WO2006094734A1 - Carriage for cuspidal or convex-profiled guides with auto-aligning effect - Google Patents

Carriage for cuspidal or convex-profiled guides with auto-aligning effect Download PDF

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Publication number
WO2006094734A1
WO2006094734A1 PCT/EP2006/002013 EP2006002013W WO2006094734A1 WO 2006094734 A1 WO2006094734 A1 WO 2006094734A1 EP 2006002013 W EP2006002013 W EP 2006002013W WO 2006094734 A1 WO2006094734 A1 WO 2006094734A1
Authority
WO
WIPO (PCT)
Prior art keywords
wheels
carriage
fact
wheel
flat surface
Prior art date
Application number
PCT/EP2006/002013
Other languages
French (fr)
Inventor
Carlo Maria Palmiero
Original Assignee
T Race S.P.A.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by T Race S.P.A. filed Critical T Race S.P.A.
Publication of WO2006094734A1 publication Critical patent/WO2006094734A1/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/18—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of unsaturated nitriles, e.g. polyacrylonitrile, polyvinylidene cyanide
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C29/00—Bearings for parts moving only linearly
    • F16C29/04—Ball or roller bearings
    • F16C29/045—Ball or roller bearings having rolling elements journaled in one of the moving parts

Definitions

  • the present invention relates to a carriage for cuspidal or convex-profiled guides with auto-aligning effect.
  • Rendered integral to the carriages are parts of machines or units which must translate on a fixed structure, fastened onto which are one or more guides.
  • the present invention refers in particular to carriages suitable for running along convex-profiled or cuspidal guides or guides which are convex in a semicircular manner.
  • the carriages In the case of carriages running along two guides, the carriages must overcome two inevitable alignment errors in positioning the guides: alignment errors between the parallel guides due to relatively inaccurate structures, such as the framework, or deformations due to load or temperature variations; guide coplanarity errors along the transversal section. Disclosure of Invention
  • the aim of this invention is to overcome the aforesaid drawbacks by- making available a carriage able to overcome the two problems mentioned briefly above while using a standard type of cuspidal profiled guides or, in any case, convex-profiled guides of a standard type, used for all the applicative solutions with overhanging loads or with loads suspended between the two parallel guides or with two guides with running axes on two perpendicular planes.
  • the carriage envisages: at least two first wheels with a concave profile constituted of two lateral joined surfaces converging towards a flat surface parallel to the wheel's rotation axis, the rotation axes of the said two first wheels being positioned on a same plane parallel to the carriage's translation axis; at least one second wheel, positioned between the previous two first wheels, with a concave profile constituted of two lateral surfaces converging towards and joined to a flat surface which is wider than the flat surface of the at least two previous first wheels, said at least one second wheel having its rotation axis positioned above or beneath the rotation axes of the two first wheels.
  • - figure 2 shows the carriage in a frontal, lateral view in an application with two couples of three opposing wheels;
  • - figures 3 and 4 show a lateral view of, respectively, one of the two first wheels and one of the second wheels;
  • FIG. 5 shows a carriage in a particular application for telescopic guides
  • FIG. 6 shows a carriage in a further embodiment depending on a particular arrangement of the guides over two perpendicular planes
  • FIG. 7 shows the profile of one of the second wheels according to a possible embodiment variant.
  • the carriage as a whole is indicated with 1 and it is constituted of a body 2 which supports three or five wheels.
  • the carriage is suitable for running along a double-cuspidal guide or, in any case, one with a convex, centrally symmetrical profile or, in accordance with the commonly known technique, with a circular arced profile obtained by fitting a circular section bar to act as the running profile for the wheels.
  • the groove-profiled wheels are of two types: two first wheels 3, with a concave profile, are supported by rotation pins whose axes 3a are positioned on a same plane parallel to the carriage's translation axis; a second wheel 4 with a concave profile, positioned between the two first wheels 3, whose rotation axis 4a is positioned above the rotation axis 3a of the first wheels 3.
  • each of said first wheels 3 features a concave profile constituted of two lateral surfaces 5a converging towards a flat surface 5b parallel to the wheel's rotation axis.
  • the second wheel 4 with a concave profile, features two lateral surfaces 6a, converging towards a flat surface 6b which is wider than the flat surface 5b of the wheels 3.
  • the first wheels feature, with respect to the running guides, such a configuration that allows only rotations of the carriage about the running axis, while the second wheel allows translations of the body 2 in a perpendicular direction to aforesaid running axis, all of which allows, in the embodiment in figure 1, a rotation of the carriage. More precisely, the carriage in figure 1 allows the correction of the parallelism error between the resting surface 10 of a guide along which the carriage runs and the resting surface 11 of the carriage.
  • the carriage can envisage five wheels, and more precisely, three first wheels 3 and two second wheels 4 intercalated between the wheels 3 or several grooved wheels.
  • the carriage whose body 2 is constituted of a portal to the vertical walls of which are fastened two couples of three wheels like those described above; the two couples are suitable for running along the two parallel guides 7 featuring convex profiles which fit into the grooved wheels. More precisely, one of said couples of wheels (for example the right- hand one in figure 2), has an identical arrangement to the one described above, while that on the left-hand side features three second wheels 4 with a wider flat surface 6a.
  • the carriage can compensate the longitudinal parallelism errors of the guides and overcome the coplanarity problems of the guides on the transversal section.
  • the figure shows a carriage constituted of a body 2 shaped to allow the running of the said carriage along two guides disposed over perpendicular planes; the arrangement of the wheels on the body is identical to that in figure 2.
  • the number of first wheels and the number of second wheels to apply to the carriage which can assume diverse forms, can vary as desired on the condition that the second wheels 4 with the wider flat surface 6a are all on the same guide track.
  • Figure 7 shows a particular of one of the second wheels in which the wide surface 6c is slightly convex rather than flat to prevent excessive carriage thrusts on the guides when the carriage is subject to rotations as a result of incorrect positioning of the guides.

