US3811223A - Hatch covers - Google Patents

Hatch covers Download PDF

Info

Publication number
US3811223A
US3811223A US00229684A US22968472A US3811223A US 3811223 A US3811223 A US 3811223A US 00229684 A US00229684 A US 00229684A US 22968472 A US22968472 A US 22968472A US 3811223 A US3811223 A US 3811223A
Authority
US
United States
Prior art keywords
hatch
panel
cover
panels
cover panels
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
US00229684A
Other languages
English (en)
Inventor
Y Ito
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.)
Kk Nihon Hatch Cover Kenkyusho ja
NIHON HATCH COVER KENKYUSHO KK
Original Assignee
NIHON HATCH COVER KENKYUSHO KK
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 NIHON HATCH COVER KENKYUSHO KK filed Critical NIHON HATCH COVER KENKYUSHO KK
Application granted granted Critical
Publication of US3811223A publication Critical patent/US3811223A/en
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
    • B63B19/18—Hatch covers slidable

Definitions

  • ABSTRACT A hatch cover including a multiplicity of relatively narrow cover panels of L-shaped cross-section which are laid over a hatch coaming having a panel storing station at one end thereof, with their longer legs placed side by side horizontally thereon and with their shorter legs depending as skirt portions in batch closing position.
  • a scooping support carriage is provided for supporting the weight of all cover panels loaded thereon in superposed manner while scooping up one panel after the other progressively during a movement of the carriage so as to bring them from a hatch clos ing position to a panel storing position during hatch opening operation, and vice versa.
  • the carriage is provided with cam means for actuating push rod members slidably mounted on each cover panel upwardly so as to elevate an adjoining cover panel at a level higher than that of the former panel as a first move for bringing the latter panel into superposed condition over the former panel, in addition to another cam means for holding all of the cover panels loaded thereon in superposed condition one above the other.
  • the present invention relates to a hatch cover, and more particularly to a hatch cover including a plurality of cover panels of substantially L-shaped cross-section movable between hatch closing and opening positions by means of a support carriage with each panel being loaded on or unloaded from the carriage one after the other during a movement of the carriage.
  • a hatch cover using such a scooping support carriage is known in the prior art.
  • the carriage means for carrying a multiplicity of cover panels of L-shaped cross-section loaded thereon is complicated in its construction and not easily operated.
  • the present invention contemplates to improve the structure and operation of the prior art hatch cover of this kind.
  • a hatch cover having a plurality of narrow cover panels of substantially L-shaped cross-section connected together on horizontal support members on a hatch coaming and each extending laterally with respectto a direction of hatch opening operation, including push rod members slidably mounted on each panel adjacent to a corner portion of the L-shaped cross-section thereof for lifting up an opposed edge of the adjoining panel, and a support carriage located below and connected to one of said cover panels placed adjacent to one end of said hatch coaming in the closed condition and having wheels rolling along rail members on the hatch coaming so as to move said carriage back and forth between said one end and the opposite end of the hatch coaming with said cover panels loaded thereon in superposed manner, said support carriage being provided with first cam means engageable with a skirt portion of each panel and with second cam means for actuating said push rod members on each panel upwardly.
  • FIG. 1 is a plan view showing a hatch opening provided with hatch cover panels according to the present invention
  • FIG. 1A is a section view taken along a line A-A in FIG. 1,
  • FIG. 1B is a section view taken along a line B-B in FIG. 1,
  • FIG. 1C is a section view taken along a line CC in FIG. 1,
  • FIG. ID is a section view taken along a ling D-D in FIG. 1,
  • FIG. 1B is a plan view showing the hatch coaming with cover panels removed
  • FIG. 2A is a side elevation view showing the a support carriage
  • FIG. 2B is a plan view showing the support carriage in FIG. 2A
  • FIG. 3 is a side elevation view showing the cover panels and the support carriage in hatch closing position
  • FIG. 4 is a side elevation view showing the cover panels and the support carriage during hatch opening operation
  • FIG. 5 is a side elevation view showing the cover panels and the support carriage in stored position after hatch opening operation
  • FIG. 6A and 6B are detailed section views in enlarged scale showing an interconnecting means between a pair of adjoining cover panels, FIG. 6A showing the position of an interconnecting pawl member when a hatch opening operation is commenced, and FIG. 6B showingthe position of the same during hatch closing operation,
  • FIG. 7 is a side elevation view showing the position of a plurality of the pawl members duringhatch opening operation
  • FIG. 8 is an end view in enlarged scale showing the relative position of a wing end portion of each panel, a push rod member, and the support carriage,
