Pivotal guard for punch presses

Claim 2

A guard for machinery comprising means for at least partially encompassing an area into which might be placed the hand of a worker, said area encompassing means includes a pivotal section, means mounting said pivotal section for free pivotal movement about a generally horizontal axis, first means for abuttingly stopping the pivotal movement of said pivotal section beyond a certain position during its pivoting movement in a direction toward said area, and second means for abuttingly stopping the pivotal movement of said pivotal section during its pivoting movement in a direction away from said area.

Claim 3

The guard as defined in claim 1 wherein said pivotal section has upper and lower portions, and said mounting means pivotally mounts said upper portion whereby said lower portion is stopped by said first and second abuttingly stopping means in said directions toward and away from said area.

Claim 4

The guard as defined in claim 1 wherein the first and second abuttingly stopping means combiningly stop the pivotal movement of said section at generally 15*.

Claim 5

The guard as defined in claim 1 wherein said area encompassing means includes a pair of side guard sections spanned by said pivotal section, each side guard section includes a bore, said pivotal section including a rod having opposite terminal ends each received in one of said bores whereby said bores and ends define said pivotal mounting means, and said first and second abuttingly stopping means is defined by cooperative abutment means carried by at least one of said ends and the side guard section journalling said last-mentioned end.

Claim 6

A guard for machinery comprising means for at least partially encompassing an area into which might be placed the hand of a worker, said area encompassing means includes a pivotal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, means for restricting the pivotal movement of said pivotal section during its pivoting movement in a direction away from said area said area encompassing means includes a pair of side guard sections spanned by said pivotal section, each side guard section includes a bore, said pivotal section including a rod having opposite terminal ends each received in one of said bores whereby said bores and ends define said pivotal mounting means, said restricting means is defined by cooperative abutment means carried by at least one of said ends and the side guard section journalling said last-mentioned end, said abutment means of said one end is an arm carried thereby disposed transverse to the axis of said rod, and said abutment means of said last-mentioned side guard is disposed in the path of pivotal movement of said arm results in the aforementioned restricted pivotal movement of said pivotal section.

Claim 7

A guard for machinery comprising means for at least partially encompassing an area into which might be placed the hand of a worker, said area encompassing means includes a pivotal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, means for restricting the pivotal movement of said pivotal section during its pivoting movement in a direction away from said area said area encompassing means includes a pair of side guard sections spanned by said pivotal section, each side guard section includes a bore, said pivotal section including a rod having opposite terminal ends each received in one of said bores whereby said bores and ends define said pivotal mounting means, said restricting means is defined by cooperative abutment means carried by at least one of said ends and the side guard section journalling said last-mentioned end, said abutment means of said one end is an arm carried thereby disposed transverse to the axis of said rod, and said abutment means of said last-mentioned side guard is disposed in the path of pivotal movement of said arm results in the aforementioned restricted pivotal movement of said pivotal section.

Claim 8

The guard as defined in claim 5 including means for precluding pivotal movement of said section beyond a certain position in a direction toward said area, and said precluding means is other abutment means carried by said last-mentioned side guard disposed in the path of pivotal movement of said arm whereby contact between said other abutment means and said arm results in the aforementioned precluded pivotal movement of said section beyond said certain position.

Claim 9

A guard for machinery comprising means for at least partially encompassing an area into which might be placed the hand of a worker, said area encompassing means includes a pivotal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, first means for abuttingly stopping the pivotal movement of said pivotal section beyond a certain position during its pivoting movement in a direction away from said area, and second means for biasing said pivotal section in a direction away from said certain position.

Claim 10

A guard for machinery comprising means for at least partially encompassing an area into which might be placed the hand of a worker, said area encompassing means includes a pivotal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, first means for abuttingly stopping the pivotal movement of said pivotal section beyond a certain position during its pivoting movement in a direction away from said area, and second means for biasing said pivotal section in a direction away from said certain position.

Claim 11

The guard as defined in claim 1 wherein said area encompassing means includes a pair of side guard sections spanned by said pivotal section, each side guard section includes a bore, said pivotal section including a rod having opposite terminal ends each received in one of said bores whereby said bores and ends define said pivotal mounting means, and said first and second abuttingly stopping means is defined by cooperative abutment means carried by at least one of said ends and the side guard section journalling said last-mentioned end.

