US3837064A - Method and a device for introducing inner tubes into pneumatic tyres - Google Patents

Method and a device for introducing inner tubes into pneumatic tyres Download PDF

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Publication number
US3837064A
US3837064A US00357720A US35772073A US3837064A US 3837064 A US3837064 A US 3837064A US 00357720 A US00357720 A US 00357720A US 35772073 A US35772073 A US 35772073A US 3837064 A US3837064 A US 3837064A
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US
United States
Prior art keywords
guide tube
tyre
tube
inner tube
funnel
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Expired - Lifetime
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US00357720A
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English (en)
Inventor
B Membre
D Clairet
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Boussois SA
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Boussois SA
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/08—Machines for placing washers, circlips, or the like on bolts or other members
    • B23P19/084—Machines for placing washers, circlips, or the like on bolts or other members for placing resilient or flexible rings, e.g. O-rings, circlips
    • 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
    • B29D30/04—Resilient fillings for rubber tyres; Filling tyres therewith
    • 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
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • 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
    • B60C25/00—Apparatus or tools adapted for mounting, removing or inspecting tyres
    • B60C25/01—Apparatus or tools adapted for mounting, removing or inspecting tyres for removing tyres from or mounting tyres on wheels
    • B60C25/05—Machines
    • B60C25/0509—Machines for inserting additional parts, e.g. support rings, sensors
    • 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
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining
    • Y10T29/49863—Assembling or joining with prestressing of part
    • Y10T29/4987—Elastic joining of parts
    • Y10T29/49872—Confining elastic part in socket
    • 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
    • Y10T29/00—Metal working
    • Y10T29/53—Means to assemble or disassemble
    • Y10T29/53657—Means to assemble or disassemble to apply or remove a resilient article [e.g., tube, sleeve, etc.]

