US3782712A - Toggle clamp with detent open guided arm - Google Patents

Toggle clamp with detent open guided arm Download PDF

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Publication number
US3782712A
US3782712A US00292877A US3782712DA US3782712A US 3782712 A US3782712 A US 3782712A US 00292877 A US00292877 A US 00292877A US 3782712D A US3782712D A US 3782712DA US 3782712 A US3782712 A US 3782712A
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US
United States
Prior art keywords
handle
arm
latch
pivot
plates
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
US00292877A
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English (en)
Inventor
L Blatt
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.)
ISI MANUFACTURING Inc A MI CORP
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of US3782712A publication Critical patent/US3782712A/en
Assigned to ISI MANUFACTURING, INC., A MI CORP. reassignment ISI MANUFACTURING, INC., A MI CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BLATT, LELAND D. AND BLATT, ELAINE E., TRUSTEES OF THE L.F BLATT U/TA APRIL 12, 1977
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B5/00—Clamps
    • B25B5/06—Arrangements for positively actuating jaws
    • B25B5/12—Arrangements for positively actuating jaws using toggle links

Definitions

  • a toggle clamp comprises a pivot base mountable upon a support with a pair of side plates adjustably mounted upon said pivot base in a pre-selected angular position and guidably receiving therebetween a pivot arm pivotally mounted upon said plates and terminating in a work piece engaging clamp arm.
  • a U- shaped handle link with a laterally extending handle is pivotally mounted over and upon the guide plates and pivotally mounts interiorly a pair of arm links at their one ends, with the other ends of said arm links pivotally connected to the handle link.
  • a yieldable latch is positioned between the arm links and pivotally connected thereto and adapted to interlock with a latch pin spanning said guide plates when the handle has been moved to a release position.
  • Toggle clamps are known to include upon a base a pivotal clamp arm with a suitable handle link pivotally mounted upon a base with additional links pivotally mounting additional linkage which pivotally engages a clamp arm for moving the same from work piece securing position to a retracted work piece release position.
  • the present invention is directed to an improved toggle clamp construction which includes a yieldable latch mounted upon the handle link assembly adapted for interlocking relation with respect to a stationary latch pin for yieldably holding the handle link and handle in clamp release position.
  • the handle link pivotally mounted at said first pivot point is by a toggle linkage pivotally connected at third and fourth pivot points respectively to a clamping arm which is pivoted to-the guide plates at a second pivot point.
  • FIG. 1 is a fragmentary side elevational view of the present toggle clamp with the release position of the handle and clamp arm and associated parts shown in dash lines;
  • FIG. 2 is a left end elevational view thereof.
  • the present toggle clamp 11 includes apivot base 13 anchored by fasteners 15 to a suitable support F or fixture or mounting surface as fragmentarily shown, FIG. 1, and supporting work piece W.
  • a pair of upright opposed and spaced guide plates 17 and 19 each having corresponding arcuate end faces 21 is pivotally mounted initially by pivot pin 41 or bolt upon opposite sides of the base 13 and affixed thereto in the desired position of angular adjustment by the welds 63.
  • An opposed pair of notches 23 are in the illustrative embodiment arranged in an are at the positions of 30, and C Transversely arranged latch pin 25 is selectively positioned within the desired corresponding pair of notches and secured in position by the welds 27.
  • the pin has been located at the 190 notches so as to yieldably retain the handle assembly when it has been moved to the retracted release position shown in dotted lines, FIG. 1.
  • Pivot arm 29 is guidably and movably positioned between plates 17 and 19 and pivotally mounted thereon upon the pivot pin 33 with bushing 31 interposed and nested within an end portion of said pivot arm.
  • Pivot arm extends laterally outward from said guide plates and terminates in the elongated clamp arm 35 shown in operative clamping position with respect to work piece W upon the support F, FIG. 1.
  • the inverted U-shaped handle link 37 is guidably positioned over opposite outer surfaces of the plates 17 and 19 and at their lower ends, pivotally mounted upon the bolt 41 which is hereafter referred to as a first pivot point.
  • the pivotal mounting of the pivot arm 29 as at 33 is referred to as a second pivot point.
  • the upper or free end of the handle link 37 terminates in the upright handle 39 as it would normally be positioned with the clamp arm 35 in work piece securing position.
  • the bolt 41 which serves as the first pivot point is anchored upon the slide plates 17 and 19 with a suitable nut 43 shown in FIG. 2.
  • a pair of spaced arm links 45, 47 are arranged upon the interior of the handle link coplanar with the respective guide plates 17 and 19 and pivotally connected to the handle link by transverse pin 49.
  • Latch 51 is interposed between said arm links at their upper ends and pivotally mounted on the same pivot pin 49. This is the third pivot point.
  • the lower ends of the arm links engage opposite sides of the pivot arm 29 and are pivotally connected thereto by the transverse pin 53 referred to as the fourth pivot point.
  • Latch 51 upon one side has a lateral projection or stop 55 adapted to bear against a portion of the handle link 37 under the bias of the coil spring 57 nested within socket 59 in said latch and at its opposite end bears against a portion of the handle link.
  • the transverse notch 61 formed in the outer surface of the latch upon retraction of the handle 39 to a clamp arm release position, is adapted for selective registry with the latch pin 25 which spans an opposed pair of edgenotches 23 as shown in FIG. 1.
  • latch pin 25 could be selectively positioned with any one of the other angularly In the work securing position shown in FIG. 1, pivot point 3, at 49 has moved across dead center with respect to pivot points 1 and 4; namely, the pivots 41 and 53 of FIG. 1 when the clamp arm 35 is in its effective work piece securing position.
  • This angular movement of retraction of the clamp arm can be set at 150 or 120 or any of the other angles designated in the drawing, depending upon the pre-selection of the location of the latch pin 25 and its securing to and spanning the guide plates 17 and 19.
  • a toggle clamp comprising a pivot base mountable upon a support
  • a pivot arm guidably positioned between said plates and at one end pivotally mounted upon said plates and terminating in a clamp arm adapted to retainingly engage a work piece on said support;
  • said handle link terminating in a handle
  • said latch having a transverse detent notch
  • a toggle clamp comprising a pivot base mountable upon a support
  • a pivot arm guidably positioned between and engaging said plates and at one end pivotally mounted at a second pivot point upon said plates adjacent their opposite side edges, and terminating in a clamp arm adapted to retainingly engage a work piece on said support;
  • said handle link terminating in a handle
  • said latch having a transverse detent notch
  • a latch pin transversely spanning and connected to the outer side edges of said guide plates
  • said latch notch on retracting movement of said handle yieldably receiving said pin anchoring the handle in a release position.
  • said guide plate outer side edges being arcuate at a fixed radius to said first pivot point; there being a series of opposed pairs of angularly spaced notches in said outer side edges; said latch pin being selectively nested and secured within one of said pairs of notches depending upon the desired arc of release retraction of said handle.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jigs For Machine Tools (AREA)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Clamps And Clips (AREA)
US00292877A 1972-09-28 1972-09-28 Toggle clamp with detent open guided arm Expired - Lifetime US3782712A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US29287772A 1972-09-28 1972-09-28

