US1496114A - Pneumatic tire - Google Patents
Pneumatic tire Download PDFInfo
- Publication number
- US1496114A US1496114A US649405A US64940523A US1496114A US 1496114 A US1496114 A US 1496114A US 649405 A US649405 A US 649405A US 64940523 A US64940523 A US 64940523A US 1496114 A US1496114 A US 1496114A
- Authority
- US
- United States
- Prior art keywords
- tube
- casing
- tread
- pneumatic tire
- adhesive
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/02—Inflatable pneumatic tyres or inner tubes having separate inflatable inserts, e.g. with inner tubes; Means for lubricating, venting, preventing relative movement between tyre and inner tube
- B60C5/04—Shape or construction of inflatable inserts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C73/00—Repairing of articles made from plastics or substances in a plastic state, e.g. of articles shaped or produced by using techniques covered by this subclass or subclass B29D
- B29C73/16—Auto-repairing or self-sealing arrangements or agents
- B29C73/18—Auto-repairing or self-sealing arrangements or agents the article material itself being self-sealing, e.g. by compression
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C19/00—Tyre parts or constructions not otherwise provided for
- B60C19/12—Puncture preventing arrangements
- B60C19/127—Puncture preventing arrangements for inner tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C5/00—Inflatable pneumatic tyres or inner tubes
- B60C5/02—Inflatable pneumatic tyres or inner tubes having separate inflatable inserts, e.g. with inner tubes; Means for lubricating, venting, preventing relative movement between tyre and inner tube
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T152/00—Resilient tires and wheels
- Y10T152/10—Tires, resilient
- Y10T152/10495—Pneumatic tire or inner tube
- Y10T152/10666—Automatic sealing of punctures [e.g., self-healing, etc.]
- Y10T152/1072—Automatic sealing of punctures [e.g., self-healing, etc.] by compression
Definitions
- This invention relates to a new and improved pneumatic tire and more particularly to a pneumatic tire assembly adapted to automatically close up punctures. and to prevent escape of air from the tube.
- inner tubes can be rendered self-healing by being formed with a thickened tread portion and being reversed when strip ed from the mandrel so that the inner portlon of the tread is held under compression by the tensile strength of the outer portion of the tread.
- Figure 1 is a cross section of a casing with a deflated inner tube therein;
- Figure 2 is a section showing the tube inflated
- Figure 3 is a perspective illustrating the .method of forming the tube
- Figure, 4 is a cross section of the inner tube showing its normal position when deflated.
- the tube 11 is formed upon the mandrel 12 and is provided with the thickened tread portion 13.
- the tube is stripped from the mandrel by reversing it upon itself as shown in Figure 3 so that the outer surface is put under tension and the inner surface under compression. The two ends of the. tube are then joined in the usual manner.
- this tube be used in the casing in the usual manner, when pierced by a puncturing element, there will be a tendency for the compressed inner portion of the tread to close tightly about the entering element and to close again to close up the opening when the element is withdrawn.
- the tube be not provided with reinforcing means associated with the tread'surface, there is also the tendency for thematerial to tear due to the puncturing rupture and due to the tensile stress set up in the outer surface layers of the tube by the compression of the inner layers.
- This adhesive is, owever, preferably of such a nature as to permit the tube to be manually stripped from the casing when it is desired to remove the tube for inspection or repair. It will be readily apparent that if a relatively weak adhesive is used, it may be entirely adequate to prevent relative movement of the tube and easing parallel to the two contacting surfaces and yet permit the surfaces to be torn apart without injury to either surface.
- an inner tube is used entirely without reinforcing material and which can be made rapidly at relatively small cost.
- the tube may be used in existing types of casing without alteration therein. It may be readily and quickly applied and installed in the casings and when so installed provides a self-healing construction.
- a pneumatic tire assembly comprising an outer casing, an inner tube in said casweenie an outer casing, an inner tube in said casing, and an adhesive of relatively small strength securing the tread portions of said casing and tube together.
