US2128849A - Folding hood - Google Patents

Folding hood Download PDF

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Publication number
US2128849A
US2128849A US110350A US11035036A US2128849A US 2128849 A US2128849 A US 2128849A US 110350 A US110350 A US 110350A US 11035036 A US11035036 A US 11035036A US 2128849 A US2128849 A US 2128849A
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US
United States
Prior art keywords
piston
hood
pump
vehicle
valve
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Expired - Lifetime
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US110350A
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English (en)
Inventor
Redfern Francis Henry
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Individual
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Individual
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Publication of US2128849A publication Critical patent/US2128849A/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J7/00—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs
    • B60J7/08—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position
    • B60J7/12—Non-fixed roofs; Roofs with movable panels, e.g. rotary sunroofs of non-sliding type, i.e. movable or removable roofs or panels, e.g. let-down tops or roofs capable of being easily detached or of assuming a collapsed or inoperative position foldable; Tensioning mechanisms therefor, e.g. struts
    • B60J7/1226—Soft tops for convertible vehicles
    • B60J7/1265—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages
    • B60J7/1269—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages with remote power control
    • B60J7/1273—Soft tops for convertible vehicles characterised by kinematic movements, e.g. using parallelogram linkages with remote power control using hydraulic means
    • 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
    • Y10S60/00—Power plants
    • Y10S60/903—Closures operators

