US3476360A - Quick pry tools - Google Patents

Quick pry tools Download PDF

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Publication number
US3476360A
US3476360A US641584A US3476360DA US3476360A US 3476360 A US3476360 A US 3476360A US 641584 A US641584 A US 641584A US 3476360D A US3476360D A US 3476360DA US 3476360 A US3476360 A US 3476360A
Authority
US
United States
Prior art keywords
wedge
article
tool
pry
shaft
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
US641584A
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English (en)
Inventor
Raymond L Renfroe
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.)
J C Renfroe and Sons Inc
Original Assignee
J C Renfroe and Sons Inc
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 J C Renfroe and Sons Inc filed Critical J C Renfroe and Sons Inc
Application granted granted Critical
Publication of US3476360A publication Critical patent/US3476360A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G7/00—Devices for assisting manual moving or tilting heavy loads
    • B65G7/12—Load carriers, e.g. hooks, slings, harness, gloves, modified for load carrying
    • 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
    • Y10S414/10—Associated with forming or dispersing groups of intersupporting articles, e.g. stacking patterns
    • Y10S414/109—Manual step utilized

Definitions

  • the wedge and driving members cooperate to provide a lever arm for prying the article away from the surface after yinsertion of the wedge.
  • the wedge member includes means to support the article in a desired inclined position on the supporting surface while an operation such as attachment of a lifting clamp is performed on the article.
  • This invention is comprised of a wedge member and to a tool assembly for wedging and prying one or more articles away from a supporting surface and retaining said article in a desired inclined position on said surface.
  • This invention is comprised of a wedge member and a driving member cooperatively disposed in telescoping relation.
  • the wedge member includes a wedge ele-ment which is insertable between an article and its supporting surface by a driving force transferred thereto by a repeated striking action of the driving member against the wedge member.
  • the article may be initially separated from the surface by a wedging action to slightly incline the article relative to the surface.
  • the inclination of the article may then be increased by employing the members as a lever arm to pry the article upwardly from the surlface.
  • the wedge element has means thereon for supporting an edge of the article to retain the article in the upwardly pried position until a lifting clamp is attached or some other operation performed.
  • driving and wedge members may be employed as a lever arm or pry bar to increase the inclination of said article by rotating the wedge element about its apex to a generally upright position thereby increasing the spacing between the surface and the article.
  • FIGURE 1 is a side elevational view showing the tool with the lwedge element of the wedge member inserted between the upper plate and the adjacent plate of a stack of steel plates.
  • FIGURE 2 is a side elevational view showing the tool in a generally upright position with the inclination of the upper plate increased by the prying action of the tool, said article being supported on a shoulder formed on the wedge element.
  • FIGURE 3 is a fragmentary, longitudinal, sectional view through the tool showing the telescoping relation of the driving member and the wedge member with the driving member in striking relation to the wedge -member for transfer of a driving force to said wedge member.
  • the reciprocal action of the driving member is illustrated in broken lines showing the driving member drawn back to a desired position prior to its thrust forward to impart a driving force to the wedge member.
  • FIGURE 4 is a fragmentary perspective view of the tool illustrating the construction of the wedge element particularly the supporting shoulders defined by opposed recesses on the opposite wedge surfaces of said wedge element.
  • the reference numeral 1 refers generally to a quick pry tool embodying the features of this invention.
  • the pry tool is broadly comprised of a driving member 2 and a wedge member 4.
  • the members 2 and 4 are assembled in telescoping relation and are reciprocally movable in the direction of their longitudinal axis whereby said driving member 2 may be reciprocally driven by hand to effect a repeated impact striking or engagement of said wedge member 4 thereby transferring a lforward driving force thereto for insertion of said wedge member 4 between an article and a supporting surface.
  • the telescoping relation of the members 2 and 4 may be reversed from that illustrated whereby the driving member 2 is received in )a passage in the wedge member 4.
  • the driving member 2 is comprised of a sleeve or tubular structure 6 defining an interior passage or chamber 8.
  • the passage 8 is closed at its rearward end portion by a cap 10 which is securely mounted to the sleeve 6.
  • the forward end of the passage 8 is partially restricted by a cap 12 which is threadingly engaged to the sleeve 6.
  • the cap 12 defines an axial bore 14 through which a portion of the wedge member 4 is received.
  • the wedge member 4 includes a wedge element 16 securely mounted to a shaft 18 by the pin 20.
  • the shaft member 18 has a diameter slightly less than the through bore 14 in the cap 12 whereby the driving member 2 may be reciprocally moved relative to the shaft 18.
