GB2527735A - Lid interlock apparatus - Google Patents

Lid interlock apparatus Download PDF

Info

Publication number
GB2527735A
GB2527735A GB1407879.4A GB201407879A GB2527735A GB 2527735 A GB2527735 A GB 2527735A GB 201407879 A GB201407879 A GB 201407879A GB 2527735 A GB2527735 A GB 2527735A
Authority
GB
United Kingdom
Prior art keywords
latch
interlock
lid
assembly
stay
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.)
Granted
Application number
GB1407879.4A
Other versions
GB201407879D0 (en
GB2527735B (en
Inventor
Martin John Price
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.)
Haigh Engineering Co Ltd
Original Assignee
Haigh Engineering Co Ltd
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 Haigh Engineering Co Ltd filed Critical Haigh Engineering Co Ltd
Priority to GB1407879.4A priority Critical patent/GB2527735B/en
Publication of GB201407879D0 publication Critical patent/GB201407879D0/en
Priority to PCT/GB2015/051300 priority patent/WO2015170079A1/en
Publication of GB2527735A publication Critical patent/GB2527735A/en
Application granted granted Critical
Publication of GB2527735B publication Critical patent/GB2527735B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
    • B02C17/18—Details
    • B02C17/182—Lids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/04—Safety devices
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0002—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets
    • E05B47/0003—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core
    • E05B47/0004—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with electromagnets having a movable core said core being linearly movable
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
    • E05C3/00—Fastening devices with bolts moving pivotally or rotatively
    • E05C3/12—Fastening devices with bolts moving pivotally or rotatively with latching action
    • E05C3/16—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch
    • E05C3/22—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled
    • E05C3/24—Fastening devices with bolts moving pivotally or rotatively with latching action with operating handle or equivalent member moving otherwise than rigidly with the latch the bolt being spring controlled in the form of a bifurcated member
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
    • B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
    • B02C18/16—Details
    • B02C2018/168—User safety devices or measures in shredders
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Closures For Containers (AREA)

Abstract

A lid interlock apparatus comprising a latch assembly having a latch stay 11 arranged to move, e.g. pivot, in a first plane; an interlock assembly having an interlock plate 12 arranged to move, e.g. rotate, in a second plane; wherein the first and second planes are angled, e.g. perpendicular, with respect to one another. Latch plate 17 may include protrusion 19 releasably retaining a rotatable bifurcate latch 10. Preferably interlock plate 12 has blocking protrusion 24 locatable in an aperture (25) in latch stay 11 preventing rotation of the latch stay until the blocking protrusion is rotated to a disengaged position. Also claimed is a lid interlock wherein the latch assembly and interlock assembly are both mounted on a lid assembly.

