US1704293A - Collapsible core - Google Patents
Collapsible core Download PDFInfo
- Publication number
- US1704293A US1704293A US747912A US74791224A US1704293A US 1704293 A US1704293 A US 1704293A US 747912 A US747912 A US 747912A US 74791224 A US74791224 A US 74791224A US 1704293 A US1704293 A US 1704293A
- Authority
- US
- United States
- Prior art keywords
- core
- sections
- section
- collapsible
- key section
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/08—Building tyres
- B29D30/10—Building tyres on round cores, i.e. the shape of the core is approximately identical with the shape of the completed tyre
- B29D30/12—Cores
Definitions
- This invention relates to collapsible cores for the. manufacture of pneumatic automobile tires in which the core is provided with collapsing mechanism by which the several sections may be contracted so as to permit the removal of the finished tire casing.
- the object of the present invention is to improve upon prior constructions for this general purpose and to provide a simple, inexpensive and easily operated mechanism for the uses and purposes set forth.
- Figure 1 is a side elevation of the core in assembled condition
- Figure 2 is a similar view showing the core at the completion oi the first-collapsing operation
- Figure 3 is a section on the line 33 of Figure 1; 1
- Figure 4 is a section on the line H of Figure 2;
- Figure 5 is a plan view of the corein collapsible position
- Figure 6 is a section on the line 6--6 of Figure 1;
- Figure 7 is a section on the line 7-7 of Figure 1.
- the present invention is distinguished from prior collapsible cores by the fact that it is comprised of a key section which remains at a fixed distance from the core sup port or shaft and also by reason of the fact that the remaining sections are hinged together so that when collapsed they will form an approximate helix, and that in the collapsed position the key section is rotated about a substantially radial pivot so that it will lie between and parallel to the two hinged sections, the latter being swung upon pivots arranged at an oblique angle to the plane of the core.
- the core support is provided with a shaft 1 which is mounted on the tire machine or core stand and has its outer end secured within a boss 2 on a central core supporting plate 3 which extends outwardly of the core shaft in one direction and carries at its outer end the key section 4.
- the key section is mounted so that it may be rotated about a substantially radial pivot, so that it will be parallel to the hinged sections when the core is collapsed.
- the he section is formed with a centrally located boss or projection from which isextendjeda radial pin 6 which is i'otatablyseated in a socket 8 on the outerend of the central plate 3.
- A. groove 9 is formed about the pin 6 and in this groove is receivedthe end of a pin 10 rigid section 14 by angular hinges 16, the
- angular position of the hinges being such that when the core is collapsed the three sections form an approximate helix.
- the several sections constituting the balance of the core, exclusive of the key section, are carried upon a slide or arm 20 which is secured to the rigidsection 14 by lugs 19 and which is provided with two channels 21 that embrace the edges of the supporting plate 3 so that the hinged sections may be moved as a unit or group to ward or from the center of the core as the first operation in the collapsing ofthe core.
- a slide or arm 20 which is secured to the rigidsection 14 by lugs 19 and which is provided with two channels 21 that embrace the edges of the supporting plate 3 so that the hinged sections may be moved as a unit or group to ward or from the center of the core as the first operation in the collapsing ofthe core.
- one edge of the a supporting plate is formed with a rack 22 and the slide 20 is provided with a pinion 23 which meshes with the rack and may be rotated by a wrench or other suitable mechanism.
- a spring operated pin or catch 25 may be mounted in the slide 20 and is designed to be received in recesses 26 or 27 formed
- the sections 13, 14 and 15 are moved upwardly as a group or unit into the position shown in Figure 2, thus freeing the tire from the key section.
- the key section is then rotated about the radial pivot 6 until it stands in aposition so that it intersects the original core plane and will be approximately parallel to the hinged core sections when the latter are collapsed.
- the sections 13 and 15 are then swung inwardly andthe core is. completely collapsed as shown in Figure 5 whereupon the tiremay be removed from the core.
