Rotating device

Abstract

The invention relates to a rotating device, which does not need to extend a rotating disc with cables laid on the peripheral side surface in the direction of a rotating shaft, so that the number of laid cables is increased. A rotating device (1) is characterized by being provided with: a turntable (11) which is rotatable in the circumferential direction and to which a first cable (31) and a second cable (32) are connected at different positions on the circumferential side surface (111); and cable guide devices (12, 13) that are disposed at positions that do not overlap in the direction of the rotation axis of the turntable (11), that accommodate at least a part of the first cable (31) or the second cable (32) in a plurality of links (121) that are connected so as to be bendable, and that have one end fixed to the peripheral surface (111) and the other end fixed to a position that is independent of the rotation of the turntable (11). The cable guide devices (12, 13) are respectively wound around the circumferential side surface (111) or rewound in accordance with the circumferential rotation of the turntable (11).

Description

Technical Field

[0001] This application claims priority based on Japanese Patent Application No. 2023-199307 filed on November 24, 2023. The entire content of the Japanese application is incorporated herein by reference.

[0002] The present invention relates to a rotating device. Background Art

[0003] A technique is known in which a cable support (registered trademark) formed by connecting a plurality of links is wound around a part (half circumference) of the circumferential surface of a turntable in order to arrange cables laid on the circumferential surface of the turntable (for example, Patent Document 1).

[0004] Patent Document 1: Japanese Unexamined Patent Application Publication No. 2004-50780

[0005] When increasing the number of cables laid on the circumferential surface of the turntable, it is necessary to increase the number of cables accommodated in the cable support wound around the circumferential surface of the turntable, increase the number of cable supports, or increase the size of the cable support. However, since there is a limit to the number of cables that can be accommodated in one cable support, it is sometimes necessary to increase the number of cable supports or increase the size of the cable support. In such a case, it is possible to respond by increasing the number of cable supports wound around the circumferential surface of the turntable in the rotational axis direction of the turntable or increasing its size, but in order to ensure space for arranging a plurality of cable supports, it is necessary to extend the turntable in the rotational axis direction. Summary of the Invention

[0006] An object of the present invention is to increase the number of cables laid without extending the turntable on which the cables are laid in the rotational axis direction.

[0007] The present invention completed based on the above object is a rotating device, characterized by comprising: a turntable connected with a plurality of cables at different positions on the circumferential surface and capable of rotating in the circumferential direction; and a plurality of cable guiding devices arranged at positions not overlapping in the rotational axis direction of the turntable, accommodating at least a part of the cables in a plurality of links that can be bendably connected, having one end fixed on the circumferential surface and the other end fixed at a position independent of the rotation of the turntable, and corresponding to the circumferential rotation of the turntable, and the plurality of cable guiding devices are respectively wound around or unwound from the circumferential surface.

[0008] Herein, the plurality of cable guiding devices may be arranged at positions that do not interfere with each other when wound around the circumferential surface and when unwound.

[0009] Further, it is also possible that, among the plurality of cable guiding devices, the length in the link connection direction of the cable guiding device in which the other end is fixed at a lower position in the vertical direction in the turntable is longer than that of the cable guiding device in which the other end is fixed at an upper position in the vertical direction in the turntable.

[0010] Further, it is also possible that, among the plurality of cable guiding devices, when one end is arranged in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable, the other end is not fixed in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable, and when one end is arranged in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable, the other end is not fixed in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable.

[0011] Further, it is also possible that, as the plurality of cable guiding devices, a first cable guiding device and a second cable guiding device are arranged, and one end of the first cable guiding device and one end of the second cable guiding device are arranged at positions symmetrical with respect to the rotation center of the turntable.

[0012] Further, a locking portion may be further provided, which is arranged at a position independent of the rotation of the turntable and locks the plurality of cable guiding devices that are loose toward the outside in the radial direction of the turntable respectively.

[0013] Further, the other end may be fixed to the locking portion.

[0014] Effect of the Invention

[0015] According to the present invention, it is possible to increase the number of cables laid without extending the turntable on which the cables are laid on the circumferential side in the rotation axis direction. Brief Description of the Drawings

[0016] Figure 1 is a diagram showing an example of the external structure of the rotating device according to the first embodiment of the present invention.

[0017] Figure 2 is a diagram showing an example of the external structure of the rotating device according to the first embodiment of the present invention.

[0018] Figure 3 (A) to (C) in it are diagrams showing an example of the external structure of the link constituting the cable guiding device.

[0019] Figure 4 (A) and (B) in it are partial diagrams showing a modified example of the rotating device according to the first embodiment.

[0020] Figure 5This is a diagram showing an example of the external structure of the rotating device according to the second embodiment of the present invention.

[0021] Figure 6 This is a diagram showing an example of the external structure of the rotating device according to the second embodiment of the present invention.