Definitions

  • the inner tube is deformed so that the two opposite faces of its inner wall are substantially in contact and is then introduced into an ovalized guide tube terminating in a funnel having an obliquely oriented circular orifice.
  • the orifice is introduced into the opening of the tyre and the inner tube is thrust into the tyre by the ram of a jack.
  • the inner tube is prevented from escaping by virtue of a deflector which is placed in the opposite opening of the tyre.
  • PAIENIEDSEPZMUM 3 37, 054
  • This invention relates to a method and a device for introducing air tubes which are inflated to a predetermined pressure into rubber tires, and especially air tubes of the so-called puncture-proof" type.
  • the invention is of particular interest in the glass industry in which the handling trolleys must be fitted with pneumatic tyres by reason of the fragility of the products being transported and in which the glass fragments which are strewn over the floor are a very frequent cause of punctures. It is with a view to preventing such incidents that so-called punctureproof air tubes are fitted on these trolleys.
  • An air tube of this type is designed in the form of an annular inner tube of moulded rubber having a large number of independent compartments which are inflated during manufacture to a predetermined pressure of the order of 2.3 kg/cm
  • the introduction of a socalled puncture-proof inner tube into a pneumatic tyre is a very difficult operation since the-inner tube as manufactured has a volume which is greater than that ofthe housing provided for the tube within the tyre casing.
  • the aim of this invention is to permit the possibility of carrying out this assembly easily, rapidly and economically.
  • the method whereby inner tubes inflated to a predetermined pressure and especially puncture-proof inner tubes are introduced into tyres essentially consists in causing the deformation of the inner tube in order to ensure that the two opposite faces of its inner wall are brought substantially into contact, in then thrusting the inner tube into the tyre in a direction parallel to those faces which have been brought substantially into contact while confining the tube laterally, in inserting the tube obliquely through the opening of one face of the tyre, in preventing the tube from escaping from the opening of the other face of the tyre during introduction while guiding said tube towards the internal periphery of the tyre, and in continuing to thrust the tube forward until it is finally placed in position inside the tyre.
  • the front end of the inner tube which is inserted into the tyre comes up against a surface which closes at least to a partial extent the tyre face which is opposite to the introduction face.
  • the front end aforesaid widens out since it is no longer confined laterally, is then guided by the closure surface towards the internal periphery of the tyre and fits in position within this latter.
  • the thrust continues to be exerted, an increasingly large portion of the inner tube comes into position inside the tyre and conforms to the shape of this latter.
  • the rear end of the inner tube is thrust inside the tyre.
  • the device for introducing inner tubes inflated to a predetermined pressure into tyres and especially inner tubes of the socalled puncture-proof tyre as intended in particular for the application of the method aforesaid essentially comprises a tube which serves to guide and confine the inner tube and terminates in a funnel for the injection of the confined inner tube, said funnel being provided with an orifice which is oriented at an oblique angle with respect to the axis of the guide tube and intended to be engaged within the opening of one face of the tyre, means being provided on said funnel for securing said tyre, a jack provided with a ram which is capable of sweeping the guide tube, and a removable deflector which is intended to close the opening of one face of the tyre at least to a partial extent.
  • a removable deflector serves both to close the tyre face which is opposite to the tube-introduction face and to guide the front end of the inner tube towards the internal periphery of the tyre.
  • said device comprises on the one hand an inner-tube support plate located upstream of the guide tube and provided with two side-plates which can be variably spaced in order to cause deformation of the inner tube, the clamping faces of said side-plates being parallel to the mid-plane of the guide tube.
  • Said device is further equipped with ajack which controls the relative displacement of the two side-plates aforesaid so as to ensure that the space provided between said two plates in the position of deformation to be given to the inner tube corresponds to the upstream orifice of the guide tube.
  • one of the side-plates for causing deformation of the inner tube is stationary and placed in the line of extension of the guide tube whilst the other side-plate is capable of moving at right angles to the axis of said guide tube, the support plate which is located upstream of the guide tube being rigidly fixed to the movable side-plate.
