JP2005330052A - Free curve conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a free curve conveyor with an easily replaceable endless body. <P>SOLUTION: This free curve conveyor 1 is provided with a one side expansion and contraction body 6 and another side expansion and contraction body 7 which are separated from each other and facing mutually. A rotary body 11 for conveyance is arranged between the one side expansion and contraction body 6 and the other side expansion and contraction body 7. A one side supporting body 22 having a fitted hole part is fixed to the one side expansion and contraction body 6, and an other side supporting body 32 having a cut-out part opened in an opening part is fixed to the other side expansion and contraction body 7. A one end part in the axial direction of a rotary body 41 for transmission is fitted into the fitted hole part of the one side supporting body 22, and another end part in the axial direction of the rotary body 41 for transmission is inserted into the cut-out part of the other side supporting body 32 and is made to abut on the cut-out part based on energization by the endless body 46. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a free curve conveyor capable of facilitating endless body replacement work.

Conventionally, for example, one side elastic body and the other side elastic body that are positioned so as to face each other, and a transfer rotator (carrier roller unit) and a transmission rotator that are respectively positioned between the one side elastic body and the other side elastic body. (Counter roller unit) and an endless body spanned between the conveying rotator and the transmission rotator, and each rotator is mounted between the telescopic members via bolts and nuts. Is known (see, for example, Patent Document 1).
Japanese Examined Patent Publication No. 62-16887

  However, in the above conventional free-curve conveyor, each rotating body is pivoted between both expansion / contraction bodies via bolts and nuts. For example, when replacing an endless body, a bolt is used for each rotating body using a tool. In addition, the nut must be removed, and there is a risk of troublesome replacement work.

  This invention is made | formed in view of such a point, and it aims at providing the free curve conveyor which can aim at the easy replacement | exchange operation | work of an endless body.

  The free-curve conveyor according to claim 1, wherein the one-side stretchable body and the other-side stretchable body that are spaced apart from each other, the transfer rotating body located between the one-side stretchable body and the other-side stretchable body, One side support provided on the side stretchable body and having a fitting portion, the other side support provided on the other side stretchable body and having a notch opened at the opening, the one side support and the other A transmission rotator positioned between the side supports, the transfer rotator, and an endless body spanned over the transmission rotator, wherein one end in the axial direction of the transmission rotator is the one side The other end in the axial direction of the transmission rotating body is inserted into the notched portion of the support rotating body, and the transmission rotating body is removed when the transmission rotating body is removed. The other end in the axial direction of the rotating body for transmission is passed through the opening from the notch of the other side support. After issuing, in which issue one axial end of the transmission rotary member from the object insertion portion of the one side support.

  Then, after the other end in the axial direction of the transmission rotator is taken out from the notch of the other side support through the opening, the one end in the axial direction of the transmission rotator is taken out from the fitted portion of the one side support. Thus, the transmission rotating body can be removed, so that the transmission rotating body can be easily removed, and the replacement work of the endless body can be facilitated.

  The free-curve conveyor according to claim 2, wherein the one-side stretchable body and the other-side stretchable body that are spaced apart from each other, the transfer rotary body located between the one-side stretchable body and the other-side stretchable body, One side support having a cutout portion provided in the side stretchable body and opening at the opening, the other side support having a cutout portion provided in the other side stretchable body and opening at the opening, and the one side support A transmission rotator positioned between the body and the other side support, and an endless body spanned between the transport rotator and the transmission rotator, and one axial end of the transmission rotator is The other end in the axial direction of the transmission rotating body is inserted into the notch of the other side support, and the transmission rotating body is removed when inserted into the notch of the one side support. The one end in the axial direction of the transmission rotating body is moved away from the cutout portion of the one-side support. It is intended to issue the other axial end portion of the transmission rotary member with out through the mouth from the notch of the other side support through the opening.

  Then, one axial end portion of the transmission rotor is taken out from the cutout portion of the one side support body through the opening portion, and the other axial end portion of the transmission rotation body is extended from the cutout portion of the other side support body through the opening portion. Since the transmission rotating body can be removed by removing the transmission, the transmission rotating body can be easily removed, and the endless body can be easily replaced.

  The free-curve conveyor according to claim 3 is the free-curve conveyor according to claim 1 or 2, wherein the one-side support is an adjacent transport rotator when the length of the one-side stretchable body is set to the minimum. A stopper portion that holds a gap in between is provided, and the other side support body has a stopper portion that holds a gap between adjacent conveyance rotating bodies when the length of the other side elastic body is set to the minimum. Is.

  Since the one-side support and the other-side support have the stopper portion that holds the gap between the adjacent transfer rotators, it is possible to appropriately prevent interference between adjacent transfer rotators.

  According to the first aspect of the present invention, after the other axial end of the transmission rotor is taken out from the notch of the other side support through the opening, the one axial end of the transmission rotor is on one side. Since the transmission rotating body can be removed by taking it out from the fitted portion of the support body, the transmission rotating body can be easily removed, and the endless body replacement operation can be facilitated.

  According to the second aspect of the present invention, the one axial end portion of the transmission rotating body is taken out from the notch portion of the one side support body through the opening and the other axial end portion of the transmission rotating body is provided on the other side support body. Since the transmission rotator can be removed by taking it out from the notch through the opening, the transmission rotator can be easily removed, and the endless member can be easily replaced.