Definitions

  • This invention relates to folding hoods for motor and other road vehicles and for means of conveyance whether by land.. sea or air, hereinafter termed vehicles, of the type Acomprising 5 main pillars pivoted towards the rear of the vehicle and carrying at their ends cant rails (preferably formed by rear and front sections) the outer ends of which are connected, for example by a front cross-bar (from which the hood fabric extends to the back of the body) a suitable linkage or otherwise effecting the co-operative movements of the parts when the main pillars are caused to turn about their aligned pivots.
  • vehicles of the type Acomprising 5 main pillars pivoted towards the rear of the vehicle and carrying at their ends cant rails (preferably formed by rear and front sections) the outer ends of which are connected, for example by a front cross-bar (from which the hood fabric extends to the back of the body) a suitable linkage or otherwise effecting the co-operative movements of the parts when the main pillars are caused to turn about their aligned pivots.
  • the principal object of the invention is to provide simple and eiiicient hydraulic means by which the main pillars are turned in order to effect the erection or folding of the hood as the case may be.
  • a further object is vto provide such hydraulic 20 means to operate in both directions, that is, for
  • the invention comprises a double-acting hydraulic cylinder and piston and piston rod, ram or plunger assembly, which is pivotally connected ony the one hand to the frame, bodywork or chassis of the vehicle at a fixed point and on the other hand to the main pillar.
  • each cylinder having means 30 of connection to a controlled supply of pressure fluid for the projection. and retraction of the piston rod, ram or plunger means from or into the cylinder.
  • the arrangement ofthe double-acting assembly is such that the pressure. fluid effects both the erection and collapsing of the hood and the operation takes place through piston means having differential areas on the two effective working faces thereof.
  • valve or other control devices are providedior the erection and/or the collapse of the hood to bring it intothe required position at will.
  • the two -main pillars (one on each side) are connected to either a portion of the chassis itself (as distinct from the bodywork) or to a member connected to the chassis.
  • This enables the hood structure as aframework without the covering or any other part of the bodywork being present to be assembled on the chassis independently of the bodywork, thus giving maximum rigidity.
  • the hydraulic action takes place through a pump and suitable conduits (preferably in connection with a suitable supply reservoir) so that upon the operation of the pump, 5 according to the particular arrangement and the setting of the valves, the hood is erected, or collapsed, either action being cushioned if desired.
  • the hydraulic pump may be power-operated, for example by means of an electric motor driven by suitable means such as an accumulator which may be the accumulator of the vehicle, or by the engine of the l5 vehicle or otherwise.
  • a rotary pump may be employed mounted through a suitably cushioned or other coupling directly (or through suitable 20 gearing) on the shaft of an electric motor, the pump and electric motor forming a unit and being carried by a bracket or other means in any suitable position, for example at the side of or below the chassis.
  • the electric motor 25 circuit is switch controlled from the dash-board and obtains its power from the normal accumulator carried by the vehicle.
  • handle, lever or like means are provided (for example 3o on the dash-board) for setting the valve controlling means into a position for erecting the hood or collapsing the hood; subsequent to such setting, the electric motor controlling the rotary pump being brought into circuit by suitable 35 switch means.
  • Fig. 1 is a diagrammatic side elevation of a 40 portion of the chassis of a motor road vehicle with a folding hood constructed according to one method of carrying the invention into effect 'pivotally attached thereto, the diagram showing the general installation and with thehood in the 45 erected position.
  • Fig. 2 shows a similar view to Fig. 1 but of a fragment of the parts shown in Fig. 1 and these latter in the collapsed position of the hood.
  • Fig. 3 shows a diagram of a portion of the in- 50 stallation shown in Fig. 1 but somewhat more detailed.
  • Fig. 4 shows a similar view to Fig.' 3 but of a modified method of carrying the invention into effect. 55
  • FIG. 1 the structure illustrates the mechanism on one side of the vehicle, but (insofar as the' hood and its framework are concerned) this lstructure is repeated on the other side of the vehicle.
  • I0 is the main pillar pivoted at II and I2 the rear cant-rail section pivoted at I3 to the upper portion of the main pillar and having a rearward extension I4 pivoted to an anchoring link I5 having its main pivot at I6.
  • I1 To the rear cant-rail section is hinged at I1 a front cant-rail section I8, I9 being the front control link pivoted at 20 to an upper extension of the mainpillar ICI, the
  • vcontrol link I9 having pivoted thereto a link 2I in turn pivoted to another link 22 attached to the front cant-rail section, the links 2
  • This latter togetherwith a front cross bar 24, with a stick or stretcher 25 carried between the upper extensions of the pillars I0 and with similar sticks or stretchers 26 and 21 carried by extendable members 28 and 29 suitably pivoted, support between them in the usual manner the hood material 30, this latter being suitably attached to the body of the vehicle at the rear, for example at 3
  • the front cant-rail links are connected to two links 34 and 35.
  • the rst of these has its lower end pivoted at 36 to the front cant rail section' and its upper end to the link I9 at 31, whilst the second of these is pivoted at 38 to the rear cantrail section and its upper end to the pivot 31.
  • the two links 34 and 35 are of equal length and the distance of their pivots 36 from the hinge l1 is equal.
  • this particular arrangement may be varied and the links may be of diierent lengths and their pivotal distance from the hinge I1 also may be varied. Further, in place of the pivot 31, which pivots the two links together,
  • control links may be pivoted to either of the links in a position between the pivots l5 or 38 (as the case may be) and the pivot 31.
  • either of the links 34 or 35 may be' extended beyond the pivot 31 and the front control link I 9 pivotally connected to such extension.
  • the erection or the collapsing of the hood, orv both takes place by hydraulic means.
