Long member attaching device, tire manufacturing device, long member attaching method, and tire manufacturing method

Abstract

To suppress unintentional displacement of a long member when adhering it to an attached member without prior increase in bending rigidity of the long member, in the present invention.SOLUTION: A long member adhering device 10 is configured to press and adhere a conductive yarn 44 being a long member, to a carcass 38 being a member to be adhered. The long member adhering device 10 includes: a cutter 54 for cutting the conductive yarn 44; a first chuck 50 that grips the conductive yarn 44 on an upstream side of the cutter 54 in a transport path of the conductive yarn 44; and an adsorption roller 56 and a clamp roller 58, which are clamping parts that can clamp the conductive yarn 44 downstream of the cutter 54 in the transport path of the conductive yarns 44 and that press and adhere the conductive yarns 44 to the carcass 38 while contacting the carcass 38. A first chuck 50, which is a pull-out part, pulls a tip of the conductive yarn 44 cut by the cutter 54, to the downstream side of the adsorption roller 56 and the clamp roller 58 in the transport path of the conductive yarn 44 in preparation for the next adhesion.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to an elongated member attaching device, a tire manufacturing device, an elongated member attaching method, and a tire manufacturing method.

Background Art

[0002] For example, Patent Document 1 discloses a fiber bundle attaching device that attaches a fiber bundle to a predetermined attachment position on a surface to be attached using a thermosetting adhesive. The fiber bundle attaching device includes a conveying device for the fiber bundle, an adhesive applying means for applying the thermosetting adhesive to the fiber bundle and / or the attachment position, and a pressing means for pressing and attaching the fiber bundle onto the surface to be attached. The fiber bundle attaching device is characterized by further including a heating means for heating the thermosetting adhesive applied by the adhesive applying means prior to the pressing and attaching operation by the pressing means.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the configuration described in Patent Document 1 above, since the thermosetting adhesive is applied to the fiber bundle and attached while being pre-heated, a method of attaching the fiber bundle while it is cured, that is, while the bending rigidity of the fiber bundle is low, is not disclosed.

[0005] An object of the present invention is to provide an elongated member attaching device, a tire manufacturing device, an elongated member attaching method, and a tire manufacturing method capable of successively attaching an elongated member to an adherend member while cutting the elongated member into a predetermined length in a step of attaching the elongated member to the adherend member without previously increasing the bending rigidity of the elongated member.

Means for Solving the Problems

[0006] The long member attaching device of the first aspect includes a cutter that cuts a long member supplied from a supply unit, a first chuck that grips the long member on the upstream side of the conveyance path of the long member that is longer than the cutter, and a long member that can sandwich the long member on the downstream side of the conveyance path of the long member from the cutter, and a sandwiching unit that presses and attaches the long member to the member to be attached, and a drawing unit that draws the tip of the long member cut by the cutter to the downstream side of the conveyance path of the long member of the sandwiching unit in preparation for the next attachment. At least one of the first chuck, the sandwiching unit, and the drawing unit always grips or sandwiches the long member so that the long member does not deviate from the conveyance path.

[0007] According to this long member attaching device, in the step of attaching the long member to the member to be attached, while always gripping or sandwiching the long member by at least one of the first chuck, the sandwiching unit, and the drawing unit so that the long member does not deviate from the conveyance path, the long member is pressed against the member to be attached and attached, and it is possible to prepare for the attachment of the long member in preparation for the next attachment.

[0008] Further, according to this long member attaching device, by repeating the cutting of the long member by the cutter and the drawing of the tip of the long member by the drawing unit, a plurality of cut long members can be successively attached to the member to be attached.

[0009] The long member attaching device of the second aspect is the long member attaching device described in the first aspect, wherein the first chuck also serves as the drawing unit.

[0010] According to this long member attaching device, since the first chuck also serves as the drawing unit, the number of parts of the long member attaching device is reduced as compared with the case where the first chuck does not also serve as the drawing unit.

[0011] The long member attaching device according to the third aspect is the long member attaching device according to the first aspect or the second aspect, wherein the clamping portion includes a suction roller that sucks the long member on the circumferential surface, and a clamp roller that clamps the long member together with the suction roller.

[0012] According to this long member attaching device, since the clamping portion is the suction roller and the clamp roller, it is possible to press the long member against the member to be attached while clamping the long member.

[0013] Further, since the long member is adsorbed by the suction roller, even when the long member is not clamped by the suction roller and the clamp roller, the long member can be pressed by only the suction roller and attached to the member to be attached.

[0014] The long member attaching device according to the fourth aspect is the long member attaching device according to any one of the first aspect to the third aspect, further including a second chuck that grips the long member upstream of the transport path of the long member from the first chuck.

[0015] According to this long member attaching device, compared with the case where the second chuck is not provided, in a state where the clamping portion grips the long member pulled out by the pulling portion, it is further suppressed that the long member comes off from the clamping portion while the pulling portion returns.

[0016] The long member attaching device according to the fifth aspect is the long member attaching device according to any one of the first aspect to the fourth aspect, wherein the long member is a conductive thread.

[0017] According to this long member attaching device, since the long member is a conductive thread, it is possible to add conductivity to the member to be attached.

[0018] The elongate member attaching device according to the sixth aspect is the elongate member attaching device according to any one of the first to fifth aspects, wherein the clamping portion is attached to the end of an arm that moves in the X direction and the Y direction, which are perpendicular to each other, and rotates about the Z direction among the X direction, Y direction, and Z direction that are perpendicular to each other.

[0019] According to this elongate member attaching device, since the arm moves in the X direction and the Y direction, which are perpendicular to each other, and rotates about the Z direction among the X direction, Y direction, and Z direction that are perpendicular to each other, it is possible to attach the elongate member to the adherend member arranged three-dimensionally.

[0020] The tire manufacturing device according to the seventh aspect includes the elongate member attaching device according to any one of the first to sixth aspects and a tire molding drum, wherein the elongate member is a tire component member, and the adherend member is a tire component member different from the tire component member placed on the tire molding drum.

[0021] According to this tire manufacturing device, since the elongate member, which is a tire component member, is attached to the adherend member, which is another tire component member, it is possible to accurately attach the tire component member to another tire component member.

[0022] The method for attaching a long member according to the eighth aspect is a method for attaching a long member supplied from a supply unit to an adherend by pressing. In this method, a clamping step is performed in which the tip side on the downstream side of the conveyance path of the cut long member is pulled out by a pulling-out unit to the downstream side of the conveyance path of the long member of the clamping unit and clamped by the clamping unit; a moving step is performed in which, with the clamping unit clamping the long member, the pulling-out unit is moved to the upstream side of the conveyance path of the long member with respect to a cutter; an attaching step is performed in which the supplied long member is attached to the adherend while being pressed; a gripping step is performed in which the long member is gripped by a first chuck on the upstream side of the conveyance path of the long member with respect to the cutter; a cutting step is performed in which the long member is cut by the cutter with the first chuck gripping the long member; and a second attaching step is performed in which the long member on the downstream side of the conveyance path of the long member with respect to the chuck cut by the cutter is attached to the adherend while being pressed by the clamping unit.

[0023] According to this method for attaching a long member, while always gripping or clamping the long member by at least one of the first chuck, the clamping unit, and the pulling-out unit so that the long member does not deviate from its conveyance path, it is possible to attach the long member to the adherend and to prepare for the attachment of the long member in preparation for the next attachment.

[0024] Further, according to this method for attaching a long member, by repeating the cutting of the long member by the cutter and the pulling out of the tip of the long member by the pulling-out unit, a plurality of cut long members can be successively attached to the adherend.

[0025] The method for attaching a long member according to the ninth aspect is the method for attaching a long member according to the eighth aspect, wherein the first chuck also serves as the drawing-out portion, and in the clamping step, with the first chuck gripping the long member, the leading end side on the upstream side of the conveyance path of the cut long member is drawn out to the downstream side of the conveyance path of the long member by the clamping portion and clamped by the clamping portion. In the moving step, with the clamping portion gripping the long member, the clamping portion is moved to the upstream side of the conveyance path of the long member with respect to the cutter.

[0026] According to this method for attaching a long member, since the first chuck also serves as the drawing-out portion, the number of parts of the long member attaching device is reduced as compared with the case where the first chuck does not also serve as the drawing-out portion.

[0027] The method for attaching a long member according to the tenth aspect is the method for attaching a long member according to the eighth or ninth aspect, wherein in the moving step, with the second chuck that grips the long member on the upstream side of the conveyance path of the long member with respect to the first chuck, while the clamping portion grips the long member, the long member is gripped on the upstream side of the cutter. The drawing-out portion, in the moving step, is moved to the upstream side of the conveyance path of the long member with respect to the cutter while the clamping portion grips the long member and the second chuck grips the long member.

[0028] According to this method for attaching a long member, since the clamping portion clamps the long member drawn out by the drawing-out portion and the second chuck grips the long member, it is possible to further suppress the long member from coming off the clamping portion while the drawing-out portion returns.

[0029] The method for attaching a long member according to the eleventh aspect is the method for attaching a long member according to any one of the eighth to tenth aspects, wherein the long member is a conductive thread.

[0030] According to this method for attaching the long member, since the long member is a conductive thread, it is possible to add conductivity to the member to which attachment is made.

[0031] The tire manufacturing method of the twelfth aspect is a tire manufacturing method including the method for attaching a long member according to any one of the eighth to eleventh aspects, wherein the long member is a tire component member, and the member to which attachment is made is a tire component member different from the tire component member placed on a tire molding drum.

[0032] According to this tire manufacturing method, since a long member that is a tire component member is attached to a member to which attachment is made that is another tire component member, it is possible to accurately attach the tire component member to another tire component member.

Advantages of the Invention

[0033] According to the present invention, it is possible to provide a long member attaching device and a long member attaching method capable of suppressing the long member from unintentionally shifting when attaching the long member to the member to which attachment is made without previously increasing the bending rigidity of the long member.

Brief Description of the Drawings

[0034]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Embodiments for Carrying Out the Invention

[0035] Hereinafter, an example of an embodiment of the present disclosure will be described with reference to the drawings. In each drawing, the same or equivalent components and parts are given the same reference numerals. Also, the dimensional ratios in the drawings are exaggerated for the convenience of explanation and may be different from the actual ratios.

[0036] In the following description, the "X direction", "Y direction", and "Z direction" refer to three mutually orthogonal directions, which may be different from the actual directions. In the following description, the X direction and the Z direction are each horizontally, as an example, and the Y direction is vertically.

[0037] In the following description, directions such as "upper side", "lower side", "left side", and "right side" indicate the directions on the plane of the drawing being referred to, which may be different from the actual directions.

[0038] FIG. 1 is a cross-sectional view showing a state in which a tire 20, which is an example of a product manufactured using the elongate member attaching device 10 according to the present invention, is assembled with a rim 26 and in contact with the ground G.

[0039] The tire 20 has, as an example, a carcass 38 forming the skeleton of the tire 20 inside, a chafer 24 formed on the rim 26 side with respect to the carcass 38, and a tread portion 30 formed on the ground G side with respect to the carcass 38.

[0040] The chafer 24 is a portion that protects the carcass 38 so that the carcass 38 does not directly touch the rim 26, and is formed of a conductive member. For this reason, the tire 20 is electrically connected to the rim 26.

[0041] Also, a belt 22 is provided over the circumferential direction of the tire 20 on the radially outer side of the tire 20 with respect to the carcass 38.

[0042] Also, a tread rubber 32 is provided on the tread portion 30, which is on the radially outer side of the tire 20 with respect to the belt 22, and the tread rubber 32 is in contact with the ground G.

[0043] Here, in a part of the tread rubber 32 in the thickness direction of the tire 20, as shown in FIG. 1, the conductive rubber 34 is incorporated. This conductive rubber 34 is provided over the entire circumference in the circumferential direction of the tire 20, and a part thereof is in contact with the ground G.

[0044] Further, the belt 22 is formed of a conductive member or a conductive member is incorporated therein, and the belt 22 and the conductive rubber 34 are electrically connected.

[0045] Here, in the sidewall portion 28 which is outside the tire 20 in the thickness direction with respect to the carcass 38, a conductive yarn 44 which is an example of the long member according to the present invention is incorporated from the belt 22 to the chafer 24.

[0046] Therefore, in the tire 20, a conductive path is formed from the vehicle body such as an automobile to which the tire 20 is attached, through the rim 26, the chafer 24, the conductive yarn 44, the belt 22, and the conductive rubber 34, and flows to the ground G.

[0047] The conductive yarn 44 may be made of any material as long as it is a material that electrically connects between the belt 22 and the chafer 24. As an example, it is formed of a chemical fiber in which carbon black is incorporated in the fiber.

[0048] Further, the number and position of the conductive yarns 44 are not limited as long as they electrically connect between the belt 22 and the chafer 24. As an example, three conductive yarns 44 are arranged at intervals of 120° in the circumferential direction on either one side in the width direction of the tire 20.

[0049] The conductive yarn 44 is generally made of a material having a small bending rigidity. Here, the material having a small bending rigidity refers to a material that easily bends in the length direction in an unconstrained state due to external forces such as wind and gravity, residual stress, winding habits, etc.

[0050] FIG. 2 is a view showing a tire manufacturing apparatus 90 provided with a long member attaching device 10 according to the present invention, which is used in a process of attaching a long member to an adherend member, for example, a process of attaching a conductive yarn 44, which is a tire component member, to a carcass 38, which is another tire component member, and incorporating it into a tire 20.

[0051] As shown in FIG. 2, the long member attaching device 10 according to the present invention includes, as an example, an arm 12 that is driven in the X direction and the Y direction and is rotatable about the Z axis.

[0052] Also, as shown in FIG. 2, the long member attaching device 10 according to the present invention is used in a process of incorporating the conductive yarn 44 into the tire 20 together with a supply unit 16 that supplies the conductive yarn 44 and a tire molding drum 14 that fixes the carcass 38, which is an example of the adherend member according to the present invention.

[0053] In the process of incorporating the conductive yarn 44 into the tire 20 shown in FIG. 2, since the surface of the carcass 38 is covered with unvulcanized rubber, the surface of the carcass 38 fixed to the tire molding drum 14 has adhesiveness.

[0054] Thereby, as will be described later, the conductive yarn 44 can be attached to the carcass 38 by being pressed against the surface of the carcass 38.

[0055] As shown in FIG. 2, the carcass 38 is three-dimensionally attached to the tire molding drum 14. That is, the carcass 38 is attached so as to have an outer peripheral surface 40 and a side surface 42 that is a surface facing the outside in the thickness direction of the carcass 38.

[0056] Further, the supply unit 16 according to the present embodiment may have a drive unit (not shown) and may be configured to unwind the conductive yarn 44 and supply the conductive yarn 44 to the long member attaching device 10.

[0057] Next, with appropriate reference to FIGS. 3 and 4, the configuration of the long member attaching device 10 according to the present invention will be described. In the following description, the "transport path" refers to a virtual path along which the conductive yarn 44 is guided and moved during the process of attaching the conductive yarn 44 to the carcass 38.

[0058] (Configuration of the long member attaching device 10) As shown in FIG. 3, in the long member attaching device 10 according to the present embodiment, the conductive yarn 44 is supplied from the supply unit 16, and the conductive yarn 44 is guided and transported by the arm 12.

[0059] Further, the arm 12 is provided with a first chuck 50, a cutter 54, a suction roller 56 and a clamp roller 58, and a second chuck 52 along the transport path of the conductive yarn 44 in the arm 12.

[0060] The first chuck 50 is capable of gripping the conductive yarn 44. More specifically, as shown in FIG. 4 and FIG. 7 described later, the first chuck 50 grips the tip F of the conductive yarn 44, or a portion of the conductive yarn 44 that can become the next tip F by cutting, that is, the vicinity of the upstream side of the cutting position.

[0061] Further, the first chuck 50 also serves as the "drawing-out portion" according to the present invention. As shown in FIG. 4, in a state where the conductive yarn 44 is gripped, the first chuck 50 is movable to the downstream side of the transport path of the conductive yarn 44 with respect to the suction roller 56 and the clamp roller 58, and to the side of the suction roller 56 from this position. The description of this operation will be given later.

[0062] The cutter 54 is provided on the downstream side of the first chuck 50 in the transport path of the conductive yarn 44 and is capable of cutting the conductive yarn 44. Note that the cutter 54 may cut the conductive yarn 44 by any configuration and operation, but as an example, the cutter 54 cuts the conductive yarn 44 by shearing.

[0063] The suction roller 56 is a roller provided at the end of the arm 12 on the downstream side of the cutter 54 in the transport path of the conductive yarn 44 and is rotatably fixed to the arm 12.

[0064] Further, the suction roller 56 has suction holes for sucking air (not shown) arranged in the circumferential direction on its circumferential surface, and the suction holes are connected to a suction pump (not shown).

[0065] Therefore, the suction roller 56 can adsorb the conductive yarn 44 to its circumferential surface by sucking air from the suction holes formed on the circumferential surface.

[0066] Note that, as an example, the suction roller 56 according to the present embodiment desirably has a diameter of 20 mm or more and 50 mm or less.

[0067] The clamp roller 58 is provided on the downstream side of the conveyance path of the conductive yarn 44 with respect to the arm 12, with its circumferential surface facing the suction roller 56, and is rotatably fixed to a shaft that is movable in a direction approaching and separating from the suction roller 56.

[0068] Further, the clamp roller 58 can sandwich the conductive yarn 44 by contacting it with the suction roller 56 with the conductive yarn 44 therebetween. That is, the suction roller 56 and the clamp roller 58 in the present embodiment are an example of the "clamping portion" of the present invention.

[0069] Note that the suction roller 56 is disposed at a position behind the direction in which the arm 12 moves in the step of attaching the conductive yarn 44, which will be described later, with respect to the clamp roller 58.

[0070] More specifically, in FIG. 6, the suction roller 56 is disposed on the left side of the arm 12 that moves to the right, and the clamp roller 58 is disposed on the right side of the suction roller 56.

[0071] Note that the clamp roller 58 according to the present embodiment desirably has a smaller diameter than the suction roller 56. More specifically, in the step of attaching the conductive yarn 44, which will be described later, it is desirable that the clamp roller 58 has a shape that does not touch the carcass 38.

[0072] The second chuck 52 is provided on the upstream side of the conveyance path of the conductive yarn 44 from the initial position of the first chuck 50 and is capable of gripping the conductive yarn 44.

[0073] Note that the operations of the arm 12, the first chuck 50, the second chuck 52, the cutter 54, the suction roller 56, and the clamp roller 58 are each controlled by a control unit (not shown).

[0074] Subsequently, the operations of the long member attaching device 10 in the present embodiment for preparing the conductive yarn 44, attaching the conductive yarn 44, and preparing for the next attachment will be described.

[0075] (Operation of the step of preparing the conductive yarn 44) In the step of preparing the conductive yarn 44, as shown by the solid line and the two-dot chain line in FIG. 3, after the conductive yarn 44 is adsorbed on the peripheral surface of the suction roller 56, it is brought into contact with the carcass 38. The operation of the long member attaching device 10 in the step of preparing the conductive yarn 44 will be described with reference to FIGS. 4 and 5.

[0076] FIGS. 4 and 5 are diagrams showing the operation of the arm 12 in the step of preparing the conductive yarn 44.

[0077] In the first clamping step, the arm 12 is at a position facing the side surface 42 of the carcass 38 (the position shown by the solid line in FIG. 3), and as shown in FIGS. 4(A) and 5(A), the first chuck 50 holds the tip F of the conductive yarn 44 at its initial position.

[0078] In this state, as shown in FIGS. 4(A) and 5(A), the first chuck 50 moves in a direction away from the conveyance path of the conductive yarn 44 (in the negative Z direction) in order to avoid interference with the cutter 54, the suction roller 56, and the clamp roller 58.

[0079] Then, as shown in FIGS. 4(B) and 5(B), the first chuck 50 moves to the downstream side of the conveyance path of the conductive yarn 44 from the suction roller 56 and the clamp roller 58 while gripping the tip F of the conductive yarn 44, thereby pulling out the conductive yarn 44.

[0080] The pulled-out conductive yarn 44 is disposed between the suction roller 56 and the clamp roller 58 when the first chuck 50 moves into the conveyance path of the conductive yarn 44 (in the +Z direction).

[0081] In this state, when the clamp roller 58 moves in the direction of contacting the suction roller 56, as shown in FIGS. 4(C) and 5(C), the conductive yarn 44 is clamped by the suction roller 56 and the clamp roller 58.

[0082] Then, as shown in FIGS. 4(D) and 5(D), with the suction roller 56 and the clamp roller 58 clamping the conductive yarn 44, the first chuck 50 moves to the side of the suction roller 56 (the left side in FIG. 4(D)), causing the conductive yarn 44 to crawl on the peripheral surface of the suction roller 56.

