Conveyor

Abstract

To provide a conveyor in which a conveyor body and a leg are further firmly fixed by a support member.SOLUTION: A conveyor comprises a conveyor body, a leg 32, and a support member 43. The leg 32 includes a first leg side face 37 and a second leg side face 38 being a face in a direction crossing the first leg side face 37. The support member 43 includes a first support part 50 having a first end part 50a on one end side and a second end part 50b on the other end side, and a second support part 51 which protrudes in a direction crossing the first support part 50 from the first end part 50a side of the first support part 50. The first end part 50a side of the first support part 50 is rotatably locked to the first leg side face 37 by a locking part 44. The second end part 50b side of the first support part 50 is detachably attached to the conveyor body by an attachment part 45. In a posture where the second end part 50b side of the first support part 50 is attached to the conveyor body by the attachment part 45, the second support part 51 facing the second leg side face 38 is fixed to the second leg side face 38 by a fixing part 46.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a conveyor in which the conveyor body is supported by legs. [Background technology]

[0002] BACKGROUND ART Conventionally, as described in Patent Document 1 below, for example, there is known a conveyor having a structure in which a conveyor body equipped with an endless belt for transporting articles is supported by legs.

[0003] In this conveyor, to facilitate belt replacement or other detachment, a movable support member is provided between the conveyor body and the legs to support the conveyor body on the legs. One end of the support member is rotatably engaged with the legs, and the other end is detachably attached to the conveyor body. The other end of the support member is then detached from the conveyor body and rotated around the one end engaged with the legs, opening the gap between the conveyor body and the legs and allowing the belt to move widthwise for detachment. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-116025 Summary of the Invention [Problem to be solved by the invention]

[0005] In the above-mentioned conveyor, one end of a support member is rotatably engaged with the legs, and the other end is attached to the conveyor body, so that the conveyor body and the legs are fixed by the support member and the conveyor body is supported by the legs.However, it is preferable that the conveyor body and the legs can be fixed more firmly by the support member.

[0006] The problem to be solved by the present invention is to provide a conveyor in which the conveyor body and legs are more firmly fixed by support members. [Means for solving the problem]

[0007] The conveyor of the present invention comprises a conveyor body, a leg having a first leg side surface and a second leg side surface that is a surface intersecting the first leg side surface, a support member having a first support portion having a first end portion on one end side and a second end portion on the other end side, and a second support portion that protrudes from the first end side of the first support portion in a direction intersecting the first support portion, a locking portion that rotatably locks the first end side of the first support portion to the first leg side surface, an attachment portion that detachably attaches the second end side of the first support portion to the conveyor body, and a fixing portion that fixes the second support portion, which faces the second leg side surface, to the second leg side surface in a position where the second end side of the first support portion is attached to the conveyor body by the attachment portion. [Effects of the Invention]

[0008] According to the conveyor of the present invention, the conveyor body and the legs can be more firmly fixed by the support members. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a perspective view of a conveyor showing a first embodiment of the present invention. [Figure 2] FIG. [Figure 3] 1A is a perspective view showing the support member of the conveyor, in which the conveyor body is supported on the legs by the support member, and FIG. 1B is a perspective view showing the conveyor body and the legs being opened by rotating the support member. [Figure 4] 1A and 1B show a support member of the conveyor, in which FIG. 1A is an explanatory diagram showing the relationship between the support member and the legs, and FIG. 1B is an enlarged side view showing the locking and fixing portions that lock and fix the support member and the legs. [Figure 5] FIG. 2 is an exploded perspective view showing a mounting portion for mounting a support member of the conveyor. [Figure 6] FIG. 4 is an enlarged side view showing an engagement groove of a support member of the conveyor. [Figure 7]10A and 10B are side views showing the opening operation of the support member of the conveyor, respectively. [Figure 8] 8A and 8B are side views showing the opening operation of the support member of the conveyor following FIG. 7. [Figure 9] 10A and 10B are side views showing the attachment operation of the support member by the attachment portion of the conveyor, in this order. [Figure 10] FIG. 10 is a perspective view showing a fixing portion of a conveyor according to a second embodiment. [Figure 11] FIG. 10 is a perspective view showing a fixing portion of a conveyor according to a third embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0010] A first embodiment of the present invention will be described below with reference to FIGS.

[0011] Conveyor 10 is shown in Figures 1 and 2. Conveyor 10 is a belt conveyor that includes belt 11, which is an endless body or endless carrier, and rotates belt 11 to place objects on the conveying surface, which is the upper surface of belt 11, and convey them in the conveying direction. Figures 1 and 2 show a short-length belt conveyor in which the length in the machine length direction, which is the conveying direction, is shorter than the width direction of the conveying surface of belt 11. Note that conveyor 10 is not limited to a belt conveyor using belt 11, and may be configured using an endless body or endless carrier that is rotatable and has an endless shape, such as a chain.

