US1434567A - Collapsible tiee core - Google Patents

Collapsible tiee core Download PDF

Info

Publication number
US1434567A
US1434567A US1434567DA US1434567A US 1434567 A US1434567 A US 1434567A US 1434567D A US1434567D A US 1434567DA US 1434567 A US1434567 A US 1434567A
Authority
US
United States
Prior art keywords
sections
core
spindle
bracket
collapsible
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of US1434567A publication Critical patent/US1434567A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29DPRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00Producing pneumatic or solid tyres or parts thereof
    • B29D30/06Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/08Building tyres
    • B29D30/10Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
    • B29D30/12Cores

Definitions

  • the invention relates to a core usable in the manufacture of pneumatic tire casings or shoes, and serves as a forming means upon which the casing is bullt up, as 1s well understood in the art,and which invention was originally disclosed in an application by us filed on March 29, 1919, Serial No. 286,117.
  • the object of the present improvement resides in the provision of a sectional core constructed in a manner to permit a part of the sections to be disassembled piecemeal, and a part mechanically operative in unison by a single operation, whereby thecoremay be readily and quickly collapsed to permit the easy removal of the casing, and as readily and quickly restored to its operative form, all with the view of effecting a saving of time and labor as compared with the like factors involved in the use of sectional cores, of which the partsmust all be separately assembled and locked together by the employment of a considerable number of fastening devices, which require a corresponding use of time and labor in the application and removal thereof.
  • Figure 2 is a side elevation of the core proper.
  • Figure 3 is a cross sectional view taken on the line 3-3 of Fig. 2.
  • FIG 4 is a sideelevation of the core, with parts of the core sections removed and the remaining sections moved to collapsed or inoperative position
  • the numeral 1 designates the core proper
  • the reference 4 designates a tubular bracket, which may be supported by a retative arm 5, whereby the bracket may be swung in a vertical plane to permit the core carried thereby to be swung to either a vertical or horizontal position, as may be most convenient for the workman in applying the material in the building up of the casing.
  • a spindle 6 Extending within the tubular bracket for both telescopic and rotative movement with relation thereto is a spindle 6, formed with an annular head 7 at its outer end, corresponding with a similar head Sintegrally formed on the outer end of the bracket.
  • Toggle links 11 are hingedly connected at their outer ends with the lugs of the core sections 3, and their inner, ends likewise connected at their inner ends with the respective bracket and spindle heads in alternate order, whereby a like number of the toggle links will oppose each other in the toggle movement that will obtain byla telescopic movement of the spindle.
  • the links 11 are preferably provided with forked heads 12 adapted to straddle the lugs 10, and
  • removable sections are provided respectively with tongues let and grooves l5, adapted to interengage to prevent lateral misalinement between the sections.
  • the sections 2 are also provided. with endwise extending channel members l6 adapted toi it over the adjoining flange ends of the collapsible sections, and also serving to prevent lateral relative misalinement between the sections.
  • Each of the detachable sections 2 is provided with hook 17, adapted for engagement with an eye 18 on the bracket head 8, which serve to hold the said sections against inward movement under endwise pressure exerted against the same by the collapsible sections in drawing the parts into operative relation, and wl ch also afford a simple means permitting the quick removal of the detachable sections prelim nary to moving the collapsible sections to inoperative position, as illustrated in screw bolt 20 is threaded in the inner end of the bracket 4:, which is adapted to abut the inner end of the spindle 6, and by means of which great pressure may be ap plied endwise of the spindle to draw the core sections into firm engagement, the bolt being formed to provide a crank hande 21 to pernnt rapid manipulation thereof.
  • a similarly formed screw bolt 22 is threaded in the bracket transverse thereof and adapted for loc mg the spindle against rotative movement.
  • a tire core comprising a series of sections in ring form when. assembled, means for supporting and simultaneously moving a part of the sections toward and from a common axis, and detachable sections adapted to be clamped between the movable sections by a contractive movement of the latter.
  • a tire core comprising a series of sections in ring form when assembled, means for supporting and simultaneously moving a part of the sections toward and from a common axis, detachable sections adapted to be clamped between said movable sections by a contractive movement of the latter, and means for holding the detachable sections against inward movement under the influence of such contractive movement.
  • a tire core comprising a series of sec tions in ring form when assembled, a bracket, a spindle telescopically supported by the bracket, toggle links hingedly connected with a part or said sections and with one end of the bracket and spindle, and bodily detachable sections adapted to be clamped between the link connected sections by a movement of the spindle.
  • a tire core comprising a series of sections in ring form when assembled, a bracket, a spindle rotatively and telescopically supported by the bracket, toggle links hingedly connected with a part of said sections and with one end of the bracket and spindle, bodily detachable sections adapted to be clamped between the link connected sections by a movement of the spindle, and means for supporting the detachable sections against inward movement under the said clamping action.
  • a tire core comprising a series of sections in ring form when assembled, a bracket, a spindle telescopically supported by the bracket, toggle links hingedly connected with a part of the sections and with the bracket and spindle, and means for applying endwise pressure to the spindle.
  • a tire core comprising a series of sections in ring form when assembled, a bracket, a spindle telescopically supported by the bracket, toggle links hingedly connected with a part of thesections and with one end of the bracket and spindle, and a pressure screw threaded in the other end of the bracket and adapted to bear against the like end of the spindle.
  • a tire core comprising a series of sections in ring form when assembled, a bracket, a spindle rotatively and telescopically mounted therein, toggle links hingedly connec'ted with a part of the sections and with one end of the bracket and spindle, means for applying endwise pressure to the spindle, and means for locking the spindle against rotation.
  • a tire core comprising a series of sections in ring form when assembled, a brack et, a spindle telescopically carried by the bracket, toggle operated sections having link connections with one end of the bracket and spindle, detachable sections cooperating with the toggle operated sections, means for holding the detachable sections at a given radius with respect to the axis of the bracket and spindle, and means forming an interlocking engagement between the section ends to'prevent relative misalinement thereof.