  • the inner tube which is intended to be fitted in the tyre can very readily be deposited on the support plate.
  • the device comprises a chassis which is placed transversely with respect to the axis of the guide tube, said chassis being adapted to carry on the one hand the movable sideplate which is slidably mounted relative to said chassis and, on the other hand, the jack for controlling said movable plate.
  • the guide tube, the stationary sideplate and the chassis are removable.
  • FIG. 1 is a diagram representing different steps of the method.
  • the drawing a illustrates the inner tube which is to be fitted in the tyre and which has been inflated to a predetermined pressure.
  • the drawing b illustrates the deformed inner tube, two opposite faces of its inner'wall having been brought substantially into contact.
  • the drawing e is an axial sectional view of the tyre showing the inner tube after this latter has been fitted in position.
  • FIG. 2 is a part-sectional view in side elevation showing a first embodiment of the device
  • FIG. 3 is a partial view in perspective to a larger scale and corresponding to FIG. 2;
  • FIG. 4 is a partial view in perspective with parts broken away and corresponding to FIG. 3, showing the engagement of the front end of the inner tube within the tyre;
  • FIG. 5 is a front view in elevation showing the deflector mounted within the opening of one face of the tyre;
  • FIG. 6 is a view in perspective showing a second embodirnent of the device
  • FIG. 7 is a partial view in side elevation with parts broken away and corresponding to FIG. 6;
  • FIG. 8 is a plan view with parts broken away and corresponding to FIG. 7',
  • FIG. 9 is a diagrammatic plan view showing a third .embodiment of the device.
  • FIG. 17 is a sectional view taken along line XVII-X- VII of FIG. 16.
  • the inner tube 1 (shown in FIG. la) which is assumed by way of example to be a tube of the so-called puncture-proof type is inflated to a predetermined pressure, then deformed at the outset as a result of opposite actions 0 so that the two opposite faces of its inner wall are brought substantially into contact (as shown in FIG. 1b).
  • This shape is maintained by lateral confinement (by means of guiding surfaces m and n) and the inner tube 1 is thrust into the tyre 2 in a direction parallel to those faces which have been brought substantially into contact by introducing the tube at an oblique angle through the opening 3 on one face of the tyre 2 (as shown in FIGS. 1c and 1d).
  • the inner tube is prevented from escaping through the opening 4 of the other face of the tyre 2 by closing' this opening by means of a deflecting surface S which is substantially parallel to the mid-plane M of the tyre 2.
  • the angle iwhich the direction of thrust P exerted on the inner tube 1 makes with the plane M is advantageously of the order of 50 to and friction forces are appreciably reduced by coating the inner tube 1 with a lubricant such as soft soap.
  • the thrust P is exerted on the inner tube 1 by a surface which is substantially parallel to the plane M.
  • the tube is guided by said surface 5 towards the internal periphery of the tyre 2 and fits into position therein.
  • the thrust P is maintained, with the result that an increasing proportion of the inner tube 1 is fitted within the tyre 2.
  • the clasticity of said tube is such that this latter at once reverts to its toric shape and is completely in position within the tyre 2.
  • the inner tube l is compressed laterally and tied, then engaged within a guide tube, the ties being progressively removed as the inner tube 1 is inserted into the guide tube.
  • the method of assembly is then semiautomatic.
  • deformation of the inner tube 1 is caused by thrusting this latter towards the opening 3 of the tyre 2 while confining the inner tube laterally and progressively in such manner as to result in ovalization of said tube.
  • the method of assembly is automatic.
  • the inner tube is deformed by application of thrust and lateral confinement between two parallel surfaces.
  • the tube is then pushed into the opening 3 in a direction parallel to the two surfaces aforesaid while maintaining its lateral confinement.
  • the method of assembly is automatic in this case also.
  • fitting of the inner tube 1 within the tyre 2 can be carried out easily and rapidly by means of the method in accordance with the invention.
  • a frame 6 carries a platform 7 provided with a back-plate 8, a first jack 9 having a head 11 which is directed towards said backplate 8, a second jack l2 placed in opposition to the first jack 9 and adapted to carry a ram 13, and a guide tube 14 having the design function of guiding and confining the inner tube 1 and having an oval cross-section.
  • Said guide tube 14 has the same axis A as the jack l2 and is fixed on the frame 6 by means of clamping hoops 41.