Description

Lid Interlock Apparatus The present invention relates to locking mechanisms for devices having a lid, and more particularly to an interlock apparatus for a macorator lid.
In this regard, a major safety factor of any macerator due to the fact that they contain blades rotating at high speed (excess of 1000rpm) is a means of latching, locking and interlocking the closure method thus preventing user access during operation.
Existing macerators typically utilize separate locking and interlocking arrangements. In addition certain versions have actuated release mechanisms. In such known arrangements, for example as shown in Figures 1 A, 1 B and 1 C, a locking mechanism including a manual handle 1 and an auto release solenoid 2 control a latch 3, these components being part of lid assembly. A separate interlock mechanism including an interlock solenoid 4 that drives an interlock bar to lock the latch 3 in position, is mounted to the main body of the macerator.
Whilst these types of arrangement are adequate for the purpose, they have disadvantages in space requirements (size), component count (as they are disparate) and require additional assembly (as there are two assemblies to build and fit).
Space is an important issue in the development of macerators as there is a trend to reducing the size of machines as the infrastructure that these machines are being fitted into is being reduced.
The present invention seeks to provide apparatus that alleviates problems associated with such known arrangements.
According to the present invention there is provided lid interlock apparatus comprising:-a latch assembly having a latch stay arranged to move in a first plane; an interlock assembly having an interlock plate arranged to move in a second plane; wherein the first and second planes are angled with respect to one another.
In this way a more compact lid interlock apparatus can be provided.
Preferably, the first and second planes are substantially at 90 degrees to one another. As such, the interlock assembly and the latch assembly can be nested around one another.
Conveniently, the latch interlock plate comprises a locking protrusion arranged to move into and retract from a locking aperture in said latch stay. This provides for an effective locking arrangement.
The latch stay may be pivotally mounted for movement in a substantially vertical plane and where the interlock plate is pivotally mounted for movement in a substantially horizontal plane.
Preferably, the interlock plate is arranged to move through the first plane of movement of the latch stay. As such, this provides for an compact arrangement of components.
Conveniently, the latch assembly further comprises an auto-release solenoid coupled to the latch stay, activation of the auto-release solenoid urging the latch stay to pivot about its pivot.
Preferably, the interlock assembly further comprises an interlock solenoid coupled to the interlock plate, activation of the interlock solenoid urging the interlock plate to pivot about its pivot.
Conveniently, the apparatus further comprises a latch, wherein the latch stay and latch are biased together.
The latch may be independently pivoted, the latch stay and latch having respective protrusions for interlocking engagement.
Preferably, the assembly further comprises a manual release lever. This can as such be activated in the substantially vertical plane of the latch assembly, which is effective for a user.
Further, the latch stay assembly and the interlock plate assembly can be incorporated into a lid for a macerator. Providing both assemblies within the lid assemblies affords a compact arrangement minimizing the footprint of the macerator used therewith.
The present invention also encompasses a macerator lid comprising lid interlock apparatus as set out above.
According to a further aspect of the present invention there is provided a lid interlock apparatus comprising:-a latch assembly having a latch stay arranged to move in a first plane; and an interlock assembly having an interlock plate arranged to move in a second plane; wherein the latch assembly and the interlock assembly are both mounted on a lid assembly, the interlock assembly co-operating with the latch assembly to releasably lock the latch stay of the latch assembly in place.
An embodiment of the present invention will now be described by way of example and with reference to the accompanying drawings, of which:-Figures 1 A, 13 and 1 C show views of a known interlock apparatus; Figures 2A and 2B show perspective views of interlock apparatus of the present invention; Figure 3A shows a perspective cut-away view of an interlock apparatus of the present invention in an open state; Figure 33 shows a plan view from above of the interlock apparatus of the present invention in an open state; Figure 30 shows a cross-sectional view from Figure 3B; Figure 4A shows a perspective cut-away view of the interlock apparatus of the present invention in a locked state; Figure 43 shows a plan view from above of the interlock apparatus of the present invention in a locked state; Figure 40 shows a cross-sectional view from Figure 4B; and Figure 5 shows a perspective cut-away view of the interlock apparatus of the present invention in an un-locking state.
As described above Figures 1 A, 1 B and 10 show a known interlock configuration.
Figures 2A and 2B show the interlock apparatus of the present invention. In this respect, and referring also to Figures 3A to S the various elements include a latch 10, a latch stay 11, an interlock plate 12, an auto-release solenoid 14, an interlock solenoid 15 and a manual release lever 16.
Figures 3 to 5 show an example of the present invention in three respective states.
The interlock apparatus of the present invention comprises various elements mounted on the same component, in this case the lid of a macerator (not shown).
The latch stay 11 is pivotally mounted about pivot 1 7 and the latch 10 is pivotally mounted about pivot 18. The latch and latch stay are biased together by way of one or more springs (not shown) which urge the latch stay and latch into contact.
In this regard, latch stay is urged by said one or more springs to rotate clockwise about pivot 17 such that latch plate head 1 9 slides on latch surface 20.
Solenoid 14 is linked to latch stay 11 and can be activated to pull the latch stay 11 against the force of spring so that it rotates anti-clockwise about pivot 1 7.
Interlock solenoid 15 can control movement of the interlock plate 12 such that the plate can be rotated about a interlock plate pivot 22. As shown in Figures 2A and 2B, when the interlock solenoid 1 5 is energized, it pulls on end 23 of the interlock plate 1 2 which thereby rotates the plate anticlockwise about interlock plate pivot 13, thereby retracting interlock plate locking pin 24 out of latch stay aperture 25 in the latch stay 11. In the "open" state of Figures 3A, 3B and 3C, the latch stay 11 is not locked in position by the interlock plate locking pin 24 and can thereby rotate about its pivot 17.
In the "locked" state of Figures 4A, 4B and 4C, the latch 10 is in the closed position, having engaged with a corresponding locking bar element (not shown) on a macerator main body.
The latch stay 11 is in its natural resting position where it is biased against the latch 10, such that respective locking protrusions 21 and 19 on the latch 10 and latch stay 11 engage, the biasing of the latch and latch stay promoting the interlocking of the protrusions 21 and 19. In this position the auto-release solenoid 14 is not energized.
For unlocking, as shown in Figures 5, the interlock plate locking pin 24 is retracted from latch stay aperture 25 by virtue of the interlock solenoid 15 having been energized, thereby rotating the interlock plate clockwise about pivot 1 3 so that the locking pin 24 retracts from latch stay aperture 25. In this state the latch stay 11 can be moved about its pivot 17 and this can be achieved by manually pushing the lever 16 or energizing the auto-release solenoid 14 so that it pulls on the latch stay 11 causing it to rotate anti-clockwise about pivot 1 7, thereby unlatching protrusions 19 and 21 The coupling 26 between the auto release solenoid 14 and latch stay 11 takes the form of a pin and slot arrangement to allow for movement of the latch stay about its pivot 17 as it is pulled back and sprung forward. The coupling 27 between the interlock plate 12 and the interlock solenoid 15 is similarly configured.
As will be understood, the components are arranged such that the interlock plate moves in a plane normally to a plane of movement of the latch stay.
The latch stay is configured to move in a plane that is normal to the plane in which the interlock plate moves. This allows the components of the latch assembly and the interlock assembly to overlap each other in a nested fashion, all provided in close proximity as part of the lid assembly of a macerator.
The apparatus of the present invention combines these latch and interlock mechanisms into a single, smaller and simplified assembly providing latching, locking and interlocking together with actuated or manual release functions.

