Rotating body

Abstract

To provide a rotor in which an object to be conveyed hardly rattles when the conveying direction of the object to be conveyed is converted, the conversion accuracy of the conveying direction is hardly reduced, and the weight limit of the object to be conveyed can be increased.SOLUTION: Depending on the rotation angle of the rotary body 1, either a state in which the first protruding portion 11a of the second rotary member 10 is in line contact with the object to be conveyed or a state in which the second protruding portion 11b of one second rotary member 10 of the second rotary members 10 adjacent to each other and the third protruding portion 11c of the other second rotary member 10 are simultaneously in contact with the bottom surface of the object to be conveyed C is obtained. Therefore, since there is no rotating body 1 that does not come into contact with the object to be conveyed, the problem can be solved.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a rotating body that is attached to each peripheral surface of a plurality of parallelly arranged transport rollers in a transport direction changing device that changes the transport direction of an object to be transported, and that changes the transport direction of the object to be transported. [Background technology]

[0002] A known example of this type of rotating body is a wheel 1 provided in a conveying direction changing device described in Patent Document 1. This wheel 1 includes a disk-shaped disk portion 11, a spherical roller assembly 2 embedded in this disk portion 11, and a mounting portion 15 for mounting the wheel 1 to a mounting shaft 19. The wheel 1 is mounted by inserting a bolt 35 into the mounting portion 15 and pressing the tip of the bolt 35 against the mounting shaft 19. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2018-104120 Summary of the Invention [Problem to be solved by the invention]

[0004] FIG. 6(B) is an explanatory diagram of a conventional conveying direction changing device as seen from the side. A wheel 70 is attached to each of the parallelly arranged mounting shafts 90. A spherical roller assembly 71 is embedded in the circumferential surface of each wheel 70. An object C to be conveyed that has been conveyed from a specific conveying line is placed on each wheel 70. The bottom surface of the object C is flat. In the figure, as indicated by the symbol P, the spherical roller assembly 71 of each wheel 70 that is positioned opposite the bottom surface of the object C makes point contact with the bottom surface of the object C. Furthermore, not all of the spherical roller assemblies 71 of the wheels 70 make point contact with the bottom surface of the object C; only two wheels 70 make point contact.

[0005] As described above, conventional conveying direction changing devices are structured to make point contact with the bottom surface of the object C to be conveyed, and furthermore, there are wheels 70 that do not make point contact with the bottom surface of the object C to be conveyed, which results in the problem that the object C to be conveyed is prone to rattle when the conveying direction of the object C to be conveyed is changed. Furthermore, depending on the size and bottom shape of the object C to be conveyed, the number of points that make contact with the bottom surface of the object C to be conveyed may be insufficient, which may result in a decrease in the accuracy of changing the conveying direction. Furthermore, the conventional wheel 70 has a small contact area with the bottom surface of the object C, and therefore a small frictional force with the bottom surface of the object C, making it difficult to change the conveying direction of an object C weighing more than a certain weight. In other words, the weight limit for the object to be conveyed is low.

[0006] Therefore, the present invention was created to solve the above-mentioned problems, and aims to provide a rotating body that is less likely to cause rattling of the object to be transported when the transport direction of the object is changed, is less likely to reduce the accuracy of the change in transport direction, and can further increase the weight limit of the object to be transported. [Means for solving the problem]

[0007] (First invention) In order to achieve the above-mentioned object, a rotating body (1) according to a first aspect of the present invention comprises: In a conveying direction changing device (100: FIGS. 7 and 8) for changing the conveying direction of an object to be conveyed (C: FIG. 6), a rotating body (1) is attached to each peripheral surface of a plurality of conveying rollers (60) arranged in parallel, and changes the conveying direction of the object to be conveyed (C), a first rotating member (50: FIG. 4) formed in a cylindrical shape so that the conveying roller (60) is inserted through the center of rotation; a plurality of second rotating members (10) provided on the circumferential surface (51) of the first rotating member (50), A plurality of recesses (52) for respectively mounting the plurality of second rotating members (10) are arranged in the circumferential direction on the peripheral surface (51) of the first rotating member (50), The plurality of second rotating members (10) Each of the rotating members is rotatably mounted in a recess (52) with its own rotation axis tilted relative to the rotation axis of the first rotating member (50), and is characterized by having protrusions (11a, 11b, 11c: Figure 5 (B)) that protrude from the peripheral surface (51) of the first rotating member (50) and can come into line contact with the object to be transported (C).

[0008] (Effects of the first invention) According to the first invention, of the second rotating member rotatably mounted in the recess of the first rotating member, the protruding portion protruding from the peripheral surface of the first rotating member can come into line contact with the object to be transported. Therefore, since the contact area with the object is larger than that of a device that makes point contact with the object, the object is less likely to rattle when the conveying direction of the object is changed. Also, the accuracy of changing the conveying direction is less likely to decrease. Furthermore, the weight limit of the object whose conveying direction can be changed can be increased.

[0009] (Second Invention) In order to achieve the above-mentioned object, a rotating body (1) according to a second aspect of the present invention is the rotating body (1) according to the first aspect of the present invention, The protrusions (11a, 11b, 11c) are a first protrusion (11a) formed in a cylindrical shape; a second protrusion (11b) formed from one end face of the first protrusion (11a) and having a truncated cone shape with its top pointing outward; a third protrusion (11c) formed from the other end face of the first protrusion (11a) and having a truncated cone shape with its top pointing outward, In the second rotary members (10) adjacent to each other, the second protrusion (11b) of one second rotary member (10) and the third protrusion (11c) of the other second rotary member (10) are close to each other; The first protrusion (11a), the second protrusion (11b) and the third protrusion (11c) are each capable of making line contact with the object (C) to be conveyed.

[0010] (Effects of the second invention) According to the second aspect of the present invention, the first protrusion, the second protrusion, and the third protrusion can each come into line contact with the object to be conveyed, and therefore, depending on the angle of the rotating body, any one of the protrusions can come into line contact with the object to be conveyed. Furthermore, in the adjacent second rotating members, the second protrusion of one second rotating member and the third protrusion of the other second rotating member are close to each other, so there is a high probability that either or both of the second protrusion and the third protrusion will come into contact with the object to be conveyed. Therefore, since the contact area with the object is likely to be larger than that of a device that makes point contact with the object, the object is less likely to rattle when the conveying direction of the object is changed. Also, the accuracy of changing the conveying direction is less likely to decrease. Furthermore, the weight limit of the object whose conveying direction can be changed can be increased.

[0011] (Third Invention) In order to achieve the above-mentioned object, a rotating body (1) according to a third aspect of the present invention is the rotating body (1) according to the second aspect of the present invention, Depending on the rotation angle of the rotating body (1), a state in which any one of a first protrusion (11a), a second protrusion (11b), and a third protrusion (11c) provided on one second rotation member (10) among the plurality of second rotation members (10) is in line contact with the object to be conveyed (C); a state in which the second protrusion (11b) of one second rotating member (10) and the third protrusion (11c) of the other second rotating member (10) are simultaneously in contact with the object to be conveyed (C); The state is characterized by being in one of the following states.

