GB1534871A - Access door interlock for machinery - Google Patents
Access door interlock for machineryInfo
- Publication number
- GB1534871A GB1534871A GB219/75A GB21975A GB1534871A GB 1534871 A GB1534871 A GB 1534871A GB 219/75 A GB219/75 A GB 219/75A GB 21975 A GB21975 A GB 21975A GB 1534871 A GB1534871 A GB 1534871A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lid
- bolt
- handle
- switch
- order
- 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
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/08—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body in connection with the locking of doors, covers, guards, or like members giving access to moving machine parts
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/42—Safety arrangements, e.g. for stopping rotation of the receptacle upon opening of the casing door
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
1534871 Locks STERLING METALS Ltd 5 Jan 1976 [3 Jan 1975] 219/75 Heading E2A Hasty raising of the lid 2 of a dangerous machine is prevented by making its release an awkward and slow process. The handle 5 of the lid is electrically interlocked with the driving motor by a switch 9, and delay in opening is enforced by means of a manually-operated screw or other impeding mechanism. To close the lid about its hinge 4, the handle is passed downwardly through a gap 6 in the keeper 7 so that in its fully down position a magnetic proximity switch 9 is closed by an armature 10 on the arm. In order to reach this position, the handle has to negotiate a gate in a sliding keeper bolt 12, 13. Initially, this bolt is fully retracted rightward so that the handle clears the end of the part 12 but lands on platform 25 on part 13. In order to allow the bolt to drop right down to energise the switch, the bolt must be manually screwed leftward to a position in which the part 12 prevents the lid being opened. To open the lid, this complicated procedure must be carried out in the reverse order.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB219/75A GB1534871A (en) | 1976-01-05 | 1976-01-05 | Access door interlock for machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB219/75A GB1534871A (en) | 1976-01-05 | 1976-01-05 | Access door interlock for machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1534871A true GB1534871A (en) | 1978-12-06 |
Family
ID=9700519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB219/75A Expired GB1534871A (en) | 1976-01-05 | 1976-01-05 | Access door interlock for machinery |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1534871A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655708A1 (en) * | 1989-12-08 | 1991-06-14 | Nat Essais Lab | Interlocking device for safeguarding access to a dangerous machine |
| EP2371503A3 (en) * | 2010-04-01 | 2014-07-23 | Black & Decker Inc. | Power Tool |
| CN110685503A (en) * | 2019-10-25 | 2020-01-14 | 上海勃傲自动化系统有限公司 | Back locking device of intelligent safety lock |
-
1976
- 1976-01-05 GB GB219/75A patent/GB1534871A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2655708A1 (en) * | 1989-12-08 | 1991-06-14 | Nat Essais Lab | Interlocking device for safeguarding access to a dangerous machine |
| EP2371503A3 (en) * | 2010-04-01 | 2014-07-23 | Black & Decker Inc. | Power Tool |
| CN110685503A (en) * | 2019-10-25 | 2020-01-14 | 上海勃傲自动化系统有限公司 | Back locking device of intelligent safety lock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |