Patents by Inventor Leopoldo Lazzarin
Leopoldo Lazzarin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10696357Abstract: A rocker for a bicycle gear that has an inner plate, an outer plate, a pair of pins integral with said inner and outer plates and a pair of toothed wheels arranged between them. Each toothed wheels is rotatably mounted on a respective pin. At least one pin is inserted in non-threaded through holes formed in the inner and outer plates and is defined by a screw with an outer threading and a female screw with an inner threading engaged with the outer threading.Type: GrantFiled: March 10, 2017Date of Patent: June 30, 2020Assignee: Campagnolo S.r.l.Inventors: Leopoldo Lazzarin, Paolo Pasqua, Alessandro Sorio
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Patent number: 10408326Abstract: A sprocket module for a bicycle has at least two sprockets fixedly coupled one another. At least one first sprocket of the at least two sprockets comprises engagement portion to a freewheel body of a hub for a bicycle rear wheel. A second sprocket of the module lacks the engagement portion and is supported on the freewheel body through the aforementioned at least one first sprocket. The module allows strong and low-weight sprocket assemblies to be made.Type: GrantFiled: June 9, 2014Date of Patent: September 10, 2019Assignee: CAMPAGNOLO S.R.L.Inventors: Giuseppe Dal Prà, Leopoldo Lazzarin
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Patent number: 10337599Abstract: A sprocket module for a bicycle has at least two sprockets fixedly coupled one another. At least one first sprocket of the at least two sprockets comprises engagement portion to a freewheel body of a hub for a bicycle rear wheel. A second sprocket of the module lacks the engagement portion and is supported on the freewheel body through the aforementioned at least one first sprocket. The module allows strong and low-weight sprocket assemblies to be made.Type: GrantFiled: June 25, 2014Date of Patent: July 2, 2019Assignee: CAMPAGNOLO S.R.L.Inventors: Giuseppe Dal Prà, Leopoldo Lazzarin
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Publication number: 20170259881Abstract: A rocker for a bicycle gear that has an inner plate, an outer plate, a pair of pins integral with said inner and outer plates and a pair of toothed wheels arranged between them. Each toothed wheels is rotatably mounted on a respective pin. At least one pin is inserted in non-threaded through holes formed in the inner and outer plates and is defined by a screw with an outer threading and a female screw with an inner threading engaged with the outer threading.Type: ApplicationFiled: March 10, 2017Publication date: September 14, 2017Applicant: Campagnolo S.r.l.Inventors: Leopoldo LAZZARIN, Paolo PASQUA, Alessandro SORIO
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Patent number: 9637199Abstract: The present invention refers to a bicycle gearshift with improved precision control, which comprises a kinematic mechanism in the form of a four-bar linkage with a base body and a mobile body connected together through a pair of connecting rods articulated to the base body and to the mobile body at four pin elements, each pair of opposite pin elements of the four pin elements defining a diagonal of the four-bar linkage-kinematic mechanism, the base body comprising a first attachment group to a bicycle frame and the mobile body being connected to a chain guide at a second attachment group, the four-bar linkage-kinematic mechanism being associated with gearshift actuation means suitable for deforming the four-bar linkage-kinematic mechanism so as to determine a displacement of the mobile body with respect to said base body and consequently a primary displacement of the chain guide in the axial direction with respect to the axis (A) of a cogset, at least one from the first attachment group and the second attachmType: GrantFiled: February 21, 2014Date of Patent: May 2, 2017Assignee: Campagnolo S.r.l.Inventors: Paolo Pasqua, Leopoldo Lazzarin
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Patent number: 9550548Abstract: A device for mounting a front derailleur on a bicycle frame is provided. The device comprises engagement means for engaging with at least one toothed crown of a crankset and with the derailleur, the engagement means being configured to obtain a desired relative position between the at least one toothed crown and the derailleur. A method for mounting the front derailleur on the bicycle frame is also provided, such a method providing for the use of the device.Type: GrantFiled: April 18, 2014Date of Patent: January 24, 2017Assignee: Campagnolo S.r.l.Inventor: Leopoldo Lazzarin
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Patent number: 9399501Abstract: The present invention relates to a device for stopping lateral displacement of a bicycle chain. The device comprises a mounting element configured to be mounted on a bicycle frame. The mounting element comprises a first portion configured to be coupled, at a first coupling axis, with a front derailleur of a bicycle, and a second portion configured to be coupled, at a second coupling axis distinct from said first coupling axis, with a stop element that stops the lateral displacement of said chain.Type: GrantFiled: September 26, 2014Date of Patent: July 26, 2016Assignee: Compagnolo S.r.l.Inventors: Leopoldo Lazzarin, Paolo Pasqua