Claims (15)

  1. Claims: 1. Lid interlock apparatus comprising:-a latch assembly having a latch stay arranged to move in a first plane; an interlock assembly having an interlock plate arranged to move in a second plane; wherein the first and second planes are angled with respect to one another.
  2. 2. Lid interlock apparatus according to claim 1, wherein the first and second planes are substantially at 90 degrees to one another.
  3. 3. Lid interlock apparatus according to claim 1 or 2, wherein the latch interlock plate comprises a locking protrusion arranged to move into and retract from a locking aperture in said latch stay.
  4. 4. Lid interlock apparatus according to any preceding claim, wherein the latch stay is pivotally mounted for movement in a substantially vertical plane and where the interlock plate is pivotally mounted for movement in a substantially horizontal plane.
  5. 5. Lid interlock apparatus according to claim 4, wherein the interlock plate is arranged to move through the first plane of movement of the latch stay.
  6. 6. Lid interlock apparatus according to any preceding claim, wherein the latch stay assembly further comprises an auto-release solenoid coupled to the latch stay, activation of the auto-release solenoid urging the latch stay to pivot about its pivot.
  7. 7. Lid interlock apparatus according to any preceding claim, wherein the interlock assembly further comprises an interlock solenoid coupled to the interlock plate, activation of the interlock solenoid urging the interlock plate to pivot about its pivot.
  8. 8. Lid interlock apparatus according to any preceding claim, further comprising a latch, wherein the latch stay and latch are biased together.
  9. 9. Lid interlock apparatus according to claim 8, wherein the latch is independently pivoted, the latch stay and latch having respective protrusions for interlocking engagement.
  10. 10. Lid interlock apparatus according to any preceding claim, wherein the latch assembly further comprises a manual release lever.
  11. 11. Lid interlock apparatus according to any preceding claim, wherein the latch stay assembly and the interlock plate assembly are incorporated into a lid for a macerator.
  12. 12. A macerator lid comprising lid interlock apparatus as claimed in any preceding claim.
  13. 13. Lid interlock apparatus comprising:-a latch assembly having a latch stay arranged to move in a first plane; and an interlock assembly having an interlock plate arranged to move in a second plane; wherein the latch assembly and the interlock assembly are both mounted on a lid assembly, the interlock assembly co-operating with the latch assembly to releasably lock the latch stay of the latch assembly in place.
  14. 14. Lid interlock apparatus substantially as hereinbefore described with reference to Figure 2 to 5 of the accompanying drawings.
  15. 1 5. A macerator Lid substantially as hereinbefore described with reference to Figure 2 to 5 of the accompanying drawings.
GB1407879.4A 2014-05-04 2014-05-04 Lid interlock apparatus Active GB2527735B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB1407879.4A GB2527735B (en) 2014-05-04 2014-05-04 Lid interlock apparatus
PCT/GB2015/051300 WO2015170079A1 (en) 2014-05-04 2015-05-01 Lid interlock apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1407879.4A GB2527735B (en) 2014-05-04 2014-05-04 Lid interlock apparatus

