentration associated with the 90 change in direction from the slides to the arm of the sliding arm clamps. Even with generous fillets and attempts to maintain low stresses in sliding arm clamps, it is difficult to avoid the problem of fatigue failure at the point of change of direction. The gradual change of the curved pivoted arms makes them more rugged and reduces the problems of fatigue failures. Pivoted arms also are more efficient in converting cylindrical force into a squeeze force on the roll.
On the end of each clamp arm 22 and 24 which is not connected to the pin 20 is a clamping mechanism 38 which is pivotally secured to the particular clamp arm by means of a pin 40. The roll is held between the clamping mechanisms 38 which contain pads 32 and 34 to protect the roll.
Although the forces for rotating the rotatable frame 10 and driving the clamping cylinders 28 and tilt cylinders 30 have not been specifically described, they may be provided by any acceptable means.
In use, the roll clamp provides a clamp 21 which may approximate the various configurations of sliding arm and pivoted arm clamps. Such is accomplished by maneuvering the arms 22 and 24 of the roll clamp to the various positions by suitable actuation of the clamping cylinder 28 and tilt cylinder 30. Therefore, in the equal-arm-length position as shown in FIG. 1, the arms 22 and 24 of the roll clamp are positioned by actuation of the cylinders 28 and 30 so that they extend an equal:
distance from the rotatable frame 10. The useof such position is particularly beneficial when the rolls are positioned vertically as no other position of arms 22 and 24 can do as much with vertical rolls. lf operations such as T'loading and tunnelling are to be performed, the arms 22 and 24 of the roll clamp may be positioned by actuation of cylinders 28 and 30 so that the folding arm 22 extends outward from the rotatable frame 10 beyond the bottom arm 24. In such position, the roll clamp approximates a long-and-short-arm clamp. Finally, the bottom arm 24 of the roll clamp may be positioned by actuation of the cylinders 28 and 30 so that its back portion is adjacent to the rotatable frame 10. In this position, which approximates the short-andswinging-arm clamp, the folding arm 22 is adjusted to accommodate the various sizes of loads. The short-andswinging-arm clamp is normally used to pick up butt rolls, i.e., rolls of small diameters.
In any of the above-mentioned positions, the clamp 21 may be rotated in a vertical plane by rotation of the rotatable cylinder 10. Therefore, the clamp 21 may pick up a roll which is located in one position, rotate the roll to another position for manipulation and transportation and deposit the roll in a third position.
The present invention, therefore, is well adapted to carry out the objects and attain the ends and advantages mentioned as well as others therein. While a presently preferred embodiment of the invention has been given for the purpose of disclosure, numerous changes in the detail of construction and the combination, shape, size and arrangement of parts may be resorted to without departing from the spirit and the scope of the invention as hereinafter claimed.
What is claimed is:
1. An apparatus for use on a lift truck elevator, which is attached to a truck or other suitable means of transportation, to liftand manipulate a cylindrical load comprising: v
a. a rotating frame,
b. a first clamp arm,
c. a second clamp arm,
(I. a pin for attaching the clamp arms to the rotating frame and about which the clamp arms are rotatable, where the pin is located adjacent to, and less than the diameter of one cylindrical load from, the rotating frame and is offset from the centerline of rotation of the rotating frame,
e. a first piston and cylinder assembly connected between the clamp arms for rotating the clamp arms with respect to each other about the pin, and
f. a second piston and cylinder assembly connected to the rotating frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin.
2. The invention of claim 1 wherein the rotating frame includes an open center space and the first piston and cylinder assembly is located within the open center space in order to reduce the overhang or overturn moment of the assembly.
3. The invention of claim I wherein the second piston and cylinder assembly is located within the clamp arm to prevent its interference with any load which is being carried by the clamp.
4. The invention of claim I wherein the first clamp arm includes an extension which extends past the pin and which is connected to the first piston and cylinder assembly.
5. An apparatus for use on a lift elevator, which is atcated within the open center space of the rotating tached to a truck or other suitable means of transportaframe in order to reduce the overhang or overturn tion. to lift and manipulate a cylindrical load comprismoment of the assembly and which is connected to ing: the extension of the first clamp arm and to the seea. a rotating frame, which includes an open center space,
b. a first clamp arm which includes an extension.
c. a second clamp arm,
d. a pin for attaching the clamp arms to the rotating frame and about which the clamp arms are rotatable, where the pin is located adjacent to the rotating frame and is offset from the center line of rotation of the rotating frame,
e. a first piston and cylinder assembly which is lo- 0nd clamp arm for rotating the clamp arms with respect to each other about the pin, and
f. a second piston and cylinder assembly which is connected to the rotating frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin and which is located within the clamp arm to which it is attached to prevent its interference with any load which is being carried by the clamp.