- a pneumatic tire assembly comprising an outer casing, an inner tube in said casing, the inner tube having a thickened tread portion, and an adhesive securin said tube tread portion to the innen surface of the casing tread, said adhesive being of sutlicient strength to prevent relative movementbetweencasing and tube, but permitting the'tube to be manually stripped from the casin Without injury to tube or casing.
- pneumatic tire assembly comprising an outer casing, an inner tube in said casing, the inner tube having a thickened tread portion, an inner portion of said tread being maintained under compression by an outer portion thereof, and an adhesive seg, curing said tube tread portion to the innei surface of the casing tread, said adhesive being of sutiicient strength to prevent relative movement between casing and tube, out permitting the tube to be manually stripped from the casing without injury to tube or casing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Tires In General (AREA)
Description
june 13 19240 C. E. BONNER PNEUMATIC TIRE Filed July 5, 19225 Patented June 3, 192% T oFFic CLABENCE E. BONNEIL OF NEW YORK, N. Y., ASSIGNOR TO RENNOBEC COMPANY, OF
DOVER, DELAWARE, A. CORPORATION OF PNEUMATIC TIRE.
To all whom it may concern:
Be it known that I, CLARENCE E. BONNER, a citizen of the United States, residing at New York, in the county of New York and State of New York, have invented certain new and useful Improvements inPneumatic Tires, of which the following is a specification.
This invention relates to a new and improved pneumatic tire and more particularly to a pneumatic tire assembly adapted to automatically close up punctures. and to prevent escape of air from the tube. It is well known in the art that inner tubes can be rendered self-healing by being formed with a thickened tread portion and being reversed when strip ed from the mandrel so that the inner portlon of the tread is held under compression by the tensile strength of the outer portion of the tread. However,
it has been found in practice that it is necessaryto provide some means for increasing the tensile strength of the outer portionin order to provide adequate compression of the inner portion of the tread.
Various means have been devised for providing this increased tensile strength as, for example, imbedding a layer of fabric in the tread. This method, however, is open to objection in that. the tube is subject to rupture at the edge of the fabric. A 'further'difiiculty lies in the fact that the fabriobeing substantially non-stretchable it is necessary to make it of exactly the same length as the inner circumference of the casingwith which it is to be associated. Otherwise there is a tendency for the tube to twist in the casing. It is an object of the present invention to prbvide a new and improved tire assembly wherein adequate compression is afforded'in the tread portion of the inner tube without the reinforcement of the tube itself by any incorporated foreign tensile means.
" It is a further object to provide a construction of this character in whichthe in-' ner tube may be readily adapted for use with standard outer casings without alteration therein.
. It is an additional object to provide a construction utilizin an inner tube which may be readily forme at small cost and which is adapted to adjust itself to variations in the 1923. Serial No. 649,405.
form and contour of the outer casing with which it may be associated.
Other and further objects will appear as the description proceeds.
I have illustrated a preferred embodiment of my invention in the accompanying drawings, in which Figure 1 is a cross section of a casing with a deflated inner tube therein;
Figure 2 is a section showing the tube inflated Figure 3 is a perspective illustrating the .method of forming the tube; and
Figure, 4; is a cross section of the inner tube showing its normal position when deflated.
As shown in Figure 3, the tube 11 is formed upon the mandrel 12 and is provided with the thickened tread portion 13. The tube is stripped from the mandrel by reversing it upon itself as shown in Figure 3 so that the outer surface is put under tension and the inner surface under compression. The two ends of the. tube are then joined in the usual manner.
Thegreater thickness of the tread 13 and its resistance to compression will cause the finished tube to assume the shape shown in cross section in Figure .4 when deflated. If
this tube be used in the casing in the usual manner, when pierced by a puncturing element, there will be a tendency for the compressed inner portion of the tread to close tightly about the entering element and to close again to close up the opening when the element is withdrawn. However, if the tube be not provided with reinforcing means associated with the tread'surface, there is also the tendency for thematerial to tear due to the puncturing rupture and due to the tensile stress set up in the outer surface layers of the tube by the compression of the inner layers.
