US2906325A - Power actuated hatchcover - Google Patents

Power actuated hatchcover Download PDF

Info

Publication number
US2906325A
US2906325A US704581A US70458157A US2906325A US 2906325 A US2906325 A US 2906325A US 704581 A US704581 A US 704581A US 70458157 A US70458157 A US 70458157A US 2906325 A US2906325 A US 2906325A
Authority
US
United States
Prior art keywords
panels
link
cam
panel
pivot
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
US704581A
Other languages
English (en)
Inventor
Joseph E Hannigan
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.)
Cleveland Pneumatic Industries Inc
Original Assignee
Cleveland Pneumatic Industries 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 Cleveland Pneumatic Industries Inc filed Critical Cleveland Pneumatic Industries Inc
Priority to US704581A priority Critical patent/US2906325A/en
Application granted granted Critical
Publication of US2906325A publication Critical patent/US2906325A/en
Priority to BE681799D priority patent/BE681799A/xx
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B19/00—Arrangements or adaptations of ports, doors, windows, port-holes, or other openings or covers
    • B63B19/12—Hatches; Hatchways
    • B63B19/14—Hatch covers
    • B63B19/19—Hatch covers foldable
    • B63B19/197—Hatch covers foldable actuated by fluid pressure

Definitions

  • This invention relates generally to closure operators and more particularly to an actuating system suitable for use in the operation of hatchcovers for ships and the like.
  • a still further objective of this invention is to provide a new and improved power actuator hatchcover system for ship hatchways.
  • FIG. 1 is a perspective View of a typical hatchcover to which this invention is applicable;
  • Figure 2 is a side elevation of the hatchcover showing the cover elements in both the closed and open positions;
  • Figure 3 is an enlarged fragmentary plan view with the top plate removed showing the generalvarrangement of the actuating mechanism
  • Figure 4 is an enlarged fragmentary side elevation showing the position the actuating mechanism assumes When the cover is closed; j
  • Figure 5 is a view similar to Figure 4 showing the position the elements assume in an intermediate opening position and,
  • Figure 6 is a View similar to Figures 4 and 5 showing the positions the elements assume in a fully opened position.
  • a hatchcover incorporating this invention is normally formed with a plurality of panels or pontoons 10, 11, 12 and 13 which are positioned in a side-by-side relationship and cover the ships hatchway when they are closed.
  • the illustrated hatchcover there are four panels, however, it should be understood that the size of the-hatchway and the stowage clearances adjacent thereto determine the number of panels used in a particular installation.
  • the panels and 11 are connected by spaced hinges V14 for relative rotation around a hinge axis 16 and the panels 12 and 13 are similarly connected by spaced hinges 17 for relative rotation about a hinge axis 18.
  • the panel 10 is hinged to the ships coaming 19 or the ships deck, as the case may be, by hinges 21 for rotation around a pivot axis 22 and similarly the panel 13 is connected to the coaming 19 by hinges 23 for rotation around a pivot axis 24.
  • the panels are divided in to left and right pairs wherein the left pair comprising the panels 10 and 11 can be rotated from the closed position to the opened or phantom position of Figure 2 at the left end of the hatchway and the right pair comprising the'panels 12 and 13 can be rotated to the phantom position at the right end of the hatchway.
  • this structure is merely illustrative of one stowing arrangement and can be modified to move all Ythe panels to one or the other end of the hatchway by a simple re-arrangement of the hinge connections.
  • the panel 11 is provided with a support arm 27 on either side of the hatchway on which is mounted a roller 26 which rolls along a track 28 on the coaming 19 to guide the right end of the left pair of panels in Similarly the panel 12 is provided with support arms 31 on which are mounted rollers 29 which are adapted to roll along tracks 32 mounted on a coaming 19 in offset relationship with the tracks 28.
  • the opening of the hatchway is accomplished by producing relative rotation between the panels, each pair around their respective hinges 16 and 18.
  • Each of the panels is formed with a relatively heavy upper plate 35 which is stifened by beams and struts, not shown, to give the panels suflicient structural strength.
  • the upperplates 35 cooperate to form a continuous surface when the panels are closed so that it is not necessary to enclose the lower surfaces of the panels. Therefore the lower surface 30 of each panel is formed by an open grid of stiifening beams and struts. It will be understood that these panels will have to be arranged to provide adequate strength and, inaddition, provide support for the actuating mechanism. However, since the particular beam structure will vary widely with different applications, it is not critical to this invention and is not shown. l