[0022] Explanation of symbols

[0023] 1, 2 - Rotating device, 11, 41 - Turntable, 12, 13, 22, 23, 24, 25, 42, 43 - Cable guiding device, 14, 15, 44, 45 - First locking portion, 16, 17, 46, 47 - Second locking portion, 31, 61 - First cable, 32, 62 - Second cable, 121, 131, 421, 431 - Link, 122, 123, 132, 133, 422, 423, 432, 433 - Fixing portion, 211 - Frame portion, 212, 213 - Connecting hole, 214 - Space. Detailed implementation mode

[0024] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0025] <First Embodiment>

[0026] (Structure of the rotating device)

[0027] Figure 1 and Figure 2 This is a diagram showing an example of the external structure of the rotating device 1 according to the first embodiment of the present invention. In Figure 1 the state where the cable guiding device 12 and the cable guiding device 13 are wound around the turntable 11 the most is shown, and in Figure 2 the state where the cable guiding device 12 and the cable guiding device 13 are rewound the most is shown.

[0028] Figure 1 and Figure 2 the rotating device 1 shown is configured to include a turntable 11, a cable guiding device 12 as the first cable guiding device, a cable guiding device 13 as the second cable guiding device, a first locking portion 14 and a first locking portion 15, and a second locking portion 16 and a second locking portion 17.

[0029] The turntable 11 is a turntable having a circumferential side surface 111 and capable of rotating in the circumferential direction. The turntable 11 can rotate and reverse in the circumferential direction by, for example, 180 degrees or less. On the circumferential side surface 111 of the turntable 11, the first cable 31 and the second cable 32 shown by the dotted line are respectively connected to different positions.

[0030] The cable guiding device 12 is a component that guides the first cable 31 by accommodating at least a part of the first cable 31 in a plurality of link members 121 that can be bendably connected. For example, it is composed of a so-called cable bracket that can protect and guide a movable cable. One end of the cable guiding device 12 is fixed to the circumferential side surface 111 of the turntable 11, and the other end is fixed to a surface 141 near the left end in the left-right direction of the first locking portion 14 that is in a position independent of the rotation of the turntable 11. The cable guiding device 12 has a fixing portion 122 for fixing one end to the circumferential side surface 111 of the turntable 11, and a fixing portion 123 for fixing the other end to the surface 141 of the first locking portion 14. In addition, the method of fixing one end of the cable guiding device 12 to the circumferential side surface 111 of the turntable 11 through the fixing portion 122 and the method of fixing the other end of the cable guiding device 12 to the surface 141 of the first locking portion 14 through the fixing portion 123 are not particularly limited. For example, they can be fixed by small screws, welding, etc.

[0031] The cable guiding device 12 bends corresponding to the circumferential rotation of the turntable 11 and is wound around or rewound from the circumferential side surface 111 of the turntable 11. As described above, Figure 1 It shows the state where the most winding occurs on the circumferential side surface 111 of the turntable 11 in the cable guiding device 12. Therefore, if the turntable 11 rotates to the right in the circumferential direction (clockwise rotation) from the Figure 1 shown state, the cable guiding device 12 bends corresponding to this rotation, is rewound while separating from the circumferential side surface 111, and finally becomes the Figure 2 shown state. And if the turntable 11 reverses to the left in the circumferential direction (counterclockwise rotation) from the Figure 2 shown state, the cable guiding device 12 finally becomes the Figure 1 shown state.

[0032] The cable guiding device 12 has a part wound around the circumferential side surface 111 of the turntable 11 and a part in contact with the surface 141 of the first locking portion 14. Moreover, in the cable guiding device 12, in order to have a margin in the length in the connecting direction of the link members 121, it has a part bent in a manner of expanding toward the right in the circumferential direction of the turntable 11. Specifically, for example, compared with the case where this "bent part in an expanding manner" is not formed (that is, no margin is held), the overall length of the cable guiding device 12 has a margin in a manner of becoming about 5% to 20% longer.

[0033] During reverse rotation, the cable guiding device 12 is likely to become slack toward the lower side in the up-down direction due to its own weight. If the cable guiding device 12 becomes too slack toward the lower side, there may be interference with other components. Therefore, the length of the cable guiding device 12 in the connecting direction of the link members 121 is designed to be a length that will not interfere with other components even if it becomes slack toward the lower side due to its own weight.

[0034] The cable guiding device 13 is a component that guides the second cable 32 by accommodating at least a part of the second cable 32 in a plurality of link members 131 that can be bent and connected. For example, it is composed of a so-called cable bracket that can protect and guide a movable cable. One end of the cable guiding device 13 is fixed to the circumferential side surface 111 of the turntable 11, and the other end is fixed to a surface 151 near the right end in the left-right direction of the first locking portion 15 that is independent of the rotation of the turntable 11. The cable guiding device 13 has: a fixing portion 132 for fixing one end to the circumferential side surface 111 of the turntable 11; and a fixing portion 133 for fixing the other end to the surface 151 of the first locking portion 15. In addition, the method of fixing one end of the cable guiding device 13 to the circumferential side surface 111 of the turntable 11 through the fixing portion 132 and the method of fixing the other end of the cable guiding device 13 to the surface 151 of the first locking portion 15 through the fixing portion 133 are not particularly limited. For example, they can be fixed by small screws, welding, etc.

