US2799891A - Deck lid counterbalance and hold-open - Google Patents

Deck lid counterbalance and hold-open Download PDF

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US2799891A
US2799891A US350703A US35070353A US2799891A US 2799891 A US2799891 A US 2799891A US 350703 A US350703 A US 350703A US 35070353 A US35070353 A US 35070353A US 2799891 A US2799891 A US 2799891A
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Prior art keywords
hinge
rod
counterbalance
strap
open
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US350703A
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La Verne B Ragsdale
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Motors Liquidation Co
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Motors Liquidation Co
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    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05FDEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
    • E05F1/12Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/123Mechanisms in the shape of hinges or pivots, operated by springs with a torsion bar
    • E05F1/1238Mechanisms in the shape of hinges or pivots, operated by springs with a torsion bar specially adapted for vehicles
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05YINDEXING SCHEME RELATING TO HINGES OR OTHER SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS AND DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION, CHECKS FOR WINGS AND WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05Y2900/00Application of doors, windows, wings or fittings thereof
    • E05Y2900/50Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/548Trunk lids
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T16/00Miscellaneous hardware [e.g., bushing, carpet fastener, caster, door closer, panel hanger, attachable or adjunct handle, hinge, window sash balance, etc.]
    • Y10T16/52Hinge
    • Y10T16/538Resiliently biased hinge
    • Y10T16/5389Resiliently biased hinge torsion spring

Description

July 23, 1957 LA VERNE B. RAGSDALE 2,799, 9

DECK LID COUNTERBALANCEI AND HOLD-OPEN Filed April 23, 1953 2 Sheets-Sheet l INVENTOR BY fag /QTTORNEY y l957 LA VERNE B. RAGSDALE 2,799,

DECK LID COUNTERBALANCE AND HOLD-OPEN Filed April 23, 1953 2 Sheets-Sheet 2 I k ii INVENTOR 7 :a Vezw/Zfigamzk United States Patent DECK LID COUNTERBALAN CE AND HOLD-OPEN La Verne B. Ragsdale, Dearborn, Mich., assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Application April 23, 1953, Serial No. 350,703

6 Claims. (Cl. 16-480) This invention relates to a deck lid hinge and counterbalance, and more particularly to a torque rod deck lid hinge and counterbalance for an automobile.

One feature of the invention is that it provides an improved deck lid hinge and counterbalance; another feature of the invention is that it provides a counterbalance in the form of a U-shaped torque rod having its ends mounted on the hinge box with one end connected to the hinge strap, the rod being twisted when the deck lid is closed to provide a'torque force urging the deck lid open; a further feature of the invention is that the torque rod is formed with a crank portion which is pivotally connected to one of the hinge elements; still another feature of the invention is that the crank portion forms one link of a pair of toggle links connected between the hinge box and the hinge strap; yet another feature of the invention is that the toggle links include stop means for preventing the crank from twisting beyond a center position in alignment with the other toggle link; and yet another feature of the invention is that the folded torque rod has both of its ends mounted on the hinge box and has an offset portion forming a crank which is pivotally connected to the hinge strap through a toggle link.

Other features and advantages of the invention will be apparent from the following description and from the drawings, in which:

Fig. 1 is a top plan view of the rear portion of an automobile, portions of the body and deck lid being broken away to show the hinge and counterbalance structure;

Fig. 2 is an enlarged view of one of the folded torque rods;

Fig. 3 is an enlarged section taken along the line 33 of Fig. 1, the position of the parts when the deck lid is closed being'shown in solid lines and the position of the parts when the deck lid is open being shown in broken lines;

Fig. 4 is a section through the hinge box taken along the line 44 of Fig. 3, but with the hinge box removed from the automobile; and

Fig. 5 is a section through the hinge box taken along the line 55 of Fig. 3, but with the hinge box removed from the automobile.

Because of space limitations for the hinge and counterbalance structure in automobile trunks it has been found advantageous to use torque rod type counterbalance devices for the deck lid in place of bulky coil type springs. In the past these torque rod counterbalance devices have comprised straight rods having one end secured to a hinge member at one side of the automobile body and the other end secured to a hinge member at the other side of the automobile body. While this arrangement did not take the space required for coil springs, it had certain disadvantages in that it was necessary first to mount each hinge box assembly in the automobile and subsequently to install the torque rods, since each torque rod was connected to hinge members on opposite sides of the automobile body. Furthermore, the length available for the torque 2,799,891 Patented July 23, 1957 rod was definitely limited by the space between the hinges so that it was difficult to obtain the desired torque or operating characteristics, and in addition, when difierent styles of automobiles were manufactured, it was difiicult to obtain a standard torque rod arrangement which would be satisfactory for difierent automobiles having different size deck lids of varying Weights.