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Publication number: 20150099599Abstract: The present invention relates to a device for stopping lateral displacement of a bicycle chain. The device comprises a mounting element configured to be mounted on a bicycle frame. The mounting element comprises a first portion configured to be coupled, at a first coupling axis, with a front derailleur of a bicycle, and a second portion configured to be coupled, at a second coupling axis distinct from said first coupling axis, with a stop element that stops the lateral displacement of said chain.Type: ApplicationFiled: September 26, 2014Publication date: April 9, 2015Applicant: CAMPAGNOLO S.R.L.Inventors: Leopoldo Lazzarin, Paolo Pasqua
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Publication number: 20150018151Abstract: A sprocket module for a bicycle has at least two sprockets fixedly coupled one another. At least one first sprocket of the at least two sprockets comprises engagement portion to a freewheel body of a hub for a bicycle rear wheel. A second sprocket of the module lacks the engagement portion and is supported on the freewheel body through the aforementioned at least one first sprocket. The module allows strong and low-weight sprocket assemblies to be made.Type: ApplicationFiled: June 25, 2014Publication date: January 15, 2015Applicant: CAMPAGNOLO S.R.L.Inventors: Giuseppe DAL PRÀ, Leopoldo LAZZARIN
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Publication number: 20140315671Abstract: The present invention relates to a device for mounting a front derailleur on a bicycle frame. The device of the invention comprises engagement means for engaging with at least one toothed crown of a crankset and with the derailleur, the engagement means being configured to obtain a desired relative position between the aforementioned at least one toothed crown and the derailleur. The present invention also relates to a method for mounting the front derailleur on the bicycle frame, such a method providing for the use of the aforementioned device.Type: ApplicationFiled: April 18, 2014Publication date: October 23, 2014Applicant: Campagnolo S.r.l.Inventor: Leopoldo LAZZARIN
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Publication number: 20140302956Abstract: A sprocket module for a bicycle has at least two sprockets fixedly coupled one another. At least one first sprocket of the at least two sprockets comprises engagement portion to a freewheel body of a hub for a bicycle rear wheel. A second sprocket of the module lacks the engagement portion and is supported on the freewheel body through the aforementioned at least one first sprocket. The module allows strong and low-weight sprocket assemblies to be made.Type: ApplicationFiled: June 9, 2014Publication date: October 9, 2014Applicant: CAMPAGNOLO S.R.L.Inventors: Giuseppe DAL PRÀ, Leopoldo LAZZARIN
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Patent number: 8821330Abstract: A set of sprockets has a first sprocket with a greater diameter, at least one second sprocket with a smaller diameter and one or more spacer elements operatively arranged between, and in abutment with the sprockets. At least one of the aforementioned sprockets and spacer elements has engagement portions with a freewheel body of a hub of a bicycle rear wheel, the engagement portions defining an ideal circumference for coupling with the freewheel body. The first sprocket rests against the second sprocket, through at least one of the one or more spacer elements, at at least one first contact point arranged at a first radial distance with respect to a longitudinal rotation axis, and at least one second contact point arranged at a second radial distance from the longitudinal rotation axis. The radial distance between the first contact point and the second contact point is at least equal to ? of the radial extension between the circumference and a radially outer end of the second sprocket.Type: GrantFiled: August 7, 2008Date of Patent: September 2, 2014Assignee: Compagnolo S.r.l.Inventors: Giuseppe Dal Pra′, Leopoldo Lazzarin
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Publication number: 20140243129Abstract: The present invention refers to a bicycle gearshift with improved precision control, which comprises a kinematic mechanism in the form of a four-bar linkage with a base body and a mobile body connected together through a pair of connecting rods articulated to the base body and to the mobile body at four pin elements, each pair of opposite pin elements of the four pin elements defining a diagonal of the four-bar linkage-kinematic mechanism, the base body comprising a first attachment group to a bicycle frame and the mobile body being connected to a chain guide at a second attachment group, the four-bar linkage-kinematic mechanism being associated with gearshift actuation means suitable for deforming the four-bar linkage-kinematic mechanism so as to determine a displacement of the mobile body with respect to said base body and consequently a primary displacement of the chain guide in the axial direction with respect to the axis (A) of a cogset, at least one from the first attachment group and the second attachmType: ApplicationFiled: February 21, 2014Publication date: August 28, 2014Applicant: Campagnolo S.r.l.Inventors: Paolo PASQUA, Leopoldo LAZZARIN