Publications (3)

Publication Number Publication Date
GB201407879D0 GB201407879D0 (en) 2014-06-18
GB2527735A true GB2527735A (en) 2016-01-06
GB2527735B GB2527735B (en) 2020-10-28

Family

ID=50980583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1407879.4A Active GB2527735B (en) 2014-05-04 2014-05-04 Lid interlock apparatus

Country Status (2)

Country Link
GB (1) GB2527735B (en)
WO (1) WO2015170079A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6149210A (en) * 1996-12-10 2000-11-21 Atoma International Corporation Hood latch for an engine compartment
GB2358671A (en) * 2000-01-25 2001-08-01 D & D Group Pty Ltd Gate Latch
US20020101313A1 (en) * 2000-12-22 2002-08-01 Albert Dirnberger Apparatus for blocking and releasing a door lock of an electrical appliance
EP1433893A2 (en) * 2002-12-23 2004-06-30 BITRON S.p.A. A door lock device, particularly for domestic electrical appliances
US20060261602A1 (en) * 2005-05-20 2006-11-23 Jankowski Krystof P Inertia catch for door latches

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219755B (en) * 1988-06-16 1992-04-22 Vernon & Company Macerator
BR9006141A (en) * 1990-12-04 1991-04-09 Daimler Benz Brasil LOCK FOR LIDS, DOORS, TILTING AND SIMILAR DRAWERS
US20040212197A1 (en) * 2003-04-22 2004-10-28 Rodney Shoemaker Overhead door locking apparatus and method of operation
US9157261B2 (en) * 2012-05-29 2015-10-13 Carefusion 303, Inc. Multifunction latch assembly

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6149210A (en) * 1996-12-10 2000-11-21 Atoma International Corporation Hood latch for an engine compartment
GB2358671A (en) * 2000-01-25 2001-08-01 D & D Group Pty Ltd Gate Latch
US20020101313A1 (en) * 2000-12-22 2002-08-01 Albert Dirnberger Apparatus for blocking and releasing a door lock of an electrical appliance
EP1433893A2 (en) * 2002-12-23 2004-06-30 BITRON S.p.A. A door lock device, particularly for domestic electrical appliances
US20060261602A1 (en) * 2005-05-20 2006-11-23 Jankowski Krystof P Inertia catch for door latches

Also Published As

Publication number Publication date
GB201407879D0 (en) 2014-06-18
GB2527735B (en) 2020-10-28
WO2015170079A1 (en) 2015-11-12

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