The improved counterbalance disclosed and claimed herein is in the form of a folded torque rod having both ends connected to one hinge box. Therefore, the entire hinge and counterbalance assembly can be made and put together before mounting it in the automobile body. Furthermore, since the torque rod is folded into the form of a U, there is approximately twice the space available, and torque rods almost twice as long as the straight rods formerly used can be provided. Because of this feature compensation can be made for variations in size and weight of the deck lid merely by using diiferent length torque rods since the entire available space is not used by the folded rod.

Referring nOW more particularly to the drawings, in Fig. 1 the rear portion of an automobile is shown as having rear quarter panels 10 and 11 formed with a trunk opening back of the rear window 12. A deck lid 14 is hingedly mounted to cover this opening. As shown in Fig. 3, an interior body wall 16 extends generally vertically below the rear window 12 of the automobile, this wall defining the upper front partition of the trunk compartment. At each side of the body a hinge is provided for mounting the deck lid 14 on the body, these hinges being designated generally at 18 and 20 in Fig. 1. As the hinges are similar, only one will be described in detail and the corresponding parts of the other hinge will be indicated by the same reference characters.

Each hinge comprises a hinge box which is fixedly mounted on the interior body wall 16, as by spotwelding as indicated at 22 in Fig. 3. The hinge box is formed of spaced parallel walls 24 and 26 which are joined at the bottom by a base 28. A second hinge member is formed as a gooseneck strap 30 which is pivotally mounted on the hinge box by a hinge pin 32, and which extends between the walls 24 and 26 of the hinge box and has its free end bolted to an inner panel 34 of the deck lid 14.

A counterbalance for each hinge is provided by an elongated torque or spring rod folded into the form of a U, each rod being designated generally at 36. As shown in Fig. 2, the U-shaped rod has two arms 38 and 44 of substantially the same length, the free end 40 of the arm 38 being bent substantially at right angles and terminating in an anchor hook portion 42. The arm 44 of the rod is formed adjacent its free end with a crank providing an oifset portion 46. An anchor bracket 48 is welded to the arm 24 of the hinge box and has a flange which extends outwardly from the hinge box andis formed with a groove 50 (Figs. 4 and 5) into which the anchor hook 42 is connected. A pivotal mounting for the free end of the arm 44 of the torque rod is provided by aligned openings 52 and 54 in the hinge box walls 24 and 26, the crank portion 46 of the torque rod being located between the walls 24 and 26.

A link 56 (Figs. 1 and 3) is articulated to the hinge strap 30 by means of a pin 58 at a point spaced from the hinge pin 32. As shown in Fig. 1, this link preferably is formed as a yoke comprising two similar stampings which are bent to straddle the hinge strap 30. At its base end the link 56 has a recess 60 in which the crank portion 46 of the torque rod seats to form a pivotal connection between the torque rod and the link, and a lug 62 projects from each stamping of the link, the face of each lug being adapted to abut the hinge strap 30 when the deck lid is open, as shown in Fig. 3.

prevent rattling.

When each torque rod 36 is assembled with its associated hinge elements the freeend 40 f the arm 38 is twisted as shown in broken lines in Fig. 2 to preload the rod so that torque will be exerted by the rod when the deckilid is open, and so that the rod will not fall oif the hinge bet-ore. assembly of the-parts inthe automobile body. The crank portion of the torque rod and th'elink '56 form a'pair of toggle links, andtheengagement ofthe'face of the lug 62 with the strap 30 when thedeck'iid is open prevents twisting of thecrank portion-oftherod beyonda center position in alignment with the link 56 and provides astop for opening movement-of the deck lid; I

The folded rods may overlap atLthe center of the automobile body and may be secured together-by-clips 64 to While l have shown and described one embodiment of 'my invention, it 'is capable of many modifications.

Changes, therefore, in the construction and arrangement may be made without departing fromthespirit and scope of the invention as set forth iii-the appended claims.