- the free ends of the sections 13 and 15 may he provided with keys 30 and the ends of the key section with corresponding key Ways 31 so that the core sections will be properly aligned. 7
- a key section and a plurality of sections constituting a group hinged together so as to form an approximate helix in collapsed position, means for moving the group of sections in the plane of the core toward and from the center oil the core, and zt'rudial pivot for the key section.
- :1 ci'illa isible core construction :1 key section and a plurality of sections constitutinge group hinged together so its to form an approximate helix in collapsed position, the group of sections being movable in the plane of the core toward and from the center of the core, and a radial pivot for the key section.
- a collapsible core construction at plurality of sections which are hinged together, so that the sections will form an epproximate helix when swung inwardly, and a l-cey section which is rotatable so as to occupy at position between the ends of the hinged sections when the core is circular and to lie between and parallel to the hinged sections when the core is col-lapsed.
Description
o. J. KUHLKE 1,704,293
COLLAPSIBLE cons" 4 Sheets-811' eat 1 Filed Nov. 5, 1924 Amman M5, 1929. o. J. KUHLKE COLLAPSIBLE CORE Filed Nov. 5. 1924 4 Sheets-Sheet 2 A TTORNE Y.
' o. J. KUHLKE 4 1, 93
GOLLAPSIBLB CORE Filed Nov. 5, 1924 4 Sheets- Sheet 4' INVENTOR.
ATTORNEY.
Patented Mar. 5, 1929.
UNITED STATES PATENT it orrrcs:
OTTO J. KUHLKE, OF AKRON, OHIO, ASSIGNOR TO THE KUHLKE MACHINE COMPANY,
OF AKRON, OHIO, A CORPORATION OF OHIO.
COLLAPSIBLE cons.
Application filed November 5, 1924. Serial No. 747312. i
This invention relates to collapsible cores for the. manufacture of pneumatic automobile tires in which the core is provided with collapsing mechanism by which the several sections may be contracted so as to permit the removal of the finished tire casing. The object of the present invention is to improve upon prior constructions for this general purpose and to provide a simple, inexpensive and easily operated mechanism for the uses and purposes set forth.
In the drawings is shown one embodiment of the invention, in which;
Figure 1 is a side elevation of the core in assembled condition;
Figure 2 is a similar view showing the core at the completion oi the first-collapsing operation; I
Figure 3 is a section on the line 33 of Figure 1; 1
Figure 4 is a section on the line H of Figure 2;
Figure 5 is a plan view of the corein collapsible position;
Figure 6 is a section on the line 6--6 of Figure 1; and
Figure 7 is a section on the line 7-7 of Figure 1. a
a The present invention is distinguished from prior collapsible cores by the fact that it is comprised of a key section which remains at a fixed distance from the core sup port or shaft and also by reason of the fact that the remaining sections are hinged together so that when collapsed they will form an approximate helix, and that in the collapsed position the key section is rotated about a substantially radial pivot so that it will lie between and parallel to the two hinged sections, the latter being swung upon pivots arranged at an oblique angle to the plane of the core.
In the drawings the core support is provided with a shaft 1 which is mounted on the tire machine or core stand and has its outer end secured within a boss 2 on a central core supporting plate 3 which extends outwardly of the core shaft in one direction and carries at its outer end the key section 4. In the embodiment of the invention here shown, the key section is mounted so that it may be rotated about a substantially radial pivot, so that it will be parallel to the hinged sections when the core is collapsed.
For this purpose, in the resent embodiment of the invention, the he section is formed with a centrally located boss or projection from which isextendjeda radial pin 6 which is i'otatablyseated in a socket 8 on the outerend of the central plate 3. A. groove 9 is formed about the pin 6 and in this groove is receivedthe end of a pin 10 rigid section 14 by angular hinges 16, the
angular position of the hinges being such that when the core is collapsed the three sections form an approximate helix.
