EP2832942B1 - Hinge for movable parts of motor vehicle bodyworks, such as doors, boots, bonnets and/or hatchback doors - Google Patents

Hinge for movable parts of motor vehicle bodyworks, such as doors, boots, bonnets and/or hatchback doors Download PDF

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Publication number
EP2832942B1
EP2832942B1 EP14177798.7A EP14177798A EP2832942B1 EP 2832942 B1 EP2832942 B1 EP 2832942B1 EP 14177798 A EP14177798 A EP 14177798A EP 2832942 B1 EP2832942 B1 EP 2832942B1
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EP
European Patent Office
Prior art keywords
pin
hinge
hooking portion
doors
bodywork
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.)
Active
Application number
EP14177798.7A
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German (de)
French (fr)
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EP2832942A1 (en
Inventor
Romeo De Molli
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.)
De Molli Giancarlo Industrie SpA
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De Molli Giancarlo Industrie SpA
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Publication of EP2832942A1 publication Critical patent/EP2832942A1/en
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers 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
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D3/00—Hinges with pins
    • E05D3/06—Hinges with pins with two or more pins
    • E05D3/14—Hinges with pins with two or more pins with four parallel pins and two arms
    • E05D3/145—Hinges with pins with two or more pins with four parallel pins and two arms specially adapted for vehicles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05D—HINGES OR SUSPENSION DEVICES FOR DOORS, WINDOWS OR WINGS
    • E05D5/00—Construction of single parts, e.g. the parts for attachment
    • E05D5/02—Parts for attachment, e.g. flaps
    • E05D5/06—Bent flaps
    • E05D5/062—Bent flaps specially adapted for vehicles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
    • E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
    • E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
    • E05F1/10—Closers 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
    • E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
    • E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
    • E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2800/00—Details, accessories and auxiliary operations not otherwise provided for
    • E05Y2800/70—Retrofitting of elements
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05Y—INDEXING 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
    • E05Y2900/00—Application of doors, windows, wings or fittings thereof
    • E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
    • E05Y2900/53—Application of doors, windows, wings or fittings thereof for vehicles characterised by the type of wing
    • E05Y2900/531—Doors