  • Each mechanism includes a uid motor 41 having a cylinder 42 pivoted on a bearing pad 43 for rotation around a pivot axis 44.
  • the bearing pad 43 is in turn supported on the upper plate 3S of the panel 13 at a point spaced from the adjacent ends 46 and 47 of the panels 12 and 13 respectively.
  • a piston 48 extends into the cylinder 42 and is axially movable relative thereto under the influence of iluid under pressure supplied to the cylinder 42 by hydraulic pressure lines 52 and 53.
  • iluid under pressure supplied to the line 52
  • the line 53 is connected to a reservoir return and the piston 51 moves to the right relative to the cylinder 42.
  • the piston 48 moves to the left relative to the cylinder 42.
  • the two pressure lines 52 and 53 areconnected to a source of uid under pressure such as a pump or accumulator and a reservoir through a 4-way control valve (not shown).
  • a link 49 is pivotally connected to a bearing pad 54 for rotation relative thereto around a pivot'axis 56 and the bearing pad 54 is in turn mounted on the underside of the upper plate 35 of the npanel 12 adjacent to the edge 46.
  • the link is also pivotally connected to the piston 48 by a pivot pin 50 for relative rotation about an axis 51.
  • I provide opposed Vguide tracks or cams 57 mounted on the panel 13 along which cam followers'SS ioll.
  • the cams 57 are formed of opposed U-shaped channels 59 and 61 best shown in Figure 3 supported on opposed plates 66 and 67, and the cam follower 58 comprises opposed bearings mounted on the pivot pin 50.
  • the effective torque for a given force developed by the fluid 'motor ⁇ 41 is at a maximum when the elements are in th Ve closed position of Figure 4 Iand drop oi as the elements assume the vposition of Figure 6. This is desirable-since the torque required to operate the panels between the closed and open positions is at a maximum as the panels initially move away from the closed position and drops off to a relatively low value as the panels assume the open position.
  • the cams 57 can be a number of different shapes depending upon a particular torque curve desired and the oneshown is merely -illustrative of one which has desirable characteristics.
  • T he' illustrated cam has 'a first straight portion 63 followed by a circular portion 64, having center of curvature at 65, which extends bcyond the end 47 of the panel V13; It is necessary to arrange the cam so that the-locus of movement of the axis 51 is inclined relative to a line connecting the axes 51 and 56 in all positions of operation, ⁇ and so that the follower 58 moves beyond the end 47 when the panels move to the open position. If ysuch proportions are used, the mechanism will not moveV through a dead center and will be capable of producing torque through the entire 180 operational range. l
  • a closure comprising a pair of panels, a hinge connecting adjacent ends of said panels for relative rotation between a first aligned position and a second position, of relative rotation from said first position, a link pivotally connected to one of said panels at a point spaced from saidfhinge, motor -means connected between said link and other panel operable to effect said relative rotation, and cooperating cam means between said link and the other of said panels maintaining movement of said link within a predetermined locus.
  • a folding closure comprising a pair of panels, a hinge connecting adjacent ends of said panels for relative rotation between a first aligned position and a second position 90 of relative rotation from said first position, a link, a pivot connecting said link to one of said panels at a point spaced from said hinge, a cam on the other of said panels, a cam follower on said link in guided engagement with said cam, and motor means connected -to said link operable to move said follower along said cam, a line connecting said pivot and follower being inclined relative to said cam in all positions of said panels.
  • a folding closure a pair of panels, a hinge connecting adjacent ends of said panels for relative rotation between a first aligned position and a second position-90 of relative rotation from said first position, an elongated link, a pivot connecting lsaid link to one of saidl panels at a point spaced from said hinge, a cam on the other of said panels extending beyond said adjacent end thereof, a cam follower on said link in guided engagement with said cam, and fluid motor means including piston and cylinder elements movable relative to each other under the influence of fluid under pressure, one of said elements being connected to said link and the other to said other panel, a line connecting said pivot and follower being inclined relative -to said cam in all positions of said panels.
  • a folding closure comprising a pair of panels having spaced inner and outer surfaces, a hinge connecting adjacent ends of saidv panels for rotation around an axis adjacent to said inner surfaces between la first aligned position and a second position 90 of relative rotation from said first position, an elongated link, a pivot connecting said link to one of said panels adjacent to the outer surface and adjacent end thereof, a cam on the other of said panels extending beyond said adjacent end thereof, a cam follower on said link in guided engagement with said cam, and fluid motor means connected between said link and other panel operable to move said follower along said cam, a line connecting said pivot and follower being inclined relative to said cam in all positions of said panels.