I counteract this latter tendency b Y securing the tread portion 13 of the tu e to the inner surface of the tread portion 14 of the casing 15 by means of an adhesive 16. This adhesive is brushed into the tread of the casing before the tube is placed therein and, when the inner tube is inflated, it is intimately pressed against the adhesive. This adhesive is of such strength as to effectively prevent relative movement between the two surfaces which it joins. Consequently, when the tube is punctured the tensile strength of the outer portion of the .tube is reinforced by the strength of the casing itself prevents loss ofthe ressure in t e tu This adhesive is, owever, preferably of such a nature as to permit the tube to be manually stripped from the casing when it is desired to remove the tube for inspection or repair. It will be readily apparent that if a relatively weak adhesive is used, it may be entirely adequate to prevent relative movement of the tube and easing parallel to the two contacting surfaces and yet permit the surfaces to be torn apart without injury to either surface.
In this form of tire assembly an inner tube is used entirely without reinforcing material and which can be made rapidly at relatively small cost. The tube may be used in existing types of casing without alteration therein. It may be readily and quickly applied and installed in the casings and when so installed provides a self-healing construction.
I claim:
1. A pneumatic tire assembly comprising an outer casing, an inner tube in said casweenie an outer casing, an inner tube in said casing, and an adhesive of relatively small strength securing the tread portions of said casing and tube together.
3., A pneumatic tire assembly comprising an outer casing, an inner tube in said casing, the inner tube having a thickened tread portion, and an adhesive securin said tube tread portion to the innen surface of the casing tread, said adhesive being of sutlicient strength to prevent relative movementbetweencasing and tube, but permitting the'tube to be manually stripped from the casin Without injury to tube or casing.
4. pneumatic tire assembly comprising an outer casing, an inner tube in said casing, the inner tube having a thickened tread portion, an inner portion of said tread being maintained under compression by an outer portion thereof, and an adhesive seg, curing said tube tread portion to the innei surface of the casing tread, said adhesive being of sutiicient strength to prevent relative movement between casing and tube, out permitting the tube to be manually stripped from the casing without injury to tube or casing. Si
ed at New York, New York, this 6th ay of June, 1923.
CLARENCE E. BONNER.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US649405A US1496114A (en) | 1923-07-05 | 1923-07-05 | Pneumatic tire |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US649405A US1496114A (en) | 1923-07-05 | 1923-07-05 | Pneumatic tire |
Publications (1)
Publication Number | Publication Date |
---|---|
US1496114A true US1496114A (en) | 1924-06-03 |
Family
ID=24604637
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US649405A Expired - Lifetime US1496114A (en) | 1923-07-05 | 1923-07-05 | Pneumatic tire |
Country Status (1)
Country | Link |
---|---|
US (1) | US1496114A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692000A (en) * | 1951-09-13 | 1954-10-19 | Us Rubber Co | Inner tube coated to prevent buckling |
US3038517A (en) * | 1958-02-26 | 1962-06-12 | Howard S Mcconkie | Tubeless tire with inner tube at least partially floating therein |
US3038516A (en) * | 1958-02-26 | 1962-06-12 | Howard S Mcconkie | Combination tubeless tire and tube |
US4293018A (en) * | 1979-04-09 | 1981-10-06 | Compagnie Generale Des Etablissements Michelin | Tire for two-wheel vehicle |
-
1923
- 1923-07-05 US US649405A patent/US1496114A/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2692000A (en) * | 1951-09-13 | 1954-10-19 | Us Rubber Co | Inner tube coated to prevent buckling |
US3038517A (en) * | 1958-02-26 | 1962-06-12 | Howard S Mcconkie | Tubeless tire with inner tube at least partially floating therein |
US3038516A (en) * | 1958-02-26 | 1962-06-12 | Howard S Mcconkie | Combination tubeless tire and tube |
US4293018A (en) * | 1979-04-09 | 1981-10-06 | Compagnie Generale Des Etablissements Michelin | Tire for two-wheel vehicle |
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