Description

C. L. SMITH AND E. S.-WEBSTER'.
COLLAPSIBLE TIRE CORE.
APPLICATION HLED JULY 15. 1920.
1,434,567; Patented Nov. 7, 1922.
2 SHEETSSHEET l.
j 527272262255. Maia/Er- C. L. SMITH AND E. S.-WEBSTER.
COLLAPSIBLE TIRE CORE.
APPLICATION FILED JULY 15, 1920.
1,434,567. Patented Nov. 7, 1922.
2 SHEETS-SHEET 2.
r mmez ra. wemzr Mum/ran; 9 26 777540:
Patented Nov. 7, 1922.
UNITED STATES PATENT orrlcs.
CLYDE L. SMITH AND EMMETT S. WEBSTER,DF SOUTH BEND, INDIANA, ASSIGNORS, BY MESNE ASSIGNMENTS, TO SMITH ONE HEAT SYSTEM, OF SOUTH BEND, INDIANA,
A CORPORATION OF INDIANA.
COLLAPSIBLE TIRE CORE.
Continuation of application Serial No. 286,117, filed. March 29, 1919.
1920. Serial No. 396,624.
To all whom it may concern:
Be it known that .WG GLYDE L. SMITH and EMMETT S. WEBSTER, citizens of the United States, residing at South Bend, in the county of St. Joseph and State of Indiana,-have invented certain new and useful Improvements in Collapsible Tire Cores, of which the. following is a specification.
The invention relates to a core usable in the manufacture of pneumatic tire casings or shoes, and serves as a forming means upon which the casing is bullt up, as 1s well understood in the art,and which invention was originally disclosed in an application by us filed on March 29, 1919, Serial No. 286,117.
The object of the present improvement resides in the provision of a sectional core constructed in a manner to permit a part of the sections to be disassembled piecemeal, and a part mechanically operative in unison by a single operation, whereby thecoremay be readily and quickly collapsed to permit the easy removal of the casing, and as readily and quickly restored to its operative form, all with the view of effecting a saving of time and labor as compared with the like factors involved in the use of sectional cores, of which the partsmust all be separately assembled and locked together by the employment of a considerable number of fastening devices, which require a corresponding use of time and labor in the application and removal thereof.
With the above and other objects in view, the invention in the preferred form of details will be described in the following specification, reference being had particularlyto the accompanying drawings, in which- Figure 1 is a top view of the improved core and its cooperating parts.
Figure 2 .is a side elevation of the core proper. v
Figure 3 is a cross sectional view taken on the line 3-3 of Fig. 2.
Figure 4 is a sideelevation of the core, with parts of the core sections removed and the remaining sections moved to collapsed or inoperative position This application filed July 15,
a number 'of like detachable core sections employed.
In the drawings above briefly described,
the numeral 1 designates the core proper,
which may be made of any suitable material, as wood or metal, and comprises detachable sections 2, and collapsible sections 3, all of which, when in operative relation, forming a ring upon which the tire casing is built up in a manner well understood in the art.
The reference 4 designates a tubular bracket, which may be supported by a retative arm 5, whereby the bracket may be swung in a vertical plane to permit the core carried thereby to be swung to either a vertical or horizontal position, as may be most convenient for the workman in applying the material in the building up of the casing. Extending within the tubular bracket for both telescopic and rotative movement with relation thereto is a spindle 6, formed with an annular head 7 at its outer end, corresponding with a similar head Sintegrally formed on the outer end of the bracket. The said heads '7 and 8, as well as the inwardly disposed flanges 9 of the collapsible sections 3 of the core, are provided with complementary apertured lugs 10 relatively arranged in radial alined pairs with respect to the axis of the core. Toggle links 11 are hingedly connected at their outer ends with the lugs of the core sections 3, and their inner, ends likewise connected at their inner ends with the respective bracket and spindle heads in alternate order, whereby a like number of the toggle links will oppose each other in the toggle movement that will obtain byla telescopic movement of the spindle. The links 11 are preferably provided with forked heads 12 adapted to straddle the lugs 10, and
a hinged connection effected therebetween by pivot pins or bolts 13 passed through alined apertures in said parts.
The meeting ends of the collapsible and being parti.
removable sections are provided respectively with tongues let and grooves l5, adapted to interengage to prevent lateral misalinement between the sections. The sections 2 are also provided. with endwise extending channel members l6 adapted toi it over the adjoining flange ends of the collapsible sections, and also serving to prevent lateral relative misalinement between the sections. Each of the detachable sections 2 is provided with hook 17, adapted for engagement with an eye 18 on the bracket head 8, which serve to hold the said sections against inward movement under endwise pressure exerted against the same by the collapsible sections in drawing the parts into operative relation, and wl ch also afford a simple means permitting the quick removal of the detachable sections prelim nary to moving the collapsible sections to inoperative position, as illustrated in screw bolt 20 is threaded in the inner end of the bracket 4:, which is adapted to abut the inner end of the spindle 6, and by means of which great pressure may be ap plied endwise of the spindle to draw the core sections into firm engagement, the bolt being formed to provide a crank hande 21 to pernnt rapid manipulation thereof. A similarly formed screw bolt 22 is threaded in the bracket transverse thereof and adapted for loc mg the spindle against rotative movement.