  • the shaft 18 has an enlarged portion, illustrated herein as a retainer 22, circumferentially disposed about the shaft 18.
  • the retainer 22 is mounted on the shaft 18 by suitable means such as a top screw or connecting pin.
  • the retainer 22 has an outer diameter greater than the diameter of the through bore 14 whereby the retainer 22 once inserted within the passage ⁇ 8 cannot be removed or separated from said chamber 8 Without disengaging the threaded cap 12.
  • the retainer 22, therefore limits the relative axial movement of members 2 and 4 in a direction opposite that of the movement toward said impact engagement of said members 2 and 4.
  • the driving member 2 and the wedge member 4 are provided with cooperative means defining abutment surfaces whereby the driving force imparted to the driving member 2 may be transferred to the wedge member 4 by the impact striking of the abutment surfaces.
  • the cap 10 defines an abutment surface 24 adapted for repeated striking engagement with the rearward end surface 26 of the shaft 18 to effect a force transfer.
  • the sleeve 6 preferably has a knurled portion 27 to provide a firm gripping surface for a manual reciprocal driving movement of the driving member 2.
  • the wedge element 16 has conventional wedge surfaces 28 and 30 in opposed relation inclined inwardly to an apex 32.
  • Each of the surfaces 28 and 30 has a transversely extending recess 34 defining a pair of opposed supporting shoulders 36.
  • the shoulders 36 support an edge portion of an article such as a steel plate when the tool 1 is pivoted about the apex 32 of the wedge element 16 to place the tool 1 in a generally upright position as illustrated in FIGURE 2.
  • the assembly of the tool 1 is accomplished by first placing shaft 18 through the bore 14 in the cap 12 and then securing the retainer 22 to the rearward end of the shaft 18. Shaft 18 and retainer 22 are then inserted into the passage 8. The cap 12 is then threadingly engaged to the sleeve 6 completing the assembly of the tool 1.
  • the Wedge element 16 is illustrated in a partially inserted position between an upper plate 40 and an adjacent plate 42 of a stack of steel plates 44.
  • the driving member 2 is reciprocally driven to effect repeated force transfer to the member 4 to drive the wedge element 16 between the plates 40 and 42 thereby obtaining an initial inclination and separation of the plate 40 from the plate 42.
  • the tool 1 is illustrated in a generally upright position to which it is rotated after insertion of the wedge element 16 between the plates 40 and 42.
  • This rotation of the tool 1 is effected by the employment of the members 2 and 4 as a lever arm to pivot the wedge element 16 about its apex 32 to increase the inclination of the plate 40 thereby providing sufiicient spacing between plates 40 and 42 for connection of a lifting clamp to the steel plate 40.
  • the edge portion ⁇ 46 ofthe plate 40 is supported by the shoulder 36 and disposed within therecess 34 of the wedge ⁇ element 1'6. In this manner, the plate 40 may -be retained in its inclined position by support on the shoulder 36 until the lifting clamp is securely attached to the plate 40 or some other operation is performed.
  • the position of the driving member 2 relative to the shaft 18 of the wedge member 4 determines the length of the lever arm formed by the members 2 and 4. Therefore, when heavier plates are encounteredhthe driving member 2 may be withdrawn rearwardly from'the wedge element 16 thereby increasing the length of the lever arm and correspondingly reducing the force required for lifting the plate 40.
  • a pry tool for separating an article from a surfac comprising:
  • an elongated pry bar lever including first and second members each extending longitudinally in telescoping relation and being reciprocally movable axially relative to the other,
  • a pry tool as recited in claim 1 wherein saidfirst member is comprised of an axially extending shaft having opposed end portions with said 'wedge mounted-on one end portion and said other end portion defining an abutment surface and wherein said second member is cornprised of an axially extending sleeve defining a passage therethrough in which the shaft of said first member is received in telescoping relation, said second -member having opposed end portions with means closing one'of said end portions'and defining an abutment surface for striking engagement with the abutmentsurface of said first member.
  • a pry tool as recited in claim 3 wherein said bore defining means is comprised of a cap in threaded engagement with said sleeve of said second member, -said cap defining said bore axially therethrough ⁇ to receiveuthe shaft of said first member.
  • a pry tool as recited in claim 1 wherein said wedge has a pair of opposed wedge surfaces at least one of said surfaces defining a transversely extending recess spaced from the apex of said wedge and said abutment surfaces to provide a shoulder for supporting an edge of said article when the wedge is pivoted from its wedging position to a generally upright position, said recess being defined by a first surface on the apex side of said recess disposed in a plane substantially normal to said first direction and an opposite concave surface spaced from said rst surface and generally inclined away from said apex.
  • each of said wedge surfaces defines said transversely extending recess spaced from the apex and said abutment surfaces to provide a pair of shoulders on opposite sides of said wedge.

