JP4511753B2 - Sealant sealing device for tire tube with sealant - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tire tube with a sealant provided with an air chamber filled with air inside a tire tube and a sealant chamber filled with a sealant, and more particularly to a sealing agent sealing device in the sealant chamber. .
[0002]
[Prior art]
Japanese Patent Application Laid-Open No. 58-74342 discloses a tire tube containing a sealing agent in which a sealing agent is filled inside the tire tube and the tire tube is stabbed by a nail or the like to self-seal with the sealing agent to delay air leakage. This is known from Japanese Patent Laid-Open No. 9-300481.
[0003]
In JP-A-58-74342, a capsule containing a sealant is inserted into a tire tube before vulcanization molding, and the capsule is destroyed by external force after vulcanization molding. A sealant is dispersed in the tube. In addition, what is described in Japanese Patent Laid-Open No. 9-300481 is that a sealant is filled from a sealant filling hole formed in a tire tube in a state where air is filled in an air chamber of the tire tube and air is pushed out from the sealant chamber. The chamber is filled with a sealant.
[0004]
[Problems to be solved by the invention]
However, the former sealing agent filling method may not only damage the tire tube when an external force is applied to break the capsule, but also the sealing agent may clog the air valve provided on the tire tube. was there. Further, the latter sealing agent filling method has a problem that not only it is difficult to completely exhaust the air in the sealing agent chamber but also it takes time to exhaust the air from the sealing agent chamber.
[0005]
The present invention has been made in view of the above-described circumstances, and an object of the present invention is to efficiently perform a work for sealing a sealant in a sealant chamber of a tire tube in a short time.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, according to the invention described in claim 1, a tire tube with a sealant for sealing the sealant in a state where air is not mixed in a sealant chamber partitioned inside the tire tube. An index table that intermittently rotates by a predetermined angle, a tire tube support provided on the outer periphery of the index table at each predetermined angle, and a tire tube supported by each tire tube support And a plurality of work stations provided at positions facing the plurality of tire tube support portions of the index table when the index table stops. The station is equipped with sealant and air filled from the sealant filling hole inside the sealant chamber. A work set station that supports the existing tire tube on the tire tube support part and clamps it with a clamp member, a buff station that polishes the periphery of the sealant filling hole with a buff, and a state where the clamp by the clamp member is temporarily released The vacuum station that evacuates the air present in the sealant chamber, the patch set station that sets the raw rubber patch in the sealant filling hole, and the ironing station that closes the sealant filling hole by heat bonding the set raw rubber patch Each tire tube support portion is sequentially stopped at a position facing the work set station, buff station, vacuum station, patch set station, and ironing station while intermittently rotating the index table. Sealant encapsulating apparatus of the sealant containing tire tube is proposed, which comprises carrying out.
[0007]
According to the above configuration, the plurality of tire tube support portions that support the plurality of tire tubes and clamp with the clamp member are provided on the outer periphery of the index table that intermittently rotates by a predetermined angle, and the plurality of tire tube supports of the stopped index table are provided. Workset station, buff station, vacuum station, patch set station, and iron station are provided at the position facing the section, so that the tire tube is supported by the tire tube support section at the work set station and filled with the sealant The index table is intermittently rotated with the periphery of the hole clamped, so that the periphery of the sealant filling hole is polished at the buff station, the air present in the sealant chamber is evacuated at the vacuum station, and is generated at the patch set station. Go The patch can be set in the sealant filling hole, and the raw rubber patch can be heated and bonded at the ironing station to close the sealant filling hole, and the series of operations described above can be performed sequentially as the index table rotates. Can be completed efficiently.
[0008]
In addition, buffing is performed with the periphery of the hole filled with the sealant clamped, so it is possible not only to prevent the tire tube from being damaged by the load of buffing, but also to remove the oil and dirt and increase the adhesive strength of the raw rubber patch. Since the air in the sealant chamber is exhausted by evacuation, it can be prevented that air is mixed into the sealant and the sealing performance is deteriorated, and the periphery of the sealant filling hole is clamped. Since the sealant filling hole is closed by adhering the raw rubber patch, air can be prevented from entering again into the sealant chamber when the sealing agent filling hole is closed, and stable sealing performance can be ensured.
[0009]
According to the invention described in claim 2, in addition to the structure of claim 1, each tire tube support portion can support a plurality of tire tubes. A sealing agent sealing device is proposed.