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Patent number: 8764594Abstract: A sprocket module for a bicycle has at least two sprockets fixedly coupled one another. At least one first sprocket of the at least two sprockets comprises engagement portion to a freewheel body of a hub for a bicycle rear wheel. A second sprocket of the module lacks the engagement portion and is supported on the freewheel body through the aforementioned at least one first sprocket. The module allows strong and low-weight sprocket assemblies to be made.Type: GrantFiled: August 7, 2008Date of Patent: July 1, 2014Assignee: Campagnolo S.r.l.Inventors: Giuseppe Dal Pra′, Leopoldo Lazzarin
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Patent number: 8166744Abstract: An articulating pin for the links of a bicycle chain, of the type capable to be inserted in aligned holes of an outer link and of the corresponding inner link of the chain, to hinge the links to one another, has a central portion and a distal portion. The distal end is elastically deformable for the insertion through the holes.Type: GrantFiled: March 27, 2009Date of Patent: May 1, 2012Assignee: Campagnolo S.R.L.Inventors: Maurizio Valle, Leopoldo Lazzarin
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Patent number: 8029396Abstract: A derailleur including an articulated quadrilateral mechanism, having four parallel articulation axes is provided. At a first articulation axis, between a fixed member and a first connecting rod, the fixed member includes a first forked structure embracing the first connecting rod. The first forked structure includes two opposite flanges having respective holes aligned along the first articulation axis, and the first connecting rod includes a hole aligned with the first articulation axis. A pin is inserted through the two holes of the first forked structure and the first connecting rod. The use of the fixed member creates a more favorable distribution of the stresses induced in the first connecting rod and the pin by the traction of the derailleur control cable.Type: GrantFiled: May 1, 2008Date of Patent: October 4, 2011Assignee: Campagnolo S.R.L.Inventors: Maurizio Valle, Leopoldo Lazzarin
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Publication number: 20090258742Abstract: An articulating pin for the links of a bicycle chain, of the type capable to be inserted in aligned holes of an outer link and of the corresponding inner link of the chain, to hinge the links to one another, has a central portion and a distal portion. The distal end is elastically deformable for the insertion through the holes.Type: ApplicationFiled: March 27, 2009Publication date: October 15, 2009Applicant: CAMPAGNOLO S.R.L.Inventors: Maurizio Valle, Leopoldo Lazzarin
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Publication number: 20090042681Abstract: A set of sprockets has a first sprocket with a greater diameter, at least one second sprocket with a smaller diameter and one or more spacer elements operatively arranged between, and in abutment with the sprockets. At least one of the aforementioned sprockets and spacer elements has engagement portions with a freewheel body of a hub of a bicycle rear wheel, the engagement portions defining an ideal circumference for coupling with the freewheel body. The first sprocket rests against the second sprocket, through at least one of the one or more spacer elements, at at least one first contact point arranged at a first radial distance with respect to a longitudinal rotation axis, and at least one second contact point arranged at a second radial distance from the longitudinal rotation axis. The radial distance between the first contact point and the second contact point is at least equal to ? of the radial extension between the circumference and a radially outer end of the second sprocket.Type: ApplicationFiled: August 7, 2008Publication date: February 12, 2009Applicant: CAMPAGNOLO S.R.L.Inventors: Giuseppe Dal Pra', Leopoldo Lazzarin
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Publication number: 20090042682Abstract: A sprocket module for a bicycle has at least two sprockets fixedly coupled one another. At least one first sprocket of the at least two sprockets comprises engagement portion to a freewheel body of a hub for a bicycle rear wheel. A second sprocket of the module lacks the engagement portion and is supported on the freewheel body through the aforementioned at least one first sprocket. The module allows strong and low-weight sprocket assemblies to be made.Type: ApplicationFiled: August 7, 2008Publication date: February 12, 2009Applicant: CAMPAGNOLO S.R.L.Inventors: Giuseppe Dal Pra', Leopoldo Lazzarin
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Publication number: 20080274845Abstract: A derailleur including an articulated quadrilateral mechanism, having four parallel articulation axes is provided. At a first articulation axis, between a fixed member and a first connecting rod, the fixed member includes a first forked structure embracing the first connecting rod. The first forked structure includes two opposite flanges having respective holes aligned along the first articulation axis, and the first connecting rod includes a hole aligned with the first articulation axis. A pin is inserted through the two holes of the first forked structure and the first connecting rod. The use of the fixed member creates a more favorable distribution of the stresses induced in the first connecting rod and the pin by the traction of the derailleur control cable.Type: ApplicationFiled: May 1, 2008Publication date: November 6, 2008Applicant: CAMPAGNOLO S.R.L.Inventors: Maurizio Valle, Leopoldo Lazzarin