Abstract

The invention relates to the field of rolling linear bearings, and more precisely, to a carriage with an auto-aligning effect suitable for running along cuspidal or convex-profiled guides. The carriage also finds application in the realization of telescopic guides. The carriage envisages at least three wheels with a concave profile constituted of two lateral surfaces converging towards and joined to a flat surface parallel to the wheels' rotation axes; at least one of the said wheels features a flat surface which is larger than the others' flat surface and its axis is located above or beneath the rotation axes of the other wheels.

Description

DESCRIPTION
CARRIAGE FOR CUSPIDAL OR CONVEX-PROFILED GUIDES WITH AUTO-ALIGNING EFFECT.
Technical field
The present invention relates to a carriage for cuspidal or convex-profiled guides with auto-aligning effect.
Background Art
There exist commonly known carriages equipped with wheels suitable for running along fixed guides or telescopic guides.
Rendered integral to the carriages are parts of machines or units which must translate on a fixed structure, fastened onto which are one or more guides.
The present invention refers in particular to carriages suitable for running along convex-profiled or cuspidal guides or guides which are convex in a semicircular manner. In the case of carriages running along two guides, the carriages must overcome two inevitable alignment errors in positioning the guides: alignment errors between the parallel guides due to relatively inaccurate structures, such as the framework, or deformations due to load or temperature variations; guide coplanarity errors along the transversal section. Disclosure of Invention
The aim of this invention is to overcome the aforesaid drawbacks by- making available a carriage able to overcome the two problems mentioned briefly above while using a standard type of cuspidal profiled guides or, in any case, convex-profiled guides of a standard type, used for all the applicative solutions with overhanging loads or with loads suspended between the two parallel guides or with two guides with running axes on two perpendicular planes.
These and other aims are fully achieved by means of the carriage for cuspidal or convex-profiled guides and with auto-aligning effect, subject of the present invention, incorporating the characteristics of the annexed claims, and in particular, due to the fact that the carriage envisages: at least two first wheels with a concave profile constituted of two lateral joined surfaces converging towards a flat surface parallel to the wheel's rotation axis, the rotation axes of the said two first wheels being positioned on a same plane parallel to the carriage's translation axis; at least one second wheel, positioned between the previous two first wheels, with a concave profile constituted of two lateral surfaces converging towards and joined to a flat surface which is wider than the flat surface of the at least two previous first wheels, said at least one second wheel having its rotation axis positioned above or beneath the rotation axes of the two first wheels.
These and further characteristics will better emerge from the description that follows of a preferred embodiment, provided in the form of a non- limiting example, with reference to the accompanying drawings, in which: - figure 1 shows a carriage in a frontal, lateral view, in a preferred embodiment with three wheels;
- figure 2 shows the carriage in a frontal, lateral view in an application with two couples of three opposing wheels; - figures 3 and 4 show a lateral view of, respectively, one of the two first wheels and one of the second wheels;
- figure 5 shows a carriage in a particular application for telescopic guides;
- figure 6 shows a carriage in a further embodiment depending on a particular arrangement of the guides over two perpendicular planes;
- figure 7 shows the profile of one of the second wheels according to a possible embodiment variant.
With reference to figure 1, note that the carriage as a whole is indicated with 1 and it is constituted of a body 2 which supports three or five wheels.
All the wheels have grooved profiles.
The carriage is suitable for running along a double-cuspidal guide or, in any case, one with a convex, centrally symmetrical profile or, in accordance with the commonly known technique, with a circular arced profile obtained by fitting a circular section bar to act as the running profile for the wheels.
With reference to figures 3 and 4, note that the groove-profiled wheels are of two types: two first wheels 3, with a concave profile, are supported by rotation pins whose axes 3a are positioned on a same plane parallel to the carriage's translation axis; a second wheel 4 with a concave profile, positioned between the two first wheels 3, whose rotation axis 4a is positioned above the rotation axis 3a of the first wheels 3.
As can be seen more clearly in figures 3 and 4, each of said first wheels 3 features a concave profile constituted of two lateral surfaces 5a converging towards a flat surface 5b parallel to the wheel's rotation axis.
The second wheel 4, with a concave profile, features two lateral surfaces 6a, converging towards a flat surface 6b which is wider than the flat surface 5b of the wheels 3. The first wheels feature, with respect to the running guides, such a configuration that allows only rotations of the carriage about the running axis, while the second wheel allows translations of the body 2 in a perpendicular direction to aforesaid running axis, all of which allows, in the embodiment in figure 1, a rotation of the carriage. More precisely, the carriage in figure 1 allows the correction of the parallelism error between the resting surface 10 of a guide along which the carriage runs and the resting surface 11 of the carriage.
The carriage, according to a further embodiment not shown, can envisage five wheels, and more precisely, three first wheels 3 and two second wheels 4 intercalated between the wheels 3 or several grooved wheels.
With reference to figure 2, note the carriage, whose body 2 is constituted of a portal to the vertical walls of which are fastened two couples of three wheels like those described above; the two couples are suitable for running along the two parallel guides 7 featuring convex profiles which fit into the grooved wheels. More precisely, one of said couples of wheels (for example the right- hand one in figure 2), has an identical arrangement to the one described above, while that on the left-hand side features three second wheels 4 with a wider flat surface 6a. In the exemplary embodiment in figure 2, the carriage can compensate the longitudinal parallelism errors of the guides and overcome the coplanarity problems of the guides on the transversal section.
With reference to figure 5, note the carriage with the body 2 adapted for application to a telescopic guide and with the arrangement of the wheels in accordance with figure 1.
With reference to figure 6, the figure shows a carriage constituted of a body 2 shaped to allow the running of the said carriage along two guides disposed over perpendicular planes; the arrangement of the wheels on the body is identical to that in figure 2. The number of first wheels and the number of second wheels to apply to the carriage, which can assume diverse forms, can vary as desired on the condition that the second wheels 4 with the wider flat surface 6a are all on the same guide track.
Figure 7 shows a particular of one of the second wheels in which the wide surface 6c is slightly convex rather than flat to prevent excessive carriage thrusts on the guides when the carriage is subject to rotations as a result of incorrect positioning of the guides.