[0012] (Effect of the third invention) According to the third invention, depending on the rotation angle of the rotating body, either one of the first protrusion, the second protrusion, and the third protrusion can be in line contact with the transported object, or, in adjacent second rotating members, the second protrusion of one second rotating member and the third protrusion of the other second rotating member can be in simultaneous contact with the transported object. In other words, even if the first protrusion does not come into line contact with the object to be transported, the second protrusion of one of the adjacent second rotating members and the third protrusion of the other second rotating member can come into contact with the object to be transported simultaneously, so that when multiple rotating bodies are used, it is possible to prevent the occurrence of a rotating body that does not come into contact with the object to be transported. Therefore, it is possible to further reduce the occurrence of rattles in the transported object. Furthermore, when multiple rotating bodies are used, all of the rotating bodies can come into contact with the transported object, which further improves the accuracy of changing the transport direction. Furthermore, it is possible to further increase the weight limit of the transported object whose transport direction can be changed.

[0013] (Fourth Invention) In order to achieve the above-mentioned object, a rotating body (1) according to a fourth aspect of the present invention is the rotating body (1) according to any one of the first to third aspects of the present invention, a pair of clamping members (21, 22: FIG. 5(A)) for clamping the circumferential surface of the conveying roller (60); A fixing portion (54) for fixing the pair of clamping members (21, 22) is provided on one end surface of the first rotating member (50), Each pair of clamping members (21, 22) has inner walls (21b, 22b: FIG. 4) whose shape matches the circumferential surface of the conveying roller (60), The rotating body (1) is A pair of clamping members (21, 22) fixed to the fixing portion (54) clamp the circumferential surface of the conveying roller (60) with their own inner walls (21b, 22b), thereby being fixed to the circumferential surface of the conveying roller (60).

[0014] (Effect of the fourth invention) According to the fourth aspect of the present invention, a pair of clamping members fixed to a fixed portion on one end face of the first rotating member clamp the circumferential surface of the conveying roller with their respective inner walls, thereby fixing the rotating body to the circumferential surface of the conveying roller. In addition, the inner walls of each clamping member have a shape that matches the circumferential surface of the conveying roller. Therefore, according to the fourth aspect of the present invention, the contact area of ​​the portions of the clamping members that clamp the conveying roller can be increased, which makes it more difficult for the fixed position of the rotating body to shift relative to the conveying roller than in conventional structures in which the tip of a bolt is pressed against the circumferential surface of the conveying roller to attach the rotating body. In other words, the clamping force (clamping force) of the rotating body to the conveying roller can be increased.

[0015] (Fifth Invention) In order to achieve the above-mentioned object, a rotating body (1) according to a fifth aspect of the present invention is the rotating body (1) according to any one of the first to third aspects of the present invention, The conveying roller (60) includes a first clamping member (20) having a pair of clamping members (21, 22) for clamping the circumferential surface of the conveying roller (60), and a second clamping member (30) having a pair of clamping members (31, 32) for clamping the circumferential surface of the conveying roller (60), A first fixing portion (54) for fixing the first clamping member (20) is provided on one end surface of the first rotating member (50), The other end surface of the first rotating member (50) is provided with a second fixing portion (56) for fixing the second clamping member (30), Each of the clamping members (21, 22, 31, 32) of the first clamping member (20) and the second clamping member (30) has an inner wall (21b, 22b, 31b, 32b: FIG. 2) whose shape matches the circumferential surface of the conveying roller (60), The rotating body (1) is The first clamping member (20) fixed to the first fixing portion (54) clamps the circumferential surface of the conveying roller (60) with its inner walls (21b, 22b), and the second clamping member (30) fixed to the second fixing portion (56) clamps the circumferential surface of the conveying roller (60) with its inner walls (31b, 32b), thereby being fixed to the circumferential surface of the conveying roller (60).

[0016] (Effect of the fifth invention) According to the fifth aspect of the present invention, the first clamping member fixed to the first fixed portion of the first rotating member clamps the circumferential surface of the conveying roller with its inner wall, and the second clamping member fixed to the second fixed portion of the first rotating member clamps the circumferential surface of the conveying roller with its inner wall, thereby fixing the rotating body to the circumferential surface of the conveying roller. In addition, the inner wall of each clamping member has a shape that matches the circumferential surface of the conveying roller. In other words, according to the fifth aspect of the present invention, both ends of the first rotating member can be fixed to the circumferential surface of the conveying roller, thereby further increasing the fixing force to the conveying roller. In other words, the clamping force (holding force) of the rotating body to the conveying roller can be further increased. Therefore, according to the fifth invention, the fixing force of the rotating body relative to the conveying roller can be further increased, making it even less likely that the fixed position of the rotating body relative to the conveying roller will shift, thereby further improving the accuracy of changing the conveying direction of the object to be conveyed.

[0017] (Sixth Invention) In order to achieve the above-mentioned object, a rotating body (1) according to a sixth aspect of the present invention is the rotating body (1) according to the above-mentioned fourth aspect of the invention, A gap (S: FIG. 2) is formed between opposing portions (21d, 22d, 31d, 32d) of a pair of clamping members (21, 22) that clamp the circumferential surface of the conveying roller (60), One of the clamping members (21) of the pair of clamping members has an insertion hole (21c: FIG. 5) formed therethrough for inserting a bolt (40) for fastening the clamping members together, The other clamping member (22) of the pair of clamping members is characterized by having a screw hole (22c: Figure 2) formed therein for fastening the bolt (40) inserted through the insertion hole (21c).

[0018] (Effect of the sixth aspect of the invention) According to the sixth invention, by inserting a bolt through one of the clamping members and fastening that bolt to the other clamping member, the inner walls of each clamping member are pressed against the conveying roller, and the rotating body can be firmly fixed to the conveying roller. In addition, since a gap is formed between the opposing parts of a pair of clamping members that clamp the circumferential surface of the conveying roller, the fixing force to the conveying roller can be increased by tightening the bolts so that the gap becomes smaller. Furthermore, the pressure applied by each clamping member can be adjusted according to the strength of the peripheral surface of the conveying roller. Furthermore, even if the diameter of the first rotating member is increased to accommodate changes in the diameter of the conveying roller, by forming each clamping member so that the above-mentioned gap is formed, the conveying roller can be clamped by each clamping member, and the rotating body can be fixed to the conveying roller.

[0019] (Seventh Invention) In order to achieve the above-mentioned object, a rotating body (1) according to a seventh aspect of the present invention is the rotating body (1) according to any one of the first to third aspects of the present invention, The first rotating member (50) The rotary member is divided along its rotation center into a first divided rotary member (50A: FIG. 10) and a second divided rotary member (50B: FIG. 10), The first divided rotation member (50A) and the second divided rotation member (50B) are characterized by being configured to sandwich the circumferential surface (60a: FIG. 11) of the transport roller (60).

