US 9,809,946 B2
Demolition apparatus
John Van Gemert, Mill (NL); Willem Hooijmans, Maasdriel (NL); Henry Dings, Maasdriel (NL); and Patrick Grant, Tilburg (NL)
Assigned to Caterpillar Work Tools B.V., s-Hertogenbosch (NL)
Appl. No. 14/346,834
Filed by Caterpillar Work Tools B.V., 'S Hertogenbosch (NL)
PCT Filed Oct. 4, 2012, PCT No. PCT/EP2012/069637
§ 371(c)(1), (2) Date Mar. 24, 2014,
PCT Pub. No. WO2013/050482, PCT Pub. Date Apr. 11, 2013.
Claims priority of application No. 11184008 (EP), filed on Oct. 5, 2011.
Prior Publication US 2014/0231564 A1, Aug. 21, 2014
Int. Cl. B02C 1/02 (2006.01); E02F 3/36 (2006.01); B02C 21/02 (2006.01); E02F 3/96 (2006.01)
CPC E02F 3/3686 (2013.01) [B02C 1/02 (2013.01); B02C 21/026 (2013.01); E02F 3/3618 (2013.01); E02F 3/3622 (2013.01); E02F 3/965 (2013.01); Y10T 29/49826 (2015.01)] 3 Claims
OG exemplary drawing
 
1. A demolition apparatus comprising:
a jaw set having a first jaw pivotally connected to a second jaw, the jaw set further comprising a pivot pin and a coupling pin provided on the first jaw;
an adapter frame having a housing provided with spaced-apart first and second coupling seats to engage with the pivot pin and the coupling pin and a cylinder to pivot the second jaw relative to the first jaw;
at least one locking element rotatably supported at the second coupling seat for retaining the coupling pin, the locking element includes a C-shaped retaining member to receive and engage the coupling pin;
wherein a cut-out arc extends along a portion of a circumference of the locking element; and
wherein the cut-out arc is bound by stop limits formed on the locking element wherein the stop limits abut a limit element for restricting the rotation of the locking element.