Claims (5)

1. An apparatus for use on a lift truck elevator, which is attached to a truck or other suitable means of transportation, to lift and manipulate a cylindrical load comprising: a. a rotating frame, b. a first clamp arm, c. a second clamp arm, d. a pin for attaching the clamp arms to the rotating frame and about which the clamp arms are rotatable, where the pin is located adjacent to, and less than the diameter of one cylindrical load from, the rotating frame and is offset from the centerline of rotation of the rotating frame, e. a first piston and cylinder assembly connected between the clamp arms for rotating the clamp arms with respect to each other about the pin, and f. a second piston and cylinder assembly connected to the rotating frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin.
2. The invention of claim 1 wherein the rotating frame includes an open center space and the first piston and cylinder assembly is located within the open center space in order to reduce the overhang or overturn moment of the assembly.
3. The invention of claim 1 wherein the second piston and cylinder assembly is located within the clamp arm to prevent its interference with any load which is being carried by the clamp.
4. The invention of claim 1 wherein the first clamp arm includes an extension which extends past the pin and which is connected to the first piston and cylinder assembly.
5. An apparatus for use on a lift elevator, which is attached to a truck or other suitable means of transportation, to lift and manipulate a cylindrical load comprising: a. a rotating frame, which includes an open center space, b. a first clamp arm which includes an extension, c. a second clamp arm, d. a pin for attaching the clamp arms to the rotating frame and about which the clamp arms are rotatable, where the pin is located adjacent to the rotating frame and is offset from the center line of rotation of the rotating frame, e. a first piston and cylinder assembly which is located within the open center space of the rotating frame in order to reduce the overhang or overturn moment of the assembly and which is connected to the extension of the first clamp arm and to the second clamp arm for rotating the clamp arms with respect to each other about the pin, and f. a second piston and cylinder assembly which is connected to the rotating frame and one of the clamp arms for simultaneous rotation of the clamp arms about the pin and which is located within the clamp arm to which it is attached to prevent its interference with any load which is being carried by the clamp.
US468021A 1974-05-08 1974-05-08 Roll clamp Expired - Lifetime US3896957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US468021A US3896957A (en) 1974-05-08 1974-05-08 Roll clamp

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US468021A US3896957A (en) 1974-05-08 1974-05-08 Roll clamp

Publications (1)

Publication Number Publication Date
US3896957A true US3896957A (en) 1975-07-29

Family

ID=23858119

Family Applications (1)

Application Number Title Priority Date Filing Date
US468021A Expired - Lifetime US3896957A (en) 1974-05-08 1974-05-08 Roll clamp

Country Status (1)