[0020] (Effect of the seventh invention) According to the seventh invention, the first rotating member is divided into a first divided rotating member and a second divided rotating member, and the first divided rotating member and the second divided rotating member each clamp the circumferential surface of the conveying roller, thereby enabling the first rotating member to be clamped against the circumferential surface of the conveying roller. In other words, there is no need to remove the conveying roller from the conveying direction changing device and insert the conveying roller into the first rotating member, and the first rotating member can be attached to the conveying roller while it is still attached to the conveying direction changing device. Therefore, the number of steps for mounting the rotating body on the transport roller can be reduced, and the efficiency of the work of mounting the rotating body on the transport roller can be improved.

[0021] (8th invention) In order to achieve the above-mentioned object, a rotating body (1) according to an eighth aspect of the present invention is the rotating body (1) according to the seventh aspect of the present invention, a first clamping member (20) having a pair of clamping members (21, 22) for clamping the circumferential surface (60a) of the conveying roller (60), and a second clamping member (30) having a pair of clamping members (31, 32) for clamping the circumferential surface (60a) of the conveying roller (60), A first fixing portion (54A: FIG. 10) for fixing one of the first clamping members (21) is provided on one end surface of the first divided rotating member (50A), The other end surface of the first divided rotary member (50A) is provided with a second fixing portion (56A: FIG. 11) for fixing one of the second clamping members (31), A third fixing portion (54B: FIG. 10) for fixing the other of the first clamping members (22) is provided on one end surface of the second divided rotary member (50B), The other end surface of the second divided rotary member is provided with a fourth fixing portion (56B: FIG. 11) for fixing the other second clamping member (32), The first divided rotation member (50A) and the second divided rotation member (50B) each have an inner wall whose shape matches the circumferential surface (60a) of the conveying roller (60); Each of the first and second clamping members (21, 22, 31, 32) of the first and second clamping members (20, 30) has an inner wall having a shape that matches the peripheral surface (60a) of the conveying roller (60), The first divided rotary member (50A) and the second divided rotary member (50B) are The first clamping member (20) fixed to the first fixing portion (54A) and the third fixing portion (54B) clamps the circumferential surface (60a) of the conveying roller (60) with its inner wall, and the second clamping member (30) fixed to the second fixing portion (56A) and the fourth fixing portion (56B) clamps the circumferential surface (60a) of the conveying roller (60) with its inner wall, thereby being fixed to the circumferential surface (60a) of the conveying roller (60).

[0022] (Effect of the eighth invention) According to an eighth aspect of the present invention, the first and second divided rotation members are fixed to the circumferential surface of the conveying roller by the first clamping member fixed to the first and third fixed portions clamping the circumferential surface of the conveying roller with its inner walls, and the second clamping member fixed to the second and fourth fixed portions clamping the circumferential surface of the conveying roller with its inner walls. Furthermore, the inner walls of the first and second divided rotation members have a shape that matches the circumferential surface of the conveying roller, and the inner walls of the first and second clamping members also have a shape that matches the circumferential surface of the conveying roller. In other words, according to the eighth aspect of the present invention, the ends of the first and second divided rotation members can be fixed to the circumferential surface of the conveying roller, thereby further increasing the fixing force to the conveying roller, i.e., the clamping force of the rotating body to the conveying roller can be further increased. Therefore, according to the eighth invention, the fixing force of the rotating body relative to the conveying roller can be further increased, making it even less likely that the fixed position of the rotating body relative to the conveying roller will shift, thereby further improving the accuracy of changing the conveying direction of the object to be conveyed. [Effects of the Invention]

[0023] According to the present invention, it is possible to provide a rotating body that is less likely to cause rattle when the transporting direction of the object is changed, there is no risk of the accuracy of changing the transporting direction being reduced, and further, it is possible to increase the weight limit of the object to be transported. [Brief explanation of the drawings]

[0024] [Figure 1] 1 is an explanatory front view of a rotating body according to a first embodiment of the present invention. [Figure 2] FIG. 2 is an explanatory cross-sectional view taken along the arrow AA in FIG. [Figure 3] FIG. 2 is an explanatory left side view of the rotating body shown in FIG. [Figure 4]FIG. 2 is a perspective view of the rotating body shown in FIG. [Figure 5] 2A is an exploded perspective view of the rotating body shown in FIG. 1, and FIG. 2B is a cross-sectional explanatory view of the second rotating member shown in FIG. 1A cut along the center of rotation. [Figure 6] FIG. 1A is an explanatory diagram showing an example of use of a rotating body according to an embodiment of the present invention, and FIG. 1B is an explanatory diagram showing an example of use of a conventional rotating body. [Figure 7] 2A is a plan view of a conveying direction changing device to which the rotating body shown in FIG. 1 is applied, and FIG. 2B is a front view of FIG. [Figure 8] FIG. 8 is a perspective view of the conveying direction changing device shown in FIG. 7. [Figure 9] FIG. 4 is a perspective view of a rotating body according to a second embodiment of the present invention. [Figure 10] FIG. 10 is an exploded perspective view of the rotating body shown in FIG. [Figure 11] FIG. 10 is an exploded side view of the rotating body shown in FIG. [Figure 12] 10 is a perspective explanatory view showing how the rotating body shown in FIG. 9 is attached to a conveying roller. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0025] [Main components of the transport device] A transport device to which a rotating body according to an embodiment of the present invention is applied will be described with reference to FIGS. The conveying direction changing device 100 is disposed at a location where conveying lines for conveying objects C (FIG. 6) intersect, and changes the conveying direction so that the object C conveyed from one conveying line can be conveyed to the other conveying line. In the example shown in FIG. 7(A), the conveying direction changing device 100 changes the conveying direction of the object conveyed from the direction indicated by arrow F1 to the direction indicated by arrow F2. The conveying direction changing device 100 includes multiple conveying rollers 60 arranged in parallel. Each conveying roller 60 is formed in a pipe shape and has a circular cross section cut in a direction perpendicular to the rotation center. Each conveying roller 60 has a rotating structure and incorporates a motor, reduction gear, power transmission unit, etc. for rotating the roller. A plurality of rotating bodies 1 of this embodiment are attached to the circumferential surface of each conveying roller 60. The rotating bodies 1 are arranged at predetermined intervals along the rotation axis of the conveying roller 60, and are arranged so that the rotating bodies 1 do not interfere with each other on adjacent conveying rollers 60. In other words, as shown in FIG. 7(A), when the conveying direction changing device 100 is viewed from above, the rotating bodies 1 are arranged to form a checkerboard pattern.

[0026] Each conveying roller 60 is rotatably supported by support members 63 and 64 arranged opposite each other. A plurality of free rollers 61 serving as stoppers are provided along the upper surface of the support member 64. A support member 62 is arranged between the front ends of the support members 63 and 64, and a plurality of free rollers 61 serving as stoppers are provided along the upper surface of the support member 62. Each conveying roller 60 rotates in the direction indicated by arrow F1 (clockwise as viewed from the right side of the drawing). An object C conveyed from the direction indicated by arrow F1 is conveyed onto the conveying direction changing device 100 by each rotating body 1 attached to each conveying roller 60, and the upper end C1 of the object C abuts against each free roller 61 attached to the support member 62. Subsequently, the object C maintains its upper end C1 abutting against the free rollers 61, and is conveyed in the direction indicated by arrow F2 by thrust forces generated by each rotating body 1 fixed to each conveying roller 60. That is, the conveying direction is changed.