Landscapes

  • Sheets, Magazines, And Separation Thereof (AREA)
  • Portable Nailing Machines And Staplers (AREA)
  • Load-Engaging Elements For Cranes (AREA)
US641584A 1967-05-26 1967-05-26 Quick pry tools Expired - Lifetime US3476360A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64158467A 1967-05-26 1967-05-26

Publications (1)

Publication Number Publication Date
US3476360A true US3476360A (en) 1969-11-04

Family

ID=24572994

Family Applications (1)

Application Number Title Priority Date Filing Date
US641584A Expired - Lifetime US3476360A (en) 1967-05-26 1967-05-26 Quick pry tools

Country Status (5)

Country Link
US (1) US3476360A (cs)
BE (1) BE715622A (cs)
FR (1) FR1565982A (cs)
GB (1) GB1225312A (cs)
NL (1) NL156983B (cs)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930585A (en) * 1974-05-20 1976-01-06 Lynch Jack M Coil lifting apparatus and method
US3991893A (en) * 1974-05-20 1976-11-16 Lynch Jack M Coil lifting apparatus and method
US20100127226A1 (en) * 2008-11-21 2010-05-27 David Carl Smith Pry bar with adjustable and lockable arms
US20100194129A1 (en) * 2009-02-03 2010-08-05 9155-0020 Quebec Inc. Separator for pulling off stacked packaging sheets with embossed cavities
US20230159157A1 (en) * 2021-11-22 2023-05-25 Gulfstream Aerospace Corporation Nose landing gear adjustment tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2218056A (en) * 1988-02-24 1989-11-08 Joseph Conrad Mullan Hand tool

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US840580A (en) * 1906-07-31 1907-01-08 Marion Alison Mcmillan Combined nail-puller and band-cutter.
US948230A (en) * 1909-03-24 1910-02-01 Frank Toussaint Lestage Combined box-opener and nail-puller.
US3219316A (en) * 1964-05-14 1965-11-23 Fried Emanuel Forcible entry tool

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US840580A (en) * 1906-07-31 1907-01-08 Marion Alison Mcmillan Combined nail-puller and band-cutter.
US948230A (en) * 1909-03-24 1910-02-01 Frank Toussaint Lestage Combined box-opener and nail-puller.
US3219316A (en) * 1964-05-14 1965-11-23 Fried Emanuel Forcible entry tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3930585A (en) * 1974-05-20 1976-01-06 Lynch Jack M Coil lifting apparatus and method
US3991893A (en) * 1974-05-20 1976-11-16 Lynch Jack M Coil lifting apparatus and method
US20100127226A1 (en) * 2008-11-21 2010-05-27 David Carl Smith Pry bar with adjustable and lockable arms
US8342482B2 (en) * 2008-11-21 2013-01-01 David Carl Smith Pry bar with adjustable and lockable arms
US20100194129A1 (en) * 2009-02-03 2010-08-05 9155-0020 Quebec Inc. Separator for pulling off stacked packaging sheets with embossed cavities
US20230159157A1 (en) * 2021-11-22 2023-05-25 Gulfstream Aerospace Corporation Nose landing gear adjustment tool

Also Published As

Publication number Publication date
FR1565982A (cs) 1969-05-02
NL156983B (nl) 1978-06-15
GB1225312A (cs) 1971-03-17
DE1756413A1 (de) 1970-04-02
NL6807326A (cs) 1968-11-27
BE715622A (cs) 1968-10-16

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