[0035] The cable guiding device 13 bends corresponding to the circumferential rotation of the turntable 11 and is wound around the circumferential side surface 111 of the turntable 11 or rewound. As described above, Figure 1 It shows the state where the cable guiding device 13 is wound around the circumferential side surface 111 of the turntable 11 the most. Therefore, if the turntable 11 rotates to the right in the circumferential direction (clockwise rotation) from the Figure 1 shown state, the cable guiding device 13 bends corresponding to its rotation, separates from the circumferential side surface 111 and is rewound, and finally becomes the Figure 2 shown state. And if the turntable 11 reverses to the left in the circumferential direction (counterclockwise rotation) from the Figure 2 shown state, the cable guiding device 13 finally becomes the Figure 1 shown state.

[0036] The cable guiding device 13 has a part wound around the circumferential side surface 111 of the turntable 11 and a part in contact with the surface 151 of the first locking portion 15. Moreover, in the cable guiding device 13, in order to have a margin in the length in the connecting direction of the link members 131, it has a part bent in a manner of expanding toward the right in the circumference of the turntable 11. Specifically, for example, compared with the case where this "bent part in an expanding manner" is not formed (that is, when there is no margin), the overall length of the cable guiding device 13 has a margin in such a way that it becomes about 5% to 20% longer.

[0037] When the cable guiding device 13 is reversed, it is likely to become slack towards the lower side in the up and down direction due to its own weight. If the cable guiding device 13 becomes too slack towards the lower side, there is a possibility of interference with other components. Therefore, the length of the link 131 of the cable guiding device 13 in the connecting direction is designed to be a length that will not interfere with other components even if it becomes slack towards the lower side due to its own weight.

[0038] Figure 1 and Figure 2 The lengths of the connecting members of the cable guiding devices 12 and 13 shown in the connecting direction are the same. And, one end of each of the cable guiding devices 12 and 13 is fixed at different positions on the circumferential side surface 111 of the turntable 11. That is, the fixing portion 122 of the cable guiding device 12 and the fixing portion 132 of the cable guiding device 13 are respectively fixed at different positions on the circumferential side surface 111 of the turntable 11. And, in Figure 1 and Figure 2 In the example of, the fixing portion 122 of the cable guiding device 12 and the fixing portion 132 of the cable guiding device 13 are arranged at positions symmetric about the rotation center of the turntable 11.

[0039] And, the cable guiding devices 12 and 13 are arranged at positions where they do not interfere with each other when wound around the circumferential side surface 111 of the turntable 11 or when rewound. Moreover, the cable guiding devices 12 and 13 are respectively arranged at positions that do not overlap in the rotation axis direction of the turntable 11 (i.e., on the same circumference). That is, the cable guiding devices 12 and 13 are not arranged side by side in the rotation axis direction of the turntable 11.

[0040] And, in each of the cable guiding devices 12 and 13, the positions on the circumferential side surface 111 where one end is fixed and the positions where the other end is fixed on the surface 141 of the first locking portion 14 or the surface 151 of the first locking portion 15 are not limited to Figure 1 and Figure 2 In the example shown. However, when one end of each is sometimes arranged in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11, the other end of each is not fixed in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11. That is, in the cable guiding device 12, for example, when the fixing portion 122 is sometimes arranged in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11, the fixing portion 123 is not fixed in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11. Similarly, in the cable guiding device 13 as well, when the fixing portion 132 is sometimes arranged in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11, the fixing portion 133 is not fixed in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11.

[0041] Further, in the cable guide device 12 and the cable guide device 13, when one end of each is sometimes arranged in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11, the other end of each is not fixed in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11. That is, in the cable guide device 12, for example, when the fixing portion 122 is sometimes arranged in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11, the fixing portion 123 is not fixed in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11. Similarly, in the cable guide device 13, when the fixing portion 132 is sometimes arranged in the direction from 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11, the fixing portion 133 is not fixed in the direction from 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11.

[0042] The first locking portion 14 is an arc-shaped member fixed at a position outside the radial direction of the turntable 11 and independent of the rotation of the turntable 11. When the cable guide device 12 is rewound and separated from the turntable 11, the first locking portion 14 locks the slack of the cable guide device 12 toward the outside in the radial direction of the turntable 11.

[0043] The first locking portion 15 is an arc-shaped member fixed at a position outside the radial direction of the turntable 11 and independent of the rotation of the turntable 11. When the cable guide device 13 is rewound and separated from the turntable 11, the first locking portion 15 locks the slack of the cable guide device 13 toward the outside in the radial direction of the turntable 11.

[0044] The second locking portion 16 is an arc-shaped member fixed at a position outside the radial direction of the turntable 11 and independent of the rotation of the turntable 11. The second locking portion 16 is arranged closer to the inside in the radial direction of the turntable 11 than the first locking portion 14. The second locking portion 16 locks the slack of the cable guide device 12 wound around the turntable 11 toward the outside in the radial direction of the turntable 11.