The several sections constituting the balance of the core, exclusive of the key section, are carried upon a slide or arm 20 which is secured to the rigidsection 14 by lugs 19 and which is provided with two channels 21 that embrace the edges of the supporting plate 3 so that the hinged sections may be moved as a unit or group to ward or from the center of the core as the first operation in the collapsing ofthe core. In order to move the roup of core sections in the manner descri ed,; one edge of the a supporting plate is formed with a rack 22 and the slide 20 is provided with a pinion 23 which meshes with the rack and may be rotated by a wrench or other suitable mechanism. A spring operated pin or catch 25 may be mounted in the slide 20 and is designed to be received in recesses 26 or 27 formed in the central plate 3 when the group of sections is at its outermost or innermost positions respectively.
In the first operation of collapsing the core, the sections 13, 14 and 15 are moved upwardly as a group or unit into the position shown in Figure 2, thus freeing the tire from the key section. The key section is then rotated about the radial pivot 6 until it stands in aposition so that it intersects the original core plane and will be approximately parallel to the hinged core sections when the latter are collapsed. The sections 13 and 15 are then swung inwardly andthe core is. completely collapsed as shown in Figure 5 whereupon the tiremay be removed from the core.
The free ends of the sections 13 and 15 may he provided with keys 30 and the ends of the key section with corresponding key Ways 31 so that the core sections will be properly aligned. 7
It is obvious that changes and modifies tions may be made in specific embodiments of the invention and within the scope thereof as defined in the claims appended hereto.
lVhat is claimed is:
1. In :L collapsible core construction, a key section and a plurality of sections constituting a group hinged together so as to form an approximate helix in collapsed position, means for moving the group of sections in the plane of the core toward and from the center oil the core, and zt'rudial pivot for the key section.
2. In :1 ci'illa isible core construction, :1 key section and a plurality of sections constitutinge group hinged together so its to form an approximate helix in collapsed position, the group of sections being movable in the plane of the core toward and from the center of the core, and a radial pivot for the key section. V
3. In a collapsible core construction, at plurality of sections which are hinged together, so that the sections will form an epproximate helix when swung inwardly, and a l-cey section which is rotatable so as to occupy at position between the ends of the hinged sections when the core is circular and to lie between and parallel to the hinged sections when the core is col-lapsed.
OTTO J. KUHLKE.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US747912A US1704293A (en) | 1924-11-05 | 1924-11-05 | Collapsible core |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US747912A US1704293A (en) | 1924-11-05 | 1924-11-05 | Collapsible core |
Publications (1)
Publication Number | Publication Date |
---|---|
US1704293A true US1704293A (en) | 1929-03-05 |
Family
ID=25007216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US747912A Expired - Lifetime US1704293A (en) | 1924-11-05 | 1924-11-05 | Collapsible core |
Country Status (1)
Country | Link |
---|---|
US (1) | US1704293A (en) |
-
1924
- 1924-11-05 US US747912A patent/US1704293A/en not_active Expired - Lifetime
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3366526A (en) | Collapsible tire building drum for high crown tires | |
US2123586A (en) | Tire building apparatus | |
US1704293A (en) | Collapsible core | |
US1835986A (en) | Collapsible tire building form | |
US2353767A (en) | Tire building drum | |
US1669532A (en) | Collapsible core | |
US1731817A (en) | Collapsible tire-building drum | |
US1896280A (en) | Collapsible drum | |
US1948035A (en) | Annular collapsible form | |
US3637450A (en) | Mechanism for effecting movement of a tire building drum deck | |
US2322546A (en) | Rim for tire retreading apparatus | |
US1421418A (en) | denmire | |
US1709810A (en) | Collapsible core | |
US1898667A (en) | Collapsible form for tire building | |
US1704294A (en) | Collapsible core or form | |
US1723386A (en) | Collapsible core | |
US1636055A (en) | Collapsible tire-building form | |
US1832478A (en) | Tire former and chuck | |
US1612786A (en) | Collapsible tire core | |
US1730213A (en) | Collapsible tire-building form | |
US1704292A (en) | Collapsible core | |
US1486959A (en) | Collapsible tire core | |
US1735896A (en) | Collapsible cobs structure | |
US1749420A (en) | Collapsible core | |
US1612787A (en) | Collapsible core |