I claim: V v

1.. A hinge and counterbalance for a swinging lid .adaptedto' be moved to open and close an opening, comprising: a hinge box adapted to be located within a compartment and connected to a wall thereof, a-hinge strap adapted to be rigidly secured to a lid for said compartment, means hingedly mounting said strap on said hinge box to swing said lid between open and closed positions, an elongated spring rod folded into the form of a U, means anchoring one end of said rod tosaid hinge box, a crank adjacent the other end of said rod and providing an offset portion, a link having one end pivotally connected to said strap and having a recessed edge at its other end into which said ofiset portion seats, and a lug projectingifrom said one endof said link and engaging said hinge .strap pivotally connected to said strap and having a recessed edge at its other end into which said oifset portion seats, and a lug projecting from said one end of said link and engaging said hinge strap when said lid is opened a predetermined amount to prevent said crank of said rod from twisting beyond a dead center position in alignment with said link.

when said lid is opened a predetermined amount to pre- .vent said crank of said rod from twisting beyond adead center position in alignmentwith said link. 7

2. A hinge and counterbalance for a swinging lid. as defined by claim 1 wherein said link comprises two similar stampings secured together at their recessed ends and spaced'apart to straddle said hinge strap at'their pivotally connected ends.

3. A hinge and counterbalance for a swinging lid adapted to bemoved to open and close an opening,-comprising: a hinge box adapted to be located within'a compartment and connected to a wall thereof, ahinge strap adapted to be rigidly secured to a lid for said compartment, means hingedly mounting said strap on said hinge box to swing said lid-between open and closed positions, and elongated spring rod folded into the form of a' U, an anchor hook portion integral with said rod at "one .end thereof, a crank adjacent the other end of said rod and providing an offset portion, an anchor bracket secured to said hinge box and engaged by said hook portion to prevent rotation of said one end of said rod upon the application of force to said offset portion, a link having one end 4. A hinge and counterbalance means for a swinging lid adapted to be moved to open and close an opening, including: apair of hinges adjacent opposite sides of the opening comprising first and second hinge boxes adapted to be located within a compartment adjacent opposite sides thereof and connected to a wall thereof, first and second hinge straps adapted to be rigidly secured to a lid for said compartment and means pivotally connecting the first strap to the first box and the second strap to the second box; first and second elongated spring rods each folded into the form of a U and each having a crank adjacent oneendand providing an offset portion; means pivotallylconnecting said crank end of each rod to one of said hinge boxes; means anchoringthe otherend of each rod to the hinge box to which the crank end of the rod is connected; a first link pivotally connected to said first hinge strap and asecond linkpivotally connected to said second hinge strap; each of saidlinks having a recessed edge at its .free end; the ofiset portion of the rod .con-

nected to said first hinge boxbeing seated in the recessed edge of said first link, and the oifset portion-of the rod connected to said second hinge box being seated in the .recessed edge of said second link; each of said links further having lugs adjacent their pivotally connected ends and engaging their-associated hinge strap when saidlid is opened arpredetermined amount to prevent the crank portions of said rods from twisting beyond its dead center position in alignment with their associated links.

5. A hinge and counterbalance means for a swinging lid as defined by claim 4 wherein the folded portions of said rods overlap each other adjacent the center of the compartment and clip means securing the overlapping portions of said rods together,

6. A hinge and counterbalancemeans for a swinging lid as defined by claim 4 wherein each of said links comprises two similar stampings secured together at their recessed ends and spaced apart to straddle their associated hinge strap at their pivotally connected ends.

"References Cited in thefile of this patent UNITED STATES PATENTS 167,888 Fredenburgh Sept. 21,-1875 397,366 Jarrell Feb. 5,1889 481,798 Lodge Aug. 30, 1892 808,126 Van Wagoner-ct al. ..'Dec. 26, 1905 908,941 Boswell Ian. 5,1909 2,543,600 Roethel Feb. 27, 1951 2,688,764 Squire Sept. 14, 1954 2,707,799 Butterfield May 10, 1955

US350703A 1953-04-23 1953-04-23 Deck lid counterbalance and hold-open Expired - Lifetime US2799891A (en)

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Application Number Priority Date Filing Date Title
US350703A US2799891A (en) 1953-04-23 1953-04-23 Deck lid counterbalance and hold-open

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Application Number Priority Date Filing Date Title
US350703A US2799891A (en) 1953-04-23 1953-04-23 Deck lid counterbalance and hold-open
DE1954G0009269 DE1753905U (en) 1953-04-23 1954-04-22 Hinge with spring balancing for the trunk lid of motor vehicles.