[0045] The second locking portion 17 is an arc-shaped member arranged at a position outside the radial direction of the turntable 11 and independent of the rotation of the turntable 11. The second locking portion 17 is arranged closer to the inside in the radial direction of the turntable 11 than the first locking portion 15. The second locking portion 17 locks the slack of the cable guide device 13 wound around the turntable 11 toward the outside in the radial direction of the turntable 11.

[0046] (Structure of the link)

[0047] Figure 3 Among (A) to (C) is a view showing an example of the external structure of the link 121 constituting the cable guide device 12. Figure 3 Among them, (A) is a front view of the link 121.Figure 3 In (B), it is a side view of the link 121. Figure 3 In (C), it is a top view of the link 121. Additionally, Figure 3 The perspective view shown in (A) is a view showing the state when observing the link 121 from the direction of the arrow 503 shown in Figure 3 (B) and (C). And, Figure 3 The side view shown in (B) is a view showing the state when observing the link 121 from the direction of the arrow 502 shown in Figure 3 (A) and (C). And, Figure 3 The top view shown in (C) is a view showing the state when observing the link 121 from the direction of the arrow 501 shown in Figure 3 (A) and (B).

[0048] As Figure 3 shown in (A) to (C), the link 121 is composed of a frame portion 211 having connection holes 212 and 213. The frame portion 211 is a component that forms a space 214 capable of accommodating at least a part of the first cable 31 shown by the dashed line, and guides the first cable 31. The connection holes 212 and 213 are holes provided at two places on the frame portion 211. By aligning the connection hole 212 of one link 121 with the connection hole 213 of another link 121 and rotatably fixing them by riveting or the like, a bendable cable guiding device 12 formed by connecting a plurality of links 121 can be formed.

[0049] Additionally, in Figure 3 (A) to (C) and the above Figure 1 , Figure 2 each, only one first cable 31 is schematically drawn, but the first cable 31 can also be multiple. And, the number of the first cables 31 is not particularly limited as long as it is the number that can be accommodated in the space 214 formed by the frame portion 211 of the link 121. When there are multiple first cables 31, multiple cables with the same diameter can be gathered as the first cable 31, or multiple cables with different diameter sizes can be gathered as the first cable 31.

[0050] And, the link 131 constituting the cable guiding device 13 shown in the above Figure 1 and Figure 2 also has the same structure as the link 121 shown in Figure 3 (A) to (C). That is, the link 131 is composed of a frame portion, connection holes that are the same as the frame portion 211, connection holes 212, and connection holes 213 shown in Figure 3 (A) to (C). And, Figure 1 and Figure 2The second cable 32 shown respectively is also schematically drawn as one, but there may be multiple second cables 32. Moreover, the number of the second cables 32 is not particularly limited as long as it can be accommodated in the space formed by the frame portion of the link 131. When there are multiple second cables 32, multiple cables of the same diameter can be gathered as the second cable 32, or multiple cables of different diameter sizes can be gathered as the second cable 32.

[0051] (Modification example)

[0052] Figure 4 (A) and (B) in the figure are partial views showing a modification example of the rotating device 1 according to the first embodiment. In Figure 4 (A) and (B) in the figure, as a modification example, a specific example is shown in which two of each of the first cable guiding device and the second cable guiding device are arranged in the rotation axis direction of the turntable 11. And in Figure 4 (A) and (B) in the figure, as a specific application example, the rotating device 1 is used as a part of the rotating die of a molding machine composed of a movable die, a fixed die, and a rotating die.

[0053] Depending on the length of the turntable 11 of the rotating device 1 in the rotation axis direction and the size of the cable guiding device, it may be possible to arrange multiple cable guiding devices wound around the circumferential side surface 111 of the turntable 11 in the rotation axis direction. For example, in Figure 4 (A) in the figure shows an example in which two first cable guiding devices (cable guiding devices 22 and 23) are arranged in the rotation axis direction of the turntable 11. Figure 4 (A) in the figure shows a state in which two first cable guiding devices (cable guiding device 22 and cable guiding device 23) are wound the most on the turntable 11. And in Figure 4 (B) in the figure shows an example in which two second cable guiding devices (cable guiding devices 24 and 25) are arranged in the rotation axis direction of the turntable 11. Figure 4 (B) in the figure shows a state in which two second cable guiding devices (cable guiding device 24 and cable guiding device 25) are wound the most on the turntable 11.