  • FIG. 9A is a plan view showing another embodiment of interconnecting means between two adjoining panels.
  • FIG. 9B is a plan view in enlarged scale showing the interconnecting means in FIG. 9A.
  • FIG. 9C is a side elevation view in enlarged scale showing the same.
  • FIG. 10 is a view similar to FIG. 8, showing a link member interconnecting two adjacent panels in FIG. 9a,-9b, 9c.
  • each L-shaped cover panel includes a longer leg which constitutes a covering surface for the hatch opening and a shorter leg depending therefrom to form a skirt portion.
  • Each panel is provided adjacent to a corner portion of the L- shaped cross-section with a flat bar 4 so as to support the free edge of the adjoining panel.
  • Movable support carriage or cradle means 5 are placed on horizontal support members 3 on both sides of the hatch coaming 1, as shown in FIG. 1E from which all the cover panels 2A, 2B, 2C, etc2M are removed.
  • the movable support carriage 5 is placed oppositely to the end coaming with its substantial portion located below the extreme left end panel 2A when all the panels are in hatch closing position (SEE FIG. 3).
  • the movable carriage 5 will support all the panels 2A, 2B, 2C Vietnamese which are loaded thereon in superposed manner after scooping up one panel after the other while it makes a transit and bring them to the storing position as shown in FIG. 5 wherein all the panels are removed from the hatch opening.
  • the support carriage 5 is tapered to facilitate a scooping operation and provided with a suitable number of wheels 8, 8 rolling on the hatch coaming 1 and also with first and second cam surface 6 and 7 which will be described in detail hereinafter.
  • the support carriage 5 is connected to the extreme left end cover panel 2A by means of a link member 9 having one end pivotally mounted on the carriage 5 by a pin 10 and the other end pivoted to a lug piece 12 on the cover panel 2A by another pin 1 1. Hence, the carriage 5 will move together with the extreme left end cover panel 2A although the former may be moved slightly with reference to the latter.
  • the link member 9 will raise the panel 2A on the left side and bring it into tilted position as shown in FIG. 5 when the support carriage 5 is moved to the right relative to the panel 2A.
  • Support carriages 5, 5 on both sides are connected together by suitable connecting means, although this means is not shown in the drawmg.
  • push rod members 13A, 13B, 13C are slidably mounted respectively on each cover panels 2A, 2B, 2C, across at both ends thereof adjacent to the corner portions of L-shaped crosssection.
  • the push rod 13A loosely passing through a guide member 14A secured to thecover panel 2A has its upper end in-contact with the lower surface of the left end of the adjoining panel 28 which is placed oppositely to the panel 2A (see FIG. 3).
  • the support carriage 5 is moved to the right from the extreme left end position, that is, the closed position of cover panels in FIG. 3, the push rod 13A will come into contact with the second cam surface 7 of the support carriage Sat panel 2A.
  • FIG. 4 shows the support carriage 5 making a transit and the push rod 138 on the cover panel2B which is pushing up the left end portion of the following panel 2C.
  • a shorter leg or vertical flange of L-shaped cross-section of each panel is provided at both wing ends with notched wing portions 16A, 16B, 16C, I6D Vietnamese as shown in FIG. 8.
  • Those notched wing portions 16A, 16B, 16C Vietnamese will come successively into contact with the first cam. surface 6 of the support carriage 5 at their lower edges when the support carriage 5 moves to the right and then become engaged with stepped edges of the first cam surface 6.
  • Each of these stepped edges of the first cam surface 6 will act as stopper means for preventing. each panel from being pressed unduly to the left by action of the following panels which are superposed thereon.
  • Operative position of the panel 28 with respect to the panel 2A has I been described hereinabove. However, the mutual position during operation is similar between any other pair of adjoining panels, such as panels 2C and 2D.
  • FIG. 5 shows the support carriage 5 carrying all of the cover panels loaded thereon in' the extreme right end position, that is, the panel storing position. In this position, both side notched wing portions 16A, 16B,
  • the extreme right end panel 2M is pivoted about a pin 15, which pivotally mounts the panel 2M on the hatch coaming 1 through intervention of a suitable lug piece 25.
  • a pawl member 17 is provided on each panel 2A, 2B, 2C Vietnamese for interconnecting each of them to the adjoining panel.
  • the pawl member 17, which has a pointed hook end l7N, is slidably inserted into socket means 21 mounted on each panel 2A, 2B, 2C, whil
  • the pawl member 17 is provided adjacent to an upper end thereof with a slot 19, which has a pin member 20 passsed there through.
  • the pin member 20 is secured on a skirt portion 28 of the panel 2A.
  • a coil spring 23 is inserted between a flange portion 22 provide on the pawl member 17 adjacent to a lower end thereof and a lug piece 24 mounted on the skirt portion 28 of the panel 2A, so as to normally urge the pawl member 17 into raised position.