[0012] The conveyor 10 includes a belt 11, a conveyor body 12 on which the belt 11 is arranged so as to be rotatable, a drive unit 13 that drives the belt 11 to rotate, and a leg device 14 that supports the conveyor body 12.

[0013] The belt 11 is an endless flat belt, and the portion that runs along the upper surface of the conveyor body 12 is configured as a conveying surface on which articles are placed and conveyed.

[0014] The conveyor body 12 comprises a conveying surface frame 18 that supports and guides the underside of the conveying surface of the belt 11, a side frame 19 on one side that is a support plate attached to one side of the conveying surface frame 18 in the width direction, a side frame 20 on the other side that is attached to the other side of the conveying surface frame 18 in the width direction, and a plurality of pulleys 21 that tension the belt 11 so that it can rotate.

[0015] The side frames 19, 20 protrude below the conveying surface frame 18 and are supported by the leg device 14. The outer surface of one side frame 19 forms the conveyor body side surface 12a of the conveyor body 12.

[0016] The pulleys 21 include end pulleys 22 arranged on both ends of the conveyor body 12 in the longitudinal direction on the upper surface side, bend pulleys 23 arranged below the end pulleys 22, a drive pulley 24 supported between the side frames 19, 20 on both sides, and a pair of take-up pulleys 25.

[0017] Both ends of the end pulley 22 and the bend pulley 23 are integrally supported by a pulley support 26. The pulley support 26 is rotatably attached to the conveying surface frame 18, and is fixed by a knob 27 that allows the end pulley 22 and the bend pulley 23 to be disposed at both ends of the conveying surface frame 18 in the machine length direction, imparting tension to the belt 11 and forming a conveying surface. Furthermore, the pulley support 26 becomes rotatable relative to the conveying surface frame 18 by loosening the knob 27, and the belt 11 can be loosened by rotating the end pulley 22 and the bend pulley 23 above the conveying surface frame 18.

[0018] The end pulley 22, bend pulley 23, and drive pulley 24 of pulley 21 guide belt 11 as it rotates while contacting the inner peripheral surface of belt 11, and the pair of take-up pulleys 25 of pulley 21 guide belt 11 as it rotates while contacting the outer peripheral surface of belt 11 between bend pulley 23 and drive pulley 24, and these pulleys 21 tension belt 11 so that it can rotate. The pair of take-up pulleys 25 are configured to be detachable between the side frames 19, 20 on both sides when the end pulley 22 and bend pulley 23 are rotated above the conveying surface frame 18 to loosen belt 11.

[0019] The drive unit 13 uses a motor and is attached to the other side frame 20. A transmission mechanism is disposed within the other side frame 20, which transmits the driving force from the drive unit 13 to the drive pulley 24 to rotate it. The transmission mechanism includes, for example, a drive gear attached to the drive shaft of the motor, a driven gear attached to the rotation shaft of the drive pulley 24, and a chain wound around the drive gear and driven gear. Note that the transmission mechanism may also be, for example, a transmission mechanism using a pulley and a belt, or a transmission mechanism using multiple gears.

[0020] The leg device 14 also includes an installation frame 31 installed on the floor, one leg 32 erected from one widthwise side of the installation frame 31, and another leg 33 erected from the other widthwise side of the installation frame 31. The leg device 14 supports one widthwise side of the conveyor body 12 with the leg 32, and supports the other widthwise side of the conveyor body 12 with the leg 32. In other words, the leg device 14 supports both widthwise sides of the short-length conveyor body 12 with one leg 32, 33 on each side. The other leg 33 is shared with the side frame 20 on the other side of the conveyor body 12.

[0021] 1 and 3, one leg 32 has a substantially rectangular horizontal cross section and includes a first leg side surface 37 facing the outer side in the width direction, and second leg side surfaces 38 which are surfaces on both sides facing in the aircraft length direction, i.e., surfaces intersecting the first leg side surface 37. The upper surface of the leg 32 is formed with an inclined surface 39 which slopes downward from the first leg side surface 37 on the outer side toward the opposite inner side surface.

[0022] The first leg side surface 37 of the leg 32 is disposed substantially parallel to the conveyor body side surface 12a, which is the outer surface of the side frame 19 on one side of the conveyor body 12, and is disposed so as to be substantially flush in the vertical direction.

[0023] Between the upper ends of the legs 32 and the lower ends of the side frames 19 on one side of the conveyor body 12, an opening 40 is formed to allow the belt 11 to be attached or detached from one side of the conveyor body 12 while the other widthwise side of the conveyor body 12 remains supported by the other leg 33 of the leg device 14. That is, with the end pulley 22 and the bend pulley 23 rotated (or removed) to the upper region of the conveying surface frame 18 to loosen the belt 11 and with the pair of take-up pulleys 25 removed, the belt 11 can be moved widthwise from one side of the conveyor body 12, including the opening 40 on the lower side of the side frames 19, to be removed or attached. Note that, if an undercover (not shown) is installed to cover the drive pulley 24 and take-up pulley 25 from the outside, the undercover must first be removed.

[0024] The leg device 14 also includes a support member 43 for supporting the side frame 19 of the conveyor body 12, through which the open portion 40 is interposed, on the leg 32. The leg device 14 also includes a locking portion 44 for rotatably locking one end of the support member 43 to the first leg side surface 37, an attachment portion 45 for attaching the other end of the support member 43 to the side frame 19 of the conveyor body 12, and a fixing portion 46 for fixing the support member 43 to the second leg side surface 38 in a position where the support member 43 is attached to the side frame 19 of the conveyor body 12 by the attachment portion 45. The support member 43 is rotatable between a support position in which the side frame 19 of the conveyor body 12 is supported on the leg 32 by closing the open portion 40, as shown in FIG. 3(a), and an open position in which the support member 43 is rotated approximately 180° from the support position to open the open portion 40, as shown in FIG. 3(b).

[0025] The support member 43 has a long, flat first support portion 50 and a second support portion 51 bent at approximately a right angle from the first end portion 50a on one end side of the longitudinal direction of the first support portion 50 so as to protrude in a direction intersecting the first support portion 50.

[0026] The first support portion 50 is formed with a length longer than the distance between the open portion 40 between the upper end of the leg 32 and the lower end of the side frame 19 on one side of the conveyor body 12, and with a width smaller than the width of the first leg side surface 37 of the leg 32.

[0027] An elongated hole 52, which is an engagement hole that is engaged with the engagement portion 44, is formed on the first end portion 50a side of the first support portion 50. The elongated hole 52 is formed long in the longitudinal direction of the first support portion 50, which is a direction that connects the first end portion 50a side on one end side of the first support portion 50 to the second end portion 50b side on the other end side.

[0028] An engagement groove 53 that can engage with the attachment portion 45 is formed on the second end 50b side of the first support portion 50. As shown in FIG. 4(a), the engagement groove 53 has an arc shape centered on the rotation fulcrum O of the first support portion 50, and is open to one side in the rotation direction of the first support portion 50. In other words, the engagement groove 53 is formed in a concave shape from the end face on one side of the first support portion 50 toward the movement direction in which the first support portion 50 opens the opening portion 40, and therefore can be engaged with and disengaged from the attachment portion 45 by the rotation of the support member 43.

[0029] The pivot point O of the first support part 50 is the center of the arc on one end 52a side of the long hole 52 that engages with the circumferential surface of the locking part 44, and coincides with the center of the locking part 44 at the position of the first support part 50 where one end 52a side of the long hole 52 engages with the circumferential surface of the locking part 44.

[0030] As shown in Figure 5, a tapered chamfered portion 54 is formed on the inner edge of the engagement groove 53, which is inclined so that the groove width of the engagement groove 53 expands toward one side in the thickness direction facing the conveyor body 12.

[0031] As shown in Figure 6, at the inner edge of the small diameter side of the engagement groove 53, at the rear position opposite the opening side, an arc-shaped recess 55 is formed into which the underside of the mounting portion 45 (the peripheral surface of the engagement portion 68 of the engagement member 66 provided on the mounting portion 45) fits and engages when the support member 43 is rotated to the support posture.

[0032] The support member 43 supports one side of the conveyor body 12 at an appropriate height position with one end 52a of the elongated hole 52 of the first support part 50 engaged with the locking part 44 and the underside of the attachment part 45 (the peripheral surface of the engagement part 68 of the engagement member 66 provided on the attachment part 45) fitting into and engaging with the recessed part 55. The inner edge part on the small diameter side of the engagement groove 53 is higher on the opening side than the recessed part 55, and is formed as a guide part 53a that guides one side of the conveyor body 12 to a position higher than the appropriate height position.

[0033] As shown in Figures 4(a) and 4(b) (Figure 4(b) is an enlarged side view of Figure 4(a)), the second support part 51 extends from one side closest to the end of the first end part 50a of the first support part 50, and is bent at a substantially right angle from the first support part 50 toward the leg 32. A fixing hole 56 is provided in the center of the second support part 51.

[0034] The second support portion 51 is positioned closer to the end of the first end 50a of the first support portion 50 than the rotation fulcrum O of the first support portion 50, which is rotatably locked by the locking portion 44, and is provided at a position a distance L2 that is farther away than the distance L1 from the rotation fulcrum O to the upper end of the leg 32 facing the conveyor body 12. Due to this dimensional relationship, even when the support member 43 rotates around the rotation fulcrum O, the second support portion 51 can rotate without interfering with the upper end of the leg 32.