[0054] Figure 4 (A) and (B) in the figure show that the rotating device 1 is configured to include a turntable 11 having a circumferential side surface 111 and capable of rotating in the circumferential direction, two first cable guiding devices (cable guiding devices 22 and 23), two second cable guiding devices (cable guiding devices 24 and 25), a first locking portion 14 and a first locking portion 15, a second locking portion 16 and a second locking portion 17, and a mounting plate 18 for connecting a movable die or a fixed die (not shown) to the rotating die. Additionally, in Figure 4In the rotating device 1 shown in (A) and (B), the turntable 11, the first locking portions 14 and 15, and the second locking portions 16 and 17 are the same as those shown in Figure 1 and Figure 2 , so the description thereof is omitted. And, Figure 4 the first locking portion 14 shown in (A) in Figure 4 is omitted from the drawing in (B) in

[0055] Each of the two first cable guiding devices (cable guiding devices 22 and 23) is a member that guides the first cable 31 by respectively accommodating at least a part of the first cable 31 (refer to Figure 1 and Figure 2 ), and is constituted by, for example, a so-called cable bracket that can protect and guide a movable cable. One end of each of the two first cable guiding devices (cable guiding devices 22 and 23) is respectively fixed to the circumferential side surface 111 of the turntable 11, and the other end is fixed to the surface 141 near the left end in the left-right direction of the first locking portion 14. Among them, the cable guiding device 22 has: a fixing portion 222 for fixing one end to the circumferential side surface 111 of the turntable 11; and a fixing portion 223 for fixing the other end to the surface 141 of the first locking portion 14. And, the cable guiding device 23 has: a fixing portion 232 for fixing one end to the circumferential side surface 111 of the turntable 11; and a fixing portion 233 for fixing the other end to the surface 141 of the first locking portion 14.

[0056] The two first cable guiding devices (cable guiding devices 22 and 23) are wound around or unwound from the circumferential side surface 111 of the turntable 11 by bending corresponding to the circumferential rotation of the turntable 11. As described above, Figure 4 (A) shows the state where the two first cable guiding devices (cable guiding devices 22 and 23) are wound around the circumferential side surface 111 of the turntable 11 the most. Therefore, if the turntable 11 rotates to the right in the circumferential direction (clockwise rotation) from the state shown in Figure 4 (A), the two first cable guiding devices (cable guiding devices 22 and 23) bend corresponding to the rotation thereof and are unwound while separating from the circumferential side surface 111.

[0057] Each of the two second cable guiding devices (cable guiding devices 24 and 25) is a member that guides the second cable 32 by respectively accommodating at least a part of the second cable 32 (refer to Figure 1 and Figure 2A component that guides at least a part of the second cable 32 respectively, for example, is constituted by a so-called cable bracket that can protect and guide a movable cable. One end of each of the two second cable guiding devices (cable guiding device 24 and cable guiding device 25) is fixed to the circumferential side surface 111 of the turntable 11, and the other end is fixed to the surface 151 near the right end in the left-right direction of the first locking portion 15. Among them, the cable guiding device 24 has: a fixing portion 242 for fixing one end to the circumferential side surface 111 of the turntable 11; and a fixing portion 243 for fixing the other end to the surface 151 of the first locking portion 15. And the cable guiding device 25 has: a fixing portion 252 for fixing one end to the circumferential side surface 111 of the turntable 11; and a fixing portion 253 for fixing the other end to the surface 151 of the first locking portion 15.

[0058] The two second cable guiding devices (cable guiding device 24 and cable guiding device 25) are wound around the circumferential side surface 111 of the turntable 11 or rewound by bending corresponding to the rotation in the circumferential direction of the turntable 11. As described above, Figure 4 In (B), it shows the state where the two second cable guiding devices (cable guiding device 24 and cable guiding device 25) are wound around the circumferential side surface 111 of the turntable 11 the most. Therefore, if the turntable 11 rotates to the right in the circumferential direction (clockwise rotation) from the state shown in Figure 4 (B), the two second cable guiding devices (cable guiding device 24 and cable guiding device 25) bend corresponding to the rotation, and are rewound while separating from the circumferential side surface 111.

[0059] In summary, the rotating device 1 according to the first embodiment of the present invention can adopt various embodiments as long as the following structure is adopted.

[0060] That is, the rotating device 1 according to the first embodiment includes: a turntable 11, to which a plurality of cables (for example, the first cable 31, the second cable 32) are connected at different positions on the circumferential side surface 111, and which can rotate in the circumferential direction; a plurality of cable guiding devices (for example, Figure 1 the cable guiding device 12 and the cable guiding device 13 of Figure 4 the cable guiding device 22 and the cable guiding device 24, and the cable guiding device 23 and the cable guiding device 25), which are arranged at positions that do not overlap in the rotation axis direction of the turntable 11, accommodate at least a part of the cable in a plurality of linkages (for example, link 121 and link 131) that can be bent and connected, fix one end to the circumferential side surface 111 of the turntable 11, and fix the other end to a position independent of the rotation of the turntable 11 (for example, the surface 141 of the first locking portion 14, the surface 151 of the first locking portion 15), and the plurality of cable guiding devices are wound around the circumferential side surface 111 of the turntable 11 or rewound corresponding to the rotation in the circumferential direction of the turntable 11.

[0061] Accordingly, a plurality of cable guiding devices disposed at positions on the circumferential side surface 111 of the turntable 11 that do not overlap in the axial direction of the rotating shaft are respectively wound around or rewound around the circumferential side surface 111 of the turntable 11 corresponding to the circumferential rotation of the turntable 11. As a result, without extending the turntable 11 in the axial direction of the rotating shaft (i.e., without increasing the thickness of the turntable 11), the number of cables that can be laid can be increased.