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Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2947025A (en) * 1958-05-26 1960-08-02 Gen Motors Corp Hinge
US2955315A (en) * 1958-03-31 1960-10-11 Midwest Mfg Corp Refrigerator door stop
US2986770A (en) * 1960-05-19 1961-06-06 Ford Motor Co Torsion rod hinge
US3047180A (en) * 1958-04-16 1962-07-31 Daimler Benz Ag Balancing mechanism for a lid, more particularly for the lid of the luggage compartment or the motor compartment of a vehicle
US3065497A (en) * 1960-10-06 1962-11-27 Chrysler Corp Door hinge and integral check
US3153258A (en) * 1962-03-28 1964-10-20 Gen Motors Corp Counterbalancing hinge assembly
US3211494A (en) * 1962-03-19 1965-10-12 Gen Motors Corp Hinge stop
US4291501A (en) * 1978-02-24 1981-09-29 Bayerische Motoren Werke Aktiengesellschaft Device for counterbalancing a swivelable body part on a motor vehicle
US4580315A (en) * 1983-12-27 1986-04-08 General Motors Corporation Hinge assembly for compartment lid
US5393160A (en) * 1990-10-01 1995-02-28 Nhk Spring Co., Ltd. Torsion bar for slow-acting rotation shaft device
US5960519A (en) * 1998-03-25 1999-10-05 Midway Products Group, Inc. Vehicle rear lift gate hinge and counterbalance assembly
US5988724A (en) * 1997-08-15 1999-11-23 Wolda; Tiete O. Tailgate hinge mechanism
US6619723B2 (en) * 2001-01-09 2003-09-16 M & C Corporation Bed panel with torsion pin hinge
US6648398B2 (en) 2001-01-09 2003-11-18 M&C Corporation Bed panel with torsion pin hinge
US20040178651A1 (en) * 2003-03-12 2004-09-16 M & C Corporation Tailgate counterbalancing hinge
US20050179279A1 (en) * 2004-02-18 2005-08-18 Zagoroff Dimiter S. System for counterbalancing a tailgate
US20050200150A1 (en) * 2004-03-10 2005-09-15 M&C Corporation Tailgate counterbalancing hinge
US20060055197A1 (en) * 2004-09-10 2006-03-16 M&C Corporation Retrofit tailgate counterbalancing hinge
US20060214454A1 (en) * 2004-03-10 2006-09-28 M&C Corporation Tailgate counterbalancing hinge
US20060261634A1 (en) * 2005-05-20 2006-11-23 M & C Corporation Integrated torsion bar liftgate
DE10043931B4 (en) * 2000-09-06 2015-12-03 Volkswagen Ag hood hinge
US20160347379A1 (en) * 2015-05-27 2016-12-01 Ventra Group, Co. Tailgate counterbalance with dual torque rods

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US167888A (en) * 1875-09-21 Improvement in carriage-springs
US397366A (en) * 1889-02-05 jaeeell
US481798A (en) * 1892-08-30 Door-closer
US808126A (en) * 1903-09-30 1905-12-26 Wagoner Company Van Spring-hinge.
US908941A (en) * 1908-04-27 1909-01-05 Benjamin F Fritts Hinge.
US2543600A (en) * 1944-09-29 1951-02-27 Roethel Engineering Corp Deck lid hinge
US2688764A (en) * 1952-06-11 1954-09-14 Atwood Vacuum Machine Co Lid and hood hinge
US2707799A (en) * 1950-05-13 1955-05-10 Chrysler Corp Torsion bar hinge assembly

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US167888A (en) * 1875-09-21 Improvement in carriage-springs
US397366A (en) * 1889-02-05 jaeeell
US481798A (en) * 1892-08-30 Door-closer
US808126A (en) * 1903-09-30 1905-12-26 Wagoner Company Van Spring-hinge.
US908941A (en) * 1908-04-27 1909-01-05 Benjamin F Fritts Hinge.
US2543600A (en) * 1944-09-29 1951-02-27 Roethel Engineering Corp Deck lid hinge
US2707799A (en) * 1950-05-13 1955-05-10 Chrysler Corp Torsion bar hinge assembly
US2688764A (en) * 1952-06-11 1954-09-14 Atwood Vacuum Machine Co Lid and hood hinge