  • the pointed hook end l7N of the pawl member 17 is inserted into an opening 18 on the adjoining-panel 28 provided adjacent toa left edge thereof so as to interconnect the panel, 2A to the panel 2B(FIG. 6A). Since the panel 2A is moved to the right, that is, toward the panel 2B during hatch opening operatiomthe pointed hook end l7N will come into contact with righthand wall surface of the opening 18 as shown in FIG. 6A.
  • the pointed hook end l7N will come into contact with lefthand wall surface of the opening 18 (see FIG. 68). Since the panel 28 is disengaged out of the pointed hook end l7N and superposed over the panel 2A, righthand surface of the pointed hook end l7N is rounded off and the wall surprovided with a complementary slanted wall surface.
  • FIG. 7 shows several cover panels in transit having pawl members 17 as illustrated in FIGS. 6A-and 68. Both panels 2B, 2C are separated away from the pawl members 17 and overlapped on the adjoining lefthand panels.
  • FIG. 8 shows the relative position between the side coaming 1 and the notched wing portions 16A, 16B, 16C, across of each panel.
  • the first cam surface 6 of the support carriage 5 is engaged with.
  • the second cam surface 7 is in contact with lower end of each of push rod members 13A, 13B, 13C, across, as described hereinabove.
  • the pointed hook end l7N of the pawl member 17 is engaged with the opening 18 of the adjoining panel.
  • FIGS. 9A, 9B and 9C show a modified form of the interconnecting means between a pair of adjoining panels.-Each one of cover panels 2A, 2B, 2C, 2D, etc is
  • link bars 26B, 26C, 26D Both ends of each link bar are secured to the skirt portions of two adjoing panels.
  • the link bar 26A is connected at one end to the panel 2A by means of a ring fitting 278 secured to the skirt portion of that panel and at the other end to the adjoining panel 2B by means of a ring fitting 28B secured to the skirt portion of the same panel. Since the link bar 26A is held between skirt portions of two adjoining panels 2A, 2B, which are superposed one above the other, during hatch opening operation, it is provided with an articulated joint 30 so as to accommodate a change of spacing between two skirt portions of adjoining panels. A turnbuckle means 29 is inserted into the link bar 26A so as to adjust the total length of the latter.
  • the support carriage 5 is provided merely with the first and second stepped cam surface 6, 7, eliminating any kind of rotating member, such as rotatable cam means, the handling mechanism for the cover panels will become simple to construct and easy to operate. Therefore, the cost of construction and maintenance can be reduced considerably.
  • a hatch cover for a hatch opening comprising:
  • cover panels disposed in side by side relationship over the hatch opening in a hatch closed position and movable in a direction along the hatch opening into a superposed array at a hatch open position;
  • each of said cover panels including a portion extending downwardly therefrom;
  • a push rod member slidably mounted on each cover panel and disposed beneath an adjoining panel for selectively lifting said adjoining panels
  • a support carriage located below said cover panels and movable in said direction along the hatchopening;
  • said support carriage including cam means sequentially engageable with each of the downwardly depending portions of said cover panels for advancing same toward the hatch open position;
  • said support carriage further including cam means having a sequence of stepped portions descending in the direction toward the hatch open position and being sequentially engageable with each of said push rod members for actuating same into lifting contact with each of said adjoining panels such that the cover panels may be advanced under the lifted adjoining cover panels.
  • a hatch cover for a hatch opening comprising:
  • cover panels disposed in side by side relationship over the hatch opening in a hatch closed position and movable in a direction along the hatch opening into a superposed array at a hatch open position;
  • each of said cover panels including a portion extending downwardly therefrom;
  • a push rod member slidably mounted on each cover panel and disposed beneath an adjoining panel for selectively lifting said adjoining panels
  • a support carriage located below said cover panels and movable in said direction along the hatch opening;
  • said support carriage including cam means having a sequence of stepped portions descending in the direction toward the hatch open position and being sequentially engageable with each of the downwardly depending portions of said cover panels for advancing same toward the hatch open position; and
  • said support carriage further including cam means sequentially engageable with each of said push rod members for actuating same into lifting contact with each of said adjoining panels such that the cover panels may be advanced under the lifted adjoining cover panels.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Handcart (AREA)
  • Slide Fasteners (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
US00229684A 1971-03-12 1972-02-28 Hatch covers Expired - Lifetime US3811223A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1307671A JPS5427639B1 (xx) 1971-03-12 1971-03-12