[0062] Here, the plurality of cable guiding devices may be disposed at positions where they do not interfere with each other when wound around the circumferential side surface 111 and when rewound.

[0063] Accordingly, since the plurality of cable guiding devices are disposed at positions where they do not interfere with each other, the turntable 11 can rotate smoothly.

[0064] Also, it may be that, among the plurality of cable guiding devices, when one end is sometimes disposed in the direction of 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11, the other end is not fixed in the direction of 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11, and when one end is sometimes disposed in the direction of 8 o'clock to 10 o'clock with respect to the center in the radial direction of the turntable 11, the other end is not fixed in the direction of 2 o'clock to 4 o'clock with respect to the center in the radial direction of the turntable 11.

[0065] Accordingly, the straight lines connecting the two end portions of each of the plurality of cable guiding devices do not become horizontal or nearly horizontal, so that, for example, the amount of slack of the cable guiding device downward in the up-and-down direction due to its own weight is suppressed. As a result, when the turntable 11 rotates, the risk that the cable guiding device that sags downward due to its own weight interferes with other components and is damaged is reduced.

[0066] Also, it may be that a first cable guiding device (for example, the cable guiding device 12) and a second cable guiding device (for example, the cable guiding device 13) are disposed as the plurality of cable guiding devices, and one end of the first cable guiding device and one end of the second cable guiding device are disposed at positions symmetric with respect to the rotation center of the turntable 11.

[0067] Accordingly, one end of each of the first cable guiding device and the second cable guiding device wound around the circumferential side surface 111 of the turntable 11 is disposed at a position symmetric about the rotation center of the turntable 11. As a result, one end of each of the first cable guiding device and the second cable guiding device is disposed in exactly opposite or substantially opposite directions, so that it is difficult for the center of gravity to deviate when the turntable 11 rotates, and smooth rotation can be achieved. Also, for example, if connection ports for piping through which a fluid flows (such as temperature control piping, etc.) are disposed near one end of each of the first cable guiding device and the second cable guiding device, then the first cable guiding device and the second cable guiding device can protect most of the piping while guiding it. At this time, since the connection ports can be disposed at exactly opposite or substantially opposite positions on the turntable 11, a well-balanced configuration can be achieved with respect to the turntable 11 whether one connection port is used as an input port and the other as an output port, or both connection ports are used as input ports and output ports.

[0068] Also, a locking portion (for example, first locking portions 14 and 15, second locking portions 16 and 17) may be provided, which is disposed at a position independent of the rotation of the turntable 11 and locks the plurality of cable guiding devices that are slack toward the outside in the radial direction of the turntable 11, respectively.

[0069] Accordingly, the plurality of cable guiding devices that are slack toward the outside in the radial direction of the turntable 11 are locked to control the trajectory, so that interference between the slack portions of the cable guiding devices and other components of the rotating device 1 can be suppressed.

[0070] Also, the other end of each of the plurality of cable guiding devices may be fixed to the locking portion.

[0071] Accordingly, since the locking portion serves both to lock the slack of each of the plurality of cable guiding devices and to fix the other end of each of the plurality of cable guiding devices, there is no need to separately prepare a component for fixing the other end of each of the plurality of cable guiding devices. As a result, the number of parts of the rotating device 1 can be reduced.

[0072] <Second Embodiment>

[0073] (Structure of the Rotating Device)

[0074] Figure 5 and Figure 6 is a diagram showing an example of the external structure of the rotating device 2 according to the second embodiment of the present invention. In Figure 5 the state where the cable guiding device 42 and the cable guiding device 43 are wound around the turntable 41 the most is shown, and in Figure 6The state in which the cable guiding devices 42 and 43 are wound up the most is shown. Compared with the cable guiding device 12 of the rotating device 1 related to the above-described first embodiment, Figure 1 and Figure 2 the length of the link in the connecting direction of the cable guiding device 42 is shorter. In contrast, compared with the cable guiding device 13 of the rotating device 1 of Figure 1 and Figure 2 the length of the link in the connecting direction of the cable guiding device 43 is longer.

[0075] Figure 5 and Figure 6 The rotating device 2 shown is configured to include a turntable 41, a cable guiding device 42 as a first cable guiding device, a cable guiding device 43 as a second cable guiding device, a first locking portion 44 and a first locking portion 45, and a second locking portion 46 and a second locking portion 47. In addition, in the rotating device 2 shown in Figure 5 and Figure 6 the structures of the turntable 41, the first locking portion 44 and the first locking portion 45, and the second locking portion 46 and the second locking portion 47 are the same as those of the turntable 11, the first locking portion 14 and the first locking portion 15, and the second locking portion 16 and the second locking portion 17 shown in the above Figure 1 and Figure 2 so the description thereof is omitted.