[0010]
According to the above configuration, since the plurality of tire tubes are supported by each tire tube support portion, it is possible to process the plurality of tire tubes at the same time, and work efficiency is improved.
[0011]
According to the invention described in claim 3, in addition to the configuration of claim 2, each work station can simultaneously process a plurality of tire tubes supported by each tire tube support portion. A sealing agent sealing device for a tire tube containing a sealing agent is proposed.
[0012]
According to the above configuration, since the plurality of tire tubes supported by the respective tire tube support portions are simultaneously processed at each work station, a plurality of operations can be advanced simultaneously to improve work efficiency.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described based on examples of the present invention shown in the accompanying drawings.
[0014]
1 to 17 show an embodiment of the present invention. FIG. 1 is a cross-sectional view of a wheel equipped with a tube-filled tire, FIG. 2 is a cross-sectional view taken along line 2-2 of FIG. 1, and FIG. FIG. 4 is a second partial view for explaining the sealing agent filling step, FIG. 5 is a perspective view of the sealing agent filling station, and FIG. 6 is an overall plan view of the sealing agent filling device. 7 is an overall plan view of the index table, FIG. 8 is an overall plan view of the tool base, FIG. 9 is a sectional view taken along line 9-9 of FIG. 6, and FIG. 10 is an enlarged view of the main part of FIG. 11 is a view in the direction of arrow 11 in FIG. 10, FIG. 12 is a view in direction of arrow 12 in FIG. 8, FIG. 13 is a view in direction of arrow 13 in FIG. 12, and FIG. 15 is a view taken in the direction of arrows 15-15 in FIG. 6, and FIG. 16 is a view taken in the direction of arrows 16 in FIG. FIG. 17 is an enlarged view of a main part of FIG.
[0015]
As shown in FIGS. 1 and 2, a rim R of a motorcycle wheel is fitted with a tube-filled tire T including a tire body 1 and a tire tube 2 housed therein. The tire tube 2 includes an air chamber peripheral wall 3i positioned on the inner side in the radial direction of the tire T and a sealant chamber peripheral wall 3o positioned on the outer side in the radial direction, and the peripheral wall 3 having an annular cross section. The connecting portion between the air chamber peripheral wall 3i and the sealant chamber peripheral wall 3o of the peripheral wall 3 is connected to each other by a partition wall 4 formed integrally therewith. The air chamber 5 having a substantially circular cross section defined between the air chamber peripheral wall 3i and the partition wall 4 is filled with air, and has a substantially arc-shaped cross section defined between the sealant chamber peripheral wall 3o and the partition wall 4. The sealant chamber 6 is filled with a gel sealant 7.
[0016]
The rim R has an annular rim main body portion 11 extending in the circumferential direction of the tire T, and a pair of flange portions 12 and 12 that extend radially outward from both ends in the width direction of the rim main body portion 11 and hold the inner periphery of the tire main body 1. With. An air valve 13 that fills the air chamber 5 formed in the tire tube 2 with air is supported by penetrating an air valve mounting portion 14 formed at one place in the circumferential direction of the rim main body portion 11.
[0017]
Thus, since the sealant chamber 6 of the tire tube 2 is held in a shape along the inside of the tread 15 by the air pressure of the air chamber 5, the tire tube 2 is pierced from the radial direction or the side by a nail or the like. However, the sealing agent 7 immediately fills and repairs the stab wound, and delays the leakage of air from the air chamber 5. Further, since the sealant 7 is held in the sealant chamber 6 and does not flow out to the air chamber 5 side, the air valve 13 and the pressure gauge applied thereto are not clogged.
[0018]
Before describing the structure of the sealing agent sealing device, an outline of the process of sealing the sealing agent 7 in the sealing agent chamber 6 of the tire tube 2 will be described with reference to FIGS. 3 and 4.
[0019]
First, the inner peripheral surface (air chamber peripheral wall 3i) of the tire tube 2 before being filled with the sealant 7 is supported on the upper surface of the horizontally disposed tire tube support member 19 and heated to about 400 ° C. by an electric heater. The nail 22 is lowered from above toward the tire tube support member 19 to form the sealant filling hole 2a on the outer peripheral surface (the sealant chamber peripheral wall 3o) of the tire tube 2. By using the hot nail 22 thus heated, the sealant filling hole 2a can be easily and reliably formed in the rubber tire tube 2 (see FIG. 3A). After retracting the hot nail 22 upward, a sealant injection hose 23 is inserted from the sealant filling hole 2a of the tire tube 2 supported by the tire tube support member 20 to the bottom of the sealant chamber 6, and this sealant injection hose. The sealant 7 is injected into the bottom of the sealant chamber 6 from the sealant filling hole 2 a through 23. When the sealing agent injection hose 23 is pulled out, the sealing agent 7 stays at the bottom of the sealing agent chamber 6 due to gravity, and air remains in the upper portion of the sealing agent chamber 6 (see FIG. 3B).