Publications (1)

Publication Number Publication Date
US3782712A true US3782712A (en) 1974-01-01

Family

ID=23126604

Family Applications (1)

Application Number Title Priority Date Filing Date
US00292877A Expired - Lifetime US3782712A (en) 1972-09-28 1972-09-28 Toggle clamp with detent open guided arm

Country Status (6)

Country Link
US (1) US3782712A (enrdf_load_stackoverflow)
JP (1) JPS4971653A (enrdf_load_stackoverflow)
DE (1) DE2341813A1 (enrdf_load_stackoverflow)
FR (1) FR2201166A1 (enrdf_load_stackoverflow)
GB (1) GB1369779A (enrdf_load_stackoverflow)
IT (1) IT991893B (enrdf_load_stackoverflow)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874647A (en) * 1973-01-26 1975-04-01 Leland F Blatt Toggle clamp with positive latch and clamp actuating handle
US3920234A (en) * 1974-03-01 1975-11-18 Leland F Blatt Vertical lift toggle clamp
US4212606A (en) * 1978-05-25 1980-07-15 Allied Chemical Corporation Quench stack reel assembly and clamping device
US4444379A (en) * 1982-01-11 1984-04-24 Fmc Corporation Trigger release clamp
US4504085A (en) * 1978-05-25 1985-03-12 Allied Corporation Reel assembly and clamping device
US4574381A (en) * 1982-09-30 1986-03-04 Metalworking Lasers International Ltd. Apparatus for establishing and maintaining a stable discharge across a stream of flowing gas, particularly useful for high-power lasers
DE9417667U1 (de) * 1994-11-08 1995-01-05 DE-STA-CO Metallerzeugnisse GmbH, 61449 Steinbach Spannvorrichtung

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054572A (en) * 1935-03-29 1936-09-15 Detroit Stamping Co Toggle clamp
US3149832A (en) * 1962-04-02 1964-09-22 Sta Co Corp De Toggle clamp with adjustable guide
US3311367A (en) * 1964-11-12 1967-03-28 Jack J Sendoykas Toggle clamp

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2054572A (en) * 1935-03-29 1936-09-15 Detroit Stamping Co Toggle clamp
US3149832A (en) * 1962-04-02 1964-09-22 Sta Co Corp De Toggle clamp with adjustable guide
US3311367A (en) * 1964-11-12 1967-03-28 Jack J Sendoykas Toggle clamp

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3874647A (en) * 1973-01-26 1975-04-01 Leland F Blatt Toggle clamp with positive latch and clamp actuating handle
US3920234A (en) * 1974-03-01 1975-11-18 Leland F Blatt Vertical lift toggle clamp
US4212606A (en) * 1978-05-25 1980-07-15 Allied Chemical Corporation Quench stack reel assembly and clamping device
US4504085A (en) * 1978-05-25 1985-03-12 Allied Corporation Reel assembly and clamping device
US4444379A (en) * 1982-01-11 1984-04-24 Fmc Corporation Trigger release clamp
US4574381A (en) * 1982-09-30 1986-03-04 Metalworking Lasers International Ltd. Apparatus for establishing and maintaining a stable discharge across a stream of flowing gas, particularly useful for high-power lasers
DE9417667U1 (de) * 1994-11-08 1995-01-05 DE-STA-CO Metallerzeugnisse GmbH, 61449 Steinbach Spannvorrichtung

Also Published As

Publication number Publication date
DE2341813A1 (de) 1974-04-04
IT991893B (it) 1975-08-30
JPS4971653A (enrdf_load_stackoverflow) 1974-07-11
GB1369779A (en) 1974-10-09
FR2201166A1 (enrdf_load_stackoverflow) 1974-04-26

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ISI MANUFACTURING, INC., A MI CORP., MICHIGAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BLATT, LELAND D. AND BLATT, ELAINE E., TRUSTEES OF THE L.F BLATT U/TA APRIL 12, 1977;REEL/FRAME:005002/0465

Effective date: 19880901