[0035] The locking portion 44 is positioned at the center in the width direction of the first leg side surface 37, and rotatably locks the first end portion 50a side of the first support portion 50 to the first leg side surface 37. The locking portion 44 has a bolt 59, and an annular locking plate 60, a cylindrical locking member 61, and an annular locking plate 62 that are inserted in this order into the threaded portion of the bolt 59.

[0036] The locking member 61 is inserted into the elongated hole 52 of the first support part 50. The locking plates 60, 62 are arranged to face both side surfaces of the first support part 50 through which the locking member 61 is inserted. The locking plates 60, 62 are provided with a diameter larger than the width in a direction intersecting the longitudinal direction of the elongated hole 52, and can abut against both side surfaces of the first support part 50, respectively, to lock the first support part 50 so that it does not come off.

[0037] With the locking plates 60, 62 and locking member 61 combined with the first support part 50 on the threaded portion of the bolt 59, the bolt 59 is screwed into a screw hole provided on the first leg side surface 37, and the locking plate 60, locking member 61 and locking plate 62 are tightened and fixed between the head of the bolt 59 and the first leg side surface 37.

[0038] The axial length of the locking member 61 and the opposing distance between the locking plates 60, 62 are greater than the thickness of the first support part 50, allowing the first support part 50 to rotate relative to the locking part 44 and move along the longitudinal direction of the long hole 52.

[0039] In addition, in the locking portion 44, a flanged bolt may be used instead of the bolt 59 and the locking plate 60.

[0040] As shown in FIG. 5, the mounting portion 45 has an engaging member 66 attached to the side frame 19 and an attachment operation member 67 attached to the engaging member 66.

[0041] The engaging member 66 is a shaft body and has an engaging portion 68 formed in a cylindrical shape at the middle in the axial direction, a threaded portion 69 which is a male screw formed at one end in the axial direction, and a threaded portion 70 which is a male screw formed at the other end in the axial direction. The threaded portion 69 at one end is screwed into a threaded hole provided in the side frame 19, and the engaging portion 68 is fixed in a state of abutting against the conveyor main body side surface 12a which is the outer surface side of the side frame 19. Therefore, the engaging portion 68 and the threaded portion 70 protrude from the conveyor main body side surface 12a which is the outer surface side of the side frame 19.

[0042] The mounting operation member 67 is configured as a knob that can be rotated. A female-threaded screw hole 71 that screws into the threaded portion 70 of the engagement member 66 is formed in the center of the mounting operation member 67 and penetrates the mounting operation member 67 in the axial direction. The mounting operation member 67 has a cylindrical pressing portion 72 at one end that can abut against the outer surface of the first support portion 50, and an operating portion 73 at the other end of the pressing portion 72 that has a larger diameter than the pressing portion 72. A knurling is formed on the periphery of the operating portion 73 to prevent slipping. When the mounting operation member 67 is screwed onto the threaded portion 70, the first support portion 50 is sandwiched between the pressing portion 72 and the side frame 19, completing the mounting. At this time, the pressing portion 72 presses the first support portion 50 against the side frame 19.

[0043] As shown in FIG. 3 , the fixing portion 46 includes a fixing operation member 77 that is attached to the second leg side surface 38 through the second support portion 51 and fixes the second support portion 51 of the support member 43 to the second leg side surface 38 of the leg 32. The fixing operation member 77 is configured as a knob that can be rotated. The fixing operation member 77 includes a cylindrical pressing portion 78 on one end, an operating portion 79 on the other end of the pressing portion 78 that has a larger diameter than the pressing portion 78, and a threaded portion 80 that protrudes from the end surface of the one end of the pressing portion 78. The peripheral surface of the operating portion 79 is knurled to prevent slipping. The threaded portion 80 of the fixing operation member 77 is threadedly engaged with a threaded hole 81 on the second leg side surface 38 on one side of the leg 32 through the fixing hole 56 of the second support portion 51, thereby sandwiching the second support portion 51 between the pressing portion 78 and the second leg side surface 38 and fixing the second support portion 51. At this time, the second support portion 51 is pressed against the second leg side surface 38 by the pressing portion 78.

[0044] Next, the operation of the conveyor 10 will be described.

[0045] As shown in FIG. 1, in the assembled or usable state of the conveyor 10, the conveyor body 12 is supported on the legs 32 by the support members 43 in the supporting position.

[0046] As shown in Figure 3(a), when the support member 43 is in the supporting position, one end 52a of the long hole 52 of the first support part 50 is engaged with the locking part 44 so that the support member 43 is supported on the first leg side surface 37 of the leg 32, the engagement groove 53 of the first support part 50 is engaged with the engagement member 66 of the mounting part 45 and is attached to the outer surface of the side frame 19 by the mounting operation member 67, the second support part 51 faces the second leg side surface 38 of the leg 32, and the second support part 51 is fixed to the second leg side surface 38 by the fixing operation member 77.

[0047] The support member 43 in the support position is fixed with the side surface of the second support portion 51 in surface contact with the second leg side surface 38 of the leg 32, so that rotation of the support member 43 is restricted from two positions, that is, a position parallel to the rotation axis direction and a position intersecting the rotation axis direction, and the support member 43 is corrected to an appropriate support position with respect to the leg 32, and the longitudinal direction of the first support portion 50 coincides with the vertical direction, which is the longitudinal direction of the leg 32, and is integrated with the leg 32. Therefore, the support member 43 is fixed to the leg 32 from two directions so that movement of the support member 43 relative to the leg 32, including movement in the rotation direction of the support member 43 around the locking portion 44 relative to the leg 32 and movement of the support member 43 in the direction facing the first leg side surface 37 of the leg 32, is restricted, and the conveyor body 12 and the leg 32 are more firmly fixed by this support member 43.

[0048] For example, even if the fixing operation member 77 is fixed to the first leg side surface 37 through an insertion hole provided closer to the tip of the first end 50a than the elongated hole 52 of the first support part 50, the support member 43 can be fixed to the leg 32, but there is play between the fixing operation member 77 and the insertion hole of the first support part 50, so there is a risk that the support member 43 may shift or swing in the aircraft longitudinal direction. In contrast, with a configuration in which the fixing operation member 77 fixes the second support part 51 to the second leg side surface 38 of the leg 32, the support member 43 is prevented from shifting or swinging in the aircraft longitudinal direction.

[0049] Therefore, even in the case of conveyor 10 in which both sides of the width of conveyor body 12 are supported by legs 32 and 33 on each side as shown in FIG. 1, support member 43 having second support portion 51 is firmly fixed to leg 32, thereby more firmly fixing conveyor body 12 and leg 32.

[0050] Also, as shown in Figure 6, when the engagement groove 53 of the first support portion 50 engages with the engagement portion 68 of the engagement member 66 of the mounting portion 45, the engagement portion 68 of the engagement member 66 fits into the recess 55 provided on the inner edge portion of the small diameter side of the engagement groove 53, and the load of the conveyor body 12 acts in the direction in which the engagement portion 68 of the engagement member 66 fits into the recess 55, maintaining the fitted state.

[0051] As shown in FIGS. 1 and 2, in conveyor 10, belt 11 is driven by drive unit 13 to rotate, and articles placed on the conveying surface in the upper surface area of ​​belt 11 are conveyed in the conveying direction.

[0052] Next, we will explain the work of removing and attaching the belt 11 to the conveyor body 12 when removing the belt 11 from the conveyor body 12 for cleaning, or when replacing the belt 11 due to damage or deterioration.

[0053] When removing the belt 11, the end pulleys 22 and bend pulleys 23 at both ends of the conveyor body 12 in the longitudinal direction are rotated (or removed) above the conveying surface frame 18 to loosen the belt 11 and remove the pair of take-up pulleys 25.

[0054] 7(a), the fixing operation member 77 of the fixing portion 46 is rotated in the loosening direction to remove it from the leg 32 and the second support portion 51 of the support member 43. Furthermore, the attachment operation member 67 of the mounting portion 45 is rotated in the loosening direction to release the attachment of the first support portion 50 of the support member 43 to the side frame 19.

[0055] As shown by the solid arrow in Figure 7(b), the support member 43 is rotated counterclockwise around the rotation fulcrum O of the first support part 50 locked by the locking part 44, in the direction in which the engagement groove 53 disengages from the mounting part 45. At this time, the second support part 51 of the support member 43 moves through the opening 40 between the conveyor body 12 and the leg 32 from the side of the second leg side surface 38 on one side of the leg 32 toward the side of the second leg side surface 38 on the opposite side.

[0056] 8(a), the first support part 50 is rotated approximately 180° so that the orientations of the first end part 50a and the second end part 50b of the first support part 50 are reversed in the up-down direction to assume the open position. In this state, the second support part 51 is disposed in a position where it can descend to the outer region of the second leg side surface 38 on the other side of the leg 32.

[0057] As shown by the solid arrow in Figure 8(b), the support member 43 is lowered relative to the locking portion 44 by the elongated hole 52 of the first support portion 50, and the other end 52b of the elongated hole 52 is locked with the locking portion 44. In this state, the second support portion 51 faces the second leg side surface 38 on the other side of the leg 32, and the first end 50a of the first support portion 50 including the second support portion 51 moves in a direction away from the conveyor body 12. In this case, it is preferable that the upper end of the leg 32 moves to a position where it does not protrude into the open portion 40 on the conveyor body 12 side.

[0058] By moving the support member 43 from the support position to the open position, the opening 40 between the conveyor body 12 and the leg 32 is opened.

[0059] Then, while passing the lower portion of the loosened belt 11 through the opening 40, the belt 11 is moved in the width direction and removed from one side of the conveyor body 12, completing the removal work of the belt 11.

