US2793065A

US2793065A - Handling device for sheet material

Info

Publication number: US2793065A
Application number: US451247A
Authority: US
Inventors: Oscar M Mccurry
Original assignee: Individual
Current assignee: Individual
Priority date: 1954-08-20
Filing date: 1954-08-20
Publication date: 1957-05-21
Anticipated expiration: 1974-05-21

Description

May 21, 1957 o. M. MCCURRY HANDLING DEVICE EOE SHEET MATERIAL Filed Aug. 2o, 1954 INVENTOR United States PatentO Mice HANDLING DEVICE FOR SHEETMATERIAL Oscar M. McCurry, Sutter, Calif.

Application August 20, 1954, Serial No. '451,247

1 Claim. (Cl. 294-16) This invention relates to a novel device of extremely simple construction capable of being readily applied to sheet material, such as wallboard, glass, metal or the like, to provide a handle by means of which said material may be readily and conveniently carried and which is secured to the material by a lifting force applied to a handle part thereof.

More particularly, it is an aim of the present invention to provide a carrying or handling device including clamping jaws which are moved into clamping engagement with opposite sides of a piece of sheet-like material by a lifting force applied to the handle part and which will be effectively maintained in gripping engagement with the material by the weight thereof which is borne by the handle part while lifting and carrying the material.

Another object of the invention is to provide a device of the aforedescribed character of extremely simple con struction which is capable of being quickly applied to or removed from a piece of sheet material, and which will be extremely eicient and durable for accomplishing its intended results.

Various other objects and advantages of the invention will hereinafter become more fully apparent from the following description of the drawing, illustrating a presently preferred embodiment thereof, and wherein:

Figure 1 is an end elevational view of the handling device shown in a released position relatively to a piece of material to be clamped thereby;

Figure 2 is a side elevational view thereof, and

Figure 3 is a cross sectional view of the device taken substantially along a plane as indicated by the line 3--3 of Figure 2.

The handling device in its entirety and comprising the invention is designated generally 5 and includes a pair of

corresponding clamping members

6 and 7. Said clamping

members

6 and 7 each preferably comprise an elongated piece of angle iron or other similar element of angular cross section having complementary sides 6a and 7a, respectively, which are disposed in spaced apart substantially parallel relation to one another. The other sides 6b and 7b of the

clamp members

6 and 7, respectively, project outwardly from complementary longitudinal edges of the sides 6a and 7a in directions away from one another and are disposed substantially coplanar, as seen in Figures 1 and 3.

The

members

6 and 7 are connected adjacent their ends by a pair of links 8 and 9. Each of the links is pivotally connected adjacent one end thereof by a rivet or similar fastening 10 to the side 6b and by a similar fastening 10, adjacent its opposite end, to the side 7b. The links 8 and 9 are disposed for swinging movement against outer faces of the sides 6b and 7b and which are located remote from the sides 6a and 7a.

A lever 11 has one end disposed transversely across the outer faces of the sides 6b and 7b, substantially midway between the links 8 and 9, and is pivotally connected to said sides by additional rivets or similar fastenings 10 which are spaced apart a distance corresponding to 2,793,065 Patented May 21, 41957 projects laterally a substantial distance from one of zthe'sides 6b or 7b, said lever being shown projecting 5 loutwardly from the side 7b in the embodiment ofthe -`inventionas illustrated. The overalll length ofthe lever `11 is preferably about twice the length of the links `8 and-9 Vbut `rnayvbe of Aa greater length Yor a slightly `lesserlength, if desired. A handlelZ Visconnected to and projects 'laterally `from one side of `the lever 11, fadjacent-Hits `outer end, and preferably extends from the sarneside thereof whichis disposed againstthe sidesb Vand 7b,so thatthe handle 12 is disposed gon-the same side ofthe leverll -as the

clamping members

6 and 7. Thelhandle 12 may `conjiprise-a sleeve 13:` which ist turn- 'ablytlisposed onai-roddor shaft114t which extends through an opening 15 adjacent the outer end of the lever 11 and which has headed ends 16, one of which is formed thereon after the rod or shaft has been passed through the sleeve 13 and lever 11.

Elongated cushioning and gripping strips 17 are disposed against and secured to the inner faces of the jaw members 6a and 7a and preferably extend from end-toend thereof and are of a width corresponding to the width of said jaw members.

Figures 1 and 2 show the clamping jaws 6a and 7a straddling a vertical edge of a portion of a sheet member 18 and with the links 8 and 9 and lever 11 disposed transversely of said

jaw members

6 and 7, so that the clamp members are spaced a maximum distance apart for loosely straddling a portion of the sheet member 18. With the handling device 5 thus disposed, the handle 12 is-gripped and an upward lifting force applied therej to. This will cause the lever 11 to swing upwardly about its pivot 10 which engages the side 6b as a fulcrum and which will cause the clamp member 7 to be displaced upwardly and inwardly toward the clamp member 6. In a like manner, the links 8 and 9 will be swung upwardly relatively to the clamp member 6 so that the clamp member 7 will be swung upwardly and inwardly reatively to the clamp member 6 from end-to end thereof to cause a portion of the sheet-like member 18 which is disposed between the jaws 6a and 7a to be gripped between the cushioning strips 17 thereof. The greater the lifting force thus applied to the handle 12, the greater will be the gripping engagement of the jaws 6a and 7a with the sheet material 18, so that the sheet material can be readily lifted with the handling device 5 by a lifting force applied to the handle 12. The heavier the sheet material 18 is, the greater will be the gripping engagement of the cushioned jaw faces 17 therewith to effectively prevent slippage of the handling device 5 relatively to the material 18. It will be obvious that a second handling device 5 may be similarly engaged with the other vertical edge of the sheet material 18 for handling and carrying large and heavy pieces.

For smaller and lighter pieces capable of being handled by one man, the sheet-like material 18 may be disposed at an incline and the jaws 6a and 7a applied to a yside edge portion adjacent an upper end of the inclined sheet material and with the handle 12 disposed thereabove. A lifting action on the handle 12 will then maintain the jaw faces 17 in tight gripping engagement with the sheet material 18, since the preponderance of the weight of the material 18 will be below the handling device 5, and the material 18 may then be carried by one man utilizing a single handling device 5.

Various modifications and changes are contemplated and may obviously be resorted to, without departing from the spirit or scope of the invention as hereinafter defined by the appended claim.

I claim as my invention: A

A handling device of the character described compris ing a pair of elongated angle iron clamp members having spaced apart substantially parallel sides dening clamping faces and other substantially coplanar sides extending from said parallel sides, link members, means pivotally connecting each of said link members to vthe coplanar sides of both clamp members remote from the clamping faces for supporting the clamp members relative to one another in spaced apart substantially par- Y allel relation, said handling device including a link member .disposed adjacent each end thereof and an interv mediatelink member disposed between and equally spaced from the lirst mentioned end link members, said intervmediate link member having anA extension at one end thereof forming a lever, said clamping, faces being adapted to straddle a portion of a sheet-like member, and

, an elongated handle connected to and projecting perpendicularly from one side of theleVer extension and remote from the clamp members, said handle being disposed on the same side of the lever extension as the clamp members, said handle being adapted to be grasped for swinging said lever extension longitudinally of the clamp members and in an upward direction for swingably moving the clamp member located adjacent said handle longitudinally of and toward the other clamp member for moving the clamping faces into gripping engagement with opposite sides of the sheet-like member for gripping and lifting the sheet-like member.

References Cited in the le of this patent UNITED STATES PATENTS van