Patent EP0062869A2 successfully refreshed from Google Patents.
EP0062869A2
Expired / Lapsed
EP
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A riveting machine operating through inclined planes for applying a tractive force to a rivet pin
Assignee: OCAP di ALda Galeazzi
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Filing: 1982-04-03
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Granted: —
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Expires: 2002-04-03
Abstract
Abstract A novel riveting machine (10) comprises a conventional pin gripping unit or assembly for gripping a pin (2) of a rivet (1); two elements (34,36) which may be rotated relative to each other; said elements having opposite faces (50, 52) with inclined surfaces; and balls (60) between said inclined surfaces. The mutual rotation of the elements allows for the opening and closing of the gripping jaws on the pin of a rivet and the application of a tractive force to said pin by a limited effort.
Inventors
- 👤 Giovanni Battista Pizzinato
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-26 13:40
CPC Classifications
B; B21; B21J; B21J15/00; B21J15/38; B21J15/386; B21J15/02; B21J15/04; B21J15/043
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
137 words
A riveting machine comprising a sleeve (12) having an aperture for receiving a rivet pin and a spreading element (16) internally of the sleeve about said aperture, a body (14) slidable within the sleeve between an opening condition and a tightening and traction condition, said body including vice jaws (26) which are spring biassed and are open when engaged with said spreading element, and a closing cap (24) for said jaws, characterized in that said sleeve is integral with a first element (34; 74), said body is integral for an axial movement with a second element (36; 76) which is coaxial with said first element, the two elements being relatively rotatable through sloping surfaces (54, 56; 78', 80'), and that the relative movement between said sleeve and said body is provided by relative rotation between said elements.
Claim 2
Dependent Claim
137 words
A riveting machine comprising a sleeve (12) having an aperture for receiving a rivet pin and a spreading element (16) internally of the sleeve about said aperture, a body (14) slidable within the sleeve between an opening condition and a tightening and traction condition, said body including vice jaws (26) which are spring biassed and are open when engaged with said spreading element, and a closing cap (24) for said jaws, characterized in that said sleeve is integral with a first element (34; 74), said body is integral for an axial movement with a second element (36; 76) which is coaxial with said first element, the two elements being relatively rotatable through sloping surfaces (54, 56; 78', 80'), and that the relative movement between said sleeve and said body is provided by relative rotation between said elements.
Claim 3
Dependent Claim
31 words
A riveting machine according to Claim 1, characterized in that rolling means (60, 82) are interposed between said elements for cooperation with said sloping surfaces (54, 56; 78', 8 0' ).
Claim 4
Dependent Claim
67 words
A riveting machine according to Claim 1, characterized in that said elements are disc elements (34, 36), balls (60) are interposed between said disc elements, and said sloping surfaces (54, 56) are provided in at least one of said discs on the face thereof opposite to the other disc, in form of rolling seats for said balls, said seats having a circular center line and decreasing depth.
Claim 5
Dependent Claim
24 words
A riveting machine according to Claim 1, comprising a spring (48) for pressing said elements against each other, that is to a rest condition.
Claim 6
Dependent Claim
24 words
A riveting machine according to Claim 1, ' characterized in that each said element has for manual operation an extended arm (64) integral therewith.
Claim 7
Dependent Claim
25 words
A riveting machine according to Claim 1, characterized in that the mutual rotation of said elements is provided by pneumatic, or fluid or electrical means.
Claim 8
Dependent Claim
97 words
A riveting machine according to Claim 2, characterized in that said elements (34, 36) are disc elements; said first disc element (34) has an axial tubular extension (44) on the opposite face to the sleeve for being rotatably received in an aperture (46) of the second disc (36); that said body (14) has a tang (32) extended within said axial extension of said second disc element by means of a bearing (38), and that a spring (48) to urge said two disc elements to move near each other is located between said body and first disc element.
Claim 9
Dependent Claim
25 words
A riveting machine according to Claim 1, characterized in that said sloping surfaces are part of a male and female thread on said two elements.
Claim 10
Dependent Claim
29 words
A riveting machine according to Claim 1, characterized in that said sloping surfaces are part of a ball circuit screw coupling (78', 80', 82') provided between said two elements.
Claim 11
Dependent Claim
66 words
A riveting machine according to Claim 1, characterized in that said elements have opposite cylindrical faces (78, 80) in which threads (78', 80') are provided for a ball circuit (82); said body has a tang (32) extended within said elements (74, 76) and secured to said second element through a bearing (38), and that a pressing spring (48) is interposed between said body and first element.
References Cited (Backward Citations)
No citation records indexed.
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