  • This hydraulic means preferably comprises what may be termed an extensible strut formed by a cylinder and piston assembly. .Such an assembly may be disposed on one side-of the vehicle only or on both sides of the vehicle, but preferably the' latter, and the preferred mounting is as follows.
  • One end of said assembly is pivoted to the chassis and the other end to the main control pillar.
  • the pivotal movement of the main pillar takes place to effect the erection of the hood whilst when it is contracted the pivoted main pillar is brought to the collapsed position and through its movements brings the hood to the collapsed position.
  • Figs. 1, 2, 3 and 5 The hydraulic assembly as illustrated in Figs. 1, 2, 3 and 5 is made double-acting.
  • Fig. l it is shown in the extended position and cornprses a cylinder 42 pivoted to the chassis at 43 and having its ram or rod 44 pivotally connected at 45 to the main pivoted pillar I0.
  • the erection of the hood is accomplished whilst in the contracted position as shown in Fig. 2 the hood is collapsed or lowered, the preliminary operation for this latter purpose being unfastening the fastening devices between the front cross bar 24 and the upper portion of the frame of the windscreen 46.
  • the cylinder and piston assembly as used in Figs. 1 and 2 is shown in section in Fig. 5.
  • This comprises a cylinder 41 having an end 48 with an inlet 49 and trunnions constituting the pivot
  • the other end is comprised by a cap 50 with a bore or bearing for the piston rod 5
  • the cap 50 has an inlet' 54 for fluid.
  • the inner end of the piston rod is formed or provided with a piston 55 having a gland 56.
  • This latter preferably is expansible so that in one direction it can actas a seal Whilst in the other direction it need not seal.
  • the surface areas of the piston 55 are unequal. On the one side the area is that of the internal cross section of the cylinder 41 whilst on the other side (owing to the presence of the piston rod 5
  • FIG. 3 A method by which the pressure fluid (such as oil) is fed to the cylinder to attain the objects just described is illustrated in Fig. 3 and also (to some extent) in Fig. 1.
  • 51 is a two-way rotary pump driven by an electric motor 58 in the circuit of an accumulator 59 which circuit also includes a switch 6D.
  • is the outlet from the pump and 62 the inlet, this latter communicating with a supply reservoir 63, 64 being a pipe branched between the supply 63 and the inlet 62.
  • This branch 64 has therein a valve 65 and on the other side passes, by a conduit 66, to the apertured inlet 49.
  • valve 65 so that the two valves 65 and 66 are controllable from a common handle 69 in such manner that when the one valve is closed the other is open.
  • a conduit 10 is arranged which is branched on to a conduit 1
  • the switch 60 and the handle 69 are located on the dash or fascia board f the vehicle whilst the supply reservoir 63 comes beneath the bonnet, the accumulator 59 being the usual accumulator utilized on a vehicle, the electric motor 58 and pump 51 being arranged as a unit and attached in a suitable position to a side frame 33 of the chassis.
  • the valve 68 is closed and the valve 65 opened, the circuit of the electro-motor being again closed by the switch 60.
  • This causes the pressure fluid, as before, to pass by the conduit 1
  • the pressure fluid cannot pass back through the conduit 1U and through the valve 68 as this latter is closed.
  • the iluid in front of the portion of the piston of larger area is not under pressure and is free to flow out through the apertured inlet 49 into .the conduit 66. It cannot pass the valve 68 which is closed, but it can pass ⁇ the valve 65 which is open. It thus enters the conduit 64, from whence it is free to pass to the inlet 62 of the pump and to the reservoir 63.
  • a hand pumping system may be utilized, whether the piston and cylinder assembly, or assemblies, are
  • Fig. 4 indicates a hand pumping assembly where 18 is a hand pump operable from a lever 19. This may be detachable and fitted into position where required.
  • the pump may be located beneath a suitable apertured oorboard capable of having the handle or extension 1S iitted therethrough to be operated through a suitable stroke to actuate the pump.
  • the pump 18 is in connection with a supply reservoir and the installation includes a valve 8
  • the valve assembly if required may be set from the dash or fascia board.
  • spring means may supplement the action of the hydraulic piston and cylinder assemblies.
  • a compression spring can be arranged on the exterior of the cylinder and co-operate with an abutment thereon and with an abutment on the piston rod, so that the compression of the spring assists the preliminary erecting action and brakes the final collapsing action.
  • the piston may include therein a spring adapted to project inwardly and cushion itself against the lower end of the cylinder towards the end of the collapsing action. lIn this way it would cushion the said action and store stress to assist the preliminary erecting action.
  • any usual safety or relief valves may be incorporated in any part of the system they may be desired; or again, in connection with the power drive slipping or other clutches may be incorporated automatically to come into operation when the load passes a predetermined limit.
  • This eiect may also be assured, if desired, by making the switch controlling the running of the electric motor of the push variety so thatit only operates when the hand presses thereon.
  • Folding hoods for vehicles which have main pillars, comprising extensible and retractable hydraulic piston and cylinder assemblies on each side of the vehicle each pivoted at one end to a main pillar of the hood and at the other end to the chassis of the vehicle, each piston and cylinder assembly being double-acting and having at each end of the cylinder inlet means for pres-I sure uid, the said inlet means being in connection with a conduit system including a pump, a reservoir for fluid and controlling valve means, .the two surfaces of the piston having different Iareas and the valve controlling means of such nature that either the smaller surface of the piston or both surfaces are available to the pressure uid according to the valve setting, substantially as and for the purposes set forth.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
US110350A 1936-08-05 1936-11-11 Folding hood Expired - Lifetime US2128849A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB21539/36A GB479444A (en) 1936-08-05 1936-08-05 Improvements in and relating to folding hoods for motor road vehicles and the like