Definitions

  • the object of the present invention is a hinge apt for moving and supporting movable parts of motor vehicles, such as doors, boots, bonnets, hatchback doors and the like.
  • motor vehicles can be equipped with servomechanisms that aid in the closing or opening of movable parts of the bodywork thereof. Solutions of this type can be found for example on "high-end” vehicles for civilian use and on commercial/industrial vehicles provided with doors/hatchback doors that are particularly heavy or unwieldy.
  • Servo control devices of a known type are usually realised with hydraulic or pneumatic actuators, which are apt for exerting a "supplementary force" with respect to that of the operator (or even, in some cases, for exerting all the force needed without intervention on the part of the operator, who only needs to use an opening or closing command) in order to conveniently move the door or bonnet or whatever else needs to be opened or closed.
  • these above-mentioned devices are mounted separately with respect to the kinematic articulation mechanisms of a variety of doors and hatchback doors.
  • the present invention is thus aimed at devising a hinge for movable parts of motor vehicle bodyworks (for example doors, bonnets, boots and/or hatchback doors) that is capable of overcoming the limitations cited hereinabove.
  • the present invention is principally aimed at devising a hinge that can be put to use functionally integrating greater and more practical utility in terms of offering aid in opening and closing the above-mentioned "movable parts of bodywork", while offering at the same time considerable overall compactness and production costs that are as low as possible.
  • the present invention is aimed at devising a hinge that can also replace previously installed elements, for example by means of aftermarket upgrades or during maintenance procedures or repair work.
  • the defined technical task and the specified aims are substantially achieved by a hinge for movable parts of motor vehicle bodyworks, having the characteristics recited in one or more of the appended claims.
  • the hinge according to the present invention is indicated in its entirety by the reference number 1 and it substantially comprises a first hooking portion 2 (connectable to a fixed part of a chassis and/or a bodywork), a kinematic articulation mechanism 3 connected to the first hooking portion 2, and a second hooking portion 4 connected to the kinematic articulation mechanism 3 (and also connectable to a movable part of a chassis and/or a bodywork).
  • the present hinge further comprises a servo control unit 5 simultaneously associated with the first and the second hooking portions 2, 4.
  • the kinematic articulation mechanism 3 can conveniently define an articulated quadrilateral and thus comprises:
  • the servo control unit 5 comprises at least one actuator 5a, which is apt for exerting a so-called “active force” at least on the second hooking portion 4 (which is connected to the door/hatchback door and that is thus capable of transmitting servo control action).
  • the servo control unit 5 may also be connected to components of the kinematic articulation mechanism, or more generally, it can be mounted on/dismounted from a hinge previously installed /in use on the vehicle. With this aim, the servo control unit can utilise "extra travel" of the movable part thereof, without the use of tools and without manoeuvring and/or using external components.
  • the actuator 5a comprises at least one pre-loaded axial spring.
  • This spring is interconnected through a fifth pin 5b and a sixth pin 5c with the first and the second hooking portions 2 e 4, respectively, so as to be able to exert the above-mentioned "active force" in a linear proportion to the elongation thereof extending between the fifth pin 5b and the sixth pin 5c.
  • the pre-load adjusting unit As concerns the positioning of the pre-load adjusting unit, it coincides with the spring-guiding element 6 or the end housing 7.
  • the pre-load adjusting unit for the servo control unit can also perform the function of an "opening limit stop" for the movable part of a door/hatchback door during normal procedures, and even an extra supplementary range of travel of the movable part of the door/hatchback door can be made available without having to manoeuvre any components.
  • At least one geometric-adjustment element 8 is present.
  • This geometric-adjustment element is connectable to the first and/or the second hooking portion in order to vary a relative position of the fifth and/or sixth pin 5b and/or 5c, thus varying the "lever arms" and therefore the servo control actuating modes as well.
  • a damping element is conveniently installable in the hinge 1, the damping element being apt for generating a damping force.
  • This damping force is exerted coordinately with the active force generated by the servo control unit 5, and according to prior art technology this damping element is preferably apt for generating a viscous force (or in any case a force proportional to a displacement and/or a relative speed between two components of the same hinge) .
  • An object of the present invention is also a motor vehicle comprising bodywork and a predetermined number of movable parts of this bodywork (e.g.: doors, bonnets, boots and/or hatchback doors movably articulated relative to the bodywork).
  • This motor vehicle comprises at least one hinge as described hereinabove and as claimed below (conveniently, this hinge is interposed between the bodywork and at least one of the "movable parts" listed above).
  • the invention achieves numerous advantages.
  • the device can be mounted in spaces that are quite limited, and the servo control function can be integrated with the kinematic articulation function. Furthermore, the complete absence of working fluids or gases makes this device virtually free from functional variations due to environmental factors such as temperature.
  • the present invention is capable of markedly facilitating the opening of a door/hatchback door or a similar movable object, and capable of keeping it stably in an open position without the aid of additional mechanical stops.
  • a further advantage achieved by the present hinge is offered by the fact it is possible to safeguard any "fragile” or “delicate” parts of the vehicle that may be mounted in the vicinity of the door/bonnet/hatchback door, during the closing step.
  • the servo control means as described hereinabove and claimed below also functions as a "brake” during closure, thereby preventing violent closure and thus the transmission of abrupt stresses.