[0020]
FIG. 5 shows a sealing agent filling station S0. The sealant filling station S0 can fill the four tire tubes 2 with the sealant 7, and includes a sealant tank 32 that stores the sealant 7, a sealant pump 33 that supplies the sealant 7, and a seal. The sealant injection hose 23 for supplying the agent pump 33 to the tire tube 2 and an operation panel 34 operated by an operator are provided. The tire tube support member 20 that supports the tire tube 2 is connected to an electronic balance 35, and the filling amount of the sealant 7 can be confirmed based on the weight of the tire tube 2 measured by the electronic balance 35. Prior to filling the sealant 7, if air is supplied from the air valve 13 to the air chamber 5, the air in the sealant chamber 6 is pushed out from the sealant filling hole 2a. However, the amount of air remaining in the sealant chamber 6 can be minimized by supplying the sealant 7 into the sealant chamber 6.
[0021]
Subsequently, the tire tube 2 is placed on the partially conical tire tube support member 21, and the clamp member 25 having the partially conical opening 25a is lowered from above to clamp around the sealant filling hole 2a ( (See FIG. 3C). Subsequently, the periphery of the sealant filling hole 2a surrounded by the clamp member 25 is polished with the buff 26 while the clamp by the clamp member 25 is maintained, so that oil and dirt attached to the periphery of the sealant filling hole 2a are removed. It is removed (see FIG. 3D). At this time, a load is applied to the periphery of the sealant filling hole 2 a by the rotating buff 26, but the tire tube 2 is deformed by the frictional force received from the buff 26 because the portion is clamped immovably by the clamp member 25. Damage can be reliably prevented. Subsequently, after the vacuum pad 24 connected to a negative pressure source (not shown) is lowered and adsorbed around the sealant filling hole 2a, the clamp by the clamp member 25 is temporarily released to enter the sealant chamber 6. The remaining air is sucked (see FIG. 3E). After the air in the sealant chamber 6 is sucked, the tire tube 2 is clamped again by the clamp member 25 and the vacuum pad 24 is retracted. Thereby, there is no possibility that air may enter the sealant chamber 6 again from the sealant filling hole 2a.
[0022]
Subsequently, the raw rubber patch 28 is set around the sealing agent filling hole 2a by the raw rubber patch setting device 27 (see FIG. 4 (F)), and the raw rubber patch 28 is further heated by the iron 29 incorporating an electric heater. The sealing agent filling hole 2a is closed by vulcanizing and bonding around the filling hole 2a (see FIG. 4G). Thus, since the raw rubber patch 28 is vulcanized and bonded with the clamp member 25 clamped so as to surround the periphery of the sealant filling hole 2a, it is possible to reliably prevent the bonding position from shifting and ensure the bonding quality. Can do. Further, since the raw rubber patch 28 is vulcanized and bonded after the periphery of the sealing agent filling hole 2a is polished with the buff 26, it is possible to avoid a decrease in the bonding strength due to the dirt on the bonding surface. Then, the raw rubber patch setting device 27 and the clamp member 25 are retracted upward to complete the tire tube 2 (see FIG. 4 (H)). In the tire tube 2 immediately after completion, the sealant 7 stays at the bottom of the sealant chamber 6. However, when the tire tube 2 is mounted on the tire body 1 and actually travels, the sealant 7 is caused by centrifugal force. It diffuses uniformly inside the sealant chamber 6.
[0023]
Next, a specific structure of the sealing agent enclosure for executing the steps of FIGS. 3C to 4H will be described with reference to FIGS.