Country Link
US (1) US3896957A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127205A (en) * 1977-09-19 1978-11-28 Cascade Corporation Lift truck load clamp for handling paper rolls
US4177000A (en) * 1978-03-22 1979-12-04 Cascade Corporation Rotatable load clamp adapted for selective load positioning in response to selective rotational positioning of clamp
JPS5546434U (en) * 1978-09-20 1980-03-26
US4227850A (en) * 1978-10-20 1980-10-14 Cascade Corporation Lift truck load clamp for handling paper rolls
EP0085549A2 (en) * 1982-02-01 1983-08-10 Cascade Corporation Lift truck paper roll clamp having automatically adjustable roll positioner for engaging rolls of different diameters
EP0113583A2 (en) * 1982-12-27 1984-07-18 Brudi Equipment, Inc. Method and apparatus for handling container chassis
US4573858A (en) * 1984-02-16 1986-03-04 Long Reach Manufacturing Co. Clamping attachment for a lift truck having two pivoting arms
US5536133A (en) * 1995-02-10 1996-07-16 Long Reach Holdings, Inc. Pivot frame roll clamp assembly for attachment to a lift truck
US5791861A (en) * 1995-07-31 1998-08-11 Seelig; David L. Rotatable vacuum lifting and transporting apparatus
US5806779A (en) * 1995-12-06 1998-09-15 Crum; Lloyd E. Fence dispensing apparatus and method for its use
US7011487B2 (en) 2000-03-06 2006-03-14 Jervis B. Webb Company Apparatus for transport and delivery of articles
US20140369799A1 (en) * 2013-06-17 2014-12-18 Cascade Corporation Tissue roll-handling clamp
CN104477818A (en) * 2014-11-28 2015-04-01 浙江上加机械有限公司 Mechanical holding arm device for carrying scroll
US10017366B2 (en) 2016-04-01 2018-07-10 Cascade Corporation Clamp having a load-clamping hydraulic cylinder with multiple telescopically extensible stages adapted to apply load clamping force alternatively responsive to load-lifting force or load size
CN109132957A (en) * 2018-10-17 2019-01-04 合肥搬易通科技发展有限公司 A kind of door frame jack up unit with clamp system

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583586A (en) * 1969-02-06 1971-06-08 Jerry Fred Burton Lift truck apparatus for manipulating storage drums

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3583586A (en) * 1969-02-06 1971-06-08 Jerry Fred Burton Lift truck apparatus for manipulating storage drums

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4127205A (en) * 1977-09-19 1978-11-28 Cascade Corporation Lift truck load clamp for handling paper rolls
FR2403292A1 (en) * 1977-09-19 1979-04-13 Cascade Corp STACKER CLAMP FOR HANDLING PAPER ROLLS
US4177000A (en) * 1978-03-22 1979-12-04 Cascade Corporation Rotatable load clamp adapted for selective load positioning in response to selective rotational positioning of clamp
JPS5546434U (en) * 1978-09-20 1980-03-26
US4227850A (en) * 1978-10-20 1980-10-14 Cascade Corporation Lift truck load clamp for handling paper rolls
EP0085549A2 (en) * 1982-02-01 1983-08-10 Cascade Corporation Lift truck paper roll clamp having automatically adjustable roll positioner for engaging rolls of different diameters
EP0085549A3 (en) * 1982-02-01 1983-11-23 Cascade Corporation Lift truck paper roll clamp having automatically adjustable roll positioner for engaging rolls of different diameters
EP0113583A3 (en) * 1982-12-27 1985-03-27 Brudi Equipment, Inc. Method and apparatus for handling container chassis
EP0113583A2 (en) * 1982-12-27 1984-07-18 Brudi Equipment, Inc. Method and apparatus for handling container chassis
US4573858A (en) * 1984-02-16 1986-03-04 Long Reach Manufacturing Co. Clamping attachment for a lift truck having two pivoting arms
US5536133A (en) * 1995-02-10 1996-07-16 Long Reach Holdings, Inc. Pivot frame roll clamp assembly for attachment to a lift truck
US5791861A (en) * 1995-07-31 1998-08-11 Seelig; David L. Rotatable vacuum lifting and transporting apparatus
US5806779A (en) * 1995-12-06 1998-09-15 Crum; Lloyd E. Fence dispensing apparatus and method for its use
US7011487B2 (en) 2000-03-06 2006-03-14 Jervis B. Webb Company Apparatus for transport and delivery of articles
US20140369799A1 (en) * 2013-06-17 2014-12-18 Cascade Corporation Tissue roll-handling clamp
US9290367B2 (en) * 2013-06-17 2016-03-22 Cascade Corporation Tissue roll-handling clamp
CN104477818A (en) * 2014-11-28 2015-04-01 浙江上加机械有限公司 Mechanical holding arm device for carrying scroll
US10017366B2 (en) 2016-04-01 2018-07-10 Cascade Corporation Clamp having a load-clamping hydraulic cylinder with multiple telescopically extensible stages adapted to apply load clamping force alternatively responsive to load-lifting force or load size
CN109132957A (en) * 2018-10-17 2019-01-04 合肥搬易通科技发展有限公司 A kind of door frame jack up unit with clamp system

