GB654952A - Improvements in or relating to safety guards for mechanical presses - Google Patents
Improvements in or relating to safety guards for mechanical pressesInfo
- Publication number
- GB654952A GB654952A GB32089/48A GB3208948A GB654952A GB 654952 A GB654952 A GB 654952A GB 32089/48 A GB32089/48 A GB 32089/48A GB 3208948 A GB3208948 A GB 3208948A GB 654952 A GB654952 A GB 654952A
- Authority
- GB
- United Kingdom
- Prior art keywords
- guard
- arm
- stop
- lever
- clutch
- 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
- F16P3/02—Screens or other safety members moving in synchronism with members which move to and fro
- F16P3/04—Screens or other safety members moving in synchronism with members which move to and fro for machines with parts which approach one another during operation, e.g. for stamping presses
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanical Operated Clutches (AREA)
Abstract
654,952. Machinery guards; operating clutches. ATELIERS H. RASKIN. Dec. 11, 1948, No. 32089. Convention date, July 1. [Classes 80(ii) and 80(iv)] In a control mechanism for the safety guard of a mechanical press, a movable member 8 of the guard is connected by links 54, 19 to one arm 20 of a cranked lever pivoted at 23 on the machine frame, tne other arm of which is divided into two branches 21, 22 which are respectively connected to a safety cam 33 and a stop 32 which are arranged m the path of a spring-loaded clutcn actuating arm 30 and are adapted, when the cranked lever is displaced by depression of a rod 25 for moving the guard to its operable position, to be swung in opposite directions to enable the clutch to be spring actuated in the direction which engages the press to operate. The arm 21 is connected by links 27, 28 and 52 to a bush 35 integral with the safety cam 33 and rotatably mounted in a housing 55 secured to the frame of the machine. The stop member 32 is disposed in a recess in the cam 33 and is secured to a shaft 45 disposed within the bush 35 and connected with the lever 22 through links 39, 51, 49. The safety cam 33 and stop 32 are retained in their appropriate positions by springs 37, 41 and a stop 43 against which an extension 42 on member 32 abuts. By virtue of a pin 29 engaging a slot 50 in the member 49, the stop 32 prevents engagement of the clutch until lever 21 has turned through the angle # and the guard member 8 is almost in its closed position. Then, if there is no obstruction to the closure of the member 8, the lever 21 is turned through the angle # and the clutch actuating arm 30 passes between the members 32, 33 and the clutch member 30<SP>1</SP> becomes engaged. A locking cam 31 remains between the members 32, 33 during the working stroke of the slide, and thus prevents any movement of the guard member 8. An inoperative position (shown dotted in Fig. 4), is provided for the arm 3 carrying the movable guard member 8. Removable side guards 17 and a lower front guard 13 are also provided. The guards may be of transparent material in metal frames.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE654952X | 1948-07-01 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB654952A true GB654952A (en) | 1951-07-04 |
Family
ID=3876906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB32089/48A Expired GB654952A (en) | 1948-07-01 | 1948-12-11 | Improvements in or relating to safety guards for mechanical presses |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB654952A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3143957A (en) * | 1962-07-18 | 1964-08-11 | Wm H Welsh Co Inc | Guard |
| DE102010005086B4 (en) | 2010-01-15 | 2018-05-24 | Siemens Aktiengesellschaft | High-voltage bushing |
-
1948
- 1948-12-11 GB GB32089/48A patent/GB654952A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3143957A (en) * | 1962-07-18 | 1964-08-11 | Wm H Welsh Co Inc | Guard |
| DE102010005086B4 (en) | 2010-01-15 | 2018-05-24 | Siemens Aktiengesellschaft | High-voltage bushing |
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