[0083] In this state, by applying the suction force of the suction pump to the suction roller 56, the conductive yarn 44 is adsorbed on the peripheral surface of the suction roller 56.

[0084] In the next movement step, with the conductive yarn 44 adsorbed on the peripheral surface of the suction roller 56, the second chuck 52 grips the conductive yarn 44. In this state, even if the first chuck 50 releases its grip on the conductive yarn 44, the conductive yarn 44 is held and clamped by the second chuck 52, the suction roller 56, and the clamp roller 58, making it less likely to shift unintentionally from the appropriate position.

[0085] In this state, the first chuck 50 releases its grip on the conductive yarn 44, and as shown in FIGS. 4(E) and 5(E), the first chuck 50 moves between the second chuck 52 and the cutter 54 in the conveyance path of the conductive yarn 44 and returns to the initial position shown in FIG. 4(A).

[0086] Then, the arm 12 moves to a position where the side surface 42 of the carcass 38 and the suction roller 56 are in contact (the position indicated by the two-dot chain line in FIG. 3), and by bringing the conductive yarn 44 into contact therewith, the tip F side of the conductive yarn 44 is attached to the carcass 38.

[0087] (Operation of the step of attaching the conductive yarn 44) In the step of attaching the conductive yarn 44, as shown by the solid line and the two-dot chain line in FIG. 6, the arm 12 moves from the left side surface 42 toward the outer peripheral surface 40 of the carcass 38 while pressing the conductive yarn 44 against the carcass 38 by the suction roller 56. The operation of the long member attaching device 10 in the step of attaching the conductive yarn 44 will be described with reference to FIG. 7.

[0088] In the attaching step, as shown in FIG. 7(A), the suction roller 56 is brought into contact with the carcass 38, and at the contact point P with the carcass 38, the tip F side of the conductive yarn 44 is pressed against and attached to the carcass 38.

[0089] In this state, by releasing the gripping of the second chuck 52 and stopping the suction of the suction roller 56, the suction of the conductive yarn 44 is stopped.

[0090] Also, the clamp roller 58 moves in a direction away from the suction roller 56. That is, the clamping of the conductive yarn 44 by the suction roller 56 and the clamp roller 58 is released.

[0091] Then, the arm 12 moves from the left side surface 42 toward the outer peripheral surface 40 while bringing the suction roller 56 into contact with the carcass 38.

[0092] Here, since the suction roller 56 is rotatably fixed, as the arm 12 moves, it rotates and presses the conductive yarn 44 against the carcass 38 at the position of the contact point P where it is in contact with the carcass 38.

[0093] That is, the conductive yarn 44 is pressed as the arm 12 moves, and thus adheres from the left side surface 42 to the outer peripheral surface 40.

[0094] Then, the arm 12 stops moving at a position leaving the length from the contact point P to the cutter 54 among the length for attaching the conductive thread 44 to the carcass 38.

[0095] In the next gripping step, as shown in FIG. 7(B), the first chuck 50 grips the conductive thread 44, and the clamp roller 58 approaches the suction roller 56, so that the clamp roller 58 and the suction roller 56 sandwich the conductive thread 44.

[0096] In the next cutting step, as shown in FIG. 7(C), with the first chuck 50 gripping the conductive thread 44 and the suction roller 56 and the clamp roller 58 sandwiching the conductive thread 44, the cutter 54 cuts the conductive thread 44.

[0097] In the next second attachment step, the arm 12 is moved to the center in the thickness direction of the carcass 38 on the outer peripheral surface 40 (the position indicated by the two-dot chain line in FIG. 6), so that, as shown in FIG. 7(D), the rear end B side of the cut conductive thread 44 is attached to the carcass 38.

[0098] Then, after attaching the rear end B side of the conductive thread 44 to the carcass 38, the arm 12 is moved in a direction away from the carcass 38, more specifically, upward from the position indicated by the two-dot chain line in FIG. 6.

[0099] (Operation of the process for preparing for the next attachment) In the process for preparing for the next attachment, the arm 12 is moved from above the outer peripheral surface 40 of the carcass 38 as shown by the solid line in FIG. 8 toward the left side of the side surface 42 of the carcass 38 as shown by the two-dot chain line.

[0100] Here, the position of the arm 12 indicated by the two-dot chain line in FIG. 8 is the position indicated by the solid line in FIG. 3. That is, the arm 12 is moved to the initial position of the process for preparing the conductive thread 44 in order to prepare for the process of attaching the next conductive thread 44.

[0101] In this way, by executing each step in the process of the long member attaching device 10 preparing the conductive yarn 44, attaching the conductive yarn 44, and preparing for the next attachment, the long member attaching device 10 attaches the conductive yarn 44 to the carcass 38.

[0102] Also, during the process of the long member attaching device 10 preparing for the next attachment, as an example, the tire molding drum 14 is rotated in the circumferential direction to change the position where the conductive yarn 44 is attached to the carcass 38, and an operation of preparing the tire molding drum 14 with another attached carcass 38 is performed.

[0103] Then, the carcass 38 to which the conductive yarn 44 is attached is thereafter used in the manufacture of the tire 20 shown in FIG. 1 together with other tire components such as the belt 22 and the tread rubber 32.

[0104] (Operation and Effect) The operation and effect of the long member attaching device 10 according to the present embodiment are shown below.