[0024]
6 is an index table 42 provided with six tire tube support portions 41 at 60 ° intervals, and in the state where four tire tubes 2 are supported on each tire tube support portion 41, It rotates intermittently around the axis L at 60 ° intervals. A portion indicated by a solid line in FIG. 6 is a tool base 43 fixed in a non-rotatable manner, and is provided with six work stations S1 to S6 at intervals of 60 ° on the outer periphery thereof. The six work stations S1 to S6 include a work set station S1 for transferring the four tire tubes 2 filled with the sealant 7 at the sealant filling station S0 (see FIG. 5) to the index table 42, and a tire tube. A buffing / vacuum station S2 for vacuuming the air in the sealant chamber 6 after buffing the periphery of the sealant filling hole 2a of the tire tube 2 supported by the support portion 41, and a raw rubber patch 28 in the sealant filling hole 2a. The patch setting station S3 for setting the sealant and the three iron stations S4 to S6 for closing the sealant filling hole 2a by heating and bonding the set raw rubber patch 28.
[0025]
As shown in FIGS. 7 and 9 to 11, the index table 42 rotatably supported via a bearing 47 on an intermediate portion of a column 46 erected on a floor 44 via a base 45 is provided at the center. An annular rotating plate 48 positioned, twelve arm members 49 extending radially from the rotating plate 48, and the tire tube support portion 41 connecting the two adjacent arm members 49 are provided. The tire tube support portion 41 includes a connecting member 50 extending in the tangential direction of the index table 42, four substrates 51 extending parallel to the outer side in the radial direction from the connecting member 50, and the tire tube support provided at the tip of the substrate 51. The member 21 includes a cylinder 52 that is vertically supported on the lower surface of the substrate 51, and the clamp member 25 that is fixed to the piston rod 52 a of the cylinder 52 that protrudes from the upper surface of the substrate 51.
[0026]
A support plate 54 is fixed to the tip of a stay 53 that is fixed to the support 46 in the radial direction, and a positioning cylinder 55 of the index table 42 is fixed to the support plate 54 in the vertical direction. A positioning pin 57 is slidably supported on a guide member 56 fixed to the support plate 54, and the lower end of the positioning pin 57 is coupled to the upper end of the piston rod 55 a of the cylinder 55. A positioning block 59 is fixed to a connecting plate 58 that connects the lower surfaces of the pair of arm members 49, and a pin hole 59 a into which the upper end of the positioning pin 57 can be fitted is formed in the positioning block 59.
[0027]
A motor support plate 61 is fixed to a stay 60 fixed in a radial direction to the support 46 so that the position of the motor support plate 61 can be adjusted. A drive sprocket 63 is fixed to an output shaft 62 a of a motor 62 supported by the motor support plate 61. The driving sprocket 63 and the driven sprocket 64 fixed to the rotating plate 48 are connected by an endless chain 65.
[0028]
Thus, when the motor 62 is driven, the index table 42 rotates through the drive sprocket 63, the endless chain 65, and the driven sprocket 64. When the six tire tube support portions 41 stop at positions corresponding to the corresponding work stations S1 to S6, the cylinder 55 extends and the positioning pins 57 are fitted into the pin holes 59a of the corresponding positioning blocks 59, and the index table. 42 is non-rotatably positioned.
[0029]
As shown in FIG. 8, the tool base 43 fixed to the upper end of the support column 46 includes six arm members 71 extending radially and a connecting member 72 that connects the distal ends of the arm members 71 in a hexagonal shape. Six work stations S1 to S6 are supported on each of the six connecting members 72.
[0030]
First, the structure of the work set station S1 will be described based on FIG. 8 and FIG.
[0031]
The work set station S1 includes a laser pointer support member 74 supported by a connecting member 72 via an L-shaped stay 73. The four laser pointers 75 provided on the laser pointer support member 74 are respectively tires. The center of the tube support member 21 is directed.
[0032]
Accordingly, when the worker attaches four tire tubes 2 to the tire tube support member 21 of the index table 42 at the work set station S1, the tire tube 2 is sealed at the position irradiated with the laser beam from the laser pointer 75. By positioning the agent filling hole 2a and driving the cylinder 52 to contract in this state, the periphery of the sealant filling hole 2a of the tire tube 2 is accurately clamped between the clamp member 25 and the tire tube support member 21. (See FIG. 3C).
[0033]
Next, the structure of the buffing / vacuum station S2 will be described with reference to FIGS.