  • That end 25 of the guide tube 14 which is remote from the jack l2 terminates in an oval flange 42 which is intended to permit removable mounting of a funnel 15 which has the same axis A as said tube.
  • the funnel 15 is constituted by three removable longitudinal elements 15a, 15b, 15c which are connected together by means of bolts 43 passed through longitudinal flanges 44.
  • the funnel 15 When assembled together, the elements 15a and 15c are not contiguous since experience has shown that no useful purpose is served by a close connection in the upper portion of the central plane.
  • the funnel 15 At the end nearest the guide tube 14, the funnel 15 has an ovalized contour and carries a flange 45, the contour of which corresponds to that of the flange 42.
  • the flanges 42 and 45 are intended to be secured to each other by means of removable bolts 46, for example.
  • the funnel 15 terminates in a substantially circular orifice 16, the plane of which makes an angle 1' of the order of 50 to 70 with the axis A.
  • the orifice 16 has a diameter which is slightly smaller than that of the opening 3 of the tyre 2 and is provided with an external flange 17.
  • the ram 13 has a flattened body 18 which is adapted to fit within the guide tube 14 and terminates in a thrust face 19 which makes an angle 1' of the order of 50 to 70 with the axis A.
  • the device further comprises a removable deflector 5 (as shown in FIGS. 2 and 4) consisting of a plate fitted with a handle 21 and terminating in a yoke 22 which is intended to be placed astride of a bead 23 of the tyre 2 on the side corresponding to the opening 4 of this latter.
  • a removable deflector 5 (as shown in FIGS. 2 and 4) consisting of a plate fitted with a handle 21 and terminating in a yoke 22 which is intended to be placed astride of a bead 23 of the tyre 2 on the side corresponding to the opening 4 of this latter.
  • the guide tube 14 is detached from the funnel l5,'the components of which are disassembled so as to introduce their flanges 17 through the opening3 into the interior of the tyre 2 within which the inner tube 1 is to be mounted.
  • the introduction of the flanges l7 and subsequent juxtaposition of these latter within the tyre 2 are facilitated by the fact that some components of the funnel 15 are not in juxtaposed relation.
  • the components of the funnel 15 are re-assembled. Since the diameter ofthe orifice 16 of the funnel 15 is slightly smaller than that of the opening 3 of the'tyre 2, this latter is accordingly centered on the funnel l5 and at the same time maintained by means of the flanges 17.
  • the deflector 5 is then placed within the opening 4 of the tyre 2 by mounting its yoke 22 astride of the tyre bead 23 (as shown in FIG. 5).
  • the inner tube 1 which is to be fitted within the tyre, for example a tube of the so-called puncture-proof type, is placed on the platform 7 against the back-plate 8. Deformation of the inner tube is caused by applying the head 11 of the jack 9 against said tube and by exerting a thrust in the direction 0 until the two opposite faces of the inner wall of the inner tube 1 are brought substantially into contact (the shape being indicated in dashed lines in FIG. 2, in which the flnal position of the head 11 is shown at 11a). The inner tube 1 is then bound by means of ties 24 (shown in FIG. 3) in order to maintain the deformation of said tube. The complete assembly is then coated with a lubricant such as soft soap and engaged within the downstream orifice 25 of the guide tube 14 while removing the ties 24 progressively as the inner tube 1 is introduced into the guide tube 14.
  • a lubricant such as soft soap
  • the funnel 15 is fixed on this latter by means of the bolts 46 which are inserted through both flanges 42 and 45.
  • the jack 12 is then actuated and thrusts the inner tube 1 into the funnel 15, then into the tyre 2 against the deflector 5 (as shown in FIG. 4).
  • the front end of the inner tube 1 comes into abutment against the deflector 5, then widens and is accordingly guided by the deflector 5 towards the lower peripheral portion of the tyre 2 so as to fit in position within this latter.
  • the device which has just been described has the advantage of ensuring automatic assembly of the inner tube 1 within the tyre 2 after said tube 1 has been introduced within the guide tube 14 and the funnel 15 which carries the tyre 2 has been placed in position on said guide tube 14.
  • FIGS. 6 to 8 In a second embodiment of the device according to the invention as shown in FIGS. 6 to 8, the same reference numerals have been assigned to elements which are similar to those of the first embodiment.
  • the frame 6 carries the jack l2 and the guide tube 14; this latter is provided at the upstream end thereof with two symmetrical confinement wings 26 delimiting a flared inlet orifice 27, the diameter of which corresponds substansupport plate 28 on which the inner tube 1 can be placed prior to mounting in the tyre.