Claims

Claims
1. An auto-aligning carriage for cuspidal or convex-profiled guides of the type comprising a body which supports at least three grooved wheels, characterized by the fact that said carriage envisages: at least two first wheels (3), with a concave profile constituted of two lateral surfaces (5a) converging towards and joined to a flat surface (5b) parallel to the rotation axis (3 a) of the wheel, the rotation axes of said first two wheel being positioned on a same plane parallel to the carriage's translation axis; at least one second wheel (4), positioned between the two first wheels (3), with a concave profile constituted of two lateral surfaces (6a) converging towards and joined to a flat surface (6b) which is wider than the flat surface (5b) of the at least two first wheels (3), said second wheel having its rotation axis positioned above the rotation axis of the two first wheels.
2. A carriage according to claim 1, characterized by the fact that the second wheel (4) has the rotation axis positioned beneath the rotation axis of the two first wheels (3);
3. A carriage according to claim 1, characterized by the fact that said carriage comprises a couple of at least three grooved wheels disposed over two parallel vertical planes of the carriage body; the wheels arranged over one plane being all second wheels (4) and those arranged over the other plane being two first wheels (3) with a second wheel (4) intercalated.
4. A carriage according to claim 1, characterized by the fact that said carriage comprises at least three first wheels and two second wheels arranged intercalated between the first wheels, said second wheels having their rotation axes positioned above or beneath the rotation axis of the first wheels.
5. A carriage according to claim 1, characterized by the fact that the second concave-profiled wheels feature a surface 6c which is slightly convex and greater in width than the flat surface of the first wheels.
6. A carriage according to claims 1 and 3, characterized by the fact that the couple of at least three wheels is positioned over planes that are mutually perpendicular in accordance with the arrangement stated in claim 3.
7. A carriage according to claim 1, characterized by the fact that said carriage comprises a couple of at least three wheels arranged over the frame on opposite sides and on parallel planes to be inserted into telescopic guides; the wheels arranged over each plane being the two first wheels (3) with a second wheel (4) intercalated.
8. A carriage according to the previous claims, characterized by the fact that the second wheels (4) are all arranged over the body of the carriage in order to run along the same guide track.
PCT/EP2006/002013 2005-03-11 2006-03-06 Carriage for cuspidal or convex-profiled guides with auto-aligning effect WO2006094734A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20050386 ITMI20050386A1 (en) 2005-03-11 2005-03-11 GUIDE TROLLEY WITH CUSTOM OR CONVEX PROFILE WITH AUTO ALIGNMENT EFFECT
ITMI2005A000386 2005-03-11