[0034]
A guide rail 77 is fixed to the upper surface of the support plate 76 fixed to the connecting member 72, and a slide plate 79 is fixed to a slider 78 that is slidably fitted to the guide rail 77. A pinion 81 is fixed to the lower end of an output shaft 80a extending downward from the motor 80 supported on the upper surface of the slide plate 79 through the slide plate 79, and fixed to the upper surface of the support plate 76 in parallel with the guide rail 77. The pinion 81 meshes with the rack 82. Accordingly, when the motor 80 is driven, the slide plate 79 reciprocates while the slider 78 is guided by the guide rail 77 by the reaction force received by the pinion 81 from the rack 82.
[0035]
Two guide rails 84 are fixed in a vertical direction on a support plate 83 fixed to the slide plate 79, and a slide plate 86 is slidably supported on the guide rail 84 via a slider 85. A stay 87 fixed to the support plate 83 and a slide plate 86 are connected by a spring 88, and the slide plate 86 is suspended by the spring 88. The tension of the spring 88 can be adjusted by an adjusting bolt 89 that supports the upper end of the spring 88. The lower limit position of the slide plate 86 that moves up and down can be adjusted by bringing the adjustment bolt 91 provided at the upper end of the stay 90 fixed to the slide plate 86 into contact with the upper end of the support plate 83.
[0036]
The output shaft of the motor 92 supported on the back surface of the slide plate 86 passes through the slide plate 86 and is fixed to a drive pulley 93 fixed thereto and a follower shaft fixed to a buff shaft 95 supported on the slide plate 86 via a bracket 94. The pulley 96 is connected by an endless belt 97. Therefore, when the motor 92 is driven, the buff shaft 95 rotates through the drive pulley 93, the endless belt 97, and the driven pulley 96, and the buff 26 fixed to the buff shaft 95 rotates. The periphery of the buff 26 is covered with a cover 99, and the inside of the cover 99 is connected to a blower (not shown) via an air blow duct 100.
[0037]
A support member 102 is fixed to the tips of two stays 101 erected on the upper surface of the arm member 71, and four cylinders 104 are supported downward on the support member 102 via brackets 103. The vacuum pad 24 is provided at the lower end of the piston rod 104 a of the cylinder 104, and the vacuum pad 24 and a vacuum source (not shown) are connected by a vacuum hose 105. In addition, the middle part of the air blow duct 100 is suspended and supported via the spring 107 on the upper end of the support column 106 erected on the support member 102.
[0038]
Thus, in the buffing / vacuum station S2, the slide plate 79 is reciprocated in the horizontal direction by the motor 80 while the buff 26 is rotated by the motor 92, whereby the tire tube support portion 41 is clamped by the clamp member 25. The circumference | surroundings of the sealing agent filling hole 2a of each tire tube 2 are buffed, and the dirt etc. which adhered there are cleaned. At this time, the amount of interference between the buff 26 and the tire tube 2 can be adjusted by the adjusting bolt 91, and the surface pressure at which the buff 26 contacts the tire tube 2 can be adjusted by the adjusting bolt 89. The dust scattered inside the cover 99 during the polishing by the buff 26 is blown off by the air from the air blow duct 100.
[0039]
When the buff 26 is retracted to a position where it does not interfere with the vacuum pad 24, the cylinder 104 is driven to extend and the vacuum pad 24 is lowered to adsorb around the sealant filling hole 2a of the tire tube 2. The air remaining in the sealant chamber 6 of the tire tube 2 is sucked by the vacuum pad 24 in a state where the clamp by the clamp member 25 is temporarily released. Then, the tire tube 2 is clamped again by the clamp member 25 and closed so that air does not enter the sealant chamber 6, and the cylinder 104 is driven to contract and the vacuum pad 24 is retracted upward.
[0040]
Next, the structure of the patch set station S3 will be described based on FIGS. 8, 15 and 16. FIG.
[0041]
As shown in FIG. 8, a drum 113 around which a strip-shaped raw rubber sheet 112 is wound, a driven roller 114 for guiding the raw rubber sheet 112, and a driving roller 115 for winding the raw rubber sheet 112 are supported between the left and right frames 111. The raw rubber sheet 112 is wound from the drum 113 onto the drive roller 115 by intermittently driving the drive roller 115 with a drive source (not shown).
