# US 2014/0360358 A1 · Insert for bellows with non-linear compression / expansion in a vacuum powered tool > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0360358 A1 - Document ID: US20140360358A1 - Status: Published application - Kind: A1 - Application number: 14/241,180 - Filed: 2012-09-20 - Published: 2014-12-11 - Earliest claimed: 2011-10-25 - Assignees: Xerex AB - Applicants: Xerex AB - Inventors: Peter Tell - Web page: https://patentgrep.com/patent/US20140360358A1 ## CPC - F16J 3/06: Bellows pistons - B25J 15/0023: {Gripper surfaces directly activated by a fluid (flexible fingers B25J15/12)} - B25J 15/0475: {Exchangeable fingers} - B25J 15/12: with flexible finger members - F16J 3/043: {with particular means for limiting wear} - F16D 3/845: {allowing relative movement of joint parts due to the flexing of the cover} - F16J: PISTONS {(specially adapted for dampers F16F9/32)}; CYLINDERS; SEALINGS - B25J: MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES ({manipulators specially adapted for use in surgery A61B34/70; manipulators used in cleaning hollow articles B08B9/04}; manipulators associated with rolling mills B21B39/20; manipulators associated with forging machines B21J13/10; {manipulators associated with picking-up and placing mechanisms B23P19/007}; means for holding wheels or parts thereof B60B30/00; {vehicles with ground-engaging propulsion means, e.g. walking members B62D57/02, B62D57/032; devices for picking-up and depositing articles or materials between conveyors B65G47/90, B65G47/91; manipulators with gripping or holding means for transferring packages B65H67/065}; cranes B66C; {manipulators used in the protection or supervision of pipe-line installations F17D5/00; walking equipment adapted for nuclear steam-generators F22B37/006}; manipulators specially adapted for, or associated with, nuclear reactors G21C; {apparatus used for handling wafers during manufacture or treatment of semiconductor H10P72/50}) - F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES ## Abstract A bellows insert (25) is shown, mountable inside a bellows for a vacuum powered tool and, in the mounted position, effective to locally limit the capacity of the bellows of compression in its longitudinal direction caused by a negative pressure introduced into the bellows. The bellows insert includes an engagement part (26) that has a shape complementary to the inside of the bellows and that, in the mounted position of the bellows insert, fills up some or all of the pleats of the bellows, within a limited area of the circumference of the bellows. ## Claims ### Claim 1 Bellows insert (25) mountable inside a bellows for a vacuum powered tool and, in the mounted position, effective to locally limit the capacity of the bellows of compression in its longitudinal direction caused by a negative pressure introduced into the bellows, which bellows insert comprises an engagement part (26) that has a shape complementary to the inside of the bellows and that, in the mounted position of the bellows insert, fills up some or all of the pleats of the bellows, within a limited area of the circumference of the bellows, wherein the engagement part (26) extends between a first and a second end, characterized in that the engagement part (26), in said first end, has a fixing member (29) for rotational fixation of the bellows insert in relation to the bellows, said fixing member comprising a pin (29) that is formed with a through channel (28) and, in the mounted position of the bellows insert, formed to be rotationally fixedly received in a vacuum connection implement engaging the bellows. ### Claim 2 (depends on 1) Bellows insert according to claim 1, wherein the pin (29) is carried in the centre of the bellows by a bendable and resilient tongue (27) projecting inward from the first end of the engagement part (26). ### Claim 3 (depends on 1) Bellows insert according to claim 1, wherein the engagement part (26), in said second end, comprises an anchorage member (32) for the axial anchorage of the bellows insert in relation to the bellows in the form of a stiff plate (32) that is coupleable to the free end of the bellows and, via a bendable and resilient hinge (33), connects to the second end of the engagement part (26). ### Claim 4 (depends on 3) Bellows insert according to claim 3, wherein the plate (32) has an attachment (15) for the mounting of an appliance in the bellows insert. ### Claim 5 (depends on 4) Bellows insert according to claim 4, wherein the attachment (15) has a through channel for the supply of negative pressure to the appliance. ### Claim 6 (depends on 1) Bellows insert according to claim 1, wherein the engagement part (26), in a longitudinal cross-section, has a continuous toothed or sinusoidal outside. ### Claim 7 (depends on 1) Bellows insert according to claim 1, wherein the engagement part (26), in a cross-section, has a partly circular outside adapted to the inside of a bellows having a circular cross-section. ### Claim 8 (depends on 1) Bellows insert according to claim 1, wherein the engagement part (26), in a cross-section, has a straight outside adapted to the inside of a bellows having a polygonal cross-section. ### Claim 9 (depends on 1) Bellows insert according to claim 1, formed integrally by casting. ### Claim 10 (depends on 2) Bellows insert according to claim 2, wherein the engagement part (26), in said second end, comprises an anchorage member (32) for the axial anchorage of the bellows insert in relation to the bellows in the form of a stiff plate (32) that is coupleable to the free end of the bellows and, via a bendable and resilient hinge (33), connects to the second end of the engagement part (26).