Similar Documents

Publication Publication Date Title
US3896957A (en) Roll clamp
US4279347A (en) Anti-sway load handling apparatus
US2596477A (en) Lift truck grab arm mechanism for cylindrical bodies
US4473237A (en) Vehicle lift and tow bar
US3819075A (en) Device for loading a skip on to a vehicle
NO130186B (en)
US3685673A (en) Side-loading self-propelled material transporting device
US4024968A (en) Heavy lift side loader truck
US2925887A (en) Material handling truck
US4201511A (en) Device for handling containers
GB1223319A (en) Apparatus for lifting and transporting logs
US3726421A (en) Loading and unloading device
US4636131A (en) Side shifter and narrow aisle attachment for a lift truck
US3767250A (en) Load handling means
JPS62500232A (en) Vehicle cargo hold lifting and lowering device
US3603464A (en) Undercarriage trailer for handling and transporting elongated bodies
US3514002A (en) Antiracking container lift frame
JPS62500863A (en) combination track
US3484003A (en) Hydraulic loading apparatus
US3613906A (en) Drill stem storage and handling mechanism
US4385862A (en) Reel loader
US5551831A (en) Method and apparatus for elevating a cargo container chassis for storage
US6099227A (en) Telescoping flat bed gripping and lift assembly
US3874528A (en) Vehicle mounted loader for handling concrete castings
JPS58197192A (en) Hydraulic type lifting gear for assembling crane jib

Legal Events

Date Code Title Description
AS Assignment

Owner name: LONG REACH MANUFACTURING CO. A CORP. OF DE.

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:ANDERSON, CLAYTON & CO., A CORP. OF DE.;REEL/FRAME:004437/0009

Effective date: 19850630

AS Assignment

Owner name: LONG REACH HYDRAULICS CORPORATION, 345 MERCHANDISE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:LONG REACH MANUFACTURING CO., A DE CORP.;REEL/FRAME:004681/0486

Effective date: 19861231

AS Assignment

Owner name: GLENFED FINANCIAL CORPORATION, A CORP. OF CA., NEW

Free format text: SECURITY INTEREST;ASSIGNOR:LONG REACH HYDRAULIC CORPORATION, A CORP. OF DE;REEL/FRAME:005019/0312

Effective date: 19870917

AS Assignment

Owner name: UNION CARBIDE CORPORATION, OLD RIDGEBURY ROAD, DAN

Free format text: SECURITY INTEREST;ASSIGNOR:LONG REACH HYDRAULICS CORPORATION, A CORP. OF DE;REEL/FRAME:004776/0689

Effective date: 19870917

Owner name: UNION CARBIDE CORPORATION, A CORP. OF NEW YORK,CON

Free format text: SECURITY INTEREST;ASSIGNOR:LONG REACH HYDRAULICS CORPORATION, A CORP. OF DE;REEL/FRAME:004776/0689

Effective date: 19870917

AS Assignment

Owner name: SECURITY PACIFIC BUSINESS CREDIT INC., 228 EAST 45

Free format text: SECURITY INTEREST;ASSIGNOR:LONG REACH HYDRAULICS CORPORATION (A DE. CORP.);REEL/FRAME:004818/0972

Effective date: 19870917

Owner name: SECURITY PACIFIC BUSINESS CREDIT INC., A DE. CORP.

Free format text: SECURITY INTEREST;ASSIGNOR:LONG REACH HYDRAULICS CORPORATION (A DE. CORP.);REEL/FRAME:004818/0972

Effective date: 19870917

AS Assignment

Owner name: GLENFED FINANCIAL CORPORATION, CALIFORNIA

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:LONG REACH HYDRAULICS CORPORATION;REEL/FRAME:006444/0525

Effective date: 19921218

Owner name: SECURITY PACIFIC BUSINESS CREDIT, INC., NEW YORK

Free format text: TERMINATION OF PATENT COLLATERAL ASSIGNMENT;ASSIGNOR:LONG REACH HYDRAULICS CORPORATION;REEL/FRAME:006452/0738

Effective date: 19921218