[0042]
As is apparent when referring to FIGS. 15 and 16, two beams 117 are fixed to four columns 116 erected on the upper portion of the tool base 43, and the guides are fixed to the lower surfaces of both beams 117. The slide plate 120 is supported on the rail 118 via the slider 119. The piston rod 122a of the cylinder 122 supported at the rear end by the connecting member 121 that connects the two beams 117 is connected to the slide plate 120, and the slide plate 120 moves along the guide rail 118 by the expansion and contraction of the cylinder 122. To do. The raw rubber patch set device 27 is supported by the four slide guides 125 provided on the stay 124 on the lower surface of the slide plate 120 so as to be slidable in the vertical direction, and the piston rod 127a of the cylinder 127 provided on the upper surface of the slide plate 120. Is connected to the upper end of the raw rubber patch setting device 27. A circular cutter 128 for cutting the raw rubber patch 28 from the raw rubber sheet 112 is provided on the lower surface of the slide rod 126, and an internal space of the cutter 128 is selectively used as a vacuum source and a pressure source (not shown) via an air hose 129. Connected to.
[0043]
Thus, the cylinder 122 is driven to extend to stop the slide plate 120 at a position above the raw rubber sheet 112, and then the cylinder 127 is driven to extend to lower the slide rod 126, and the cutter 128 removes the raw rubber patch from the raw rubber sheet 112. 28 is cut. The cut raw rubber patch 28 is held by the cutter 128 by the negative pressure transmitted from the air hose 129. Subsequently, after the cylinder 127 is driven to contract and the raw rubber patch set device 27 is raised, the cylinder 122 is driven to contract and the slide plate 120 is stopped at a position above the tire tube 2. Then, the cylinder 127 is driven to extend to lower the raw rubber patch setting device 27, and the raw rubber patch 28 supported by the cutter 128 is brought into contact with the sealant filling hole 2 a of the tire tube 2 so as to cover the inside of the cutter 128. The raw rubber patch 28 is delivered to the tire tube 2 by applying pressure from the source (see FIG. 4F).
[0044]
Since the longitudinal direction of the raw rubber sheet 112 and the direction in which the four raw rubber patch setting devices 27 are aligned intersect at a predetermined angle, when the raw rubber patch 28 is cut while the raw rubber sheet 112 is intermittently wound up, The yield of the material can be increased by minimizing the portion of the raw rubber sheet 112 that is not cut and is wasted (see FIG. 8).
[0045]
Next, the structure of the ironing station S4 will be described based on FIG. 8 and FIG. The structures and functions of the other two iron stations S5 and S6 are the same.
[0046]
A support plate 131 is fixed to the tips of the two arm members 130 extending from the connecting member 72, and four cylinders 132 are supported downward on the support plate 131. The iron 29 is provided at the lower end of the piston rod 132 a of the cylinder 132. Therefore, by pressing the high temperature iron 29 against the raw rubber patch 28 set on the tire tube 2 and heating it, the raw rubber patch 28 can be vulcanized and bonded to the tire tube 2 to close the sealant filling hole 2a.
[0047]
As described above, the index table 42 is rotated by 60 °, and the respective tire tube support portions 41 are sequentially stopped at the six work stations S1 to S6, and four tire tubes are installed at the work stations S1 to S6. 2 can be performed in a predetermined order, and can be performed simultaneously in a plurality of work stations S1 to S6, so that a large number of tire tubes 2 can be performed in a short time. Can be processed.
[0048]
As mentioned above, although the Example of this invention was explained in full detail, this invention can perform a various design change in the range which does not deviate from the summary.
[0049]
For example, although the embodiment includes three iron stations S4 to S6, at least one iron station is sufficient. In the embodiment, the buffing / vacuum station S2 in which the buffing station and the vacuum station are integrated is provided. However, the buffing station and the vacuum station may be provided separately.
[0050]
【The invention's effect】
As described above, according to the invention described in claim 1, a plurality of tire tube support portions that support a plurality of tire tubes and clamp them with a clamp member are provided on the outer periphery of the index table that intermittently rotates by a predetermined angle. Since the work set station, buff station, vacuum station, patch set station, and iron station are provided at the position facing the plurality of tire tube support parts of the stopped index table, the tire tube support part at the work set station By rotating the index table intermittently while supporting the tire tube and clamping the periphery of the sealant filling hole, the periphery of the sealant filling hole is polished at the buff station and the air present in the sealant chamber at the vacuum station Evacuate The raw rubber patch can be set in the sealant filling hole at the chiset station, and the raw rubber patch can be heated and bonded at the ironing station to close the sealant filling hole, and the above series of operations are performed sequentially as the index table rotates. Thus, it can be completed efficiently in a short time.
