KR101075042B1 - Winding drum for sheet-like member - Google Patents

Abstract

An object of the present invention is to provide a winding drum of a sheet member in which the range of the suction hole for sucking air can be reliably switched by a simple structure, and the unnecessary contact traces do not occur in the sheet member. This winding drum is detachably attached to the hollow part 13 and the hollow part 13 which communicate with each suction hole H1-H12 of the drum main body 1, and the inner peripheral surface of the hollow part 13 is attached to it. A suction hole and a suction device in a predetermined range in the axial direction of the drum body 1 when the switching member 20 and the switching member 20 are formed so as to be attached to the hollow part 13. It has an air passage (2nd communication hole 20d, 1st communication hole 20b, and hole 20c) which communicates with 30. For this reason, the range of the suction hole which sucks air is switched by replacing the switching member 20 with the switching member which has another air path.

Winding drum

Description

Winding drum with sheet-shaped member {WINDING DRUM FOR SHEET-LIKE MEMBER}

The present invention is, for example, carried on a forming drum or a forming drum wound around the outer circumferential surface of a sheet-like member such as an inner liner member, a side wall member, a carcass member, which is a constituent member of an automobile tire, to be molded into a cylindrical shape. A transfer drum to which a sheet shaped member is wound.

In the tire manufacturing process of a motor vehicle generally known, the cylindrical member which comprises a part of unvulcanized tire is shape | molded by winding several types of sheet-like member on the outer peripheral surface of a shaping | molding drum. Further, when the sheet-like member is wound around the forming drum, the sheet-like member is once wound on the outer circumferential surface of the transfer drum different from the forming drum, and the sheet-like member of the transfer drum may be wound on the forming drum. Here, on the outer circumferential surface of each winding drum, a plurality of suction holes for sucking the sheet-like member by suction of air are formed. In addition, each suction hole reliably supports the sheet-like member on the outer circumferential surface of the winding drum. Moreover, the range of the suction hole which sucks air can be switched so that the suction hole which does not suck the sheet-like member does not suck air unnecessarily.

Winding drums generally known include a drum main body formed in a hollow shape, a plurality of suction holes respectively formed in the drum main body, and suction holes for sucking air in the drum main body while being formed over the entire outer peripheral surface of the drum main body. Means and two first adjusting plates disposed in the drum body and freely moved in the axial direction of the drum body, and second adjusting plates disposed in the drum body and freely moved in the circumferential direction of the drum body. One is known. Air between each of the first adjusting plates is sucked by the suction means, and the suction holes at arbitrary positions in the circumferential direction are closed by the second adjusting plates.

In addition, another winding drum generally known includes a drum body having a plurality of drum members arranged in the circumferential direction, and a plurality of suctions formed in one drum member of each drum member and arranged in the axial direction of the drum body. It is also known to have a hole, suction means in communication with each suction hole, and an on-off valve capable of opening and closing each suction hole, respectively. The valve body of each open / close valve is elastically supported toward the outer side of the drum main body by the spring. In addition, a part of the valve body protrudes outward from the outer peripheral surface of the drum body. Further, when the seat-shaped member abuts against the valve body, the valve body moves inside the drum body in response to the elastic support force of the spring. When the valve body moves inside the drum body, the suction hole is opened.

However, in order to switch the range of suction holes for sucking air, the former winding drum needs a moving mechanism to move each adjustment plate, respectively. In addition, the latter winding drum needs to form an opening / closing valve in each suction hole, respectively. For this reason, the structure of a winding drum becomes complicated, and manufacturing cost of a winding drum increases.

In addition, when a thin and soft sheet-like member such as an inner liner member is wound on the latter winding drum, unnecessary contact traces are generated on the sheet-shaped member by the elastic support force that elastically supports the valve body to the outside of the winding drum.

Patent Document 1: Japanese Unexamined Patent Publication No. 2003-154580

Patent Document 2: Japanese Utility Model Application Laid-Open No. 5-24343

SUMMARY OF THE INVENTION An object of the present invention is to provide a winding drum of a sheet-like member that can reliably switch the range of suction holes for sucking air by a simple structure, and that unnecessary contact traces do not occur in the sheet-like member. Is in.

In order to achieve the above object, the winding drum of the sheet-like member of the present invention is formed at a predetermined position in the circumferential direction of the drum body capable of winding the sheet-shaped member on the outer circumferential surface, and the outer circumferential surface of the drum body, and arranged in the axial direction of the drum body. A plurality of suction holes, a suction means for sucking air from each suction hole such that each suction hole sucks the sheet-shaped member when the sheet member is wound around the outer peripheral surface of the drum body, and the drum body along each suction hole. A hollow portion which is formed in the drum body so as to extend in the axial direction of the hollow body, which is in communication with each of the suction holes, and is formed to extend along the hollow portion, and the outer circumferential surface is formed along the inner circumferential surface of the hollow portion, and can be attached and detached freely in the hollow portion. A suction hole and a suction means formed in the switching member and the switching member, the suction holes of a predetermined range in the axial direction of the drum body And a passage for communicating air.

Thereby, the hollow part communicates with each suction hole, and the switching member formed so that the hollow part along the inner peripheral surface of the hollow part can be attached or detached freely. The switching member is provided with an air passage for communicating the suction hole in the predetermined range with the suction means. For this reason, the range of the suction hole which sucks air is switched by replacing the switching member with the other switching member which has the air passage for communicating with a suction hole of a predetermined range of another axial direction, and a suction means. Therefore, since the range of the suction hole which sucks air is switched reliably by a simple structure, it is very advantageous at the point which aims at reducing the manufacturing cost of a drum main body. In addition, since the switching member is mounted in the hollow portion, the switching member does not protrude out of the drum body from each suction hole. For this reason, when a thin and soft sheet-like member, such as an inner liner member, is wound on a drum main body, unnecessary contact traces do not arise in a sheet-like member, for example. That is, the tire quality can be improved.

Moreover, the winding drum of the sheet-like member of this invention is formed in the drum main body which can wind a sheet-shaped member on the outer peripheral surface, and the some suction hole arrange | positioned at the circumferential direction predetermined position of the outer peripheral surface of the drum main body, and arranged in the axial direction of the drum main body. And suction means for sucking air from each suction hole so that each suction hole sucks the sheet-shaped member when the sheet-shaped member is wound on the outer circumferential surface of the drum body, and extends in the axial direction of the drum body along each suction hole. A hollow part which is formed in the drum body so as to communicate with each suction hole, and which extends along the hollow part, and whose outer circumferential surface is formed along the inner circumferential surface of the hollow part, and which is detachably mounted in the hollow part; Air formed in the switching member for communicating the suction hole and the suction means in a predetermined range in the axial direction of the drum body It has a passage.