[0105] The long member attaching device 10 according to the present embodiment is a long member attaching device 10 that presses and attaches the conductive yarn 44 to the carcass 38, and includes a cutter 54 that cuts the conductive yarn 44, a first chuck 50 that grips the conductive yarn 44 upstream of the conveyance path of the conductive yarn 44 from the cutter 54, and a suction roller 56 and a clamp roller 58 that can sandwich the conductive yarn 44 downstream of the conveyance path of the conductive yarn 44 from the cutter 54 and press and attach the conductive yarn 44 to the carcass 38 while contacting the carcass 38, and a drawing-out portion that draws out the tip F of the conductive yarn 44 cut by the cutter 54 to the downstream side of the conveyance path of the conductive yarn 44 of the suction roller 56 and the clamp roller 58 in preparation for the next attachment. The conductive yarn 44 is always gripped or sandwiched by at least one of the first chuck 50, the suction roller 56, the clamp roller 58, and the drawing-out portion so that the conductive yarn 44 does not deviate from the conveyance path.

[0106] According to the long member attaching device 10 according to the present embodiment, while gripping or sandwiching any part of the conductive yarn 44 so as not to deviate from the conveyance path of the conductive yarn 44, the conductive yarn 44 can be pressed against the carcass 38 for attachment and the attachment of the conductive yarn 44 can be prepared.

[0107] Therefore, since the conductive yarn 44 is held by the first chuck 50 or the state of being sandwiched by the suction roller 56 and the clamp roller 58 is maintained, it is possible to suppress the conductive yarn 44 from unintentionally shifting from an appropriate position during the attachment and preparation of the conductive yarn 44.

[0108] Further, according to the long member attaching device 10 according to the present embodiment, by repeatedly cutting the conductive yarn 44 with the cutter 54 and pulling out the tip F of the conductive yarn 44 with the first chuck 50, a plurality of conductive yarns 44 cut by the carcass 38 can be successively attached.

[0109] Further, the first chuck 50 according to the present embodiment also serves as a drawing portion.

[0110] Therefore, according to the long member attaching device 10 according to the present embodiment, since the first chuck 50 also serves as a drawing portion, the number of parts of the long member attaching device 10 is reduced as compared with the case where the first chuck 50 does not also serve as a drawing portion.

[0111] Further, the sandwiching portion according to the present embodiment is a suction roller 56 that sucks the conductive yarn 44 on the peripheral surface and a clamp roller 58 that sandwiches and sandwiches the conductive yarn 44 together with the suction roller 56.

[0112] Therefore, according to the long member attaching device 10 according to the present embodiment, since the sandwiching portion is the suction roller 56 and the clamp roller 58, it is possible to press the conductive yarn 44 against the carcass 38 while sandwiching the conductive yarn 44.

[0113] As a result, even when the conductive yarn 44 is not sandwiched between the adsorption roller 56 and the clamp roller 58, the conductive yarn 44 is adsorbed by the adsorption roller 56. Therefore, even only with the adsorption roller 56, the conductive yarn 44 can be pressed against the carcass 38.

[0114] In addition, the long member attaching device 10 according to the present embodiment further includes a second chuck 52 that grips the conductive yarn 44 on the upstream side of the conveyance path of the conductive yarn 44 from the first chuck 50.

[0115] Therefore, according to the long member attaching device 10 according to the present embodiment, even when the conductive yarn 44 is sandwiched between the adsorption roller 56 and the clamp roller 58 and the first chuck 50 is not gripping the conductive yarn 44, the second chuck 52 can grip the conductive yarn 44.

[0116] Therefore, compared with the case where the second chuck 52 is not provided, in a state where the adsorption roller 56 and the clamp roller 58 sandwich the conductive yarn 44 pulled out by the first chuck 50, it is further suppressed that the conductive yarn 44 comes off from the adsorption roller 56 and the clamp roller 58 while the first chuck 50 returns.

[0117] In addition, the long member according to the present embodiment is a yarn having conductivity.

[0118] Therefore, according to the long member attaching device 10 according to the present embodiment, since the long member is a yarn having conductivity, it is possible to add conductivity to the carcass 38.

[0119] In addition, by incorporating the carcass 38 added with this conductivity into the tire 20, a tire 20 having a conductive path from the rim 26 to the ground G can be obtained.

[0120] In addition, in the long member attaching device 10 according to the present embodiment, the suction roller 56 and the clamp roller 58 are attached to the end of the arm 12 that moves in the X direction and the Y direction and rotates about the Z direction among the X direction, the Y direction, and the Z direction that are orthogonal to each other.

[0121] Therefore, according to the long member attaching device 10 according to the present embodiment, since the arm 12 moves in the X direction and the Y direction and rotates about the Z direction, it is possible to attach the conductive yarn 44 to the carcass 38 arranged three-dimensionally.

[0122] In addition, in the tire manufacturing device 90 according to the present embodiment, the long member is the conductive yarn 44 that is a tire component member, and the member to be attached is the carcass 38 that is a tire component member different from the conductive yarn 44 and is placed on the tire molding drum 14.

[0123] Therefore, according to the tire manufacturing device 90 according to the present embodiment, since the conductive yarn 44 that is a tire component member is attached to the carcass 38 that is another tire component member, it is possible to accurately attach the tire component member to another tire component member.