[0051]
In addition, buffing is performed with the periphery of the hole filled with the sealant clamped, so it is possible not only to prevent the tire tube from being damaged by the load of buffing, but also to remove the oil and dirt and increase the adhesive strength of the raw rubber patch. Since the air in the sealant chamber is exhausted by evacuation, it can be prevented that air is mixed into the sealant and the sealing performance is deteriorated, and the periphery of the sealant filling hole is clamped. Since the sealant filling hole is closed by adhering the raw rubber patch, air can be prevented from entering again into the sealant chamber when the sealing agent filling hole is closed, and stable sealing performance can be ensured.
[0052]
According to the invention described in claim 2, since the plurality of tire tubes are supported on each tire tube support portion, it is possible to process the plurality of tire tubes at the same time, and the working efficiency is improved.
[0053]
According to the invention described in claim 3, since a plurality of tire tubes supported on each tire tube support portion are simultaneously processed at each work station, a plurality of operations are simultaneously advanced to improve work efficiency. Can do.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a wheel equipped with a tube-equipped tire. FIG. 2 is a cross-sectional view taken along line 2-2 in FIG. 1. FIG. 3 is a first partial view illustrating a sealing agent sealing process. Fig. 5 is a perspective view of a sealing agent filling station. Fig. 6 is an overall plan view of a sealing agent filling device. Fig. 7 is an overall plan view of an index table. FIG. 9 is a sectional view taken along the line 9-9 in FIG. 6. FIG. 10 is an enlarged view of the main part in FIG. 9 (sectional view taken along the line 10-10 in FIG. 11).
11 is a view in the direction of arrow 11 in FIG. 10. FIG. 12 is a view in the direction of arrow 12 in FIG. 8. FIG. 13 is a view in the direction of arrow 13 in FIG. 15] A view taken along line 15-15 in FIG. 6 [FIG. 16] A view taken in the direction of arrow 16 in FIG. 15 [FIG. 17] An enlarged view of a main part in FIG.
2 Tire tube 2a Sealing agent filling hole 6 Sealing agent chamber 7 Sealing agent 25 Clamp member 26 Buff 28 Raw rubber patch 41 Tire tube support part 42 Index table S1 Work set station (working station)
S2 Buffing / vacuum station (work station, buffing station, vacuum station)
S3 Patch set station (work station)
S4 Ironing station (working station)
S5 Ironing station (working station)
S6 Ironing station (working station)

Claims (3)

A sealant sealing device for a tire tube containing a sealant for sealing the sealant (7) in a state where air is not mixed into the sealant chamber (6) partitioned inside the tire tube (2),
An index table (42) that intermittently rotates by a predetermined angle;
A tire tube support portion (41) provided at an outer periphery of the index table (42) at each predetermined angle;
A clamp member (25) for clamping the periphery of the sealant filling hole (2a) of the tire tube (2) supported by each tire tube support portion (41);
A plurality of work stations (S1 to S6) provided at positions facing the plurality of tire tube support portions (41) of the index table (42) when the index table (42) stops;
With
The plurality of work stations (S1 to S6) are:
The tire tube (2) in which the sealant (7) and air filled from the sealant filling hole (2a) are present inside the sealant chamber (6) is supported and clamped by the tire tube support (41). A work set station (S1) for clamping with a member (25);
A buff station (S2) for polishing the periphery of the sealing agent filling hole (2a) with a buff (26);
A vacuum station (S2) for evacuating the air present in the sealant chamber (6) in a state where the clamp by the clamp member (25) is temporarily released;
A patch setting station (S3) for setting the raw rubber patch (28) in the sealant filling hole (2a);
An ironing station (S4 to S6) that heat-bonds the set raw rubber patch (28) to close the sealing agent filling hole (2a);
Including
While intermittently rotating the index table (42), each tire tube support (41) is moved to the work set station (S1), buff station (S2), vacuum station (S2), patch set station (S3) and ironing station ( A sealing agent sealing device for a tire tube containing a sealing agent, wherein the predetermined operation is performed by sequentially stopping at positions facing S4 to S6). Each tire tube support part (41) can support a plurality of tire tubes (2), The sealing agent enclosure device of the tire tube containing a sealing agent according to claim 1 characterized by things. The sealing agent according to claim 2, wherein each work station (S1 to S6) can simultaneously process a plurality of tire tubes (2) supported by each tire tube support (41). Sealing device for entering tire tube.

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