  • a funnel 31 made up of two halfshells 32 having a substantially frusto-conical internal shape.
  • Each half-shell 32 aforesaid is provided with two coaxial pins 33 pivotally mounted in support brackets 34 which are fixed on the guide tube 14.
  • the axis T of each pair of pivot-pins 33 is located at right angles to the base plane B of the guide tube 14.
  • Each half-shell 32 is provided with an external flange 35 at the end remote from the guide tube 14.
  • the shape and arrangement of the half-shells 32 are such that, in the position 32a in which these latter are in closest proximity to each other (namely in the position shown in chaindotted lines in FIG.
  • the maximum external distance 35 of these latter can be engaged within the opening 3 of the tyre 2 and are then separated so that the tyre is maintained against the two half-shells 32 by means of the flanges 35.
  • the deflector 5 is then placed within the opening 4 of the tyre 2, the yoke 22 of said deflector being placed astride of the tyre bead 23.
  • the inner tube 1 to be fitted is laid on the support plate 28 against the orifice 27 after having been coated with a lubricant such as soft soap.
  • the jack 12 is then actuated; under the thrust P, the inner tube 1 slides between the wings 26 while being compressed, begins to penetrate into the guide tube 14 and assumes the elongated shape at the front end as shown in thick chain-dotted lines in Fig.8. Since the length of the rec .tilinear portion of the guide tube 14 corresponds substantially to that of the inner tube 1 in the elongated position, said inner tube in turn assumes this shape after it has been completely introduced into said guide tube as shown in dashed lines in FIG. 8.
  • the inner tube I need only be engaged within the device in the rest condition without any previous deformation.
  • Fitting of the inner tube 1 withinthe tyre is fully automatic.
  • the thrust exerted on the inner tube 1 in the direction P makes it possible by virtue of the deflecting action of the curved wings '26 to ensure elongation in the direction of forward displacement of said inner tube.
  • FIG. 9 A third embodiment of the device according to the invention is illustrated in FIG. 9 in a preferred form of construction which differs from the second embodiment only in that portion of the device which relates to the introduction of the inner tube 1 into the guide tube 14.
  • a support plate 36 located between the jack l2 and the guide tube 14 is provided with two side-plates 37 and 38 for the deformation of the inner tube 1.
  • the side-plate 37 is placed in the line of extension of the guide tube 14 and the clamping face 39 of the sideplate 38 is parallel to the midplane G of the guide tube 14.
  • a jack which is not shown in the drawings controls the relative displacement of the side-plates 37 and 38 in the direction of the arrow F or in the opposite direction.
  • the space formed between the side-plates 37 and 38 in the position of deformation to be given to the inner tube 1 corresponds to the upstream orifice 30 of the guide tube I4.
  • the cross-section of the side-plate 37, 38 along a plane at right angles to the axis A of the guide tube 14 approximates to a half-circumference.
  • FIGS. 10 to 12 illustrate diagrammatically the operation of that portion of the device which relates to the introduction of the inner tube 1 into the guide tube 14.
  • the inner tube 1 which is to be fitted within the tyre and is shown in FIGv 10 is first coated with a lubricant such as soft soap, then placed on the support plate 36 and engaged within the side-plate 38 between the ram 13 and the guide tube 14.
  • the inner tube is deformed by displacing the side-plate 38 towards the side-plate 37 in the direction of the arrow F.
  • the inner tube 1 is partly ovalized; when clamped between the sideplates 37, 38 and the face 19 of the ram 13, aaid inner tube begins to penetrate into the guide tube 14.
  • the side-plate 38 is at the end of travel and, at this point, is located in the line. of extension of the guide tube 14 in the same manner as the side-plate 37.
  • the inner tube 1 which has undergone deformation in the direction of the arrow F to the full extent has penetrated further into the guide tube 14.
  • the thrust P of the ram 13 will be applied to the inner tube in order a that this latter should pass through the guide tube 14 and be introduced into the tyre casing 2 (not shown) which is attached to the ends 35 of the half-shells 32.
  • the inner tube 1 can very conveniently be placed on the support plate 36 since this latter is brought completely to one side of the frame 6 for the loading operation.
  • the inner tube 1 is securely held in position by the side-plates 37 and 38' as it undergoes deformation by virtue of the semicircular cross-sectional shape of these latter.
  • tyres 2 inner tubes 1 having the following dimensions:
  • FIGS. 13 to 17 show one mode of execution of the third embodiment which is designed to permit rapid changing of any components which have to be replaced by others in order to change-over from the introduction of one inner tube 1 to the introduction of another tube having distinctly different dimensions.
  • the frame 6 is made up of two channel-iron side-stringers 53 which are joined together by welded tubular cross-members 55.
  • the frame 6 is supported on welded legs 54.
  • Supports 51, 52 for the jack 12 which carries the ram 13 are provided at one end of the frame 6 whilst the other end of this latter serves to mount the guide tube 14.
  • two superposed channel sections 58, 59 are mounted on each side-stringer 53 and parallel to these latter. Said channel sections are welded to each other and joined together transversely by means of flat bar-iron members (which have not been illustrated).
  • the channel sections 58 are fixed on the side-stringers 53 by means of bolts 62 fitted with nuts.
  • the guide tube 14 is provided on each side with two flanges 64, 65, each flange being fixed on the top flange of one of the channel sections 59 by means of bolts 66 fitted with nuts.
  • the stationary side-plate 37 forms one piece with the guide tube 14 while also constituting an extension of this latter over a part of its transverse cross-section and the flange 65 extends along the full length of the sideplate 37.
  • the frame 6 carries a transverse support structure or chassis 68 constituted by two channel-iron side members 69 located at right angles to the side-stringers 53 and joined together by means of two welded channel-section cross-members 71.
  • the chassis 68 is removably fixed on the side-stringers 53 by means of bolts 72 fitted with nuts 73.
  • the side members 69 carry a welded channel-section cross-member 74 which is located vertically above the side-stringer 53 and on which is supported the flange 65 of the side-plate 37, said flange being fixed in position by means of bolts 66 fitted with nuts 67. 1
  • each side member 69 carries a bracket (as shown in FIGS. 13 and 14), one end of a circular-section guide rod 76 extending parallel to the side member 69 being fixed on said bracket.
  • the other end of each guide rod 76 is fixed in the cross-member 71 which is remote from the side-plate 37.
  • the movable side-plate 38 and the support plate 36 which is integral with this latter are joined by means of plates 84 placed edgewise to a carriage 77 (shown in FIGS. 15 to 17) which is slidably mounted on the two guide rods 76.
  • the carriage 77 is provided with two tubular slide-blocks 78 fitted with internal sleeves 81 which are slidably mounted on the guide rods 76.
  • the top faces of said slide-blocks 78 are designed to receive the plates 84.
  • the slide-blocks 78 are secured in rigidly fixed relation by means of a thrust head made up of two channelsection members 82 which are braced by a transverse angle-iron member 83.
  • the end of the operating rod 94 of the jack 85 is attached at the center of the angle-iron member 83. Said jack works in extension so as to control the displacement of the sliding carriage 77 and therefore of the movable side-plate 38.
  • the axis of the jack 85 is perpendicular to the axis A of the guide tube 14.
  • the end of the body 86 of the jack 85 is secured by means of a yoke 87 to that cross-member 71 of the chassis 68 which is remote from the stationary side-plate 37.
  • the components of the device which have to be replaced in order to change-over from the introduction of one inner tube 1 to the introduction of another inner tube having distinctly different dimensions are the guide tube 14 fitted with its two half-shells 32, the sideplates 37 and 38, the support plate 36 and the jack 85.
  • the substitution of one set of components for another set is an extremely easy and rapid operation.
  • the components to be replaced can be detached from the frame 6 as a complete unit simply by unscrewing the bolts 62 and 72.
  • the movable side-plate 38 is maintained exactly parallel to the axis A of the guide tube 14 by the two guide rods 76.
  • the guide tube 14 and the stationary side-plate 37, the chassis 68, the movable side-plate 38, the support plate 36 and the jack 85 constitute a removable assembly.
  • This assembly can very readily and very rapidly be replaced by another assembly when the dimensions of the inner tube 1 to be introduced make it necessary to do so since this only involves the removal and replacement ofa few bolts.
  • the frame 6 and the ram 13 do not need to be replaced even when the dimensions of the inner tube 1 vary over a very wide range of sizes.
  • the device in accordance with the mode of execution hereinabove described in connection with the third. embodiment therefore makes it possible to reduce to a strict minimum both the capital cost of equipment and the number of handling operations which are necessary, even when the inner tubes to be introduced into the tyres differ in size to a marked degree.