[0060] At this time, because the second support portion 51 faces the second leg side surface 38 on the other side of the leg 32, the movement of the support member 43 in the rotation direction around the locking portion 44 is restricted, and the support member 43 in the open position does not interfere with the attachment and detachment of the belt 11. Note that here, the second support portion 51 facing the second leg side surface 38 on the other side of the leg 32 may be fixed to the second leg side surface 38 on the other side by the fixing operation member 77 that was removed.

[0061] On the other hand, to attach a cleaned or replaced belt 11 to the conveyor body 12, the belt 11 is moved widthwise from one side of the conveyor body 12 while passing the lower portion of the belt 11 through the opening 40, and then positioned around the conveyor body 12. After that, if the end pulley 22 and bend pulley 23 were removed, they are attached to the conveyor body 12 facing upward, and then the removed take-up pulley 25 is attached to the conveyor body 12. If an undercover needs to be attached, it should be attached at this time.

[0062] As shown by the dashed arrow in Fig. 8(b), the support member 43 is raised to move the second support portion 51 above the leg 32, and one end 52a of the elongated hole 52 is engaged with the locking portion 44 as shown in Fig. 8(a). As shown by the dashed arrow in Fig. 7(b), the support member 43 is rotated clockwise around the rotation fulcrum O of the first support portion 50 locked by the locking portion 44, in a direction in which the opening side of the engagement groove 53 rotates toward the mounting portion 45. At this time, the second support portion 51 of the support member 43 moves from the side of the second leg side surface 38 on the other side of the leg 32 toward the side of the second leg side surface 38 on the opposite side through the opening 40 between the conveyor body 12 and the leg 32.

[0063] As shown in Figure 7(a), the engagement groove 53 of the support member 43 is engaged with the mounting portion 45, and the first end 50a and the second end 50b of the first support portion 50 are rotated approximately 180° so that the orientations of the first end 50a and the second end 50b are reversed in the vertical direction relative to the open posture to assume the support posture.

[0064] At this time, the conveyor body 12 is in a cantilevered state by the other leg 33, and one side of the conveyor body 12 may be slightly lowered. In this case, one side of the conveyor body 12 is slightly lifted to engage the engagement groove 53 with the mounting portion 45.

[0065] The second support portion 51 of the support member 43 rotated to the support posture faces the second leg side surface 38 on one side of the leg 32, and the fixing operation member 77 is screwed into the second leg side surface 38 of the leg 32 through this second support portion 51. As shown by the dashed arrow in Figure 7(a), the fixing operation member 77 is rotated in the tightening direction to fix the second support portion 51 to the second leg side surface 38 of the leg 32. As a result, even if the support member 43 is slightly tilted with respect to the leg 32, it can be corrected and fixed to an appropriate support posture in which the longitudinal direction of the first support portion 50 coincides with the vertical direction, which is the longitudinal direction of the leg 32.

[0066] As shown by the dashed arrow in FIG. 7( a ), the mounting operation member 67 is tightened to mount the first support portion 50 to the side frame 19 .

[0067] At this time, as shown in Figure 9(a), if the mounting operation member 67 is loosened significantly, the first support portion 50 may tilt relative to the locking portion 44, causing the second end portion 50b to shift away from the conveyor body 12, resulting in the engagement groove 53 not engaging with the engagement portion 68 of the engagement member 66. Furthermore, the conveyor body 12 may be cantilevered by the other leg 33, causing one side of the conveyor body 12 to be slightly lowered. In such a case, if the engagement groove 53 does not have the chamfered portion 54, rotating the mounting operation member 67 in the tightening direction may cause the surface of the first support portion 50 around the engagement groove 53 to abut against the end face of the engagement portion 68, resulting in the engagement groove 53 not engaging with the engagement portion 68, or it may be difficult to engage the engagement groove 53 with the engagement portion 68. On the other hand, if the engagement groove 53 has a chamfered portion 54, as shown in Figures 9(a) and (b), by rotating the mounting operation member 67 in the tightening direction, the chamfered portion 54 of the engagement groove 53 will abut against the engagement portion 68, and the engagement groove 53 can be engaged with the engagement portion 68 through the chamfered portion 54.

[0068] Thereafter, the end pulleys 22 and bend pulleys 23 at both ends, which had been rotated upward on the conveying surface frame 18, are returned to the lower side of the conveyor body 12 in the longitudinal direction, tension is applied to the belt 11, and the installation work of the belt 11 is completed.

[0069] In this way, in the conveyor 10 of this embodiment, the second support portion 51 of the support member 43 is fixed to the second leg side surface 38 of the leg 32, so that the support member 43 can be firmly fixed to the leg 32 so as to suppress movement of the support member 43 relative to the leg 32, including movement of the support member 43 in the rotational direction around the engaging portion 44 relative to the leg 32 and movement of the support member 43 in the direction opposite the first leg side surface 37 of the leg 32, and the support member 43 can more firmly fix the conveyor body 12 and the leg 32.