[0124] In this way, in the step of attaching the long member to the member to be attached, by using the long member attaching device 10 according to the present embodiment, the long member can be attached to the member to be attached without increasing the bending rigidity of the long member in advance.

[0125] (Modification example) In the description of the long member attaching device 10 according to the present embodiment, the first chuck 50 was also used as the drawing portion. However, the first chuck 50 does not serve as the drawing portion, and another drawing portion may be provided between the first chuck 50 and the cutter 54 in the conveyance path of the conductive yarn 44.

[0126] The drawing portion in this case operates in the same manner as the first chuck 50 in the long member attaching device 10 according to the present embodiment.

[0127] Therefore, in this case, the first chuck 50 performs the operations of gripping and releasing the conductive yarn 44 without pulling out the conductive yarn 44.

[0128] Even when such a configuration and method are adopted, similar to the long member attaching device 10 according to the present embodiment, it is possible to suppress the conductive yarn 44 from unintentionally shifting during the attachment of the conductive yarn 44.

[0129] In addition, the long member attaching according to the present embodiment has the second chuck 52, but it may be configured not to have it.

[0130] Even in this case, when the first chuck 50 returns from a position downstream of the suction roller 56 and the clamp roller 58 to a position upstream of the cutter 54 in the conveyance path of the conductive yarn 44, since the tip F side of the conductive yarn 44 is being held, it is possible to suppress the conductive yarn 44 from unintentionally shifting.

[0131] In this case, it is desirable that, in a state where the suction roller 56 and the clamp roller 58 hold the tip F side of the conductive yarn 44, a tension is applied to the conductive yarn 44 on the upstream side of the conveyance path of the conductive yarn 44 from the suction roller 56 and the clamp roller 58 so as not to come off from the holding portion.

[0132] In addition, the long member attaching device 10 according to the present embodiment uses the conductive yarn 44 as an example of a long member, but is not limited thereto, and may be a member with low bending rigidity such as a strip shape, a string shape, or a film shape.

[0133] Even in this case, similar to the long member attaching device 10 according to the present embodiment, it is possible to suppress the long member from unintentionally shifting when attaching the long member to the member to be attached.

[0134] In addition, the member to be attached according to the present embodiment is the carcass 38 covered with the unvulcanized rubber having adhesiveness on the surface, but is not limited thereto, and a member to be attached having no adhesiveness on the surface may be used.

[0135] In this case, by applying or spraying an adhesive or the like in advance on the surface of the member to which the long member is to be attached or on the long member to impart adhesiveness, and making it possible to attach the long member by pressing the long member against the member to which it is to be attached, it becomes possible to use the long member attaching device 10 according to the present embodiment.

[0136] In addition, even when either one of the member to which the long member is to be attached or the long member is formed of a material having magnetism and the other is formed of a ferromagnetic material, it is possible to use the long member attaching device 10 according to the present embodiment.

[0137] Further, in the description of the present embodiment described above, the clamp roller 58 has a smaller diameter than the suction roller 56. However, in the step of attaching the conductive yarn 44 described above, it is not limited to this as long as the clamp roller 58 is arranged so as not to contact the carcass 38.

[0138] As an example, when the clamp roller 58 is displaced to the upstream side of the conveyance path of the conductive yarn 44 with respect to the suction roller 56, the clamp roller 58 may have a larger diameter than the suction roller 56.

[0139] Further, in the description of the present embodiment described above, the carcass 38 is three-dimensionally arranged by being attached to the tire molding drum 14. However, it is not limited to this, and the member to which the long member is to be attached may be fixed on a plane.

[0140] Even in this case, by using the long member attaching device 10 according to the present embodiment, it is possible to attach the long member to the member to which the long member is to be attached.

[0141] Further, the long member attaching device 10 according to the present embodiment has the suction roller 56 and the clamp roller 58 as an example of the clamping portion. However, the configuration of the clamping portion is not limited to this.

[0142] For example, instead of the suction roller 56 according to the present embodiment, a roller formed of an electromagnet may be used to adsorb a long member having magnetism on its circumferential surface.

[0143] Also, for example, instead of the suction roller 56 according to the present embodiment, a roller having no suction ability may be used.

[0144] Even in such a case, since the roller contacts the adherend member, it is possible to attach the adherend member while pressing the long member.

[0145] Also, for example, instead of the suction roller 56 and the clamp roller 58 according to the present embodiment, a sliding member that does not rotate at the end of the arm 12 and slides at the contact point P with the adherend member may be used.

[0146] Even in such a case, since the sliding member contacts the adherend member while pressing, when attaching the adherend member while pressing the long member, it is possible to suppress the long member from accidentally shifting.

[0147] As described above, the embodiments of the present disclosure have been described with reference to the accompanying drawings. However, it is obvious that those having ordinary knowledge in the technical field to which the present disclosure belongs can conceive of various modification examples or application examples within the scope of the technical idea described in the claims. Naturally, these are also understood to belong to the technical scope of the present disclosure.