[0027] Furthermore, when it is desired to transport the object C to be transported in the opposite direction to the arrow F2 (to the left in the figure), the inclination of each second rotating member 10 provided on each rotating body 1 is set to the opposite inclination (the rotation axis extends from the lower right to the upper left in the figure) from the inclination shown in Figure 7 (the rotation axis extends from the lower left to the upper right in the figure), and the rotating body 1 is attached to each transport roller 60. In this way, the conveying direction of the object C to be conveyed can be changed by attaching a rotating body 1 having a second rotating member 10 with a different inclination to each conveying roller 60 without changing the rotation direction of each conveying roller 60.

[0028] Incidentally, in order to transport the object C even when the horizontal position of the object C relative to each transport roller 60 is not constant, it is necessary to provide a margin in the width perpendicular to the transport direction. In other words, it is necessary to use transport rollers 60 that are long in the central axis direction. However, in this embodiment, by using each rotating body 1 and each free roller 61, the object C can be conveyed with one end of the object C aligned, so that the width perpendicular to the conveying direction can be minimized. In other words, the length of each conveying roller 60 in the central axis direction can be minimized. Furthermore, when a sensor for detecting the transport object C is disposed on the transport path, if the sensor is disposed to the side of the ends of the transport object C that are transported together, the distance between the sensor and the transport object C will be constant, preventing detection errors due to changes in the detection distance. Note that, when changing the ends of the transport object C that are to be aligned, it is sufficient to mount a rotating body 1 with the inclination of each second rotating member 10 reversed on each transport roller 60, and to place the free roller 61 in the direction of the ends that are to be aligned.

[0029] First Embodiment A rotating body according to a first embodiment of the present invention will be described with reference to the drawings. [Main components of the rotating body] As shown in FIGS. 1 to 5, the rotating body 1 of this embodiment includes a first rotating member 50 formed in a cylindrical shape so that a conveying roller 60 is inserted through its rotation center, and a plurality of second rotating members 10 provided on a circumferential surface 51 of the first rotating member 50. The first rotating member 50 is formed in a cylindrical or drum shape, and has an insertion hole H (FIG. 3) formed through its rotation center for inserting the conveying roller 60. A plurality of recesses 52 are arranged in the circumferential direction on the circumferential surface 51 of the first rotating member 50, each for providing one of the plurality of second rotating members 10. The plurality of second rotating members 10 are rotatably provided in the recesses 52 so that their rotation axes are inclined with respect to the rotation axis of the first rotating member 50. For example, the second rotating member 10 is provided so that its rotation axis forms a 45-degree angle with the rotation axis of the first rotating member 50. As described above, the first rotating member 50 is formed with recesses 52 for individually accommodating the second rotating members 10, and the recesses 52 are spaced apart, thereby increasing the rigidity of the first rotating member 50. In other words, a plurality of second rotating members 10 are provided while increasing the rigidity of the first rotating member 50. In this embodiment, eight recesses 52 are arranged on the circumferential surface 51 of the first rotating member 50, and eight second rotating members 10 are arranged therein.

[0030] As shown in FIG. 5(B), the second rotating member 10 includes a barrel-shaped main body 11, a rotating shaft member 12, and an oil-free bushing 13. A cylindrical first protrusion 11a is formed in the center between both end faces of the main body 11. A truncated conical second protrusion 11b is formed in the range from the first protrusion 11a to one end of the main body 11 (the left end in the figure), with its apex facing outward. Furthermore, a truncated conical third protrusion 11c is formed in the range from the first protrusion 11a to the other end of the main body 11 (the right end in the figure), with its apex facing outward. In other words, the main body 11 of the second rotating member 10 is formed in a shape in which the second protrusion 11b is formed at one end of the first protrusion 11a and the third protrusion 11c is formed at the other end.

[0031] At both ends of the main body 11, there are formed through-holes 11d for inserting the rotating shaft member 12, and an oil-free bushing 13 serving as a bearing is fitted into each of the through-holes 11d. The rotating shaft member 12 is inserted into the main body 11 through each of the oil-free bushings 13. In other words, the second rotating member 10 is configured to be rotatable around the rotating shaft member 12 inserted into the main body 11 as a rotation axis. Furthermore, because the rotating shaft member 12 uses the oil-free bushing 13 as a bearing, the bearing is maintenance-free and has a longer service life than a bearing. The material forming the second rotating member 10 can be changed depending on the material and weight of the object to be conveyed C. For example, if the object to be conveyed C is relatively light, a material with a high friction coefficient such as polyurethane or rubber can be used, and if the object to be conveyed C is relatively heavy, a synthetic resin such as MC nylon or polyacetal, or a metal such as stainless steel can be used.

[0032] As shown in FIG. 5(A), a recess 52 formed in a peripheral surface 51 of a first rotating member 50 has an insertion hole 53 formed therein for inserting and fixing a rotating shaft member 12 of a second rotating member 10. While only one insertion hole 53 is shown in the same figure, an insertion hole 53 is formed in each of a pair of opposing inner walls forming the recess 52. One second rotating member 10 is rotatably housed in each recess 52, and a first protrusion 11a, a second protrusion 11b, and a third protrusion 11c of each second rotating member 10 protrude from the peripheral surface 51 of the first rotating member 50. The peripheral surface of each first protrusion 11a of each second rotating member 10 is parallel to the peripheral surface 51 of the first rotating member 50.

[0033] 1, of the adjacent second rotating members 10, the third protrusion 11c of one second rotating member 10 and the second protrusion 11b of the other second rotating member 10 are close to each other. Specifically, a portion of the adjacent third protrusion 11c and a portion of the adjacent second protrusion 11b overlap along the rotation direction of the rotating body 1. In other words, the ends of the adjacent second rotating members 10 are not spaced apart, but rather overlap (interdigitate) in the horizontal direction on the circumferential surface 51 of the first rotating member 50.

[0034] Rotating body 1 also includes first clamping member 20 and second clamping member 30 for clamping the circumferential surface of conveying roller 60. First clamping member 20 includes a set of clamping members 21 and 22, two bolts 40, and four bolts 41. Second clamping member 30 includes a set of clamping members 31 and 32, two bolts 40, and four bolts 41. As shown in FIG. 5, a first annular fixing portion 54 for fixing the first clamping member 20 is provided on one end face (the left side face in FIG. 5) of the first rotating member 50. The first fixing portion 54 has a shape that protrudes from one periphery of the first rotating member 50 (the left periphery in FIG. 5) toward the center of rotation. Also, as shown in FIG. 1, a second annular fixing portion 56 for fixing the second clamping member 30 is provided on the other end face (the right side face in FIG. 1) of the first rotating member 50. The second fixing portion 56 has a shape that protrudes from the other periphery of the first rotating member 50 (the right periphery in FIG. 1) toward the center of rotation.

[0035] Each of the clamping members 21 and 22 is formed in the shape of a circular ring member cut in half. More specifically, each of the clamping members is formed by punching out the center of a circular plate of a predetermined thickness, and then cutting the circular ring member in half along the central axis. The clamping member 21 has an inner wall 21b (FIG. 4) shaped to fit onto the circumferential surface of the conveying roller 60, and the clamping member 22 also has an inner wall 22b shaped to fit onto the circumferential surface of the conveying roller 60. In this embodiment, the inner walls 21b and 22b are each formed in a semicircular shape in a side view. Similarly, the clamping members 31 and 32 are each formed in the shape of a circular ring member cut in half. More specifically, each clamping member is formed by punching out the center of a circular plate of a predetermined thickness and cutting it in half along the central axis. The clamping member 31 has an inner wall 31b (FIG. 2) shaped to fit onto the circumferential surface of the conveying roller 60, and the clamping member 32 also has an inner wall 32b shaped to fit onto the circumferential surface of the conveying roller 60. In this embodiment, the inner walls 31b and 32b are each formed in a semicircular shape in a side view.

[0036] Two insertion holes 21a for inserting bolts 41 are formed through sandwiching member 21, and two insertion holes 22a for inserting bolts 41 are formed through sandwiching member 22. As shown in FIGS. 3 and 4, each insertion hole 21a is formed at a position away from both ends 21d of sandwiching member 21, and each insertion hole 22a is formed at a position away from both ends 22d of sandwiching member 22. More specifically, each insertion hole 21a is formed near the circumferential center of inner wall 21b, and each insertion hole 22a is formed near the circumferential center of inner wall 22b. As shown in FIG. 5, first fixing portion 54 has four screw holes 55 for fastening bolts 41 inserted through insertion holes 21a of sandwiching member 21 and insertion holes 22a of sandwiching member 22.

[0037] 1 and 5, two insertion holes 31a for inserting bolts 41 are formed through sandwiching member 31, and two insertion holes (not shown) for inserting bolts 41 are formed through sandwiching member 32. Although not shown, each insertion hole 31a is formed at a position away from both ends 31d (FIG. 2) of sandwiching member 31, and each insertion hole of sandwiching member 32 is formed at a position away from both ends 32d (FIG. 2) of sandwiching member 32. More specifically, each insertion hole 31a is formed near the center in the circumferential direction of inner wall 31b (FIG. 2), and each insertion hole (not shown) of sandwiching member 32 is formed near the center in the circumferential direction of inner wall 32b. As shown in FIG. 1, second fixing portion 56 has two screw holes 55 formed therein for fastening bolts 41 inserted through insertion holes 31a of clamping member 31, and has two screw holes (not shown) formed therein for fastening bolts 41 inserted through insertion holes (not shown) of clamping member 32.

[0038] 5, two insertion holes 21c for inserting bolts 40 are formed on either side of the center of the peripheral surface of clamping member 21. Only one of the insertion holes 21c is shown in the figure. As shown in FIGS. 2 and 3, screw holes 22c for fastening bolts 40 inserted through insertion holes 21c are formed at both ends 22d of clamping member 22. 5, insertion holes 31c for inserting bolts 40 are formed penetrating the circumferential surface of clamping member 31 at two locations on either side of the center. In the drawing, only one of the insertion holes 31c is depicted. As shown in FIG. 2, screw holes 32c for fastening bolts 40 inserted through insertion holes 31c are formed at both ends 32d of clamping member 32. Both ends 21d, 22d and both ends 31d, 32d are each an example of the "opposing portions" of the present invention.

[0039] [Method of fixing the rotating body to the conveying roller] The conveying roller 60 is inserted into the insertion hole H (FIG. 3) of the first rotating member 50. Next, the inner wall 21b (FIG. 3) of the clamping member 21 is fitted onto the circumferential surface of the conveying roller 60. Next, the bolt 41 is fastened through the insertion hole 21a of the clamping member 21 into the screw hole 55 of the first fixing portion 54 of the first rotating member 50, thereby fixing the clamping member 21 to the first fixing portion 54. Next, the inner wall 22b (FIGS. 3 and 5) of the clamping member 22 is fitted onto the circumferential surface of the conveying roller 60, and both ends 22d (FIG. 3) of the clamping member 22 are brought into opposition to both ends 21d of the clamping member 21. Next, the bolt 41 is fastened to the screw hole 55 of the first fixing part 54 through the insertion hole 22a of the clamping member 22, thereby fixing the clamping member 22 to the first fixing part 54.

[0040] Next, inner wall 31b (FIG. 2) of clamping member 31 is fitted onto the circumferential surface of conveying roller 60. Next, bolt 41 is fastened through insertion hole 31a of clamping member 31 into threaded hole 55 of second fixing portion 56 of first rotating member 50, thereby fixing clamping member 31 to second fixing portion 56. Next, inner wall 32b (FIG. 2) of clamping member 32 is fitted onto the circumferential surface of conveying roller 60, and both ends 32d (FIG. 2) of clamping member 32 are positioned opposite both ends 31d of clamping member 31. Next, bolt 41 is fastened through insertion hole (not shown) of clamping member 32 into threaded hole 55 of second fixing portion 56, thereby fixing clamping member 32 to second fixing portion 56.

[0041] Next, bolt 40 is fastened through insertion hole 21c (FIG. 5) of clamping member 21 to screw hole 22c (FIG. 2) of clamping member 22, thereby clamping the circumferential surface of conveying roller 60 between clamping members 21 and 22. Next, bolt 40 is fastened through insertion hole 31c (FIG. 5) of clamping member 31 to screw hole 32c (FIG. 2) of clamping member 32, thereby clamping the circumferential surface of conveying roller 60 between clamping members 31 and 32. In this way, rotating body 1 is fixed to the circumferential surface of conveying roller 60. In addition, procedures other than those described above may also be used. For example, the clamping members 21, 22 and the clamping members 31, 32 may be temporarily assembled, and then fixed to the first rotating member 50, and the clamping members 21, 22 and the clamping members 31, 32 may be fixed to the first fixed portion 54 and the second fixed portion 56 of the conveying roller 60, respectively.

[0042] Incidentally, first clamping member 20, which is made up of clamping members 21 and 22 fixed to first fixed portion 54 of first rotating member 50, is formed concentrically with a diameter that is the same as or approximately the same as that of first rotating member 50. In addition, second clamping member 30, which is made up of clamping members 31 and 32 fixed to second fixed portion 56, is also formed concentrically with a diameter that is the same as or approximately the same as that of first rotating member 50. In other words, this is designed to prevent eccentricity from occurring when rotating body 1 rotates.

[0043] 2 and 3, a gap S is formed between both ends 21d of clamping member 21, which clamps the circumferential surface of conveying roller 60, and both ends 22d of clamping member 22. Also, as shown in FIG. 2, a gap S is formed between both ends 31d of clamping member 31, which clamps the circumferential surface of conveying roller 60, and both ends 32d of clamping member 32. The reason for the formation of gap S is that the diameters of first clamping member 20 and second clamping member 30 are slightly shorter than the diameter of conveying roller 60. If gap S were not formed, the amount of threading of bolt 40 would be limited, resulting in insufficient clamping force by first clamping member 20 and second clamping member 30, and the rotating body 1 might spin freely relative to conveying roller 60. However, by further screwing in the bolt 40 while the gap S is formed, the first clamping member 20 and the second clamping member 30 can press the circumferential surface of the conveying roller 60, eliminating the risk of the rotating body 1 spinning freely relative to the conveying roller 60.

[0044] Incidentally, it is necessary to make it possible to fix the rotating body 1 to the conveying roller 60 even if the diameter of the conveying roller 60 changes. In this case, if the diameter of the first rotating member 50 is made larger in anticipation of changes in the diameter of the conveying roller 60, the conveying roller 60 can be inserted into the first rotating member 50 even if the diameter of the conveying roller 60 changes. However, even if the transport roller 60 can be inserted into the first rotating member 50, the first rotating member 50 needs to be fixed to the transport roller 60, and therefore, in this embodiment, the following measures are taken.

[0045] As described above, since the insertion hole 21a of the clamping member 21 is formed at a position away from both ends 21d of the clamping member 21, the clamping member 21 is fixed to the first fixing portion 54 at a position away from both ends 21d. Furthermore, since the insertion hole 22a of the clamping member 22 is formed at a position away from both ends 22d of the clamping member 22, the clamping member 22 is fixed to the first fixing portion 54 at a position away from both ends 22d. Furthermore, since the insertion hole 31a of the clamping member 31 is formed at a position away from both ends 31d of the clamping member 31, the clamping member 31 is fixed to the second fixing portion 56 at a position away from both ends 31d. Furthermore, since the insertion holes (not shown) of the clamping member 32 are formed at positions away from both ends 32d of the clamping member 32, the clamping member 32 is fixed to the second fixing portion 56 at positions away from both ends 32d. Furthermore, each of the insertion holes 21c of the clamping member 21 is formed outside the corresponding insertion hole 21a, and each of the insertion holes 31c of the clamping member 31 is formed outside the corresponding insertion hole 31a.

[0046] Therefore, when the bolt 40 is fastened to each screw hole 22c (Figure 2) of the clamping member 22 through each insertion hole 21c of the clamping member 21, the fastening force acts on an area outside the area where the clamping members 21 and 22 are fixed, so the clamping members 21 and 22 deform in a direction that reduces the diameter they form, and can press against the circumferential surface of the conveying roller 60. Furthermore, when bolt 40 is fastened to each screw hole 32c (Figure 2) of clamping member 32 through each insertion hole 31c of clamping member 31, the fastening force acts on an area outside the area where clamping members 31 and 32 are fixed, so that clamping members 31 and 32 deform in a direction that reduces the diameter they form, and can press against the circumferential surface of conveying roller 60. In this embodiment, the above-described measures are taken, so that even if the diameter of the conveying roller 60 changes, the rotating body 1 can be fixed to the conveying roller 60. In addition, the fastening force of the bolt 40 can be adjusted depending on the material or strength of the conveying roller 60.

[0047] [Example of using a rotating object] FIG. 6A shows an example of use of the rotating body 1, in which the rotating body 1 attached to the conveying rollers 60 is in contact with an object C to be conveyed. The object C to be conveyed is formed in a plate shape, and its bottom surface is flat. In the example shown, a rotating body 1 is fixed to each of four conveying rollers 60. In the example shown in FIG. 6A, (L1) indicates that the first protrusion 11a of the second rotating member 10 provided on the rotating body 1 is in line contact with the bottom surface of the object C to be conveyed. In addition, in the example shown in (L2), the second protrusion 11b of one of the second rotating members 10 adjacent to each other provided on the rotating body 1 and the third protrusion 11c of the other second rotating member 10 are in contact with the bottom surface of the object C to be conveyed simultaneously.

[0048] The state shown by (L2) is due to the above-mentioned structure of the rotating body 1. In other words, the state shown by (L2) is reached because the ends of the adjacent second rotating members 10 closest to each other overlap (intersect) horizontally on the circumferential surface 51 of the first rotating member 50. In addition, the second protrusion 11b and the third protrusion 11c are also formed in a truncated cone shape and are capable of line contact with the bottom surface of the transport object C. Therefore, depending on the rotation angle of the rotating body 1, the second protrusion 11b or the third protrusion 11c will be in line contact with the bottom surface of the transport object C. In other words, depending on the rotation angle of the rotating body 1, it will be in either the state shown by (L1) or the state shown by (L2), so there will never be a rotating body 1 that does not come into contact with the bottom surface of the object C to be transported.

[0049] [Effects of the first embodiment] (1) According to the rotating body 1 of the first embodiment described above, of the second rotating member 10 rotatably mounted in the recess 52 of the first rotating member 50, any one of the first protrusion 11a, the second protrusion 11b, and the third protrusion 11c protruding from the peripheral surface 51 of the first rotating member 50 can come into line contact with the bottom surface of the object C to be transported. Therefore, since the contact area with the object C is larger than that of a device that makes point contact with the object C, the object C is less likely to rattle when the conveying direction of the object C is changed. Also, the accuracy of changing the conveying direction is less likely to decrease. Furthermore, the weight limit of the object C whose conveying direction can be changed can be increased.

[0050] (2) Furthermore, according to the rotating body 1 of the first embodiment described above, in the adjacent second rotating members 10, the second protrusion 11b of one second rotating member 10 and the third protrusion 11c of the other second rotating member 10 are close to each other, so there is a high probability that both or one of the second protrusion 11b and the third protrusion 11c will come into contact with the object C to be transported. Therefore, the contact area with the object C is likely to be larger than that of a device that makes point contact with the object C, so the object C is less likely to rattle when the conveying direction of the object C is changed. Also, the accuracy of changing the conveying direction is less likely to decrease. Furthermore, the weight limit of the object C whose conveying direction can be changed can be increased.

[0051] (3) Furthermore, according to the rotating body 1 of the first embodiment described above, depending on the rotation angle of the rotating body 1, it can be in either a state where one of the first protrusion 11a, the second protrusion 11b and the third protrusion 11c is in line contact with the transport object C (state (L1) in Figure 6(A)), or a state where, in adjacent second rotating members 10, the second protrusion 11b of one second rotating member 10 and the third protrusion 11c of the other second rotating member 10 are in simultaneous contact with the transport object C (state (L2) in Figure 6(A)). In other words, even if the first protrusion 11a does not come into line contact with the transport object C, the second protrusion 11b of one of the adjacent second rotating members 10 and the third protrusion 11c of the other second rotating member 10 can come into contact with the transport object C simultaneously, so that when multiple rotating bodies 1 are used, it is possible to prevent the occurrence of a rotating body 1 that does not come into contact with the transport object C. Therefore, it is possible to make it even more difficult for the object C to be conveyed to rattle. Furthermore, when multiple rotating bodies 1 are used, all of the rotating bodies 1 can come into contact with the object C to be conveyed, which further improves the accuracy of changing the conveying direction. Furthermore, it is possible to further increase the weight limit of the object C to be conveyed whose conveying direction can be changed.

[0052] (4) Furthermore, according to the rotating body 1 of the first embodiment described above, the first clamping member 20 fixed to the first fixed portion 54 of the first rotating member 50 clamps the circumferential surface of the conveying roller 60 with its inner walls 21b, 22b, and the second clamping member 30 fixed to the second fixed portion 56 of the first rotating member 50 clamps the circumferential surface of the conveying roller 60 with its inner walls 31b, 32b, thereby fixing the rotating body 1 to the conveying roller 60. Furthermore, the inner walls 21b, 22b, 31b, 32b of the clamping members 21, 22, 31, 32 each have a shape that matches the circumferential surface of the conveying roller 60. That is, according to the rotating body 1 of the first embodiment described above, both ends of the first rotating member 50 can be fixed to the transport roller 60, thereby further increasing the fixing force to the transport roller 60. In other words, the clamping force (holding force) of the rotating body 1 to the transport roller 60 can be further increased. Therefore, according to the rotating body 1 of the first embodiment described above, the fixing force of the rotating body 1 relative to the conveying roller 60 can be further increased, making it even less likely that the fixed position of the rotating body 1 relative to the conveying roller 60 will shift, thereby further improving the accuracy of changing the conveying direction of the object C to be conveyed.

[0053] Second Embodiment A rotating body according to a second embodiment of the present invention will be described with reference to FIGS. The rotating body 1 of this embodiment is characterized in that the first rotating member 50 is divided along its own center of rotation into a first divided rotating member 50A and a second divided rotating member 50B. The first divided rotating member 50A and the second divided rotating member 50B are each formed in the shape of a cylindrical member split in half along the rotation axis, and are each configured to clamp the peripheral surface 60a (Figure 11) of the conveying roller 60. Rotating body 1 includes first clamping member 20 having a pair of clamping members 21, 22 for clamping circumferential surface 60a of conveying roller 60, and second clamping member 30 having a pair of clamping members 31, 32 for clamping circumferential surface 60a of conveying roller 60. One end face (left side face in FIG. 11) of first divided rotating member 50A is provided with a first fixing portion 54A for fixing one clamping member 21 of first clamping member 20, and the other end face (right side face in FIG. 11) of first divided rotating member 50A is provided with a second fixing portion 56A for fixing one clamping member 31 of second clamping member 30.

[0054] One end face (the left side face in FIG. 11) of the second divided rotation member 50B is provided with a third fixing portion 54B for fixing the other clamping member 22 of the first clamping member, and the other end face (the right side face in FIG. 11) of the second divided rotation member 50B is provided with a fourth fixing portion 56B for fixing the other clamping member 32 of the second clamping member 30. The first divided rotation member 50A has an inner wall 50A1 (FIG. 10) whose shape matches the circumferential surface 60a of the conveying roller 60, and the second divided rotation member 50B also has an inner wall 50B1 (FIG. 10) whose shape matches the circumferential surface 60a of the conveying roller 60. As in the first embodiment described above, the clamping members 21, 22, 31, and 32 of the first clamping member 20 and the second clamping member 30 each have an inner wall whose shape matches the circumferential surface 60a of the transport roller 60.

[0055] Next, a method for fixing the rotating body 1 to the conveying roller 60 will be described with reference to the drawings. The clamping member 21 is fixed to the first fixing portion 54A (FIG. 11) of the first divided rotation member 50A by the bolt 41. Next, the clamping member 31 is fixed to the second fixing portion 56A (FIG. 11) of the first divided rotation member 50A by the bolt 41. Next, the clamping member 22 is fixed to the third fixing portion 54B (FIG. 11) of the second divided rotation member 50B by the bolt 41. Next, the clamping member 32 is fixed to the fourth fixing portion 56B (FIG. 11) of the second divided rotation member 50B by the bolt 41. Next, as shown in FIG. 12, the circumferential surface 60a of the conveying roller 60 is clamped between the first divided rotation member 50A and the second divided rotation member 50B. 11 and 12, when recess 52 straddles first divided rotation member 50A and second divided rotation member 50B, second rotation member 10 is pivotally supported in recess 52. Then, bolts 40 (FIG. 5) are inserted into the insertion holes 21c of clamping member 21 and fastened to the screw holes 22c (FIG. 2) of clamping member 22. Next, bolts 40 (FIG. 5) are inserted into the insertion holes 31c of clamping member 31 and fastened to the screw holes 32c (FIG. 2) of clamping member 32. In this way, the first divided rotating member 50A and the second divided rotating member 50B are fixed to the peripheral surface 60a of the conveying roller 60 by the first clamping member 20 fixed to the first fixed portion 54A and the third fixed portion 54B clamping the peripheral surface 60a of the conveying roller 60 with its inner wall, and by the second clamping member 30 fixed to the second fixed portion 56A and the fourth fixed portion 56B clamping the peripheral surface 60a of the conveying roller 60 with its inner wall.

[0056] [Effects of the second embodiment] (1) According to the rotating body 1 of the second embodiment described above, the first rotating member 50 is divided into a first divided rotating member 50A and a second divided rotating member 50B, and the first divided rotating member 50A and the second divided rotating member 50B each clamp the peripheral surface 60a of the conveying roller 60, thereby enabling the first rotating member 50 to be clamped to the peripheral surface 60a of the conveying roller 60. In other words, there is no need to remove the conveying roller 60 from the conveying direction changing device 100 and insert the conveying roller 60 into the first rotating member 50, and the first rotating member 50 can be attached to the conveying roller 60 while it is still attached to the conveying direction changing device 100. Therefore, the number of steps for mounting the rotating body 1 on the transport roller 60 can be reduced, and the efficiency of the work of mounting the rotating body 1 on the transport roller 60 can be improved.

[0057] (2) Furthermore, according to the rotating body 1 of the second embodiment described above, the first divided rotating member 50A and the second divided rotating member 50B are fixed to the peripheral surface 60a of the conveying roller 60 by the first clamping member 20 fixed to the first fixed portion 54A and the third fixed portion 54B clamping the peripheral surface 60a of the conveying roller 60 with its inner wall, and by the second clamping member 30 fixed to the second fixed portion 56A and the fourth fixed portion 56B clamping the peripheral surface 60a of the conveying roller 60 with its inner wall. In addition, the inner walls 50A1, 50B1 of the first divided rotating member 50A and the second divided rotating member 50B are shaped to match the peripheral surface 60a of the conveying roller 60, and the inner walls of the clamping members 21, 22, 31, 32 of the first clamping member 20 and the second clamping member 30 are also shaped to match the peripheral surface 60a of the conveying roller 60. That is, according to the rotating body 1 of the second embodiment described above, both ends of the first divided rotating member 50A and the second divided rotating member 50B can be fixed to the circumferential surface 60a of the conveying roller 60, thereby further increasing the fixing force to the conveying roller 60. In other words, the clamping force (holding force) of the rotating body 1 to the conveying roller 60 can be further increased. Therefore, according to the rotating body 1 of the second embodiment described above, the fixing force of the rotating body 1 relative to the conveying roller 60 can be further increased, making it even less likely that the fixed position of the rotating body 1 relative to the conveying roller 60 will shift, thereby further improving the accuracy of changing the conveying direction of the object C to be conveyed.