  • the base of the guide tube 14 could be inclined to the horizontal.
  • the funnel 31 could be fitted with an elastic system which tends to draw the two half-shells 32 together.
  • the stationary side-plate 37 could also be separate from the guide'tube 14 and mounted on the chassis 68.
  • a device for introducing inner tubes inflated to a predetermined pressure into tyres and especially inner tubes of the so-called puncture-proof type wherein said device comprises a tube which serves to guide and confine the inner tube and terminates in a funnel for the injection of the confined inner tube, said funnel being provided with a substantially circular orifice which is intended to be engaged within the opening of one face of the tyre, means being provided on said funnel for ensuring attachment to the tyre, a jack comprising a movable ram which is capable of sweeping the guide tube, and a removable deflector which is capable of closing the opening of one face of the tyre at least to a partial extent.
  • the injection funnel comprises a flat elongated body which is joined to the guide tube and terminates in a substantially circular orifice, the plane of said orifice being oriented at an oblique angle with respect to the axis of the guide tube.
  • a device wherein the funnel is removably mounted at the downstream end of the guide tube with respect to the direction of the thrust exerted on the inner tube.
  • the guide tube has confinement wings which delimit an inlet orifice and the diameter of said orifice corresponds sub- .stantially to the diameter of the inner tube in the'rest condition, said wings being so arranged as to converge towards the walls of the guide tube proper.
  • a device comprising on the one hand a support plate located upstream of the guide tube and provided with two sideplates which can be variably spaced in order to cause deformation of the inner tube, the clamping faces of said side-plates being parallel to the mid-plane of said guide tube, and on the other hand a jack which controls the relative displacement of said side-plates, and wherein the space between said two side-plates in the position of deformation to be given to the inner tube corresponds to the upstream orifice of said guide tube.
  • a device wherein the ram has a flattened body which is adapted to the guide tube and terminates in a thrust face which is substantially parallel to the plane of the opening of the funnel.
  • the removable deflector comprises a plate terminating in a yoke which is intended to be placed astride of the tyre head.
  • the funnel which is placed at the outlet of the guide tube is constituted by an assembly of removable elements for introducing into the tyre projecting portions of the funnel which are intended to maintain the orifice of said funnel within the interior of said tyre.
  • a device wherein the funnel which is placed at the outlet of the guide tube has two half-shells of substantially frustoconical internal shape which are pivoted about axes located at right angles to the base plane of the guide tube and terminate in projecting portions for retaining the tyre, said half-shells being so arranged that the maximum external spacing of said retaining projecting portions in the positions of maximum closure of said half-shells is smaller than the diameter of the opening of the tyre faces and that said spacing is larger than said diameter in the positions of maximum separation of said half-shells.
  • one of the side-plates for the deformation of the inner tube is stationary and placed in the line of extension of the guide tube whilst the other side-plate is movable at right angles to the axis of said guide tube, wherein the support plate which is located upstream of the guide tube is rigidly fixed to the movable side-plate.
  • a device wherein the two side-plates for the deformation of the inner tube are provided along a plane at right angles to the axis of the guide tube with a cross-section which is approximately a half-circumference.
  • a device comprising a chassis which is placed transversely with respect to the axis of the guide tube and carries on the one hand the movable side-plate which is mounted for sliding motion with respect to said chassis and on the other hand the jack for controlling said movable side-plate.
  • a device wherein the chassis is carried by a frame which supports the guide tube, the stationary side-plate which is rigidly fixed to the guide tube being supported on the chassis aforesaid.
  • a device wherein the guide tube, the stationary side-plate, the chassis which carries the movable side-plate and its control jack are removably mounted on a frame on which the ram and ram-actuating jack are permanently fixed.
  • a device wherein the respectively two sub-assemblies which are removably guide tube and the stationary side-plate on the one mounted on a frame on which the ram and ramhand and the chassis which carries the movable sideactuating jack are permanently fixed. plate and its control jack on the other hand constitute