It will be apparent from the foregoing description that, by slightly retracting the screw bolts 20 and 22, a slight inward movement imparted to the spindle will release the core sections from a binding engagement, whereupon the detachable core sections 2, by releasing the hooks 17, may be readily withdrawn by an inward and outward'movement thereof, the flexibility of the tire cas ing at its open marginal edges permitting the sections to be withdrawn sidewise after ly withdrawn inwardly without injuriousl distorting the casing, so that complete withdrawal o't'the sections will not be interfered with by the proximate toggle links, as so might appear. After removal .of the detachable core sections, an outward pull on the handle 23 carried by the spindle will cause the collapsible sections to be drawn inwardly, shown in Figs. e and 5, so that the tire casing may be easily removed therefrom. it will be apparent that, with the core sections reassembled and endwise pressure applied to the end of the spindle by the screw bolt 22, that said sections will be drawn tightly together at their ends and secnrely held in their proper operative rela-- tion.
While the foregoing is the preferred form. of the invention, we desire it to be understood we do not limit ourselves to the pre cise structure shown and described, as it is obvious that the same may be variously modified without departing from the spirit of the invention.
Having thus described our invention, what is claimed is l. A tire core comprising a series of sections in ring form when. assembled, means for supporting and simultaneously moving a part of the sections toward and from a common axis, and detachable sections adapted to be clamped between the movable sections by a contractive movement of the latter.
2. A tire core comprising a series of sections in ring form when assembled, means for supporting and simultaneously moving a part of the sections toward and from a common axis, detachable sections adapted to be clamped between said movable sections by a contractive movement of the latter, and means for holding the detachable sections against inward movement under the influence of such contractive movement.
A tire core comprising a series of sec tions in ring form when assembled, a bracket, a spindle telescopically supported by the bracket, toggle links hingedly connected with a part or said sections and with one end of the bracket and spindle, and bodily detachable sections adapted to be clamped between the link connected sections by a movement of the spindle.
4. A tire core comprising a series of sections in ring form when assembled, a bracket, a spindle rotatively and telescopically supported by the bracket, toggle links hingedly connected with a part of said sections and with one end of the bracket and spindle, bodily detachable sections adapted to be clamped between the link connected sections by a movement of the spindle, and means for supporting the detachable sections against inward movement under the said clamping action.
A tire core comprising a series of sections in ring form when assembled, a bracket, a spindle telescopically supported by the bracket, toggle links hingedly connected with a part of the sections and with the bracket and spindle, and means for applying endwise pressure to the spindle.
6. A tire core comprising a series of sections in ring form when assembled, a bracket, a spindle telescopically supported by the bracket, toggle links hingedly connected with a part of thesections and with one end of the bracket and spindle, and a pressure screw threaded in the other end of the bracket and adapted to bear against the like end of the spindle.
7. A tire core comprising a series of sections in ring form when assembled, a bracket, a spindle rotatively and telescopically mounted therein, toggle links hingedly connec'ted with a part of the sections and with one end of the bracket and spindle, means for applying endwise pressure to the spindle, and means for locking the spindle against rotation.
8. A tire core comprising a series of sections in ring form when assembled, a brack et, a spindle telescopically carried by the bracket, toggle operated sections having link connections with one end of the bracket and spindle, detachable sections cooperating with the toggle operated sections, means for holding the detachable sections at a given radius with respect to the axis of the bracket and spindle, and means forming an interlocking engagement between the section ends to'prevent relative misalinement thereof.
In testimony whereof we afiix our signatures.
CLYDE L. SMITH.
EMMETT S. WEBSTER.
US1434567D 1900-01-01 Collapsible tiee core Expired - Lifetime US1434567A (en)