Publications (1)

Publication Number Publication Date
US2128849A true US2128849A (en) 1938-08-30

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ID=10164599

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Application Number Title Priority Date Filing Date
US110350A Expired - Lifetime US2128849A (en) 1936-08-05 1936-11-11 Folding hood

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US (1) US2128849A (enrdf_load_stackoverflow)
BE (1) BE418526A (enrdf_load_stackoverflow)
FR (1) FR817693A (enrdf_load_stackoverflow)
GB (1) GB479444A (enrdf_load_stackoverflow)

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498868A (en) * 1947-07-02 1950-02-28 Briggs Mfg Co Convertible top for vehicle bodies
US2535600A (en) * 1947-06-14 1950-12-26 Trico Products Corp Motor vehicle luggage compartment closure operating mechanism
US2540454A (en) * 1948-05-29 1951-02-06 Jacobs Co F L Linkage system for foldable vehicle tops
US2549153A (en) * 1946-05-01 1951-04-17 John W J Ackermans Folding top for automobiles
US2560496A (en) * 1947-07-02 1951-07-10 Briggs Mfg Co Foldable top for vehicle bodies
US2581660A (en) * 1948-02-12 1952-01-08 Trico Products Corp Actuator for convertible vehicle tops
US2635427A (en) * 1950-10-18 1953-04-21 Gen Motors Corp Load raising device
US2667380A (en) * 1950-08-10 1954-01-26 John B Parsons Combined regulator system for selective operation of vehicle tops, windows, and other parts
US2687004A (en) * 1949-01-26 1954-08-24 Trico Products Corp Fluid pressure accessory system for motor vehicles
US2696403A (en) * 1950-10-25 1954-12-07 Gen Motors Corp Electrohydraulic control and actuating system for vehicle tops, windows, and seats
US2704226A (en) * 1951-09-15 1955-03-15 Carbodies Ltd Motor car body with collapsible hood
EP0309066A1 (en) * 1987-09-23 1989-03-29 Applied Power Inc. Piston-cylinder device to be powered by a pressure fluid
US6299233B1 (en) * 1999-05-14 2001-10-09 Actuant Corporation Convertible top assembly with hydraulic actuating device
CN109823152A (zh) * 2019-02-18 2019-05-31 广东信源物流设备有限公司 一种顶部开启式货物运输车厢

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2802694A (en) * 1949-01-24 1957-08-13 Pollard & Johnston Retractible vehicle top with actuator responsive to rain switch
US6755457B2 (en) 2002-09-09 2004-06-29 Asc Incorporated Vehicle convertible roof

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2549153A (en) * 1946-05-01 1951-04-17 John W J Ackermans Folding top for automobiles
US2535600A (en) * 1947-06-14 1950-12-26 Trico Products Corp Motor vehicle luggage compartment closure operating mechanism
US2498868A (en) * 1947-07-02 1950-02-28 Briggs Mfg Co Convertible top for vehicle bodies
US2560496A (en) * 1947-07-02 1951-07-10 Briggs Mfg Co Foldable top for vehicle bodies
US2581660A (en) * 1948-02-12 1952-01-08 Trico Products Corp Actuator for convertible vehicle tops
US2540454A (en) * 1948-05-29 1951-02-06 Jacobs Co F L Linkage system for foldable vehicle tops
US2687004A (en) * 1949-01-26 1954-08-24 Trico Products Corp Fluid pressure accessory system for motor vehicles
US2667380A (en) * 1950-08-10 1954-01-26 John B Parsons Combined regulator system for selective operation of vehicle tops, windows, and other parts
US2635427A (en) * 1950-10-18 1953-04-21 Gen Motors Corp Load raising device
US2696403A (en) * 1950-10-25 1954-12-07 Gen Motors Corp Electrohydraulic control and actuating system for vehicle tops, windows, and seats
US2704226A (en) * 1951-09-15 1955-03-15 Carbodies Ltd Motor car body with collapsible hood
EP0309066A1 (en) * 1987-09-23 1989-03-29 Applied Power Inc. Piston-cylinder device to be powered by a pressure fluid
US4969388A (en) * 1987-09-23 1990-11-13 Applied Power Inc. Piston-cylinder device to be powered by a pressure fluid
US6299233B1 (en) * 1999-05-14 2001-10-09 Actuant Corporation Convertible top assembly with hydraulic actuating device
CN109823152A (zh) * 2019-02-18 2019-05-31 广东信源物流设备有限公司 一种顶部开启式货物运输车厢
CN109823152B (zh) * 2019-02-18 2023-08-29 广东信源物流设备有限公司 一种顶部开启式货物运输车厢

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Publication number Publication date
GB479444A (en) 1938-02-07
BE418526A (enrdf_load_stackoverflow)
FR817693A (fr) 1937-09-08

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