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2955315A (en) * 1958-03-31 1960-10-11 Midwest Mfg Corp Refrigerator door stop
US3047180A (en) * 1958-04-16 1962-07-31 Daimler Benz Ag Balancing mechanism for a lid, more particularly for the lid of the luggage compartment or the motor compartment of a vehicle
US2947025A (en) * 1958-05-26 1960-08-02 Gen Motors Corp Hinge
US2986770A (en) * 1960-05-19 1961-06-06 Ford Motor Co Torsion rod hinge
US3065497A (en) * 1960-10-06 1962-11-27 Chrysler Corp Door hinge and integral check
US3211494A (en) * 1962-03-19 1965-10-12 Gen Motors Corp Hinge stop
US3153258A (en) * 1962-03-28 1964-10-20 Gen Motors Corp Counterbalancing hinge assembly
US4291501A (en) * 1978-02-24 1981-09-29 Bayerische Motoren Werke Aktiengesellschaft Device for counterbalancing a swivelable body part on a motor vehicle
US4580315A (en) * 1983-12-27 1986-04-08 General Motors Corporation Hinge assembly for compartment lid
US5393160A (en) * 1990-10-01 1995-02-28 Nhk Spring Co., Ltd. Torsion bar for slow-acting rotation shaft device
US5988724A (en) * 1997-08-15 1999-11-23 Wolda; Tiete O. Tailgate hinge mechanism
US5960519A (en) * 1998-03-25 1999-10-05 Midway Products Group, Inc. Vehicle rear lift gate hinge and counterbalance assembly
DE10043931B4 (en) * 2000-09-06 2015-12-03 Volkswagen Ag hood hinge
US6619723B2 (en) * 2001-01-09 2003-09-16 M & C Corporation Bed panel with torsion pin hinge
US6648398B2 (en) 2001-01-09 2003-11-18 M&C Corporation Bed panel with torsion pin hinge
US20040178651A1 (en) * 2003-03-12 2004-09-16 M & C Corporation Tailgate counterbalancing hinge
US6796592B1 (en) 2003-03-12 2004-09-28 M & C Corporation Tailgate counterbalancing hinge
US7156441B2 (en) 2003-03-12 2007-01-02 M & C Corporation Tailgate counterbalancing hinge
US20050194808A1 (en) * 2003-03-12 2005-09-08 M & C Corporation Tailgate counterbalancing hinge
US7240946B2 (en) * 2004-02-18 2007-07-10 Zagoroff Dimiter S System for counterbalancing a tailgate
US20050179279A1 (en) * 2004-02-18 2005-08-18 Zagoroff Dimiter S. System for counterbalancing a tailgate
US7490888B2 (en) 2004-02-18 2009-02-17 Zagoroff Dimiter S System for counterbalancing a tailgate
US20080079282A1 (en) * 2004-02-18 2008-04-03 Zagoroff Dimiter S System for counterbalancing a tailgate
US7195300B2 (en) 2004-03-10 2007-03-27 M&C Corporation Tailgate counterbalancing hinge
US20050200150A1 (en) * 2004-03-10 2005-09-15 M&C Corporation Tailgate counterbalancing hinge
US20060214454A1 (en) * 2004-03-10 2006-09-28 M&C Corporation Tailgate counterbalancing hinge
US7281747B2 (en) 2004-03-10 2007-10-16 M&C Corporation Tailgate counterbalancing hinge
US7281746B2 (en) 2004-09-10 2007-10-16 M&C Corporation Retrofit tailgate counterbalancing hinge
US20060055197A1 (en) * 2004-09-10 2006-03-16 M&C Corporation Retrofit tailgate counterbalancing hinge
US7243977B2 (en) * 2005-05-20 2007-07-17 M & C Corporation Integrated torsion bar liftgate
US20070057532A1 (en) * 2005-05-20 2007-03-15 M & C Corporation Integrated torsion bar liftgate
US7156450B2 (en) * 2005-05-20 2007-01-02 M & C Corporation Integrated torsion bar liftgate
US20060261634A1 (en) * 2005-05-20 2006-11-23 M & C Corporation Integrated torsion bar liftgate
US20160347379A1 (en) * 2015-05-27 2016-12-01 Ventra Group, Co. Tailgate counterbalance with dual torque rods
US9677311B2 (en) * 2015-05-27 2017-06-13 Ventra Group, Co. Tailgate counterbalance with dual torque rods

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