  • a folding closure comprising a pair of panels having spaced inner and outer surfaces, a hinge connecting adjacent ends of said panels for rotation around an axis adjacent to said inner surfaces between a first aligned position and a second position 90 of relative rotation from said first position, an elongated link, a pivot connecting said link to one of said panels at a point spaced from said hinge, a cam on the other of said panels extending beyond said adjacent end thereof, a cam follower on said link in guided engagement with said cam, and fluid motor meansl connected between said link and other panel operable t0 move said follower along said cam, a line connecting said pivot and follower being inclined relative to said cam in all positions of said panels, and said pivot and follower being substantially adjacent to' said outer Ysurfaces when said panels are in said aligned position.
  • a folding closure comprising a pair of panels, a hinge connecting adjacent ends of said panels for relative rotation between'a first aligned position and a second position 90 of relative rotation from said first position, a link, a pivot 4connecting said link to one of said panels at a point spaced from said hinge, a cam on the other of said panels extending beyond said adjacent end thereof, a cam follower on said link in guided engagement with said cam, and motor means connected between said link and other panel operable to move said follower along said cam, said cam being formed with a substantially straight portion adjacent -to said motor land an arcuate portion remote therefrom extending away from said pivot.
  • a folding closure comprising a pair of panels, a hinge connecting adjacent ends of said panels for rotation between a first aligned position and a second position 90 of relative rotation from said iirst position, a fluid motor including piston and cylinder elements movable relative to each other under the influence of fluid under pressure, an elongated link, a first pivot connecting said link to one of said panels at a point spaced from said hinge, a second pivot connecting one of said elements to the other of said panels, a third pivot connecting the other of said elements to said link, and guide means on said other panels engaging said third pivot constraining it to move along a predetermined locus, a line connecting said first and said second pivots being inclined relative to said locus in all positions of said panels.
  • a power actuated hatchcover comprising a horizontal hatchway, first and second panels, a rst hinge connecting adjacent ends of said panels, a second hinge connecting said first panel to one edge of said hatchway, guide means on said second panel movable along said hatchway, a link pivotally connected to one of said panels at a point spaced from said hinge, a cam on the other of said panels extending beyond said adjacent end thereof, a follower on said link in guided engagement with said cam, and a motor operably connected to said follower operable to move it along said cam and produce relative rotation between said panels through 90.
  • a power actuated hatchcover comprising a horizontal hatchway, first and second panels, a first hinge connecting adjacent ends of said panels, a second hinge connecting said first panel to one edge of said hatchway, guide means on said second panel movable along said hatchway, a link pivotally connected to said second panel at a point spaced from said hinge, a cam on said first panel extending beyond said adjacent end thereof, a follower on said link in guided engagement with said cam, and motor means operably connected between said follower and first panel operable to move said follower along said cam and produce relative rotation between said panels through 10.
  • a power actuated hatchcover comprising a horizontal hatchway, first and second panels, a first hinge connecting adjacent ends of said panels for rotation between a first aligned horizontal position and a second vertical position, a second hinge connecting said first panel to one edge of said hatchway, guide means on said second panel movable along said hatchway, a fluid motor including piston and cylinder elements movable relative to each other under the influence of fluid under pressure, an elongated link, a first pivot connecting said link to one ofsaid panels at a point adjacent to said adjacent end thereof and spaced from said hinge, a second pivot connecting one of said elements to the other of said panels, a third pivot connecting the other of said elements to said link, and guide means on the other of said panels engaging said third pivot constraining it to move along a predetermined locus, a line connecting said first and said second pivots being inclined relative to said locus in all positions of said panels.