[0058] [Other embodiments] (1) One or both of the first clamping member 20 and the second clamping member 30 may be integrally formed with the first rotating member 50. (2) One ends of the clamping members 21, 22 constituting the first clamping member 20 are pivotally supported, and the other ends can be opened and closed, with the open and closed ends fastened together with a bolt. A similar structure can be used for the second clamping member 30. With this structure, the number of points at which the clamping members need to be fastened together is reduced to one, thereby improving the efficiency of the fastening work. (3) In each of the above-described embodiments, eight second rotating members 10 are arranged on the peripheral surface 51 of the first rotating member 50, but the number of second rotating members 10 arranged can be changed depending on the material and weight of the object C to be transported. (4) The rotating body 1 in each of the above-described embodiments can also be fixed to a conveying roller that does not have a power mechanism for rotating itself.

[0059] (5) In the second embodiment described above, it is also possible to configure the first divided rotating member 50A to have the functions of the clamping members 21 and 31, and the second divided rotating member 50B to have the functions of the clamping members 22 and 32. Specifically, the rotating body 1 is divided into a first divided rotating body and a second divided rotating body along its rotation axis, and the first divided rotating body has a structure in which a portion corresponding to the clamping member 21 is formed at one end of the first divided rotating member 50A and a portion corresponding to the clamping member 31 is formed at the other end of the first divided rotating member 50A. Furthermore, the second divided rotating body has a structure in which a portion corresponding to the clamping member 22 is formed at one end of the second divided rotating member 50B and a portion corresponding to the clamping member 32 is formed at the other end of the second divided rotating member. By using the above-mentioned first and second divided rotating bodies, the labor required to attach the clamping members 21, 31 to the first divided rotating member 50A and the labor required to attach the clamping members 22, 32 to the second divided rotating member 50B can be eliminated, thereby further improving the work efficiency of attaching the rotating body 1 to the peripheral surface 60a of the conveying roller 60. [Explanation of symbols]

[0060] 1 Rotating body 10 Second rotating member 11a First protrusion 11b Second protrusion 11c Third protrusion 20 First clamping member 21 Clamping member 21b Inner wall 22 Clamping member 22b Inner wall 30 Second clamping member 31 Clamping member 31b Inner wall 32 Clamping member 32b inner wall 40 volts 41 volts 50 first rotating member 50A First divided rotating member 50B Second divided rotary member 51 Peripheral surface 52 recess 54 First fixed part 54A First fixed part 54B Third fixing part 56 Second fixed part 56A Second fixed part 56B Fourth fixed part 60 Conveyor roller 60a circumferential surface 100 Conveying direction change device C. Transported object

Claims

1. In a conveying direction changing device that changes the conveying direction of a conveying object, a rotating body is attached to each peripheral surface of a plurality of conveying rollers arranged in parallel, and changes the conveying direction of the conveying object, a first rotating member formed in a cylindrical shape so that the conveying roller is inserted through the center of rotation of the first rotating member; a plurality of second rotating members provided on a circumferential surface of the first rotating member, a plurality of recesses for respectively mounting the plurality of second rotating members are arranged in a circumferential direction on a circumferential surface of the first rotating member; The plurality of second rotating members include: A rotating body characterized in that each of the rotating bodies is rotatably mounted in the recess with its own rotation axis tilted relative to the rotation axis of the first rotating member, and each of the rotating bodies has a protrusion that protrudes from the circumferential surface of the first rotating member and is capable of making line contact with the object to be transported.

2. The protrusion is a first protrusion formed in a cylindrical shape; a second protrusion formed from one end face of the first protrusion and having a truncated cone shape with its top pointing outward; a third protrusion formed from the other end face of the first protrusion and having a truncated cone shape with its apex facing outward, In the second rotary members adjacent to each other, the second protrusion of one second rotary member and the third protrusion of the other second rotary member are close to each other, 2. The rotating body according to claim 1, wherein the first protrusion, the second protrusion, and the third protrusion are each capable of making line contact with the object to be conveyed.

3. Depending on the rotation angle of the rotor, a state in which any one of the first protrusion, the second protrusion, and the third protrusion provided on one second rotating member among the plurality of second rotating members is in line contact with the transport object; a state in which the second protrusion of the one second rotating member and the third protrusion of the other second rotating member are simultaneously in contact with the transport object; 3. The rotating body according to claim 2, wherein the rotating body is in one of the following states:

4. a pair of clamping members for clamping the circumferential surface of the conveying roller; a fixing portion for fixing the set of clamping members is provided on one end surface of the first rotating member, each of the pair of clamping members has an inner wall having a shape that matches the circumferential surface of the conveying roller; The rotating body is A rotating body as described in any one of claims 1 to 3, characterized in that the set of clamping members fixed to the fixed portion are fixed to the peripheral surface of the conveying roller by clamping the peripheral surface of the conveying roller with their own inner walls.

5. a first clamping member having a pair of clamping members for clamping the circumferential surface of the conveying roller; and a second clamping member having a pair of clamping members for clamping the circumferential surface of the conveying roller, a first fixing portion for fixing the first clamping member is provided on one end surface of the first rotating member; a second fixing portion for fixing the second clamping member is provided on the other end surface of the first rotating member, each of the first and second clamping members has an inner wall having a shape that matches the circumferential surface of the conveying roller; The rotating body is A rotating body as described in any one of claims 1 to 3, characterized in that the first clamping member fixed to the first fixed portion clamps the circumferential surface of the conveying roller with its inner wall, and the second clamping member fixed to the second fixed portion clamps the circumferential surface of the conveying roller with its inner wall, thereby being fixed to the circumferential surface of the conveying roller.

6. a gap is formed between opposing portions of the pair of clamping members that clamp the circumferential surface of the conveying roller; One of the pair of clamping members has an insertion hole formed therethrough for inserting a bolt for fastening the clamping members together, 5. The rotating body according to claim 4, wherein the other of the pair of clamping members has a screw hole formed therein for fastening the bolt inserted through the insertion hole.

7. The first rotating member includes: The rotary member is divided into a first divided rotary member and a second divided rotary member along its rotation center, 4. The rotating body according to claim 1, wherein the first divided rotating member and the second divided rotating member are configured to hold the circumferential surface of the conveying roller between them.

8. a first clamping member having a pair of clamping members for clamping the circumferential surface of the conveying roller; and a second clamping member having a pair of clamping members for clamping the circumferential surface of the conveying roller, A first fixing portion for fixing one of the first clamping members is provided on one end surface of the first divided rotary member. 、 a second fixing portion for fixing one of the second clamping members is provided on the other end surface of the first divided rotary member, a third fixing portion for fixing the other end of the first clamping member is provided on one end surface of the second divided rotary member, a fourth fixing portion for fixing the other end of the second clamping member is provided on the other end surface of the second divided rotary member, the first divided rotary member and the second divided rotary member each have an inner wall whose shape matches the circumferential surface of the conveying roller; each of the first and second clamping members has an inner wall having a shape that matches the circumferential surface of the conveying roller; The first divided rotary member and the second divided rotary member are The rotating body described in claim 7, characterized in that the first clamping member fixed to the first fixed portion and the third fixed portion clamps the circumferential surface of the conveying roller with its inner wall, and the second clamping member fixed to the second fixed portion and the fourth fixed portion clamps the circumferential surface of the conveying roller with its inner wall, thereby becoming fixed to the conveying roller.

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