[0070] Furthermore, when the engagement groove 53 of the first support part 50 is engaged with the mounting part 45, the engagement member 66 fits into the recess 55 provided on the inner edge part on the small diameter side of the engagement groove 53, and the load of the conveyor body 12 acts in the direction in which the engagement member 66 fits into the recess 55, maintaining the fitted state.Therefore, the mounting part 45 can attach the support member 43 to a position with an appropriate support posture, and the engagement groove 53 can be prevented from shifting or coming off from the mounting part 45.

[0071] Furthermore, when the support member 43 is rotated, the second support portion 51 of the support member 43 moves through the open portion 40 between the conveyor body 12 and the leg 32, so that the second support portion 51 does not hinder the rotation of the support member 43, and the first support portion 50 can be rotated so that the orientations of the first end 50a side and the second end 50b side are reversed.

[0072] Furthermore, since the second support portion 51 of the support member 43 is provided on one side of the first support portion 50, which is the same as the opening side of the engagement groove 53 of the first support portion 50, the second support portion 51 can be fixed to the second leg side surface 38 while allowing the support member 43 to be engaged and disengaged with the mounting portion 45.

[0073] In addition, the fixing portion 46 fixes the second support portion 51 to the second leg side surface 38 by a fixing operating member 77 that is inserted through the second support portion 51 and screwed into the second leg side surface 38 of the leg 32, so that the support member 43 can be firmly fixed to the leg 32 with a small number of parts.

[0074] In addition, when the support member 43 is released from the mounting portion 45 and rotated toward the leg 32 in the open position, the long hole 52 causes the first end 50a of the first support portion 50 including the second support portion 51 to move in a direction away from the conveyor body 12, and preferably to a position where it does not protrude from the upper end of the leg 32 into the open portion 40 on the conveyor body 12 side.This allows the open portion 40 to be opened widely, prevents the belt 11 being attached or detached from getting caught on the support member 43, and improves the ease of attaching and detaching the belt 11.

[0075] The support member 43 may be configured to be rotatable by simply loosening the fixing operation member 77 without removing it from the second leg side surface 38 of the leg 32 .

[0076] For example, by making the fixing hole 56 of the second support part 51 of the support member 43 into a groove shape that opens toward the end face side of the first end part 50a, the support member 43 can be configured to be able to rotate simply by loosening the fixing operating member 77 without removing it from the second leg side surface 38 of the leg 32.

[0077] Furthermore, as shown in the second embodiment in Figure 10, the fixing portion 46 may have a fixing member 90 that can be moved between a fixed position where the second support portion 51 is fixed to the second leg side surface 38 and an unlocked position where the second support portion 51 is unlocked, and a fixing operation member 77 that is screwed into the second leg side surface 38 and fixes the second support portion 51 to the second leg side surface 38 via the fixing member 90 in the fixed position, so that the support member 43 can be rotated simply by loosening the fixing operation member 77 without removing it from the second leg side surface 38 of the leg 32.

[0078] The fixing member 90 is a flat plate with an elongated hole 91 formed in the center, through which the screw portion 80 of the fixing member 90 is inserted. The fixing member 90 slides up and down relative to the fixing operation member 77 via the elongated hole 91, and moves between a fixed position and an unlocked position.

[0079] The fixing operation member 77 is screwed into the second leg side surface 38 of the leg 32 through the elongated hole 91 of the fixing member 90. A spacer 92 having approximately the same thickness as the plate thickness of the second support part 51 is interposed between the fixing member 90 and the second leg side surface 38, and the fixing operation member 77 passes through this spacer 92.

[0080] Then, the fixing member 90 is moved to an upper fixing position, and with the upper side of the fixing member 90 positioned outside the second support part 51, the fixing operating member 77 is rotated in the tightening direction, thereby fixing the second support part 51 to the second leg side surface 38 via the fixing member 90 in the fixed position.

[0081] On the other hand, by rotating the fixing operation member 77 in the direction of loosening, the fixing member 90 is lowered to the fixed unlocking position by the long hole 91 and disengaged below the second support part 51, thereby allowing the support member 43 to rotate.

[0082] The fixing operation member 77 only needs to be loosened, without being removed, so there is no need to take the time to find a place to store or manage the fixing operation member 77 when it is removed, and there is no risk of the fixing operation member 77 being lost.

[0083] The fixing member 90 may be configured to have a circular hole instead of the elongated hole 91, and to rotate around the fixing operation member 77 when the fixing operation member 77 is loosened, and move between the fixed position and the unlocked position.

[0084] Furthermore, as shown in a third embodiment in FIG. 11, the fixing member 90 may have a bent portion 95 that can engage with the surface of the leg 32 opposite to the first leg side surface 37.