Publications (1)

Publication Number Publication Date
WO2006094734A1 true WO2006094734A1 (en) 2006-09-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/002013 WO2006094734A1 (en) 2005-03-11 2006-03-06 Carriage for cuspidal or convex-profiled guides with auto-aligning effect

Country Status (2)

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IT (1) ITMI20050386A1 (en)
WO (1) WO2006094734A1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009067529A2 (en) * 2007-11-21 2009-05-28 Pacific Bearing Company Multifaceted guide rail, guide assembly and method of forming guide assemblies
ES2322118A1 (en) * 2007-04-18 2009-06-16 Lm Machines Sl Integral linear drive unit. (Machine-translation by Google Translate, not legally binding)
US8684605B2 (en) 2008-03-07 2014-04-01 Pacific Bearing Company Guide rail
EP2910804A1 (en) 2014-02-10 2015-08-26 Nadella S.r.l. Linear guide system with overload protection
EP2790885B1 (en) * 2011-12-16 2020-06-17 Robert Bosch GmbH Tile saw with free-rolling wheels
EP3982449A4 (en) * 2019-06-04 2023-06-28 Mplus Corp Secondary battery manufacturing process carrier having carrier transporting track structure

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998497A (en) * 1974-07-11 1976-12-21 Ricoh Co., Ltd. Guide rod apparatus
DE9300488U1 (en) * 1992-01-16 1993-03-18 Nadella Cuscinetti S.P.A., Milano, It
DE9206710U1 (en) * 1992-05-18 1993-09-16 Boening Edith Linear guide - with double tapered guide rollers with adjustable cones
EP0568852A1 (en) * 1992-05-04 1993-11-10 ROLLON S.p.A. A linear bearing with rolling members consisting of rollers with curved profiles
EP1043510A2 (en) * 1999-04-09 2000-10-11 ROLLON S.p.A. A linear guide to support a sliding element
DE10249978A1 (en) * 2002-10-26 2004-05-13 Ina-Schaeffler Kg Linear guide with u-shaped guide rail

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3998497A (en) * 1974-07-11 1976-12-21 Ricoh Co., Ltd. Guide rod apparatus
DE9300488U1 (en) * 1992-01-16 1993-03-18 Nadella Cuscinetti S.P.A., Milano, It
EP0568852A1 (en) * 1992-05-04 1993-11-10 ROLLON S.p.A. A linear bearing with rolling members consisting of rollers with curved profiles
DE9206710U1 (en) * 1992-05-18 1993-09-16 Boening Edith Linear guide - with double tapered guide rollers with adjustable cones
EP1043510A2 (en) * 1999-04-09 2000-10-11 ROLLON S.p.A. A linear guide to support a sliding element
DE10249978A1 (en) * 2002-10-26 2004-05-13 Ina-Schaeffler Kg Linear guide with u-shaped guide rail

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2322118A1 (en) * 2007-04-18 2009-06-16 Lm Machines Sl Integral linear drive unit. (Machine-translation by Google Translate, not legally binding)
WO2009067529A2 (en) * 2007-11-21 2009-05-28 Pacific Bearing Company Multifaceted guide rail, guide assembly and method of forming guide assemblies
WO2009067529A3 (en) * 2007-11-21 2009-09-24 Pacific Bearing Company Multifaceted guide rail, guide assembly and method of forming guide assemblies
US7752978B2 (en) 2007-11-21 2010-07-13 Pacifiic Bearing Company Multifaceted guide rail, guide assembly and method of forming guide assemblies
US8684605B2 (en) 2008-03-07 2014-04-01 Pacific Bearing Company Guide rail
US9056374B2 (en) 2008-03-07 2015-06-16 Pacific Bearing Company Guide rail and method for manufacturing same
EP2790885B1 (en) * 2011-12-16 2020-06-17 Robert Bosch GmbH Tile saw with free-rolling wheels
EP2910804A1 (en) 2014-02-10 2015-08-26 Nadella S.r.l. Linear guide system with overload protection
US9316261B2 (en) 2014-02-10 2016-04-19 NADELLA S.r.l. Linear guide system
EP3982449A4 (en) * 2019-06-04 2023-06-28 Mplus Corp Secondary battery manufacturing process carrier having carrier transporting track structure

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