[0076] The cable guiding device 42 is a component that guides the first cable 61 by accommodating at least a part of the first cable 61 in a plurality of connected links 421. For example, it is composed of a so-called cable bracket that can protect and guide a movable cable. One end of the cable guiding device 42 is fixed to the circumferential side surface 411 of the turntable 41, and the other end is fixed to a surface 441 near the left end in the left-right direction of the first locking portion 44. The cable guiding device 42 has a fixing portion 422 for fixing one end to the circumferential side surface 411 of the turntable 41, and a fixing portion 423 for fixing the other end to the surface 441 of the first locking portion 44.

[0077] The cable guiding device 42 bends corresponding to the rotation in the circumferential direction of the turntable 41 and is wound around the circumferential side surface 411 of the turntable 41 or is wound back. As described above, Figure 5 represents the state in which the cable guiding device 42 is wound up the most on the circumferential side surface 411 of the turntable 41. Therefore, if the turntable 41 rotates to the right in the circumferential direction (clockwise rotation) from the state shown in Figure 5 the cable guiding device 42 bends corresponding to its rotation, is wound back while separating from the circumferential side surface 411, and finally becomes the state shown in Figure 6 And if the turntable 41 is from Figure 6If the shown state reverses to the left in the circumferential direction (counterclockwise rotation), the cable guide device 42 will ultimately become Figure 5 the shown state.

[0078] The cable guide device 43 is a component that guides the second cable 62 by accommodating at least a part of the second cable 62 in a plurality of connected links 431. For example, it is composed of a so-called cable bracket that can protect and guide a movable cable. One end of the cable guide device 43 is fixed on the circumferential side surface 411 of the turntable 41, and the other end is fixed on the surface 451 near the right end in the left-right direction of the first locking portion 45. The cable guide device 43 has a fixing portion 432 for fixing one end on the circumferential side surface 411 of the turntable 41, and a fixing portion 433 for fixing the other end on the surface 451 of the first locking portion 45.

[0079] The cable guide device 43 bends corresponding to the circumferential rotation of the turntable 41 and is wound around the circumferential side surface 411 of the turntable 41 or unwound. As described above, Figure 5 represents the state where the cable guide device 43 is wound around the circumferential side surface 411 of the turntable 41 the most. Therefore, if the turntable 41 rotates from Figure 5 the shown state to the right in the circumferential direction (clockwise rotation), the cable guide device 43 bends corresponding to its rotation, separates from the circumferential side surface 411, and is unwound, and ultimately becomes Figure 6 the shown state. And if the turntable 41 reverses from Figure 6 the shown state to the left in the circumferential direction (counterclockwise rotation), the cable guide device 43 will ultimately become Figure 5 the shown state.

[0080] Here, among the plurality of (two in this embodiment) cable guide devices constituting the rotating device 2 according to the second embodiment, the cable guide device arranged on the lower side in the up-down direction of the turntable 41 is longer in the link connection direction than the cable guide device arranged on the upper side in the up-down direction of the turntable 41. That is, in Figure 5 and Figure 6 the shown example, the cable guide device 43 arranged on the lower side in the up-down direction of the turntable 41 is longer in the link connection direction than the cable guide device 42 arranged on the upper side in the up-down direction of the turntable 41.

[0081] During reversal, the cable guide device 42 and the cable guide device 43 tend to become slack toward the lower side in the up-down direction due to their own weights. If the cable guide device 42 and the cable guide device 43 become too slack toward the lower side, there is a possibility of interference with other components. Therefore, the cable guide device 42 and the cable guide device 43 are designed such that the length in the link connection direction is such that even if they become slack toward the lower side due to their own weights, they will not interfere with other components.

[0082] However, since the cable guiding device 43 is arranged at a position lower than the turntable 41, even if it sags downward due to its own weight, it will be caught by the first locking portion 45. Therefore, the risk of interference between the cable guiding device 43 and other components is lower than that of the cable guiding device 42 arranged at a position higher than the turntable 41. From this, it can be known that the constraint on the length in the connecting direction of the cable guiding device 43 is less than that of the cable guiding device 42. As a result, as Figure 5 and Figure 6 shown, the cable guiding device 43 can be lengthened in the connecting direction compared to the cable guiding device 42.

[0083] In summary, as long as the rotating device 2 according to the second embodiment of the present invention adopts the following structure, various embodiments can be adopted.

[0084] That is, the rotating device 2 according to the second embodiment includes: a turntable 41, to which a plurality of cables (for example, a first cable 61 and a second cable 62) are connected at different positions on the circumferential side surface 411, and which can rotate in the circumferential direction; a plurality of cable guiding devices (for example, cable guiding devices 42 and 43), arranged at positions that do not overlap in the rotation axis direction of the turntable 41, accommodating at least a part of the cable in a plurality of link sections (for example, link section 421) that can be bent and connected, with one end fixed to the circumferential side surface 411 of the turntable 41 and the other end fixed to a position independent of the rotation of the turntable 41 (for example, the surface 441 of the first locking portion 44), and the plurality of cable guiding devices are respectively wound around the circumferential side surface 411 of the turntable 41 or rewound in correspondence with the circumferential rotation of the turntable 41.