Thereby, the hollow part communicates with each suction hole, the switching member is rotatably formed in the hollow part, and the switching member is formed so that it may follow the inner peripheral surface of the hollow part. In addition, an air passage is formed in the switching member. When the switching member is disposed at the rotational direction predetermined position, the suction hole in the predetermined range communicates with the suction means and the air passage. Further, when the switching member is disposed at the other rotational direction predetermined position, the suction hole of the other predetermined range communicates with the suction means and the air passage. For this reason, the range of the suction hole which draws in air is switched by rotation of a switching member. Therefore, since the range of the suction hole which sucks air is switched reliably by a simple structure, it is very advantageous at the point which aims at reducing the manufacturing cost of a drum main body. In addition, since the switching member is formed in the hollow portion, the switching member does not protrude out of the drum body from each suction hole. For this reason, when a thin and soft sheet-like member, such as an inner liner member, is wound on a drum main body, unnecessary contact traces do not arise in a sheet-like member, for example. That is, the tire quality can be improved.

Moreover, the winding drum of the sheet-like member of this invention is the drum main body which can wind a sheet-shaped member on the outer peripheral surface, and the some suction hole formed in the circumferential direction predetermined position of the outer peripheral surface of the drum main body, and arranged in the axial direction of the drum main body. And suction means for sucking air from each suction hole so that each suction hole sucks the sheet-shaped member when the sheet-shaped member is wound on the outer circumferential surface of the drum body, and extends in the axial direction of the drum body along each suction hole. A switching member which is formed in the drum body so as to extend along the hollow portion and the hollow portion communicating with each suction hole, and the outer peripheral surface is formed along the inner peripheral surface of the hollow portion, and is detachably mounted in the hollow portion; A first communication hole formed in the switching member so as to extend in the axial direction of the drum main body, the first communication hole communicating with the suction means; A plurality of second communication holes formed in the ring member to communicate each suction hole and the first communication hole, and a plurality of opening and closing members formed in the switching member to open and close each second communication hole, respectively; have.

Thereby, the hollow part communicates with each suction hole, and a switching member is detachably formed in a hollow part, and the switching member is formed so that it may follow the inner peripheral surface of a hollow part. Moreover, the switching member is formed so that the switching member may extend in the axial direction of the drum main body, and the 1st communication hole which can communicate with a suction means, and the some 2nd communication hole for communicating each suction hole and 1st communication hole, respectively And a plurality of opening and closing members for opening and closing each second communication hole, respectively. For this reason, when each 2nd communication hole opens and closes by each opening / closing member, the range of the suction hole which sucks air is switched reliably. Therefore, since the range of the suction hole which sucks air is switched reliably by a simple structure, it is very advantageous at the point which aims at reducing the manufacturing cost of a drum main body. In addition, since the switching member is formed in the hollow portion, the switching member does not protrude out of the drum body from each suction hole. For this reason, when a thin and soft sheet-like member, such as an inner liner member, is wound on a drum main body, unnecessary contact traces do not arise in a sheet-like member, for example. That is, the tire quality can be improved.

The above and other objects, features, and advantages of the present invention will become apparent from the following description and accompanying drawings.

1 is a perspective view of a drum body showing a first embodiment of the present invention.

2 is a perspective view of a second drum member before inserting the switching member.

3 is a side cross-sectional view of the second drum member before inserting the switching member.

4 is a side cross-sectional view of the second drum member with the switching member inserted therein.

5 is a sectional side view of the main portion of the second drum member in which the switching member is inserted.

6 is a side cross-sectional view of the second drum member before inserting another switching member.

It is a figure which shows the relationship between the position of each suction hole, and the winding position of a sheet-like member.

8 is a side sectional view of a second drum member, illustrating a first modification of the switching member of the first embodiment.

It is a perspective view of the 2nd drum member which shows the 2nd modified example of the switching member of 1st Embodiment.

FIG. 10: is a perspective view of the 2nd drum member which shows the 3rd modified example of the switching member of 1st Embodiment. FIG.

11 is a side sectional view of a second drum member, illustrating a fourth modification of the switching member of the first embodiment.

12 is a side sectional view of a second drum member, illustrating a fifth modification of the switching member of the first embodiment.

FIG. 13 is a side sectional view of a second drum member illustrating a sixth modification example of the switching member of the first embodiment. FIG.

14 is a side sectional view of a second drum member, illustrating a seventh modification of the switching member of the first embodiment.

FIG. 15 is a side sectional view of a second drum member illustrating an eighth modification example of the switching member of the first embodiment. FIG.

16 is a sectional view of a main portion of the second drum member, showing an eighth modification example of the switching member of the first embodiment.

It is a perspective view of the 2nd drum member before inserting the switching member which shows 2nd Embodiment of this invention.

18 is a side sectional view of a second drum member with a switching member inserted therein;

19 is a sectional side view of the main portion of the second drum member in which the switching member is inserted.

It is a side view of the switching member which shows the 1st modification of 2nd Embodiment.

21 is a perspective view of a second drum member, illustrating a second modification of the second embodiment.

It is a side sectional view of the 2nd drum member before inserting the switching member which shows 3rd Embodiment of this invention.

FIG. 23 is a cross-sectional view taken along the line A-A in FIG.

24 is a cross-sectional view taken along the line B-B in FIG. 22.

25 is a side sectional view of a second drum member with a switching member inserted therein;

26 is a sectional side view of the main portion of the second drum member in which the switching member is inserted.

27 is a side sectional view of a second drum member, illustrating a first modification of the third embodiment.

It is sectional drawing of the switching member which shows the 2nd modified example of 3rd embodiment.

It is a perspective view of the drum main body which shows the 3rd modified example of 3rd embodiment.

 Explanation of symbols on the main parts of the drawings

1: drum body 10: first drum member

11: second drum member 11a: hole

13: hollow part 20: switching member

20b: first communication hole 20c: hole

20d: second communication hole 20f: elastic member

21: switching member 21b: first communication hole

21c: hole 21d: second communication hole

22: switching member 22b: first communication hole

22c: hole 22d: second communication hole

23: switching member 23a: first groove portion

23b: second groove 24: switching member

24a: small diameter portion 24b: recessed portion

30: suction device 40: switching member

40b: first communication hole 40c: hole

40d: first hole 40e: second hole

40f: elastic member 41: switching member

41a: first groove 41b: second groove

50: hollow part 51: switching member

51b: first communication hole 51c: hole

51d: first hole 51e: second hole

60: switching member 60b: first communication hole

60c: hole 60d: fitting groove

60e: second communication hole 60f: ring-shaped member

60h: elastic members H1 to H12: suction holes

SE: sheet-shaped member

1 to 7 show a first embodiment of the present invention. 1 is a perspective view of a drum body, FIG. 2 is a perspective view of a second drum member before inserting the switching member, FIG. 3 is a sectional side view of the second drum member before inserting the switching member, and FIG. 2 is a side cross-sectional view of the drum member, FIG. 5 is a side cross-sectional view of the main part of the second drum member in which the switching member is inserted, FIG. 6 is a side cross-sectional view of the second drum member before inserting another switching member, and FIG. 7 is a position of each suction hole. It is a figure which shows the relationship between the winding position of a and a sheet-shaped member.

The winding drums of this sheet-like member are formed so as to be arranged in a circumferential direction with a plurality of first drum members 10 and each of the first drum members 10 arranged at intervals in the circumferential direction of the drum body 1 with each other. The drum main body 1 in the second drum member 11, the plurality of suction holes H1 to H12 formed in the second drum member 11, and the suction drums H1 to H12 in the second embodiment, and the second drum member 11. It is provided with the hollow part 13 formed so that it may extend in the axial direction of, and the switching member 20 which attaches and detaches freely in the hollow part 13 is provided. Here, the sheet-like member SH wound around the winding drum is an unvulcanized rubber sheet or other flexible sheet constituting a tire such as an inner liner member, a side wall member, a curcus member, a belt member, a tread member, or the like. .

Each of the first drum member 10 and the second drum member 11 is supported by a known supporting mechanism, and each of the first drum member 10 and the second drum member 11 has a diameter of the drum body 1. Free to move in the direction. The outer peripheral surface of the drum main body 1 is formed by each 1st drum member 10 and the 2nd drum member 11.

Each suction hole H1 to H12 is arranged in a line in the axial direction of the drum main body 1, and each suction hole H1 to H12 communicates with the hollow part 13, respectively. The openings opened in the hollow portions 13 of the suction holes H1 to H12 are arranged in a row in the axial direction of the drum body 1. The adsorption member 12 is fixed to the outer peripheral surface side of the drum main body 1 of each suction hole H1-H12, respectively. Each suction member 12 is a cylindrical elastic member, and the outer peripheral surface side of the drum body 1 is extended. Each suction member 12 projects slightly from the outer circumferential surface of the drum body 1.

The hollow part 13 is a circular hole extended in the axial direction of the drum main body 1, and the hollow part 13 is formed so that it may follow each suction hole H1-H12. In addition, the hollow part 13 communicates with each suction hole H1-H12, respectively, and the hollow part 13 is opening in the one end surface of the 2nd drum member 11. As shown in FIG. A hole 11a is formed in one end side of the second drum member 11, and one end of the hole 11a is opened in the hollow portion 13. The other end of the hole 11a is connected to a suction device 30 having a known suction pipe 30a and a known compressor 30b. Moreover, the rotary joint 30c attached to the main shaft which is not shown in the drum main body 1 is formed in the middle of the suction pipe 30a.

The switching member 20 is a tubular member having a circular cross section, and the diameter of the outer peripheral surface of the switching member 20 is slightly smaller than the diameter of the inner peripheral surface of the hollow portion 13. Both ends of the switching member 20 are closed by the end face member 20a, respectively, and the 1st communication hole 20b is formed in the switching member 20. As shown in FIG. In addition, the switching member 20 is slightly longer in the axial direction of the drum body 1 than the hollow portion 13. In other words, when the switching member 20 is inserted into the hollow portion 13, one end side of the switching member 20 protrudes from the hollow portion 13. A hole 20c is formed in one end side of the switching member 20, and the hole 20c penetrates the switching member 20 in the radial direction. The hole 20c is formed at a position corresponding to the hole 11a of the second drum member 11. That is, when the switching member 20 is inserted into the hollow part 13, the position of the hole 20c of the switching member 20 and the hole 11a of the 2nd drum member 11 correspond. As a result, the first communication hole 20b of the switching member 20 communicates with the suction device 30. Six second communication holes 20d are formed in the switching member 20, and each second communication hole 20d penetrates the switching member 20 in the radial direction. Moreover, each 2nd communication hole 20d is formed in the position corresponding to each suction hole H3, H4, H5, H8, H9, H10 of the 2nd drum member 11. As shown in FIG. That is, when the switching member 20 is inserted in the hollow part 13, the position of each 2nd communication hole 20d of each switching member 20, and each suction hole H3, H4, H5, H8, H9, H10 Matches. Thereby, each suction hole H3, H4, H5, H8, H9, H10 and the 1st communication hole 20b of the switching member 20 communicate. Therefore, when the suction device 30 starts operation, each suction hole H3, H4, H5, H8, H9, H10 sucks air.

A stopper 11b is formed on one end surface of the second drum member 11. After inserting the switching member 20 in the hollow part 13, when the stopper 11b is rotated to a predetermined position, the stopper 11b abuts on one end of the switching member 20. As shown in FIG. In other words, the switching member 20 is held in the hollow portion 13 by the stopper 11b.

O rings OR1 to OR6 as six ring-shaped elastic members are formed on the outer circumferential surface of the switching member 20. Each O-ring OR1-OR6 consists of a well-known rubber material. Each of the O rings OR1 to OR6 is disposed in a plurality of grooves 20e formed on the outer circumferential surface of the switching member 20. In addition, each groove 20e extends in the circumferential direction of the switching member 20. The outer circumferential surface of each O ring OR1-OR6 protrudes in the radial direction from the outer peripheral surface of the switching member 20 slightly. The O ring OR1 is formed to be located between the suction hole H2 and the suction hole H3, and the O ring OR2 is formed to be located between the suction hole H5 and the suction hole H6. The O ring OR3 is formed to be located between the suction hole H7 and the suction hole H8, and the O ring OR4 is formed to be located between the suction hole H10 and the suction hole H11. O-ring OR5 and O-ring OR6 are arrange | positioned at the one end side of the switching member 20, and the hole 20c is arrange | positioned between O-ring OR5 and O-ring OR6.

When the switching member 20 is inserted into the hollow portion 13, each of the O rings OR1 to OR6 has a gap between the outer circumferential surface of the switching member 20 and the inner circumferential surface of the hollow portion 13 in the axial direction of the drum body 1. Divide each into Thus, when each suction hole H3, H4, H5, H8, H9, H10 sucks air by the operation of the suction device 30, each suction hole H3, H4, H5, H8, H9, H10 The clearance gap between the outer circumferential surface of the switching member 20 and the inner circumferential surface of the hollow portion 13 is sealed so that the suction of air from the suction holes other than the one is regulated.

In the above-described winding drum, the case where the pair of sheet-like members SE is wound on the outer circumferential surface of the drum body 1 will be described below. First, the switching member 20 is inserted into the hollow part 13, and the switching member 20 is hold | maintained in the hollow part 13 by the stopper 11b. Thereby, each suction hole H3, H4, H5, H8, H9, H10 communicates with the suction device 30. As shown in FIG. Next, when winding each sheet-like member SE on the outer peripheral surface of the drum main body 1, each suction hole H3, H4, H5, H8, H9, H10 blows air by operation | movement of the suction apparatus 30. FIG. Aspiration.

Thereby, each suction hole H3, H4, H5, H8, H9, H10 sucks each sheet-like member SE, and each sheet-like member SE is wound by the outer peripheral surface of the drum main body 1 reliably. . Here, since the suction member 12 is formed in each suction hole H3, H4, H5, H8, H9, H10, each suction hole H3, H4, H5, H8, H9, H10 is each sheet-shaped. The member SE is reliably sucked.

On the other hand, when the sheet-shaped member SE having the different width dimension is wound on the drum main body 1, or when the position in which the sheet-shaped member SE is wound is changed, the switching member 20 is changed to another switching member, for example. Replace with (21). The other switching member 21 includes a cross-sectional member 21a, a first communication hole 21b, a hole 21c, a groove 21e and a plurality of O-rings OR7 to OR10 that are equivalent to the switching member 20, Six second communication holes 21d are formed. Each second communication hole 21d is formed at a position corresponding to each suction hole H2, H3, H4, H5, H6, H7 of the second drum member 11. Thereby, the sheet-like member SE can be wound in the position corresponding to each suction hole H2, H3, H4, H5, H6, H7.

That is, the range of the suction holes H1 to H12 that suck air can be arbitrarily changed by preparing a plurality of kinds of switching members. For example, the relationship between the position of each suction hole H1-H12, and the winding position of the sheet-like member SE is shown in FIG. When the sheet-like member SE is wound at the position A, air is sucked from each suction hole H2, H3, H4, H5. When the sheet-like member SE is wound at the position B, air is sucked from each suction hole H7, H8, H9, H10. When the sheet-like member SE is wound at the position C, air is sucked from H1, H2, H3, H7, H8 and H9.

Thus, according to this embodiment, the hollow part 13 communicates with each suction hole H1-H12, and the switching member 20 formed in the hollow part 13 so that the inner peripheral surface of the hollow part 13 may be followed. Is attached and detached freely. In addition, the switching member 20 has an air passage (each of which communicates the suction device 30 with each suction hole H3, H4, H5, H8, H9, H10 in a predetermined range in the axial direction of the drum body 1 (each The 2nd communication hole 20d, the 1st communication hole 20b, and the hole 20c are formed. For this reason, for example, the suction hole which sucks air by replacing the switching member 20 with the switching member 21 which communicates each suction hole H2-H7 of the other axial predetermined range, and the suction device 30 is communicated. The range of is switched. Therefore, since the range of the adsorption hole which attracts air is switched by a simple structure, it is very advantageous at the point which aims at reducing the manufacturing cost of the drum main body 1. As shown in FIG.

Moreover, each O ring OR1-OR6 is formed between the outer peripheral surface of the switching member 20, and the inner peripheral surface of the hollow part 13. As shown in FIG. For this reason, when sucking air from each suction hole H3, H4, H5, H8, H9, H10 by the suction apparatus 30, it is other than each suction hole H3, H4, H5, H8, H9, H10. The gap between the outer circumferential surface of the switching member 20 and the inner circumferential surface of the hollow portion 13 is sealed so that suction of air from the air is restricted. Therefore, the range of the suction hole which sucks air is switched reliably.

Furthermore, since the switching member 20 is mounted in the hollow part 13, the switching member 20 does not protrude outside the drum main body 1 from each suction hole H1-H12. Therefore, for example, when winding thin and smooth sheet-like member SE, such as an inner liner member, to the drum main body 1, unnecessary contact traces do not generate | occur | produce in the sheet-like member SE. That is, the tire quality can be improved.

In addition, a passage of air for communicating the suction holes H3, H4, H5, H8, H9, H10 and the suction device 30 so that the switching member 20 extends in the axial direction of the drum body 1. A first communication hole 20b formed in the communication device 30 and communicable with the suction device 30, and formed in the switching member 20, and each suction hole H3, H4, H5, H8, H9, H10 in a predetermined range in the axial direction. And a plurality of second communication holes 20d for communicating the first communication holes 20b. For this reason, the structure of the said air passage is simple and is very advantageous at the point which aims at reducing manufacturing cost.

In addition, the gap between the outer circumferential surface of the switching member 20 and the inner circumferential surface of the hollow portion 13 is sealed by the respective O rings OR1 to OR6 attached to the switching member 20. For this reason, the clearance gap between the outer peripheral surface of the switching member 20 and the inner peripheral surface of the hollow part 13 is reliably sealed by a simple structure.

In addition, in this embodiment, each O ring OR1-OR6 is formed in the clearance gap between the outer peripheral surface of the switching member 20, and the inner peripheral surface of the hollow part 13. As shown in FIG. On the other hand, by making the clearance gap between the outer peripheral surface of the switching member 20 and the inner peripheral surface of the hollow part 13 as small as possible, it is also possible not to form each O ring OR1-OR6 (refer FIG. 8).

In addition, in this embodiment, the switching member 20 which connects each suction hole H3, H4, H5, H8, H9, H10 and the suction device 30 is formed. On the other hand, for example, it is also possible to form the switching member 22 which communicates each suction hole H8, H9, H10, H11, H12 and the suction device 30 (refer FIG. 9).

In this case, the switching member 22 is a tubular member having a circular cross section, and the detachable member is freely inserted into the hollow portion 13. The diameter of the outer peripheral surface of the switching member 22 is slightly smaller than the diameter of the inner peripheral surface of the hollow portion 13. Both ends of the switching member 22 are closed by the end face member 22a, respectively, and the 1st communication hole 22b is formed in the switching member 20. As shown in FIG. The hole 22c is formed in the one end side of the switching member 22, and the hole 22c has penetrated the switching member 22 in radial direction. The hole 22c is formed at a position corresponding to the hole 11a of the second drum member 11. Moreover, 22 d of 2nd communication holes are formed in the switching member 22, and the 2nd communication hole 22d has penetrated the switching member 22 in radial direction. The second communication hole 22d is an elongated hole extending in the axial direction of the drum main body 1, and is formed at a position corresponding to each suction hole H8, H9, H10, H11, H12. That is, when the switching member 22 is inserted into the hollow part 13, while each suction hole H8, H9, H10, H11, H12 and the 2nd communication hole 22d will communicate, the hole 22c and The holes 11a of the second drum member 11 communicate with each other. That is, when the suction device 30 operates, each suction hole H8, H9, H10, H11, H12 sucks air.

Furthermore, it is also possible to form two O-rings OR11 and OR12 on the outer circumferential surface of the switching member 22 (see FIG. 10). In this case, the O ring OR11 is formed to be located between the suction hole H7 and the suction hole H8. O-ring OR12 is formed so that it may be located in the one end side of the 2nd drum member 11 rather than the hole 11a. As a result, the gap between the outer circumferential surface of the switching member 22 and the inner circumferential surface of the hollow portion 13 is sealed so that the suction of the air from each of the suction holes H8, H9, H10, H11, and H12 is regulated.

In addition, in this embodiment, the switching member 20 which connects each suction hole H3, H4, H5, H8, H9, H10 and the suction device 30 is formed. On the other hand, for example, it is also possible to form the switching member 23 which communicates each suction hole H4, H5, H6, H7, H8 and the suction device 30 (refer FIG. 11).

In this case, the hole 11a of the second drum member 11 is formed between the suction hole H6 and the suction hole H7. The switching member 23 is a circumferential member, and the attachment / detachment is inserted in the hollow part 13 freely. The diameter of the outer peripheral surface of the switching member 23 is slightly smaller than the diameter of the inner peripheral surface of the hollow portion 13. A groove portion 23a extending in the circumferential direction is formed on the outer circumferential surface of the switching member 23. The groove portion 23a is formed at a position corresponding to the hole 11a of the second drum member 11. Moreover, the groove part 23b extended in the axial direction of the drum main body 1 is formed in the outer peripheral surface of the switching member 23, and the groove part 23b communicates with the groove part 23a. The groove part 23a and the groove part 23b correspond to the recessed part described in a claim. The groove part 23b is formed in the position corresponding to the suction hole H4, H5, H6, H7, H8. That is, when the switching member 23 is inserted into the hollow part 13, each suction hole H4, H5, H6, H7, H8 and the groove part 23a will communicate. In addition, the groove portion 23b and the hole 11a of the second drum member 11 communicate with each other. That is, when the suction device 30 operates, each suction hole H4, H5, H6, H7, H8 sucks air.

Furthermore, it is also possible to form two O-rings OR13 and OR14 on the outer circumferential surface of the switching member 23 (see FIG. 12). In this case, the O ring OR13 is formed to be located between the suction hole H3 and the suction hole H4. The O-ring OR14 is formed to be located between the suction hole H8 and the suction hole H9. As a result, the gap between the outer circumferential surface of the switching member 23 and the inner circumferential surface of the hollow portion 13 is sealed so that the suction of air from the suction holes H4, H5, H6, H7, and H8 is regulated.

In addition, in this embodiment, the switching member 20 which connects each suction hole H3, H4, H5, H8, H9, H10 and the suction device 30 is formed. On the other hand, for example, it is also possible to form the switching member 24 which communicates each suction hole H4, H5, H6, H7, H8 and the suction device 30 (refer FIG. 13).

In this case, the hole 11a of the second drum member 11 is formed between the suction hole H6 and the suction hole H7. The switching member 24 is a circumferential member, and the attachment / detachment is inserted in the hollow part 13 freely. The diameter of the outer peripheral surface of the switching member 24 is slightly smaller than the diameter of the inner peripheral surface of the hollow portion 13. The small diameter part 24a which is smaller in diameter than the other part is formed in the axial center part of the switching member 24, and the recessed part 24b is formed in the outer peripheral surface side of the small diameter part 24a. The recessed part 24b is formed in the position corresponding to suction hole H4, H5, H6, H7, H8. That is, when the switching member 24 is inserted into the hollow part 13, each suction hole H4, H5, H6, H7, H8 and the recessed part 24b will communicate. Moreover, the recessed part 24b and the hole 11a of the 2nd drum member 11 communicate. That is, when the suction device 30 operates, each suction hole H4, H5, H6, H7, H8 sucks air.

Furthermore, it is also possible to form two O-rings OR15 and OR16 on the outer circumferential surface of the switching member 24 (see FIG. 14). In this case, the O ring OR15 is formed to be located between the suction hole H3 and the suction hole H4. The O-ring OR16 is formed to be located between the suction hole H8 and the suction hole H9. As a result, the gap between the outer circumferential surface of the switching member 24 and the inner circumferential surface of the hollow portion 13 is sealed so that the suction of air from the suction holes H4, H5, H6, H7, and H8 is regulated.

In addition, in this embodiment, several O-rings OR1-OR6 are formed in the outer peripheral surface of the switching member 20. As shown in FIG. In addition, the gap between the outer circumferential surface of the switching member 20 and the inner circumferential surface of the hollow portion 13 is sealed by the respective O rings OR1 to OR6. On the other hand, it is also possible to seal the clearance gap between the outer peripheral surface of the switching member 20 and the inner peripheral surface of the hollow part 13 by the elastic member 20f which coats a switching member (refer FIG. 15 and FIG. 16). The elastic member 20f is made of a rubber material or the like.

In this case, the elastic member 20f covers the entire outer circumferential surface of the switching member 20. In addition, the elastic member 20f is fixed to the outer circumferential surface of the switching member 20 by adhesion. That is, when the switching member 20 is inserted into the hollow part 13, the elastic member 20f contacts the inner peripheral surface of the hollow part 13. Thereby, the clearance gap between the outer peripheral surface of the switching member 20 and the inner peripheral surface of the hollow part 13 is sealed.

17 to 19 show a second embodiment of the present invention. 17 is a perspective view of a second drum member before inserting the switching member, FIG. 18 is a sectional side view of the second drum member with the switching member inserted, and FIG. 19 is a sectional side view of the main portion of the second drum member with the switching member inserted therein. In addition, the same code | symbol is attached | subjected to the structural part equivalent to 1st Embodiment.

The winding drum of this sheet-like member is each 1st drum member 10, 2nd drum member 11, each suction hole H1-H12, the hollow part 13, and the suction apparatus (equivalent to 1st Embodiment) 30 and a switching member 40 rotatably inserted into the hollow portion 13.

The switching member 40 is a tubular member having a circular cross section. Both ends of the switching member 40 are closed by the end surface member 40a, respectively, and the 1st communication hole 40b is formed in the switching member 40. As shown in FIG. In addition, the switching member 40 is slightly longer in the axial direction of the drum body 1 than the hollow portion 13. That is, when the switching member 40 is inserted into the hollow part 13, one end side of the switching member 40 protrudes from the hollow part 13. A plurality of holes 40c are formed at one end side of the switching member 40, and each hole 40c penetrates the switching member 40 in the radial direction. Further, the holes 40c are formed at intervals in the circumferential direction of the switching member 40 with each other, and each hole 40c is located at an axial position corresponding to the hole 11a of the second drum member 11. Formed. That is, when the switching member 40 is inserted into the hollow part 13, the position of each hole 40c of the switching member 40 and the hole 11a of the 2nd drum member 11 correspond.

Six first holes 40d and four second holes 40e are formed in the switching member 40, and each of the holes 40d and 40e penetrates the switching member 40 in the radial direction. Each first hole 40d is arranged in a line in the axial direction of the drum body 1, and each second hole 40e is arranged in a line in the axial direction of the drum body 1. Each 1st hole 40d is arrange | positioned at intervals in the circumferential direction of each 2nd hole 40e and the switching member 40. As shown in FIG. Each of the first holes 40d is aligned in the circumferential direction of one of the holes 40c and the switching member 40. Each of the second holes 40e is aligned in the circumferential direction of one of the holes 40c and one of the holes 40c and the switching member 40. Each first hole 40d is formed at a position corresponding to each suction hole H3, H4, H5, H8, H9, H10 of the second drum member 11, and each second hole 40e is each suctioned. It is formed in the position corresponding to the hole H7, H8, H9, H10, H11, H12. That is, when the switching member 40 is inserted in the hollow part 13, and the switching member 40 is arrange | positioned in the rotation direction predetermined position, each 1st hole 40d and each suction hole H3, H4, H5, H8 will be , H9, H10) coincide. Thereby, each suction hole H3, H4, H5, H8, H9, H10 and the 1st communication hole 40b of the switching member 40 communicate. In addition, when the switching member 40 is arrange | positioned in another rotation direction predetermined position, the position of each 2nd hole 40e and each suction hole H7, H8, H9, H10, H11, H12 will coincide. Thereby, each suction hole H7, H8, H9, H10, H11, H12 and the 1st communication hole 40b of the switching member 40 communicate. In addition, the first communication hole 40b communicates with the suction device 30 via the holes 40c and 11a. Each first hole 40d and each second hole 40e correspond to the second communication hole described in the claims.

An elastic member 40f such as a rubber material is formed on the outer circumferential surface of the switching member 40, and the elastic member 40f covers the entire outer circumferential surface of the switching member 40. That is, when the switching member 40 is inserted in the hollow part 13, the elastic member 41f contacts the inner peripheral surface of the hollow part 13. Thereby, the clearance gap between the outer peripheral surface of the switching member 40 and the inner peripheral surface of the hollow part 13 is sealed.

Thus, according to this embodiment, the hollow part 13 communicates with each suction hole H1-H12, The switching member 40 is rotatably formed in the hollow part 13, and the switching member ( 40 is formed along the inner circumferential surface of the hollow portion 13. Each 1st hole 40d and each 2nd hole 40e are formed in the switching member 40, and when the switching member 40 is arrange | positioned in the rotation direction predetermined position, each suction hole H3, H4, H5, H8 , H9 and H10 communicate with the suction device 30. Moreover, when the switching member 40 is arrange | positioned in another rotation direction predetermined position, each suction hole H7, H8, H9, H10, H11, H12 and the suction device 30 will communicate. For this reason, when the switching member 40 is rotated, the range of the suction hole which sucks air is switched. Therefore, the range of the adsorption hole which sucks air by a simple structure is switched. That is, it is very advantageous at the point which aims at reducing the manufacturing cost of the drum main body 1. As shown in FIG.

Moreover, when the switching member 40 is arrange | positioned at the said rotation direction predetermined position, the outer peripheral surface of the switching member 40 so that suction of air from each suction hole H3, H4, H5, H8, H9, H10 is restrict | limited. And a gap between the inner peripheral surface of the hollow portion 13 are sealed. On the other hand, when the switching member 40 is arrange | positioned at the said other rotation direction predetermined position, the suction member H7, H8, H9, H10, H11, H12 of the switching member 40 is controlled so that the suction of air from other than that may be regulated. The gap between the outer circumferential surface and the inner circumferential surface of the hollow portion 13 is sealed. Therefore, the range of the suction hole which sucks air is switched reliably.

Furthermore, since the switching member 40 is formed in the hollow part 13, the switching member 40 does not protrude outside the drum main body 1 from each suction hole H1-H12. Therefore, for example, when winding thin and smooth sheet-like member SE, such as an inner liner member, to the drum main body 1, unnecessary contact traces do not generate | occur | produce in the sheet-like member SE. That is, the tire quality can be improved.

Moreover, the passage of the air which communicates each suction hole H3, H4, H5, H8, H9, H10 and the suction device 30 is formed so that the switching member 40 may extend in the axial direction of the drum main body 1 And suction holes H3, H4, H5, H8, H9 and H10 and the first communication holes 40 formed in the first communication hole 40b and the switching member 40, which can communicate with the suction device 30. It has a some 1st hole 40d which communicates 40b). Furthermore, the passage of air which communicates each suction hole H7, H8, H9, H10, H11, H12 and the suction device 30 is formed in the 1st communication hole 40b and the switching member 40, Each suction hole H7, H8, H9, H10, H11, H12 and the some 1st communication hole 40b communicate with the some 2nd hole 40e. That is, the structure of the passage of air in the switching member 40 is simple, and it is very advantageous at the point which aims at reducing manufacturing cost.

In addition, in this embodiment, the switching member 40 is a tubular member, and the said air passage is formed by the 1st communication hole 40b and each hole 40d, 40e. On the other hand, it is also possible to use the switching member 41 which has the air | path path | pass on the outer peripheral surface (refer FIG. 20).

In this case, the hole 11a of the 2nd drum member 11 is formed between the suction hole H6 and the suction hole H7, and is arrange | positioned so that it may line up with each suction hole H1-H12. The switching member 41 is a cylindrical member, and is rotatably inserted into the hollow part 13. The diameter of the outer peripheral surface of the switching member 41 is slightly smaller than the diameter of the inner peripheral surface of the hollow portion 13. On the outer circumferential surface of the switching member 41, the first groove 41a and the second groove 41b extending in the axial direction of the switching member 41 are formed. The grooves 41a and 41b are shifted from each other in the circumferential direction of the switching member 41, and the grooves 41a and 41b communicate with each other. The first grooves 41a are formed at positions corresponding to the respective suction holes H2 to H10, and the second grooves 41b are formed at positions corresponding to the respective suction holes H3 to H11.

That is, when the switching member 41 is arrange | positioned in the rotation direction predetermined position, each suction hole H2-H10 and the suction apparatus 30 will communicate. Moreover, when the switching member 41 is arrange | positioned in another rotation direction predetermined position, each suction hole H3-H11 and the suction device 30 will communicate.

In addition, in this embodiment, the hollow part 13 which is a circular hole is formed in the 2nd drum member 11, and the switching member 40 is a tubular member of circular cross section along the inner peripheral surface of the hollow part 13. On the other hand, it is also possible to form the hollow part 50 which is a hole of a polygonal cross section in the 2nd drum member 11, and to use the switching member 51 as a tubular member of a polygonal cross section (refer FIG. 21).

In this case, the hollow part 50 is formed so that it may correspond to each suction hole H1-H12. In addition, the hollow part 50 is opened in the one end surface of the 2nd drum member 11. As shown in FIG. The hole 11a is formed in the one end side of the 2nd drum member 11, and the one end of the hole 11a is opening in the hollow part 50. As shown in FIG. The other end of the hole 11a is connected to the suction device 30 similar to the first embodiment.

The outer circumferential surface of the switching member 51 is formed along the inner circumferential surface of the hollow portion 50. Both ends of the switching member 51 are closed by the end face member 51a, respectively, and the 1st communication hole 51b is formed in the switching member 51. As shown in FIG. A plurality of holes 51c are formed at one end side of the switching member 51, and each hole 51c penetrates the switching member 51. Further, the holes 51c are formed at intervals in the circumferential direction of the switching member 51 with each other, and each hole 51c is located at an axial position corresponding to the hole 11a of the second drum member 11. Formed.

Six first holes 51d and four second holes 51e are formed in the switching member 51, and each of the holes 51d and 51e penetrates the switching member 51. Each of the holes 51d and 51e is arranged in a row in the axial direction of the drum body 1, and each of the first holes 51d is spaced apart in the circumferential direction of each of the second holes 51e and the switching member 51. It is placed. Each first hole 51d is formed at a position corresponding to each suction hole H3, H4, H5, H8, H9, H10 of the second drum member 11, and each second hole 51e is sucked at each suction. It is formed in the position corresponding to the hole H7, H8, H9, H10, H11, H12. Each first hole 51d and each second hole 51e correspond to the second communication hole described in the claims.

Thereby, when the switching member 51 is taken out from the hollow part 13 and the switching member 51 is rotated and inserted in the hollow part 50, the range of the suction hole which sucks air is switched.

22 to 26 show a third embodiment of the present invention. FIG. 22 is a side cross-sectional view of the second drum member before inserting the switching member, FIG. 23 is a cross-sectional view taken along the line AA in FIG. 22, FIG. Side sectional drawing of 2 drum members, FIG. 26: is a principal side sectional drawing of the 2nd drum member which inserted the switching member. In addition, the same code | symbol is attached | subjected to the structural part equivalent to 1st Embodiment.

The winding drum of this sheet-like member is each 1st drum member 10, 2nd drum member 11, each suction hole H1-H12, the hollow part 13, and the suction apparatus (equivalent to 1st Embodiment) 30 and a switching member 60 in which the hollow portion 13 is detachably inserted.

The switching member 60 is a tubular member having a circular cross section, and the diameter of the outer peripheral surface of the switching member 60 is slightly smaller than the diameter of the inner peripheral surface of the hollow portion 13. Both ends of the switching member 60 are closed by the end face member 60a, respectively, and the 1st communication hole 60b is formed in the switching member 60. As shown in FIG. In addition, the switching member 60 is slightly longer in the axial direction of the drum body 1 than the hollow portion 13. That is, when the switching member 60 is inserted into the hollow part 13, one end side of the switching member 60 protrudes from the hollow part 13. A hole 60c is formed in one end side of the switching member 60, and the hole 60c penetrates the switching member 60 in the radial direction. The hole 60c is formed at the position corresponding to the hole 11a of the second drum member 11. That is, when the switching member 60 is inserted into the hollow part 13, the position of the hole 60c of the switching member 60 and the hole 11a of the 2nd drum member 11 correspond.

In the outer circumferential surface of the switching member 60, fitting grooves 60d are formed at positions corresponding to the respective suction holes H1 to H12, and each fitting groove 60d extends in the circumferential direction of the switching member 60. It is. Moreover, the 2nd communication hole 60e is formed in the switching member 60 in the position corresponding to each suction hole H1-H12, respectively, and each 2nd communication hole 60e makes the switching member 60 radial direction. Penetrating through. In addition, one end of each second communication hole 60e is opened in each fitting groove 60d. That is, when the switching member 60 is inserted into the hollow part 13, each 2nd communication hole 60e can communicate with each suction hole H1-H12 and the 1st communication hole 60b.

The ring-shaped member 60f is rotatably fitted in each fitting groove 60d, respectively. When the ring-shaped member 60f is disposed at the rotational direction predetermined position, the second communication hole 60e is opened. In addition, when the ring-shaped member 60f is disposed at another rotational direction predetermined position, the second communication hole 60e is closed. For example, when opening the 2nd communication hole 60e corresponding to each suction hole H3, H4, H5, H8, H9, H10, and inserting the switching member 60 in the hollow part 13, , Each suction hole H3, H4, H5, H8, H9, H10 and the first communication hole 60b of the switching member 60 communicate with each other. Moreover, the 1st communication hole 60b is communicating with the suction device 30 through each hole 60c, 11a.

A plurality of O rings OR are mounted on the outer circumferential surface of the switching member 60, and each O ring OR is made of a known rubber material. Each O-ring OR is formed between each suction hole H1 to H12, the other end side of the switching member, the suction hole H12 and the hole 60c, and both sides of the hole 60c, than the suction hole H1. It is. Each O ring OR is disposed in a plurality of grooves 60g formed on the outer circumferential surface of the switching member 60, and each groove 60g extends in the circumferential direction of the switching member 60. The outer circumferential surface of each O ring OR projects slightly in the radial direction from the outer circumferential surface of the switching member 60. When the switching member 60 is inserted into the hollow portion 13, each of the O-rings ORs respectively forms a gap between the outer peripheral surface of the switching member 60 and the inner peripheral surface of the hollow portion 13 in the axial direction of the drum body 1. Partition. Thereby, when sucking air from each suction hole H3, H4, H5, H8, H9, H10 by operation | movement of the suction device 30, for example, each suction hole H3, H4, H5, H8, H9 The gap between the outer circumferential surface of the switching member 60 and the inner circumferential surface of the hollow portion 13 is sealed so that suction of air from other than H10 is regulated.

Thus, according to this embodiment, the hollow part 13 communicates with each suction hole H1-H12, and the switching member 60 formed in the hollow part 13 along the inner peripheral surface is removable freely. Formed. In addition, the switching member 60 includes a plurality of agents for communicating the first communication hole 60b that can communicate with the suction device 30, and the suction holes H1 to H12 and the first communication hole 60b, respectively. It has a 2 communicating hole 60e and the some ring-shaped member 60f for opening and closing each 2nd communicating hole 60e, respectively. For this reason, when each 2nd communication hole 60e is opened and closed by each ring-shaped member 60f, the range of the suction hole which sucks air will switch. Therefore, since the range of the adsorption hole which attracts air by a simple structure is switched, it is very advantageous at the point which aims at reducing the manufacturing cost of the drum main body 1. As shown in FIG.

Moreover, each O ring OR is formed between the outer peripheral surface of the switching member 60, and the inner peripheral surface of the hollow part 13. As shown in FIG. For this reason, when sucking air from each suction hole H3, H4, H5, H8, H9, H10 by the suction device 30, for example, each suction hole H3, H4, H5, H8, H9, The gap between the outer circumferential surface of the switching member 60 and the inner circumferential surface of the hollow portion 13 is sealed so that suction of air from other than H10) is regulated. Therefore, the range of the suction hole which sucks air is switched reliably.

Furthermore, since the switching member 60 is formed in the hollow part 13, the switching member 60 does not protrude outside the drum main body 1 from each suction hole H1-H12. Therefore, for example, when winding thin and smooth sheet-like members SE, such as an inner liner member, to the drum main body 1, unnecessary contact traces do not arise in the sheet-like member SE. That is, the tire quality can be improved.

Moreover, the some ring-shaped member 60f is formed in the outer peripheral surface of the switching member 60, and each ring-shaped member 60f is rotatably fitted to the outer peripheral surface of the switching member 60. As shown in FIG. When the ring-shaped member 60f is disposed at the rotational direction predetermined position, the second communication hole 60e is opened. When the ring-shaped member 60f is disposed at the other rotational direction predetermined position, the second communication hole 60e is opened. It is closed. For this reason, opening and closing of each 2nd communication hole 60e can be switched easily.

In addition, the gap between the outer circumferential surface of the switching member 60 and the inner circumferential surface of the hollow portion 13 is sealed by each O ring OR mounted to the switching member 60. For this reason, the clearance gap between the outer peripheral surface of the switching member 60 and the inner peripheral surface of the hollow part 13 is reliably sealed by a simple structure.

In addition, in this embodiment, several O-rings OR are formed in the outer peripheral surface of the switching member 60, and each O-ring OR of the outer peripheral surface of the switching member 60 and the inner peripheral surface of the hollow part 13 is carried out. The gap is sealed. In contrast, the switching member 60 is covered with an elastic member 60h such as a rubber material, and the gap between the outer peripheral surface of the switching member 60 and the inner peripheral surface of the hollow 13 is sealed by the elastic member 60h. Possible (see FIG. 27).

In this case, the elastic member 60h covers other fitting grooves 60d on the outer circumferential surface of the switching member 60 and is fixed to the outer circumferential surface of the switching member 60 by adhesion. That is, when the switching member 60 is inserted into the hollow part 13, the elastic member 60h contacts the inner peripheral surface of the hollow part 13. Thereby, the clearance gap between the outer peripheral surface of the switching member 60 and the inner peripheral surface of the hollow part 13 is sealed.

In addition, in this embodiment, the some ring-shaped member 60f is formed in the outer peripheral surface of the switching member 60, and each 2nd communication hole 60e is opened and closed by rotating each ring-shaped member 60f. On the other hand, while each female thread 60i is formed in each 2nd communication hole 60e, the screw | thread 61 which can be screwed together is formed in each female thread 60i, respectively, It is also possible to open and close the second communication hole 60e (see FIG. 28). In this case, when the washer 62 which consists of an elastic member is formed in the seat surface of the bis | s 61, each 2nd communication hole 60e is surely closed. In addition, when the elastic member 60h covering the switching member 60 is formed on the seat surface of the vis 61, each second communication hole 60e is surely closed without forming the washer 62. Furthermore, it is also possible to open and close each second communication hole 60e by attaching and detaching a rubber stopper instead of the bis 61.

In addition, in this embodiment, the outer peripheral surface of the drum main body 1 is formed of the some 1st drum member 10 and the 2nd drum member 11. On the other hand, it is also possible to form the 2nd drum member 11 in a part of the circumferential direction of the drum main body 2 formed in hollow shape (refer FIG. 29). It is also possible to integrally form the drum body 2 and the second drum member 11.

Preferred embodiments described herein are exemplary and not limiting. The scope of the invention is indicated by the attached claims, and all modifications falling within the meaning of these claims are included in the present invention.

Claims (20)

delete delete delete delete A drum body capable of winding a sheet member on an outer circumferential surface thereof, A plurality of suction holes formed at a predetermined position in the circumferential direction of the outer circumferential surface of the drum body, and arranged in the axial direction of the drum body; Suction means for sucking air from each suction hole such that each suction hole sucks the sheet-shaped member when the sheet-shaped member is wound around the outer circumferential surface of the drum body; A hollow portion formed in the drum body so as to extend in the axial direction of the drum body along each suction hole, and communicating with each suction hole, respectively; A switching member which is formed to extend along the hollow portion, the outer circumferential surface is formed along the inner circumferential surface of the hollow portion, and is rotatably formed in the hollow portion, It is formed in the switching member, when the switching member is disposed at a predetermined position in the rotational direction, the suction hole and the suction means of the predetermined range in the axial direction of the drum body communicate with each other. A winding drum having a sheet-like member, comprising an air passage for communicating a suction hole and a suction means. The method of claim 5, It is formed between the outer circumferential surface of the switching member and the inner circumferential surface of the hollow portion, and when the switching member is disposed at the predetermined position in the rotational direction, the outer circumferential surface of the switching member and the hollow portion are restricted so as to restrict the suction of air from the suction hole outside the predetermined range. The gap between the outer circumferential surface of the switching member and the inner circumferential surface of the hollow portion is regulated so as to regulate the suction of air from the suction hole outside the other predetermined range when the gap between the inner circumferential surface is sealed and the switching member is disposed at the predetermined position in the other rotation direction. The winding drum of the sheet-like member further provided with the sealing member to seal. The method of claim 5, The air passage is formed in the switching member so as to extend in the axial direction of the drum body, and is formed in the switching member and the first communication hole communicated with the suction means, and the switching member is disposed in the rotational direction predetermined position in the predetermined range. A sheet shape characterized by having a second communication hole for communicating the suction hole and the first communication hole and for communicating the suction hole and the first communication hole in the other predetermined range when the switching member is disposed at the predetermined position in the other rotation direction. Winding drum in the absence. The method of claim 5, The air passage is formed on the outer circumferential surface of the switching member, and when the switching member is disposed at the predetermined position in the rotational direction, the suction hole and the suction means in the predetermined range communicate with each other. A winding drum having a sheet-like member, characterized by having a recess for communicating suction holes in a predetermined range with suction means. The method of claim 5, The switching member is a winding drum of a sheet-like member, wherein the detachable member is freely mounted in the hollow part. delete The method of claim 5, The sealing member is a plurality of ring-shaped elastic members mounted on the outer circumferential surface of the switching member so as to partition the gap between the outer circumferential surface of the switching member and the inner circumferential surface of the hollow portion in the axial direction of the drum body, respectively. delete The method of claim 5, The sealing member is an elastic member which covers the outer peripheral surface of the switching member and is in contact with the inner peripheral surface of the hollow portion. delete A drum body capable of winding a sheet member on an outer circumferential surface thereof, A plurality of suction holes formed at a predetermined position in the circumferential direction of the outer circumferential surface of the drum body, and arranged in the axial direction of the drum body; Suction means for sucking air from each suction hole such that each suction hole sucks the sheet-shaped member when the sheet-shaped member is wound around the outer circumferential surface of the drum body; A hollow portion formed in the drum body so as to extend in the axial direction of the drum body along each suction hole, and communicating with each suction hole, respectively; A switching member formed so as to extend along the hollow portion, the outer circumferential surface being formed along the inner circumferential surface of the hollow portion, and freely mounted in the hollow portion; A first communication hole formed in the switching member so as to extend in the axial direction of the drum body, the first communication hole communicating with the suction means; A plurality of second communication holes formed in the switching member for communicating each suction hole and the first communication hole, respectively, It is formed in the switching member, and is provided with the several opening / closing member for opening and closing each 2nd communication hole, respectively, The opening / closing member is rotatably fitted to the outer circumferential surface of the switching member and is a ring-shaped member that opens the second communication hole when disposed at a predetermined position in the rotational direction and closes the second communication hole when disposed at a predetermined position in another rotational direction. A winding drum of a sheet-shaped member, characterized in that. delete delete delete The method of claim 5, The outer peripheral surface of the drum body has a plurality of drum members arranged at intervals in the circumferential direction of the drum body, At least one drum member of each drum member has each suction hole and a hollow part, The winding drum of the sheet-like member characterized by the above-mentioned. delete

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