Publications (1)

Publication Number Publication Date
US1434567A true US1434567A (en) 1922-11-07

Family

ID=3402836

Family Applications (1)

Application Number Title Priority Date Filing Date
US1434567D Expired - Lifetime US1434567A (en) 1900-01-01 Collapsible tiee core

Country Status (1)

Country Link
US (1) US1434567A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2583650A (en) * 1950-02-25 1952-01-29 Us Rubber Co Collapsible building drum
US2603580A (en) * 1949-07-07 1952-07-15 Us Rubber Co Tire building drum
US2603581A (en) * 1949-12-13 1952-07-15 Us Rubber Co Tire building drum
US2655977A (en) * 1951-09-21 1953-10-20 Us Rubber Co Collapsible building drum
EP0481805A2 (en) * 1990-10-18 1992-04-22 Bridgestone Corporation Methods of producing green case and green tire and tires produced by these methods
US8678520B2 (en) * 2010-08-03 2014-03-25 National Tsing Hua University Foldable wheel
US20180229548A1 (en) * 2015-09-03 2018-08-16 Andrea MOCELLIN A foldable wheel and vehicles equipped with such a wheel

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2603580A (en) * 1949-07-07 1952-07-15 Us Rubber Co Tire building drum
US2603581A (en) * 1949-12-13 1952-07-15 Us Rubber Co Tire building drum
US2583650A (en) * 1950-02-25 1952-01-29 Us Rubber Co Collapsible building drum
US2655977A (en) * 1951-09-21 1953-10-20 Us Rubber Co Collapsible building drum
EP0481805A2 (en) * 1990-10-18 1992-04-22 Bridgestone Corporation Methods of producing green case and green tire and tires produced by these methods
EP0481805A3 (en) * 1990-10-18 1993-02-24 Bridgestone Corporation Methods of producing green case and green tire and tires produced by these methods
US8678520B2 (en) * 2010-08-03 2014-03-25 National Tsing Hua University Foldable wheel
US20180229548A1 (en) * 2015-09-03 2018-08-16 Andrea MOCELLIN A foldable wheel and vehicles equipped with such a wheel

Similar Documents

Publication Publication Date Title
US3405023A (en) Tire building drum
US4436574A (en) Radial mandrel
US3740293A (en) Tire building machine
US3127294A (en) Method and apparatus for building tires
US1434567A (en) Collapsible tiee core
US3787262A (en) Tire building drum
US1341727A (en) Tire-changer
US1996971A (en) Apparatus for vulcaniziing tires
US4402782A (en) Tire building machine
US1835986A (en) Collapsible tire building form
US2971562A (en) Method and apparatus for manufacturing air spring
US2429786A (en) Multiple tire sidewall mold
US2700795A (en) Sectional and collapsible rim for retread vulcanizer air bags
US2597268A (en) Machine for angularly guiding and mounting tires on wheels
US1773430A (en) Apparatus for bending angle irons
US1544011A (en) Tire-mold-handling device
US1896280A (en) Collapsible drum
US2322546A (en) Rim for tire retreading apparatus
US2132834A (en) Tire building form
US2325001A (en) Collapsible form
US1637195A (en) Tire-building machine
US2477718A (en) Device for mounting tire bead rings upon the bead applying annulus of tire building machines
US1792462A (en) Tire-building drum
US1840489A (en) Expansible tire core
US4445963A (en) Belt-tread stock assembly drum