[0085] Here, the plurality of cable guiding devices may also be such that, compared with the cable guiding device 42 whose position where the other end is fixed (for example, the surface 441 of the first locking portion 44, the surface 451 of the first locking portion 45) is arranged on the upper side in the up-down direction in the turntable 41, the length of the link connection direction of the cable guiding device 43 whose position where the other end is fixed is arranged on the lower side in the up-down direction in the turntable 41 is longer.

[0086] Thus, compared with the cable guiding device 42 arranged on the upper side in the up-down direction in the turntable 41, the cable guiding device 43 arranged on the lower side becomes longer in the link connection direction. The entire cable guiding device 43 is caught by the first locking portion 45 during reverse rotation. Therefore, compared with the cable guiding device 42 that is likely to sag downward in the up-down direction due to its own weight during reverse rotation, the influence of interference with other components is smaller. Therefore, compared with the cable guiding device 42, the constraint on the length in the connecting direction of the cable guiding device 43 is less, and thus the length in the connecting direction of the cable guiding device 43 can be made longer than the length in the connecting direction of the cable guiding device 42.

[0087] <Comparison of Embodiments>

[0088] As described above, in the rotating device 1 according to the first embodiment, the lengths in the link connection direction of the plurality of cable guiding devices (cable guiding device 12 and cable guiding device 13) wound around the circumferential side surface 111 of the turntable 11 are the same. In contrast, in the rotating device 2 according to the second embodiment, the lengths in the link connection direction of the plurality of cable guiding devices (cable guiding device 42 and cable guiding device 43) wound around the circumferential side surface 411 of the turntable 41 are different. Specifically, as described above, compared with the cable guiding device 42 disposed on the upper side in the vertical direction in the turntable 41, the cable guiding device 43 disposed on the lower side is longer in the link connection direction. Therefore, when comparing the rotating device 1 according to the first embodiment with the rotating device 2 according to the second embodiment, for example, it can be said as follows.

[0089] That is, in the rotating device 2 according to the second embodiment, the length in the link connection direction of the link 421 of the cable guiding device 42 disposed on the upper side of the turntable 41 is shorter than the length in the link connection direction of the link 431 of the cable guiding device 43 disposed on the lower side. Therefore, when reversing, the risk of interference that may occur due to the cable guiding device 42 sagging downward due to its own weight is relatively low. In contrast, in the rotating device 1 according to the first embodiment, since the lengths in the link connection direction of the links of the cable guiding device 12 and the cable guiding device 13 are the same, the deviation of the center of gravity is not likely to occur when the turntable 11 rotates, and smooth rotation can be achieved.

[0090] <Others>

[0091] In the above-described embodiments (the first embodiment and the second embodiment), the number of cable guiding devices wound around the circumferential side surface of the turntable is 2, but it is not limited thereto. The number of cable guiding devices wound around the circumferential side surface of the turntable can be 3 or more.

Claims

1. A rotating device, characterized in that: have: A turntable, with a plurality of cables connected at different positions on the circumferential side thereof, capable of rotating in the circumferential direction; and A plurality of cable guides are arranged at positions that do not overlap in the direction of the rotation axis of the turntable, at least a portion of the cable is accommodated in a plurality of links that are connected in a bendable manner, one end of the cable is fixed to the peripheral side surface, and the other end is fixed at a position independent of the rotation of the turntable, The plurality of cable guide devices are respectively wound around the peripheral side surface or rewound in accordance with the circumferential rotation of the turntable.

2. The rotating device according to claim 1, characterized in that: The plurality of cable guide devices are arranged at positions where they do not interfere with each other when being wound around the peripheral side surface and when being rewound.

3. The rotating device according to claim 1, characterized in that: Among the plurality of cable guide devices, a cable guide device whose other end is fixed at a lower side in the turntable in the vertical direction has a longer length of the chain link in the connection direction than a cable guide device whose other end is fixed at an upper side in the turntable in the vertical direction.

4. The rotating device according to claim 1, characterized in that: In the plurality of cable guiding devices, When the one end is arranged in the direction of 2 o'clock to 4 o'clock relative to the center of the radial direction of the turntable, the other end is not fixed in the direction of 8 o'clock to 10 o'clock relative to the center of the radial direction of the turntable, When the one end is arranged in the direction of 8 o'clock to 10 o'clock relative to the radial center of the turntable, the other end is not fixed in the direction of 2 o'clock to 4 o'clock relative to the radial center of the turntable.

5. The rotating device according to claim 1, characterized in that: As the plurality of cable guide devices, a first cable guide device and a second cable guide device are arranged. One end of the first cable guide device and one end of the second cable guide device are arranged at positions symmetrical with respect to a rotation center of the turntable.

6. The rotating device according to claim 1, characterized in that: Also available: The locking portion is disposed at a position independent of the rotation of the turntable, and locks each of the plurality of cable guide devices that are loosened toward the outer side in the radial direction of the turntable.

7. The rotating device according to claim 6, characterized in that The other end is fixed on the locking portion.

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