Description

  • The object of the present invention is a hinge apt for moving and supporting movable parts of motor vehicles, such as doors, boots, bonnets, hatchback doors and the like.
  • As is known, motor vehicles can be equipped with servomechanisms that aid in the closing or opening of movable parts of the bodywork thereof. Solutions of this type can be found for example on "high-end" vehicles for civilian use and on commercial/industrial vehicles provided with doors/hatchback doors that are particularly heavy or unwieldy.
  • Servo control devices of a known type are usually realised with hydraulic or pneumatic actuators, which are apt for exerting a "supplementary force" with respect to that of the operator (or even, in some cases, for exerting all the force needed without intervention on the part of the operator, who only needs to use an opening or closing command) in order to conveniently move the door or bonnet or whatever else needs to be opened or closed. Generally, these above-mentioned devices are mounted separately with respect to the kinematic articulation mechanisms of a variety of doors and hatchback doors.
  • Though widely employed, the prior art described hereinabove has some drawbacks that limit its overall utility; specifically, the overall dimensions of the servo actuating mechanisms of a known type are quite sizeable, especially considering that they must be interposed in operating volumes comprised between the "fixed" parts and the "movable" parts of the bodywork (which under closed conditions, prove to be fitted very snugly to each other). An example of such solution is shown in document US 2003/217436 A1 and in document US 2 641 795 A . Moreover, another disadvantage of the servo actuators of a known type lies in their cost and their intrinsic complexity. In fact, hydraulic or pneumatic elements must ensure marked levels of reliability and hermetic sealing for the working fluid/gas, and this inevitably requires a structure and equipment (including seals, sliding elements and materials) that markedly affect costs. An example of such solution is shown in document US 2005/264029 A1 . The fact that servo control mechanisms of a known type and that work with fluids/gases are particularly sensitive to variations in environmental temperature should be kept in mind. In fact, variations of this sort directly affect viscosity and thus the so-called "equivalent modulus of elasticity" of the working fluid, sometimes making the action of the entire mechanism too strong or too weak. The present invention is thus aimed at devising a hinge for movable parts of motor vehicle bodyworks (for example doors, bonnets, boots and/or hatchback doors) that is capable of overcoming the limitations cited hereinabove. The present invention is principally aimed at devising a hinge that can be put to use functionally integrating greater and more practical utility in terms of offering aid in opening and closing the above-mentioned "movable parts of bodywork", while offering at the same time considerable overall compactness and production costs that are as low as possible.
  • Furthermore, the present invention is aimed at devising a hinge that can also replace previously installed elements, for example by means of aftermarket upgrades or during maintenance procedures or repair work. The defined technical task and the specified aims are substantially achieved by a hinge for movable parts of motor vehicle bodyworks, having the characteristics recited in one or more of the appended claims.
  • The description of a preferred but not exclusive embodiment of a hinge according to the invention is now provided by way of approximate and non-limiting example, and illustrated in the accompanying drawings, in which:
    • Figure 1 is a schematic view of the hinge according to the invention in a first operative configuration (corresponding to a "closed" situation of a movable bodywork part); and
    • Figure 2 is a schematic view of the hinge according to the invention in a second operative configuration (corresponding to an "opened" situation of a movable bodywork part).
  • With reference to the accompanying drawings, the hinge according to the present invention is indicated in its entirety by the reference number 1 and it substantially comprises a first hooking portion 2 (connectable to a fixed part of a chassis and/or a bodywork), a kinematic articulation mechanism 3 connected to the first hooking portion 2, and a second hooking portion 4 connected to the kinematic articulation mechanism 3 (and also connectable to a movable part of a chassis and/or a bodywork). The present hinge further comprises a servo control unit 5 simultaneously associated with the first and the second hooking portions 2, 4.
  • At this point the difference between the present invention and the state of the art presented hereinabove should be pointed out. In fact, owing to the structural and functional incorporation of the servo control unit and owing to the fact that this unit is made up of an active element that is extremely compact and that operates without the intervention of fluids or gases, high performance levels are achieved in terms of the generation of the active force, and at the same time, a marked reduction in the overall dimensions is also achieved.
  • In further detail, it can be observed that the kinematic articulation mechanism 3 can conveniently define an articulated quadrilateral and thus comprises:
    • a first connecting lever 3a, which, in turn, has a first pin 3b (connected to the first hooking portion 2) and a second pin 3c (which is instead connected to the second hooking portion 4; and
    • a second connecting lever 3d, which has a third pin 3e (connected to the first hooking portion 2) and a fourth pin 3f (which is instead connected to the second hooking portion 4).
  • For its part, the servo control unit 5 comprises at least one actuator 5a, which is apt for exerting a so-called "active force" at least on the second hooking portion 4 (which is connected to the door/hatchback door and that is thus capable of transmitting servo control action).
  • According to the needs at hand but not covered by the claims, the servo control unit 5 may also be connected to components of the kinematic articulation mechanism, or more generally, it can be mounted on/dismounted from a hinge previously installed /in use on the vehicle. With this aim, the servo control unit can utilise "extra travel" of the movable part thereof, without the use of tools and without manoeuvring and/or using external components.
  • In the present invention, the actuator 5a comprises at least one pre-loaded axial spring. This spring is interconnected through a fifth pin 5b and a sixth pin 5c with the first and the second hooking portions 2 e 4, respectively, so as to be able to exert the above-mentioned "active force" in a linear proportion to the elongation thereof extending between the fifth pin 5b and the sixth pin 5c.
  • With reference to the accompanying drawings, it is possible to observe the presence of a spring-guiding element 6, which is axially fitted in the pre-loaded spring, as well as the presence of an end housing 7, which is coaxial with the spring-guiding element 6 and placed in correspondence with the fifth pin 5b or the sixth pin 5c.
  • Should one wish to make the invention more flexible in terms of different installations (or, in other words, if one wishes to produces only one object that can be adapted for use in servo controlling doors and/or hatchback doors varying in surfaces and weights), the presence of a pre-load adjusting unit for the actuator 5a is provided. This adjusting unit can be realised in any manner whatsoever, even according to prior art technologies.
  • As concerns the positioning of the pre-load adjusting unit, it coincides with the spring-guiding element 6 or the end housing 7.
  • Moreover, the pre-load adjusting unit for the servo control unit can also perform the function of an "opening limit stop" for the movable part of a door/hatchback door during normal procedures, and even an extra supplementary range of travel of the movable part of the door/hatchback door can be made available without having to manoeuvre any components.
  • Again, in order to make it possible to adapt the present invention to different situations of operation or use in a variety of settings, at least one geometric-adjustment element 8 is present. This geometric-adjustment element is connectable to the first and/or the second hooking portion in order to vary a relative position of the fifth and/or sixth pin 5b and/or 5c, thus varying the "lever arms" and therefore the servo control actuating modes as well.
  • Should one wish to increase the functions of the present invention further, a damping element is conveniently installable in the hinge 1, the damping element being apt for generating a damping force.
  • This damping force is exerted coordinately with the active force generated by the servo control unit 5, and according to prior art technology this damping element is preferably apt for generating a viscous force (or in any case a force proportional to a displacement and/or a relative speed between two components of the same hinge) .
  • An object of the present invention is also a motor vehicle comprising bodywork and a predetermined number of movable parts of this bodywork (e.g.: doors, bonnets, boots and/or hatchback doors movably articulated relative to the bodywork). This motor vehicle comprises at least one hinge as described hereinabove and as claimed below (conveniently, this hinge is interposed between the bodywork and at least one of the "movable parts" listed above).
  • The invention achieves numerous advantages.
  • In fact, owing to the particular structural design of the present hinge, the device can be mounted in spaces that are quite limited, and the servo control function can be integrated with the kinematic articulation function. Furthermore, the complete absence of working fluids or gases makes this device virtually free from functional variations due to environmental factors such as temperature.
  • Moreover, the present invention is capable of markedly facilitating the opening of a door/hatchback door or a similar movable object, and capable of keeping it stably in an open position without the aid of additional mechanical stops.
  • A further advantage achieved by the present hinge is offered by the fact it is possible to safeguard any "fragile" or "delicate" parts of the vehicle that may be mounted in the vicinity of the door/bonnet/hatchback door, during the closing step. In fact, the servo control means as described hereinabove and claimed below, also functions as a "brake" during closure, thereby preventing violent closure and thus the transmission of abrupt stresses.
  • Lastly, it can be observed that the reduced total number of parts and the absence of working fluids or gases make the present invention extremely reliable, easy to maintain and above all economical.