Publications (1)

Publication Number Publication Date
US3811223A true US3811223A (en) 1974-05-21

Family

ID=11823050

Family Applications (1)

Application Number Title Priority Date Filing Date
US00229684A Expired - Lifetime US3811223A (en) 1971-03-12 1972-02-28 Hatch covers

Country Status (11)

Country Link
US (1) US3811223A (xx)
JP (1) JPS5427639B1 (xx)
CA (1) CA957272A (xx)
DE (1) DE2210511A1 (xx)
ES (1) ES400690A1 (xx)
FR (1) FR2129585A5 (xx)
GB (1) GB1361884A (xx)
IT (1) IT959554B (xx)
NL (1) NL7203150A (xx)
NO (1) NO130051B (xx)
SE (1) SE382603B (xx)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK141560B (da) * 1978-02-16 1980-04-21 Fabers Fab As C Styre- og føremekanisme for genstande, der kan bevæges langs en skinne, eksempelvis lameller i en persienne for skråvinduer.

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1026417A (en) * 1962-10-02 1966-04-20 Rene Charles Caillet Improvements in or relating to retractable hatch covers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1026417A (en) * 1962-10-02 1966-04-20 Rene Charles Caillet Improvements in or relating to retractable hatch covers

Also Published As

Publication number Publication date
IT959554B (it) 1973-11-10
SE382603B (sv) 1976-02-09
DE2210511A1 (de) 1972-09-21
NO130051B (xx) 1974-07-01
NL7203150A (xx) 1972-09-14
GB1361884A (en) 1974-07-30
FR2129585A5 (xx) 1972-10-27
CA957272A (en) 1974-11-05
JPS5427639B1 (xx) 1979-09-11
ES400690A1 (es) 1975-01-01

Similar Documents

Publication Publication Date Title
IL50083A (en) Transport and display trolleys which can be easily loaded and unloaded in ordered manner
US3018741A (en) Lading separating means
US2915204A (en) Transfer device
US3173556A (en) Method and apparatus for storing bar stock articles
US4862973A (en) Drilling derrick device
US3811223A (en) Hatch covers
NO118539B (xx)
ES413014A1 (es) Perfeccionamientos en los aparatos de manejo de cargas parabuques.
US2850203A (en) False movable bottom for bobbin trucks
US3061855A (en) Dockboard unit
US3127925A (en) Ship's hatch covers
CN206842540U (zh) 一种教学用码垛机
US3105448A (en) Folding table
GB1178582A (en) A device for Unloading Goods from a Pallet and their Transfer to a Conveyor
US3495354A (en) Hatch covers and like closure devices
US3090429A (en) Flap cover devices for closing open spaces such as shiphold hatchways, railway cars, and the like
US2995264A (en) Skip dump having automatic discharge
SU1299494A3 (ru) Устройство дл заполнени сло ми пакетов транспортирующего складского стеллажа
CN107954227B (zh) 适应远洋运输的集装箱抓取系统
US3247982A (en) Apparatus for storing and handling articles
DK159763B (da) Anordning til opdeling af en vaeskelasts frie overflade ved vaesketransport
SU710877A1 (ru) Устройство дл транспортировки штучных грузов
SU1579806A2 (ru) Транспортное средство дл перевозки грузов
US2572873A (en) Retractable pintle rig for laying sheet metal flooring
SU1383700A1 (ru) Пoд'emho-oпуckhoй ctoл