Description of Reference Numerals

[0148] 10 Long member attaching device, 12 Arm, 14 Tire molding drum, 16 Supply unit, 20 Tire, 22 Belt, 24 Chafer, 26 Rim, 28 Sidewall portion, 30 Tread portion, 32 Tread rubber, 34 Conductive rubber, 38 Carcass, 40 Outer circumferential surface, 42 Side surface, 44 Conductive yarn, 50 First chuck, 52 Second chuck, 54 Cutter, 56 Suction roller, 58 Clamp roller, 90 Tire manufacturing device, B Rear end, F Front end, G Ground, P Contact point

Claims

1. A cutter for cutting a long member supplied from a supply unit, a first chuck for gripping the long member on the upstream side of the conveyance path of the long member with respect to the cutter, a clamping unit that can clamp the long member on the downstream side of the conveyance path of the long member with respect to the cutter, and presses and adheres the long member to an adherend member, a pulling-out unit that pulls out the tip of the long member cut by the cutter to the downstream side of the conveyance path of the long member of the clamping unit in preparation for the next adhesion, comprising: constantly gripping or clamping the long member by at least any one of the first chuck, the clamping unit, and the pulling-out unit, wherein the first chuck also serves as the pulling-out unit, a long member adhesion device.

2. A cutter for cutting a long member supplied from a supply unit, a first chuck for gripping the long member on the upstream side of the conveyance path of the long member with respect to the cutter, a clamping unit that can clamp the long member on the downstream side of the conveyance path of the long member with respect to the cutter, and presses and adheres the long member to an adherend member, a pulling-out unit that pulls out the tip of the long member cut by the cutter to the downstream side of the conveyance path of the long member of the clamping unit in preparation for the next adhesion, comprising: constantly gripping or clamping the long member by at least any one of the first chuck, the clamping unit, and the pulling-out unit, wherein the clamping unit includes a suction roller that sucks the long member on its circumferential surface and a clamp roller that clamps the long member together with the suction roller, a long member adhesion device.

3. A cutter for cutting a long member supplied from a supply unit, a first chuck for gripping the long member on the upstream side of the conveyance path of the long member with respect to the cutter, a clamping unit that can clamp the long member on the downstream side of the conveyance path of the long member with respect to the cutter, and presses and adheres the long member to an adherend member, a pulling-out unit that pulls out the tip of the long member cut by the cutter to the downstream side of the conveyance path of the long member of the clamping unit in preparation for the next adhesion, comprising: constantly gripping or clamping the long member by at least any one of the first chuck, the clamping unit, and the pulling-out unit, A long member attaching device further comprising a second chuck that grips the long member on the upstream side of the conveyance path of the long member with respect to the first chuck.

4. The long member is a conductive thread. The long member attaching device according to any one of claims 1 to 3.

5. A cutter that cuts a long member supplied from a supply unit, A first chuck that grips the long member on the upstream side of the conveyance path of the long member with respect to the cutter, A clamping unit that can clamp the long member on the downstream side of the conveyance path of the long member with respect to the cutter, and presses and attaches the long member to the member to be attached, A drawing unit that draws the tip of the long member cut by the cutter to the downstream side of the conveyance path of the long member of the clamping unit in preparation for the next attachment, Comprising: The long member is always gripped or clamped by at least one of the first chuck, the clamping unit, and the drawing unit, The clamping unit is attached to the end of an arm that moves in the X direction and the Y direction, which are perpendicular to each other, and rotates about the Z direction, among the X direction, the Y direction, and the Z direction. A long member attaching device.

6. The long member attaching device according to any one of claims 1 to 5, A tire molding drum, Comprising: The long member is a tire component, The member to be attached is another tire component placed on the tire molding drum, different from the tire component, A tire manufacturing device.

7. In a long member attaching method of pressing and attaching a long member supplied from a supply unit to a member to be attached, A clamping step of pulling out the tip side on the downstream side of the conveyance path of the cut long member to the downstream side of the conveyance path of the long member of the clamping unit by a drawing unit and clamping it by the clamping unit, A moving step of moving the drawing unit to the upstream side of the conveyance path of the long member with respect to the cutter while the clamping unit clamps the long member, An attaching step of attaching to the member to be attached while pressing the supplied long member, A gripping step of gripping the long member by a first chuck on the upstream side of the conveyance path of the long member with respect to the cutter, A cutting step of cutting the long member by the cutter while the first chuck grips the long member. A second attaching step of attaching the long member on the downstream side of the conveyance path of the long member from the first chuck cut by the cutter to the member to be attached while pressing the long member by the clamping portion. A method for attaching a long member having the above.

8. The first chuck also serves as the drawing portion. In the clamping step, with the first chuck gripping the long member, the leading end side on the upstream side of the conveyance path of the cut long member is drawn to the downstream side of the conveyance path of the long member by the clamping portion and clamped by the clamping portion. In the moving step, with the clamping portion gripping the long member, the clamping portion is moved to the upstream side of the conveyance path of the long member from the cutter. The method for attaching a long member according to claim 7.

9. In the moving step, by a second chuck that grips the long member on the upstream side of the conveyance path of the long member from the first chuck, with the clamping portion gripping the long member, the long member is gripped on the upstream side from the cutter. The drawing portion, in the moving step, with the clamping portion gripping the long member and the second chuck gripping the long member, is moved to the upstream side of the conveyance path of the long member from the cutter. The method for attaching a long member according to claim 7 or claim 8.

10. The long member is a conductive thread. The method for attaching a long member according to any one of claims 7 to 9.

11. A tire manufacturing method including the method for attaching a long member according to any one of claims 7 to 10, wherein the long member is a tire component, and the member to be attached is a tire component different from the tire component placed on a tire molding drum. A tire manufacturing method.

Images