JP5878047B2 - Tire outer member holding device and green tire holding device - Google Patents

Description

The present invention relates to a tire outer peripheral member holding device for holding a tire outer peripheral member and a raw tire holding device for holding a raw tire during manufacture of the tire .

  A green tire is generally formed by combining a cylindrical green case and an annular tire outer peripheral member. The tire outer peripheral member includes, for example, a belt and a tread, and is disposed so as to surround the green case. Due to the expansion of the green case, the green case is pressed against the inner periphery of the tire outer peripheral member, and the green case and the tire outer peripheral member are brought into close contact with each other. At that time, the green case is pressed against the tire outer peripheral member held from the outer periphery by the holding device (see Patent Document 1).

FIG. 8 is a diagram illustrating an example of a conventional holding device. FIG. 8A is a front view of a holding member and a tire outer peripheral member included in the holding device. FIG. 8B is a perspective view of one holding member.
As shown in the figure, the conventional holding device 100 includes a plurality of (11 in FIG. 8) holding members 101 arranged in an annular shape and a moving device (not shown) that moves the holding members 101. The plurality of holding members 101 are divided in the tire circumferential direction and are each formed in an arc shape. The moving device moves the plurality of holding members 101 to contact the outer periphery of the tire outer peripheral member T. The tire outer peripheral member T is held by a plurality of holding members 101 and combined with a green case (not shown).

FIG. 9 is a view showing a conventional holding member 101 that holds the tire outer peripheral member T. As shown in FIG. In FIG. 9, the holding member 101 and the tire outer peripheral member T are shown as viewed from the outer side in the tire radial direction. In addition, a part of the three holding members 101 and the tire outer circumferential member T in the tire circumferential direction is developed and shown in a plane.
As illustrated, the edge of the holding member 101 is parallel to the tire width direction W at the dividing position R of the holding member 101. Further, a gap 102 parallel to the tire width direction W is formed between the adjacent holding members 101.

  When forming a green tire, the outer periphery of the tire outer peripheral member T may be deformed by being pressed against the gap 102 between the holding members 101 due to the pressure received from the green case. Thereby, the uniformity of the tire after vulcanization may be reduced, and the RFV (Radial Force Variation) of the tire may be increased. In this case, the traveling tire generates a sound corresponding to the number of the gaps 102, and the vehicle and the tire resonate. As a result, the sound generated when the tire travels may increase, and improvements are demanded from the viewpoint of reducing noise. Particularly in tires for electric vehicles, since the sound generated by the vehicle is small, it is required to further reduce the sound generated by the tire.

JP 2005-111890 A

  The present invention has been made in view of the above-described conventional problems, and an object of the present invention is to improve the uniformity of the tire and reduce the sound generated when the tire travels.

The present invention relates to a holding device of a tire outer peripheral member for holding the outer periphery of the annular tire outer peripheral member, disposed annularly surrounds the tire outer peripheral member, a plurality of divided in the tire circumferential direction holding member and a plurality of includes a mobile device to contact by moving the holding member in the tire outer peripheral member, a plurality of holding members, the dividing position in the tire circumferential direction, respectively, it has a slope portion inclined with respect to the tire width direction, a plurality of A gap that is inclined with respect to the tire width direction is formed between the inclined portions facing each other at each division position of the holding member, and a gap that is adjacent to the tire circumferential direction is disposed in the same range in the tire circumferential direction. a holding device of the tire outer peripheral member Yes.
The present invention is also a raw tire holding device for holding an annular green tire from the outer periphery, and is arranged in an annular shape surrounding the green tire and divided in the tire circumferential direction, and a plurality of holding members And a plurality of holding members each having an inclined portion that is inclined with respect to the tire width direction at a division position in the tire circumferential direction. For each divided position, a gap that is inclined with respect to the tire width direction is formed between the opposed inclined portions, and a gap adjacent to the tire circumferential direction has a portion that is disposed in the same range in the tire circumferential direction. A tire holding device.

  ADVANTAGE OF THE INVENTION According to this invention, the uniformity of a tire can be improved and the sound generated at the time of driving | running | working of a tire can be reduced.

It is a side view which shows the tire manufacturing apparatus provided with the holding | maintenance apparatus of this embodiment. It is the front view which looked at the holding | maintenance apparatus from the arrow X direction of FIG. It is a figure which shows the several holding member holding a tire outer peripheral member. It is a perspective view of one holding member. It is a front view which shows the several holding member holding a tire outer peripheral member. It is a figure for demonstrating the uniformity of the tire manufactured with the conventional holding | maintenance apparatus. It is a figure for demonstrating the uniformity of the tire manufactured with the holding | maintenance apparatus of this embodiment. It is a figure which shows the example of the conventional holding | maintenance apparatus. It is a figure which shows the conventional holding member holding a tire outer peripheral member.

An embodiment of a tire outer peripheral member or green tire holding device (hereinafter referred to as a holding device) of the present invention will be described with reference to the drawings.
The holding device of the present embodiment holds an annular tire outer peripheral member or a raw tire from the outer periphery at the time of manufacturing the tire. The tire outer peripheral member is an unvulcanized annular member disposed on the outer periphery of the tire, and has at least a tread provided on the outer peripheral surface of the tire. Below, the example which hold | maintains the tire outer peripheral member which consists of a tread and a belt with a holding | maintenance apparatus is demonstrated.

FIG. 1 is a side view showing a tire manufacturing apparatus provided with the holding device of the present embodiment. FIG. 1 shows a schematic configuration of a tire manufacturing apparatus.
As shown in the figure, the tire manufacturing apparatus 1 includes a first molding device 10, a second molding device 20, and a holding device 30, and molds a raw tire. The first molding device 10 includes a first molding drum 11, a rotating device 12 that rotates the first molding drum 11, and an expansion / contraction mechanism (not shown) of the first molding drum 11. The green case K is made of a predetermined tire constituent member (inner liner, carcass, etc.), and is disposed on the outer periphery of the first molding drum 11. The first forming drum 11 holds the cylindrical green case K and expands the central portion of the green case K.

  The second molding device 20 includes a second molding drum 21, a rotating device 22 that rotates the second molding drum 21, a raw tire assembly drum 23, and an expansion / contraction mechanism (not shown) of the second molding drum 21. ). An annular tire outer peripheral member T is formed by winding a belt and a tread (here, a top tread) around the outer periphery of the second forming drum 21 in order. The holding device 30 is a holding and conveying device for the tire outer peripheral member T and a holding and conveying device for the raw tire, and moves between the raw tire take-out position (not shown) and the second molding drum 21. Two guide rails 2 are installed between the second forming drum 21 and the raw tire take-out position, and the holding device 30 moves on the guide rail 2.

  In the tire manufacturing apparatus 1 of the present embodiment, the green case K is conveyed from the first molding drum 11 to the raw tire assembly drum 23 by a holding and conveying device (not shown) of the green case K, and is transferred to the raw tire assembly drum 23. Place the green case K. Further, after the tire outer peripheral member T is held by the holding device 30, the second molding drum 21 is reduced. Thereby, the tire outer peripheral member T is removed from the second molding drum 21 and is held by the holding device 30. The holding device 30 conveys the tire outer circumferential member T to the raw tire assembly drum 23 and arranges the tire outer circumferential member T around the green case K conveyed from the first molding drum 11. In this state, the green case K is expanded by the raw tire assembly drum 23. The green case K is pressed against the inner periphery of the tire outer peripheral member T and is in close contact with the tire outer peripheral member T. Thus, a green tire is formed by combining the green case K and the tire outer peripheral member T. The tire outer peripheral member T is disposed on the outer periphery of the raw tire. The raw tire is removed from the raw tire assembly drum 23 and conveyed to a vulcanizer (not shown). A raw tire is vulcanized to produce a tire.

Next, the holding device 30 will be described in detail.
FIG. 2 is a front view of the holding device 30 as viewed from the direction of the arrow X in FIG. In FIG. 2, the tire outer peripheral member T before being held is indicated by a one-dot chain line.
As illustrated, the holding device 30 includes an annular support member 31, a driving device 32, a plurality of (herein, 11) holding members 40, and a moving device 33 for the holding member 40. The plurality of holding members 40 are disposed inside the support member 31 and supported by the support member 31 so as to be movable in the tire radial direction (radial direction of the tire outer peripheral member T).

  The support member 31 is fixed to the upper part of the drive device 32 installed on the guide rail 2. The holding device 30 moves along the guide rail 2 while being guided by the guide rail 2 by the driving device 32. The drive device 32 includes, for example, a motor and a rotating body that is rotated by the motor, and moves on the guide rail 2 by the rotating body.

  The plurality of holding members 40 are arranged in an annular shape so as to surround the tire outer peripheral member T, and are divided into a plurality in the tire circumferential direction P (the circumferential direction of the tire outer peripheral member T). The holding member 40 is a sector member (or segment), and is formed in an arc shape when viewed from the tire width direction (the width direction of the tire outer circumferential member T). The inner circumferences of the plurality of holding members 40 are formed in accordance with the outer circumference of the tire outer circumference member T and are gently curved. The tire outer peripheral member T is disposed inside the plurality of holding members 40 by the movement of the holding device 30.

  The plurality of holding members 40 are moved by the moving device 33 and surround and hold the tire outer peripheral member T. In that case, the inner periphery of the some holding member 40 contacts the outer periphery of the tire outer peripheral member T, and the tire outer peripheral member T is hold | maintained from an outer periphery. Further, the moving device 33 separates the plurality of holding members 40 from the outer periphery of the tire outer peripheral member T and releases the holding of the tire outer peripheral member T by the plurality of holding members 40. The plurality of holding members 40 are moved in synchronization with the tire radial direction while being arranged in an annular shape by the moving device 33. The moving device 33 has, for example, an interlocking mechanism that moves the holding member 40 in conjunction with the operation of the piston / cylinder mechanism, and is provided in the support member 31.

  The plurality of holding members 40 are moved by the moving device 33 between a separated position (enlarged position) away from the tire outer peripheral member T and a contact position (reduced position) in contact with the outer periphery of the tire outer peripheral member T. The contact position is a holding position where the holding member 40 holds the tire outer peripheral member T. The moving device 33 moves the plurality of holding members 40 to contact the tire outer peripheral member T, and presses the plurality of holding members 40 against the tire outer peripheral member T with a predetermined force. The plurality of holding members 40 that contact the outer periphery of the tire outer peripheral member T hold the tire outer peripheral member T while maintaining an annular shape. The holding device 30 moves along the guide rail 2 and conveys the tire outer peripheral member T held by the plurality of holding members 40.

FIG. 3 is a view showing a plurality of holding members 40 that hold the tire outer peripheral member T. As shown in FIG. In FIG. 3, the holding member 40 and the tire outer peripheral member T are shown as viewed from the outer side in the tire radial direction. In addition, a part of the four holding members 40 and the tire outer circumferential member T in the tire circumferential direction P are developed on a plane. FIG. 4 is a perspective view of one holding member 40.
As shown in the figure, the holding member 40 has a plate shape and is formed in a parallelogram shape in a plan view. The holding member 40 is formed wider than the contact portion with the tire outer peripheral member T, and is arranged side by side in the tire circumferential direction P. The tire outer peripheral member T is disposed at a position in the holding member 40.

  The plurality of holding members 40 each have an inclined portion 41 that is inclined with respect to the tire width direction W at a division position R in the tire circumferential direction P. The division position R of the holding member 40 is a position where the plurality of holding members 40 are divided in the tire circumferential direction P. Edges of the plurality of holding members 40 are arranged at the division position R and face each other in a state separated in the tire circumferential direction P. The inclined portion 41 is formed at least on the edge of the holding surface (the contact surface of the tire outer peripheral member T) 42 of the holding member 40 and contacts the tire outer peripheral member T. In the edge part of the holding member 40 adjacent to the tire circumferential direction P, the inclined part 41 is inclined in the same direction and faces in a parallel state.

  The inclined portion 41 is formed in the entire portion in contact with the tire outer peripheral member T at the division position R of the holding member 40, and traverses the outer periphery of the tire outer peripheral member T. Further, the inclined portion 41 is inclined at a predetermined angle with respect to the tire width direction W, and is formed linearly at the division position R of the holding member 40. An angle Y of the inclined portion 41 with respect to the tire width direction W is not less than 10 ° and not more than 60 °. Here, the inclined portion 41 is formed so that the angle Y is 45 °. When the holding member 40 holds the tire outer peripheral member T, a gap 43 having a predetermined width is formed between the holding members 40. The gap 43 is formed between the inclined portions 41 facing each other at each division position R of the plurality of holding members 40 and is inclined with respect to the tire width direction W.

  The plurality of gaps 43 are formed to have the same width and are arranged on the outer periphery of the tire outer peripheral member T in a parallel state. The gap 43 adjacent to the tire circumferential direction P has a portion (referred to as an overlapping portion 44) arranged in the same range (Z range in FIG. 3) in the tire circumferential direction P on the outer circumference of the tire outer circumferential member T. The overlapping portions 44 of the adjacent gaps 43 are located away from each other in the tire width direction W, and the holding member 40 between the overlapping portions 44 contacts the tire outer circumferential member T. In the present embodiment, the holding member 40 (see FIGS. 2 and 4) includes a movable member 45 that can be moved and an adjustment member 46 that can be changed. The holding member 40 brings the adjusting member 46 into contact with the tire outer peripheral member T, and holds the tire outer peripheral member T by the adjusting member 46.

FIG. 5 is a front view showing a plurality of holding members 40 that hold the tire outer peripheral member T. FIG. In FIG. 5, the tire outer peripheral member T and the holding member 40 are shown corresponding to FIG. 5A to 5D show tire outer peripheral members T having different outer diameters.
As shown in the figure, the movable member 45 and the adjustment member 46 of the holding member 40 have a plate shape and are overlapped over the whole. The adjustment member 46 is fixed to the movable member 45 by a fixing means (not shown) in a state where the outer surface of the adjustment member 46 is in close contact with the inner surface of the movable member 45. Thereby, the adjustment member 46 is attached to the movable member 45.

  The movable member 45 (see FIGS. 5A to 5C) is an outer member located on the outer side (outer peripheral side) of the holding member 40 and is connected to the moving device 33. The moving device 33 moves the entire holding member 40 by moving the movable member 45. The adjusting member 46 is an inner member located on the inner side (inner peripheral side) of the holding member 40 and is a variable member that is changed corresponding to the tire outer peripheral member T to be held. The adjustment member 46 is attached to the movable member 45 and contacts the outer periphery of the tire outer peripheral member T.

  The adjusting member 46 is formed corresponding to the outer diameter and outer peripheral shape of the tire outer peripheral member T. The dimensions of the adjustment member 46 are set according to the distance between the movable member 45 and the tire outer peripheral member T, and the shape of the holding surface 42 is set according to the outer peripheral shape of the tire outer peripheral member T. The holding member 40 is adjusted by the adjusting member 46 so as to correspond to the tire outer peripheral member T, and holds the plural types of tire outer peripheral members T equally. However, as shown in FIG. 5D, when the tire outer circumferential member T can be held only by the movable member 45, the adjustment member 46 is removed from the movable member 45.

  The green case K (see FIG. 1) is expanded inside the tire outer peripheral member T held by the holding member 40, and the green case K is pressed against the inner periphery of the tire outer peripheral member T. In this manner, a green tire is molded, and the green tire is vulcanized to produce a tire. The tire outer circumferential member T receives pressure from the holding member 40 and the green case K when the green tire is molded. As a result, the outer periphery of the tire outer peripheral member T may be deformed by being pressed against the division position R or the gap 43 of the holding member 40. If the outer periphery of the tire outer peripheral member T is deformed, the outer peripheral deformation affects the uniformity of the green tire and the tire after vulcanization molding. In other words, the uniformity of the tire changes according to the deformation of the tire outer peripheral member T.

  At the dividing position R of the conventional holding member 101 (see FIGS. 8 and 9) described above, the edge of the holding member 101 and the gap 102 are parallel to the tire width direction W. When the outer periphery of the tire outer peripheral member T is deformed at the dividing position R or the gap 102, a deformed portion of the outer periphery is formed in parallel to the tire width direction W. Thus, in the conventional holding device 100, since the deformed portion of the tire outer peripheral member T is continuous in the tire width direction W, the influence of the deformation may be amplified and become large. Therefore, in a tire manufactured using the holding device 100, there is a possibility that the uniformity is lowered. An example of the case where the uniformity is lowered will be described based on the RFV representing the tire uniformity.

  FIG. 6 is a view for explaining the uniformity of the tire G manufactured by the conventional holding device 100. FIG. 6A is a plan view showing a gap 102 (hatched in FIG. 6) between the outer periphery of the tire G and the holding member 101. FIG. 6A shows a part of the tire G in the tire circumferential direction P and one gap 102. FIG. 6B is a diagram in which the entire outer periphery of the tire G and the gap 102 are developed in a plane. In FIG. 6B, the tire G is virtually shown contracted in the tire circumferential direction P, and the gap 102 is shown wider than actual. In addition, three RFV waveforms E1, E2, and E3 are shown superimposed on the tire G. Three RFV waveforms E1, E2, and E3 are RFV waveforms of the tire G at three positions F1, F2, and F3 shown in FIG. 6A, respectively. 6C is a diagram illustrating an RFV waveform H1 in the entire tire G. FIG. The RFV waveform H1 is a synthesized wave obtained by synthesizing the RFV waveform at each position of the tire G.

  As illustrated, the RFV increases in the positive direction at the gap 102 and increases in the negative direction at the gap 102. The three RFV waveforms E1, E2, and E3 change in the same manner along the tire circumferential direction P while changing in a wave shape. The positive peak and the negative peak of RFV are located at the same portion in the tire circumferential direction P and are continuous in the tire width direction W. As a result, in the RFV waveform H1 of the entire tire G, the positive peak and the negative peak are amplified, and the amplitude of the RFV waveform H1 is increased. As the RFV of the tire G increases, the sound generated when the tire G travels increases, and the tire G generates a sound corresponding to the number of the gaps 102. Further, the vehicle and the tire G resonate to generate a louder sound.

  On the other hand, in the holding device 30 (see FIG. 3) of the present embodiment, the inclined portion 41 is provided at the division position R of the holding member 40. Therefore, when the outer periphery of the tire outer peripheral member T is deformed by the split position R or the gap 43 between the inclined portions 41, the outer peripheral deformed portion is formed to be inclined with respect to the tire width direction W. Since the deformed portion of the tire outer circumferential member T gradually shifts in the tire circumferential direction P, the influence of the deformation is dispersed in the tire circumferential direction P. As a result, in the tire G manufactured using the holding device 30, the uniformity is improved.

  FIG. 7 is a view for explaining the uniformity of the tire G manufactured by the holding device 30 of the present embodiment. 7A is a plan view showing a gap 43 (hatched in FIG. 7) between the outer periphery of the tire G and the inclined portion 41. FIG. In FIG. 7A, a part of the tire G in the tire circumferential direction P and two gaps 43 are shown. FIG. 7B is a diagram in which the entire outer periphery of the tire G and the gap 43 are developed in a plane. In FIG. 7B, the tire G is shown in a contracted manner in the tire circumferential direction P, and the gap 43 is shown wider than actual. In addition, three RFV waveforms E4, E5, and E6 are shown superimposed on the tire G. Three RFV waveforms E4, E5, E6 are RFV waveforms of the tire G at three positions F4, F5, F6 shown in FIG. 7A, respectively. FIG. 7C is a diagram showing an RFV waveform H2 in the entire tire G. FIG. The RFV waveform H2 is a synthesized wave obtained by synthesizing the RFV waveform at each position of the tire G.

  As illustrated, RFV increases in the positive direction at the gap 43 and increases in the negative direction at the gap 43. The positive peak and the negative peak of RFV are respectively located at portions shifted in the tire circumferential direction P corresponding to the inclination of the gap 43. The three RFV waveforms E4, E5, E6 change in a wave shape in a state of being shifted in the tire circumferential direction P. A positive peak and a negative peak of RFV are dispersed in the tire circumferential direction P, and a positive portion and a negative portion of RFV are located in the same portion in the tire circumferential direction P. As a result, in the RFV waveform H2 of the entire tire G, the positive peak and the negative peak are not amplified, and the amplitude of the RFV waveform H2 is reduced. Since the RFV of the tire G becomes small, the sound generated when the tire G travels becomes small. Since resonance between the vehicle and the tire G is also suppressed, noise is reduced.

  As described above, in the holding device 30 of the present embodiment, the uniformity of the tire G can be improved and the sound generated when the tire G is traveling can be reduced. Further, by changing the adjustment member 46 of the holding member 40, various tire outer peripheral members T can be appropriately held by one holding device 30. Since the gap 43 (see FIG. 3) adjacent to the tire circumferential direction P has the overlapping portion 44, it is possible to prevent only the negative portion (or positive portion) of RFV from being located in the entire tire width direction W. . As a result, the amplitude of the RFV waveform H2 can be reliably reduced, and the sound generated by the tire G can be reliably reduced.

  When the angle Y of the inclined portion 41 with respect to the tire width direction W is less than 10 °, there is a possibility that the influence of the deformation of the tire outer circumferential member T cannot be sufficiently dispersed in the tire circumferential direction P. On the other hand, when the angle Y of the inclined portion 41 exceeds 60 °, the holding member 40 and the support member 31 may interfere with each other. At the same time, since the holding member 40 becomes longer in the tire circumferential direction P, it becomes difficult to manufacture the holding member 40. Therefore, it is preferable that the angle Y of the inclined portion 41 is 10 ° or more and 60 ° or less. By doing in this way, since the influence of a deformation | transformation of the tire outer peripheral member T can fully be disperse | distributed to the tire circumferential direction P, the sound which the tire G generate | occur | produces can be reduced reliably. Further, the interference of the holding member 40 can be prevented, and the holding member 40 can be easily manufactured.

  In addition, you may make it form the part which does not incline in a part of holding member 40 of the division | segmentation position R. FIG. Even if it does in this way, the above-mentioned effect by inclined part 41 will be acquired. However, when the inclined portion 41 is formed over the entire division position R, the effect of the inclined portion 41 can be further increased. The inclined portion 41 may be formed so as to be curved, or may be formed so that the angle changes midway.

  The number of holding members 40 is set corresponding to the shape and dimensions of the tire outer peripheral member T. For example, 5 to 30 holding members 40 are provided in the holding device 30. The thickness of the adjusting member 46 is set corresponding to the difference between the dimensions in the plurality of movable members 45 and the outer diameter of the tire outer peripheral member T. For example, the thickness of the adjustment member 46 is set to 5 to 30 mm.

  In this embodiment, the example which hold | maintains and conveys the tire outer peripheral member T which consists of a tread and a belt with the holding | maintenance apparatus 30 was demonstrated. On the other hand, the tire outer peripheral member T may be a member composed only of a tread or a member composed of a tread and one or more tire constituent members.

  Further, the green tire after molding may be held from the outer periphery by the holding device 30. The raw tire is held in the same manner as the tire outer peripheral member T by the plurality of holding members 40. At that time, the plurality of holding members 40 are arranged in an annular shape so as to surround the green tire and come into contact with the outer periphery of the green tire. The adjustment member 46 is changed corresponding to the raw tire and comes into contact with the raw tire. After the raw tire is taken out by the holding device 30, it is transported to a process (such as a vulcanization process) after the molding process. When the outer periphery of the raw tire is deformed by the holding member 40, the influence of the outer periphery deformation is dispersed in the tire circumferential direction P. Therefore, the uniformity of the tire G can be improved and the sound generated when the tire G is traveling can be reduced.

  In this way, by holding the tire outer peripheral member T or the raw tire by the holding device 30, the effect of improving uniformity and reducing the sound of the tire G can be obtained. When the raw tire is held by the holding device 30, the tire circumferential direction, the tire radial direction, and the tire width direction are the circumferential direction, the radial direction, and the width direction of the raw tire, respectively.

  DESCRIPTION OF SYMBOLS 1 ... Tire manufacturing apparatus, 2 ... Guide rail, 10 ... 1st shaping | molding apparatus, 11 ... 1st shaping | molding drum, 12 ... Rotation apparatus, 20 ... 2nd shaping | molding Device: 21 ... Second molding drum, 22 ... Rotating device, 23 ... Raw tire assembly drum, 30 ... Holding device, 31 ... Support member, 32 ... Drive device, 33 ... Moving device, 40 ... Holding member, 41 ... Inclined portion, 42 ... Holding surface, 43 ... Gap, 44 ... Overlapping part, 45 ... Movable member, ... -Adjustment member, G ... tire, K ... green case, R ... division position, P ... tire circumferential direction, T ... tire outer circumferential member, W ... tire width direction.

Claims (10)

A holding device of a tire outer peripheral member holding the annular tire outer peripheral member from the outer periphery,
A plurality of holding members that are annularly arranged around the tire outer circumferential member and divided in the tire circumferential direction;
Comprising a moving device for contacting the tire outer peripheral member to move the plurality of holding members, and
A plurality of holding members, the dividing position in the tire circumferential direction, respectively, have a slope portion inclined with respect to the tire width direction,
A gap that is inclined with respect to the tire width direction is formed between the inclined portions facing each other at each of the divided positions of the plurality of holding members,
Gap adjacent to the tire circumferential direction, the holding device of the tire outer peripheral member have a portion disposed in the same range in the tire circumferential direction. In the holding | maintenance apparatus of the tire outer periphery member described in Claim 1,
Holding a tire outer peripheral member, wherein the holding member includes a movable member connected to the moving device, and an adjustment member attached to the movable member and contacting the tire outer peripheral member, and being changed corresponding to the tire outer peripheral member . apparatus. Holding device tire outer peripheral member according to claim 1 or 2,
Angle, 10 ° or 60 ° holding device Der Ru tire outer peripheral member or less with respect to the tire width direction of the inclined portion. In the holding | maintenance apparatus of the tire outer periphery member described in any one of Claim 1 thru | or 3,
A holding device for a tire outer peripheral member , wherein the inclined portion is formed on the entire portion in contact with the tire outer peripheral member at a division position of the holding member . In the holding | maintenance apparatus of the tire outer periphery member described in any one of Claim 1 thru | or 4,
A holding device for a tire outer peripheral member in which an inclined portion is linearly formed at a division position of the holding member. A raw tire holding device for holding an annular green tire from the outer periphery ,
A plurality of holding members arranged in an annular shape surrounding the raw tire and divided in the tire circumferential direction;
A moving device that moves the plurality of holding members to contact the green tire, and
The plurality of holding members each have an inclined portion that is inclined with respect to the tire width direction at a division position in the tire circumferential direction,
A gap that is inclined with respect to the tire width direction is formed between the inclined portions facing each other at each of the divided positions of the plurality of holding members,
A raw tire holding device having a portion in which a gap adjacent in the tire circumferential direction is disposed in the same range in the tire circumferential direction . The raw tire holding device according to claim 6,
A holding device for a raw tire, wherein the holding member includes a movable member connected to the moving device, and an adjustment member that is attached to the movable member, contacts the raw tire, and is changed corresponding to the raw tire. The raw tire holding device according to claim 6 or 7,
A raw tire holding device in which an angle of the inclined portion with respect to the tire width direction is 10 ° or more and 60 ° or less. The raw tire holding device according to any one of claims 6 to 8,
An apparatus for holding a raw tire, wherein the inclined portion is formed on the entire portion in contact with the raw tire at the division position of the holding member. The raw tire holding device according to any one of claims 6 to 9,
The raw tire holding device in which the inclined portion is linearly formed at the dividing position of the holding member.

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