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Tires In General (AREA)
US00357720A 1972-05-25 1973-05-07 Method and a device for introducing inner tubes into pneumatic tyres Expired - Lifetime US3837064A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7218648A FR2185516B1 (de) 1972-05-25 1972-05-25
FR7310274A FR2222234B2 (de) 1972-05-25 1973-03-22

Publications (1)

Publication Number Publication Date
US3837064A true US3837064A (en) 1974-09-24

Family

ID=26217100

Family Applications (1)

Application Number Title Priority Date Filing Date
US00357720A Expired - Lifetime US3837064A (en) 1972-05-25 1973-05-07 Method and a device for introducing inner tubes into pneumatic tyres

Country Status (9)

Country Link
US (1) US3837064A (de)
JP (1) JPS4955003A (de)
BE (1) BE798648A (de)
CA (1) CA986006A (de)
CS (1) CS159210B2 (de)
DE (1) DE2325944A1 (de)
FR (2) FR2185516B1 (de)
GB (1) GB1432996A (de)
IT (1) IT984916B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251906A (en) * 1978-10-10 1981-02-24 Etablissements M. Muller & Cie. Method of and apparatus for fitting and removing unpuncturable inner tubes
US6609293B2 (en) * 2000-06-23 2003-08-26 Corghi S.P.A. Device for operating on tires of “SYSTEM PAX” type
US20030193114A1 (en) * 2002-04-15 2003-10-16 Tullio Gonzaga Method and apparatus for assembling /disassembling a flexible ring to in or from a tired wheel
EP3950382A1 (de) * 2020-08-05 2022-02-09 Ninebot (Changzhou) Tech Co., Ltd. Reifen, rad und fahrzeug

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2470015A1 (fr) * 1979-11-21 1981-05-29 Jacquemin Paul Procede pour introduire une chambre increvable a l'interieur d'un pneumatique et dispositif pour la mise en oeuvre de ce procede
DE8119792U1 (de) * 1981-07-07 1982-01-14 Thyssen Industrie Ag, 4300 Essen Vorrichtung zum elastischen verformen eines notlaufrings, insbesondere fuer gelaendefahrzeuge
FR2712846B1 (fr) * 1993-11-25 1996-02-16 Hutchinson Machine de montage et de démontage d'un organe élastiquement déformable à l'intérieur d'un pneumatique.

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997738A (en) * 1959-02-18 1961-08-29 Mcneil Machine & Eng Co Apparatus and method for positioning a tire in a curing press
US3180015A (en) * 1963-01-03 1965-04-27 Thompson Jesse Willard Tool for inserting o-rings
US3199182A (en) * 1961-06-22 1965-08-10 Gen Motors Corp Apparatus and article of manufacture

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2997738A (en) * 1959-02-18 1961-08-29 Mcneil Machine & Eng Co Apparatus and method for positioning a tire in a curing press
US3199182A (en) * 1961-06-22 1965-08-10 Gen Motors Corp Apparatus and article of manufacture
US3180015A (en) * 1963-01-03 1965-04-27 Thompson Jesse Willard Tool for inserting o-rings

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4251906A (en) * 1978-10-10 1981-02-24 Etablissements M. Muller & Cie. Method of and apparatus for fitting and removing unpuncturable inner tubes
US6609293B2 (en) * 2000-06-23 2003-08-26 Corghi S.P.A. Device for operating on tires of “SYSTEM PAX” type
US20030193114A1 (en) * 2002-04-15 2003-10-16 Tullio Gonzaga Method and apparatus for assembling /disassembling a flexible ring to in or from a tired wheel
US6842958B2 (en) * 2002-04-15 2005-01-18 Butler Engineering & Marketing Srl Method and apparatus for assembling/disassembling a flexible ring to in or from a tired wheel
USRE40335E1 (en) 2002-04-15 2008-05-27 Butler Engineering & Marketing Srl Method and apparatus for assembling/disassembling a flexible ring to in or from a tired wheel
EP3950382A1 (de) * 2020-08-05 2022-02-09 Ninebot (Changzhou) Tech Co., Ltd. Reifen, rad und fahrzeug
CN114056005A (zh) * 2020-08-05 2022-02-18 纳恩博（常州）科技有限公司 轮胎、车轮以及车辆

Also Published As

Publication number Publication date
DE2325944A1 (de) 1974-01-24
IT984916B (it) 1974-11-20
FR2185516B1 (de) 1974-09-27
CS159210B2 (de) 1974-12-27
FR2185516A1 (de) 1974-01-04
FR2222234B2 (de) 1976-11-05
CA986006A (en) 1976-03-23
FR2222234A2 (de) 1974-10-18
BE798648A (fr) 1973-10-24
GB1432996A (en) 1976-04-22
JPS4955003A (de) 1974-05-28

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