Claims (5)

  1. A hinge for movable parts of motor vehicle bodyworks, said movable parts preferably being doors, bonnets, boots, and/or hatchback doors, said hinge comprising:
    - a first hooking portion (2) connectable to a fixed part of a chassis and/or a bodywork;
    - a kinematic articulation mechanism (3) connected to said first hooking portion (2); and
    - a second hooking portion (4) connected to said kinematic articulation mechanism (3) and connectable to a movable part of a chassis and/or a bodywork,
    it further comprises a servo control unit (5) simultaneously associated with the first and the second hooking portions (2, 4)
    said servo control unit (5) comprises at least one actuator (5a) adapted to exert an active force at least on said second hooking portion (4), wherein said at least one actuator (5a) comprises at least one pre-loaded axial spring interconnected through a fifth pin (5b) and a sixth pin (5c) with the first and the second hooking portions (2 and 4) respectively, characterised in that said servo control means (5) further comprises:
    - a spring-guiding element (6) axially fitted in the pre-loaded spring; and
    - an end housing (7) coaxial with said spring-guiding element (6) and placed in correspondence with the fifth pin (5b) or the sixth pin (5c);
    a pre-load adjusting unit for said at least one actuator (5a) is also present, said adjusting unit is coincident with the spring-guiding element (6) or the end housing (7),
    - and at least one geometric-adjustment element (8) is present and connectable to the first and/or second hooking portion (2 and/or 4) in order to vary a relative position of the fifth and/or sixth pin (5b and/or 5c).
  2. The hinge as claimed in claim 1, wherein said kinematic articulation mechanism comprises:
    - a first connecting lever (3a) having a first pin (3b) connected to the first hooking portion (2) and a second pin (3c) connected to the second hooking portion (4); and
    - a second connecting lever (3d) having a third pin (3e) connected to the first hooking portion (2) and a fourth pin (3f) connected to the second hooking portion (4).
  3. The hinge as claimed in claim 1, wherein said pre-loaded axial spring is adapted to exert said active force in a linear proportion to the elongation thereof extending between said fifth pin (5b) and said sixth pin (5c) .
  4. The hinge as claimed in any one of the preceding claims, wherein there is also present a damping element adapted to generate a damping force that is exerted coordinately with said active force generated by the servo control unit (5), said damping element preferably being adapted to generate a viscous force or a force proportional to a displacement and/or a relative speed between two components of the hinge (1).
  5. A motor vehicle comprising a bodywork and a predetermined number of movable parts of said bodywork, said movable parts preferably being doors and/or bonnets, and/or boots, and/or hatchback doors movably articulated relative to said bodywork, characterised in that it comprises at least one hinge as claimed in any one of the preceding claims, which is interposed between the bodywork and at least one of said movable parts.
EP14177798.7A 2013-07-30 2014-07-21 Hinge for movable parts of motor vehicle bodyworks, such as doors, boots, bonnets and/or hatchback doors Active EP2832942B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT001277A ITMI20131277A1 (en) 2013-07-30 2013-07-30 HINGE FOR MOBILE BODY PARTS OF VEHICLES, SUCH AS EXAMPLE DOORS, GOALKEEPERS, TRUNKS, BONNETS AND / OR DOORS OF VEHICLES

Publications (2)

Publication Number Publication Date
EP2832942A1 EP2832942A1 (en) 2015-02-04
EP2832942B1 true EP2832942B1 (en) 2018-08-29

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Application Number Title Priority Date Filing Date
EP14177798.7A Active EP2832942B1 (en) 2013-07-30 2014-07-21 Hinge for movable parts of motor vehicle bodyworks, such as doors, boots, bonnets and/or hatchback doors

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EP (1) EP2832942B1 (en)
IT (1) ITMI20131277A1 (en)
TR (1) TR201815977T4 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641795A (en) * 1950-12-28 1953-06-16 Heatilator Inc Counterbalancing spring hinge

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10159591C1 (en) * 2001-12-05 2003-09-25 Innotec Forschungs & Entw Gmbh Spring-assisted movement mechanism for automobile trunk lid has spring attached to flexible coupling element passed around peripheral surface of pivoted lever arm
US6701574B2 (en) * 2002-05-21 2004-03-09 General Motors Corporation Decklid hinge for vehicle
US20050172453A1 (en) * 2004-02-09 2005-08-11 M & C Corporation Single pivot hinge with integral coil spring assist
US20050264029A1 (en) * 2004-05-25 2005-12-01 Bodner Michael E Strut and hinge assembly for vehicle
US8646762B2 (en) * 2011-10-06 2014-02-11 GM Global Technology Operations LLC Extension spring installation mechanism

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2641795A (en) * 1950-12-28 1953-06-16 Heatilator Inc Counterbalancing spring hinge

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Publication number Publication date
TR201815977T4 (en) 2018-11-21
ITMI20131277A1 (en) 2015-01-31
EP2832942A1 (en) 2015-02-04

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