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Power-Operated Mechanisms For Wings (AREA)
US704581A 1957-12-23 1957-12-23 Power actuated hatchcover Expired - Lifetime US2906325A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US704581A US2906325A (en) 1957-12-23 1957-12-23 Power actuated hatchcover
BE681799D BE681799A (de) 1957-12-23 1966-05-31

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US704581A US2906325A (en) 1957-12-23 1957-12-23 Power actuated hatchcover

Publications (1)

Publication Number Publication Date
US2906325A true US2906325A (en) 1959-09-29

Family

ID=24830098

Family Applications (1)

Application Number Title Priority Date Filing Date
US704581A Expired - Lifetime US2906325A (en) 1957-12-23 1957-12-23 Power actuated hatchcover

Country Status (2)

Country Link
US (1) US2906325A (de)
BE (1) BE681799A (de)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1457907A (en) * 1919-10-08 1923-06-05 Heisler Frederick Wm Crane-door-operating mechanism
GB409231A (en) * 1933-11-08 1934-04-26 Fredrik Georg Gade Improvements in hatch covers for vessels
US2351285A (en) * 1942-10-20 1944-06-13 John B Parsons Window regulator mechanism
US2664947A (en) * 1950-12-11 1954-01-05 Goetaverken Ab Operating device for hold hatches

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1457907A (en) * 1919-10-08 1923-06-05 Heisler Frederick Wm Crane-door-operating mechanism
GB409231A (en) * 1933-11-08 1934-04-26 Fredrik Georg Gade Improvements in hatch covers for vessels
US2351285A (en) * 1942-10-20 1944-06-13 John B Parsons Window regulator mechanism
US2664947A (en) * 1950-12-11 1954-01-05 Goetaverken Ab Operating device for hold hatches

Also Published As

Publication number Publication date
BE681799A (de) 1966-11-30

Similar Documents

Publication Publication Date Title
US4778109A (en) Adjustable two dimensional nozzle for aircraft jet engines
US5333920A (en) Panel for closing an opening, and clip system for use as a part thereof
US4601446A (en) Aircraft door counterbalance system
US2906324A (en) Hatch cover actuator
US2949091A (en) Hatch cover mechanism
US2906325A (en) Power actuated hatchcover
US2855038A (en) Hatch cover assembly
CN109249953A (zh) 低阻力全开式货车顶盖系统
US3368500A (en) Opening and closing device for tiltable roofs of box cars
US2906326A (en) Hatchcover operating system
FI66148B (fi) Anordning foer att styra fartygs daecksluckor eller liknande sammansatta av luckelement
US3811396A (en) Folding cover system for hatches
US3190637A (en) Control device for doors or panels, notably for closing open spaces and the like
US2938579A (en) Hatchcover actuation mechanism
US3362460A (en) Cam controlled folding closure
US3383798A (en) Door construction
US3650221A (en) Hopper car closure actuating mechanism
US3224491A (en) Hatch cover system
US3101026A (en) Retractable spanning rail and blast door arrangement
US3421471A (en) Hatch dogging and sealing mechanism
US3217785A (en) Hatch cover system
US3220467A (en) Hatch cover actuating mechanism
US2981326A (en) Hydraulically-operated ships' hatch covers
US3557738A (en) Closure
US3280892A (en) Hatch cover linkage