[0085] Because the fixing member 90 has a bent portion 95, the fixing member 90 can be guided to slide up and down between the fixed position and the unlocked position, and when moved to the fixed position, the positional relationship between the fixing member 90 and the second support portion 51 can be kept constant, and the second support portion 51 can be securely fixed to the second leg side surface 38.

[0086] The fixing operation member 77 may be arranged so as to be screwed onto the second leg side surface 38 via the fixing member 90 above the second support portion 51 facing the second leg side surface 38. In this case, the fixing position of the fixing member 90 is the lowered position, and the unlocked position is the raised position, so even if the fixing operation member 77 loosens, the fixing member 90 maintains the fixed position, preventing the support member 43 from rotating. In this case, the relationship between the arrangement and dimensions of each component can prevent the second support portion 51 from hitting the fixing operation member 77 when the support member 43 is rotated.

[0087] Although the embodiment of the present invention and its modified examples have been described above, various combinations of configurations, partial omissions, substitutions and modifications are also possible. [Explanation of symbols]

[0088] 10 Conveyor 12 Conveyor body 32 legs 37 1st leg side 38 Second leg side 43 Support member 44 Locking part 45 Mounting part 46 Fixed part 50 1st support part 50a First end 50b 2nd end 51 Second support part 52 long hole 52a One end 52b Other end 53 Engagement groove 54 Chamfered part 55 recess 66 Engagement member 67 Mounting operation member 77 Fixed operating member 90 Fixing member O Rotational fulcrum

Claims

1. A conveyor body; a leg having a first leg side surface and a second leg side surface that is a surface in a direction intersecting the first leg side surface; a support member having a first support portion having a first end portion on one end side and a second end portion on the other end side, and a second support portion protruding from the first end side of the first support portion in a direction intersecting with the first support portion; a locking portion that rotatably locks the first end side of the first support portion to a side surface of the first leg; a mounting portion that detachably mounts the second end portion of the first support portion to the conveyor body; a fixing portion that fixes the second support portion, which faces the second leg side surface, to the second leg side surface in a posture in which the second end side of the first support portion is attached to the conveyor body by the attachment portion; A conveyor comprising:

2. The support member rotates such that the second support portion moves between the conveyor body and the leg, and the orientation of the first end side and the second end side of the first support portion is reversed.

2. The conveyor of claim 1.

3. the support member has an engagement groove on the second end side of the first support portion, the engagement groove having an arc shape centered on a rotation fulcrum of the first support portion rotatably engaged by the engaging portion, the engagement groove opening to one side in a rotation direction of the first support portion, and the engagement groove being engaged with and disengaged from the attachment portion by rotation of the support member; The second support portion is provided on the same side of the first support portion as the opening side of the engagement groove.

3. A conveyor according to claim 1 or 2.

4. the attachment portion includes an engagement member attached to the conveyor body and engaging with the engagement groove of the first support portion; and an attachment operation member attached to the engagement member and attaching the first support portion to the conveyor body, The support member has a chamfered portion on the inner edge of the engagement groove on the side facing the conveyor body.

4. The conveyor of claim 3.

5. The support member has a recessed portion on the inner edge of the small diameter side of the engagement groove, with which the circumferential surface of the engagement member engages.

5. The conveyor of claim 4.

6. The fixing portion has a fixing operation member that is inserted through the second support portion and attached to a side surface of the second leg, and that fixes the second support portion to the side surface of the second leg.

6. A conveyor according to any one of claims 1 to 5.

7. The fixing portion includes a fixing member that is movable between a fixing position where the second support portion is fixed to the side surface of the second leg and a fixing release position where the fixing of the second support portion is released, and a fixing operation member that is attached to the side surface of the second leg and fixes the second support portion to the side surface of the second leg via the fixing member at the fixing position.

6. A conveyor according to any one of claims 1 to 5.

8. The second support portion is positioned closer to the end of the first end of the first support portion than a pivot point of the first support portion that is rotatably locked by the locking portion, and is positioned at a distance greater than a distance from the pivot point to an end of the leg that faces the conveyor body.

8. A conveyor according to any one of claims 1 to 7.

9. the support member has a slot that is long in a direction connecting the first end side and the second end side of the first support portion, the locking portion locks the first support portion through the elongated hole so as to be rotatable and movable in the longitudinal direction of the elongated hole; In a posture in which the second end side of the first support portion is attached to the conveyor body by the attachment portion, one end side of the elongated hole is engaged with the engaging portion, and the second support portion faces the second leg side surface on one side of the leg, When the second end of the first support portion is released from the mounting portion and rotated toward the leg, and the first end of the support member including the second support portion moves in a direction away from the conveyor body due to the long hole, the other end of the long hole is locked to the locking portion, and the second support portion faces the other second leg side surface opposite to the second leg side surface on one side of the leg. A conveyor according to any one of claims 1 to 8.

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