Claim 12

The guard as defined in claim 8 including means for biasing said pivotal section to said certain position.

Claim 13

The guard as defined in claim 8 wherein said abutment means of said one end is an arm carried thereby disposed transverse to the axis of said rod, and said abutment means of said last-mentioned side guard is disposed in the path of pivotal movement of said arm whereby contact between said abutment means and said arm results in the aforementioned restricted pivotal movement of said pivotal section.

Claim 14

A combination comprising a machine bed, a bolster plate adapted to receive a die thereon, means for guiding said bolster plate into and out of a work area into which might be placed the hand of a worker, means for at least partially encompassing said work area, said area encompassing means includes a pivotal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, first means for abuttingly stopping the pivotal movement of said pivotal section beyond a certain position during its pivoting movement in a direction toward said area, and second means for abuttingly stopping the pivotal movement of said pivotal section during its pivoting movement in a direction away from said area.

Claim 15

A combination comprising a machine bed, a bolster plate adapted to receive a die thereon, means for guiding said bolster plate into and out of a work area into which might be placed the hand of a worker, means for at least partially encompassing said work area, said area encompassing means includes a pivotal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, first means for abuttingly stopping the pivotal movement of said pivotal section beyond a certain position during its pivoting movement in a direction toward said area, and second means for abuttingly stopping the pivotal movement of said pivotal section during its pivoting movement in a direction away from said area.

Claim 16

The combination as defined in claim 11 wherein said work area encompassing means includes a pair of side guard sections spanned by said pivotal section, each side guard section includes a bore, said pivotal section includes a rod having opposite terminal ends each received in one of said bores whereby said bores and ends define said pivotal mounting means, and said first and second abuttingly stopping means is defined by cooperative abutment means carried by at least one of said ends and the side guard section journalling said last-mentioned end.

Claim 17

The combination as defined in claim 11 including means for precluding pivotal movement of said pivotal section beyond a certain position in a direction toward said work area.

Claim 18

A combination comprising a machine bed, a bolster plate adapted to receive a die thereon, means for guiding said bolster plate into and out of a work area into which might be placed the hand of a worker, means for at least partially encompassing said work area, said area encompassing means includes a pivoTal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, means for restricting the pivotal movement of said pivotal section during its pivoting movement in a direction away from said area said work area encompassing means includes a pair of side guard sections spanned by said pivotal section, each side guard section includes a bore, said pivotal section includes a rod having opposite terminal ends each received in one of said bores whereby said bores and ends define said pivotal mounting means, said restricting means is defined by cooperative abutment means carried by at least one of said ends and the side guard section journalling said last-mentioned end, said abutment means of said one end is an arm carried thereby disposed transverse to the axis of said rod, and said abutment means of said last-mentioned side guard is disposed in the path of pivotal movement of said arm whereby contact between said abutment means and said arm results in the aforementioned restricted pivotal movement of said pivotal action.

Claim 19

A combination comprising a machine bed, a bolster plate adapted to receive a die thereon, means for guiding said bolster plate into and out of a work area into which might be placed the hand of a worker, means for at least partially encompassing said work area, said area encompassing means includes a pivoTal section, means mounting said pivotal section for pivotal movement about a generally horizontal axis, means for restricting the pivotal movement of said pivotal section during its pivoting movement in a direction away from said area said work area encompassing means includes a pair of side guard sections spanned by said pivotal section, each side guard section includes a bore, said pivotal section includes a rod having opposite terminal ends each received in one of said bores whereby said bores and ends define said pivotal mounting means, said restricting means is defined by cooperative abutment means carried by at least one of said ends and the side guard section journalling said last-mentioned end, said abutment means of said one end is an arm carried thereby disposed transverse to the axis of said rod, and said abutment means of said last-mentioned side guard is disposed in the path of pivotal movement of said arm whereby contact between said abutment means and said arm results in the aforementioned restricted pivotal movement of said pivotal action.

Claim 20

The combination as defined in claim 14 means for precluding pivotal movement of said section beyond a certain position in a direction toward said area, and said precluding means is other abutment means carried by said last-mentioned side guard disposed in the path of pivotal movement of said arm whereby contact between said other abutment means and said arm results in the aforementioned precluded pivotal movement of said section beyond said certain position.