  According to the invention of claim 3, since the one side support body and the other side support body have the stopper portion that holds the gap between the adjacent transport rotary bodies, the interference between the adjacent transport rotary bodies is appropriately prevented. Can be prevented.

  An embodiment of the free curve conveyor of the present invention will be described with reference to the drawings.

  1 to 4, reference numeral 1 denotes a free curve conveyor. The free curve conveyor 1 conveys, for example, an article W in a horizontal conveyance direction, and the length in the conveyance direction can be adjusted. At the same time, the conveying direction can be set to a straight line and a curved line.

  The free-curve conveyor 1 includes a plurality of legs 3 with casters 2 and a longitudinal conveyor body 4 that is supported by the plurality of legs 3 and has a longitudinal direction in the front-rear direction that is the conveying direction.

  And the conveyor main body 4 is equipped with the pantograph-shaped one side expansion-contraction body 6 and the other side expansion-contraction body 7 which are located in opposition to each other on the left and right sides. The one-side stretchable body 6 and the other-side stretchable body 7 have a plurality of elongated plate-like coupling members (side plates) 8 that are pivotally coupled at the longitudinal center and upper and lower ends. It can be expanded and contracted along the conveyance direction by rotation. Moreover, since the connection members 8 are connected so as to have a slight play, the one-side stretchable body 6 and the other-side stretchable body 7 can be set in a linear shape and a curved shape. 4 and the like, the plurality of connecting members 8 of the one-side stretchable body 6 are not located on the same surface, and some of the connecting members 8 are located on the outer surface side of the one-side stretchable body 6. The remaining connecting member 8 is located on the inner surface side of the one-side stretchable body 6. Similarly, the plurality of connecting members 8 of the other side elastic body 7 are not located on the same surface, and some of the connecting members 8 are located on the outer surface side of the other side elastic body 7 so as to cover the outer surface of the conveyor body 4. The remaining connecting member 8 is located on the inner surface side of the other side expansion body 7.

  The conveyor body 4 includes a plurality of transport rotating bodies (carrier roller units) 11 that are located between the upper end of the one side stretchable body 6 and the upper end of the other side stretchable body 7 and are arranged along the transport direction. Yes. Each transport rotator 11 is pivoted between the left and right telescopic bodies 6 and 7 via bolts (joint bolts) 12 and nuts 13. Each conveying rotator 11 has a rotatable rotator main body 14 having a substantially cylindrical shape having a length substantially equal to the distance between the two elastic bodies 6, 7, and the longitudinal direction of the rotator main body 14. An annular groove portion 15 is formed on the outer peripheral surface portion on one end side (left end portion side in FIG. 3).

  Further, the conveyor body 4 includes a plurality of one-side supports (one-side roller hangers) 22 fixed to the connecting member 8 of the one-side stretchable body 6 with fixing bolts 21 that are fixtures. As shown in FIGS. 4 and 5, each one-side support 22 has a longitudinal main body plate portion 23 along the connecting member 8 of the one-side stretchable body 6, and the longitudinal center of the main body plate portion 23. The part is formed with a fitting hole 24 which is a slightly long and substantially elliptical fitting part in the longitudinal direction of the main body plate part 23. Also, pin portions 25 that are shaft-shaped flanges having an axial direction in the left-right direction protrude from both ends in the longitudinal direction of the main body plate portion 23, and screw holes that are holes are formed on the tip side of the pin portion 25. A hole 26 is formed.

  Then, the fixing bolt 21 is screwed into the screw hole 26 of the pin 25 so that the one side support 22 can be attached to and detached from the connecting member 8 located on the outer surface side of the one side elastic body 6. The connecting member 8 on the outer surface side and the main body plate portion 23 of the one side support 22 are spaced apart from each other and positioned in parallel.

  In addition, the conveyor body 4 includes a plurality of other side supports (other side roller hangers) 32 fixed to the connecting member 8 of the other side elastic body 7 with fixing bolts 31 that are fixtures. As shown in FIGS. 4 and 6, each other-side support body 32 has a longitudinal main body plate portion 33 along the connecting member 8 of the other-side stretchable body 7. The part is formed with a notch part 34 that is notched from one side edge of the main body plate part 33 toward the center in the width direction and opened by the opening part 37. The notch 34 is constituted by, for example, a substantially rectangular portion 35 and a substantially semi-elliptical semi-elliptical portion 36 bulging upward from the rectangular portion 35. Further, at both ends in the longitudinal direction of the main body plate portion 33, as in the case of the one-side support 22, a pin portion 38, which is a shaft-shaped flange portion having an axial direction in the left-right direction, protrudes, and the tip side of the pin portion 38 A screw hole 39, which is a hole, is formed in the hole.

  The fixing bolt 31 is screwed into the screwing hole 39 of the pin portion 38 so that the other side support 32 can be attached to and detached from the connecting member 8 located on the outer surface side of the other side expansion body 7. The connecting member 8 on the outer surface side and the main body plate portion 33 of the other side support body 32 are spaced apart from each other and positioned in parallel.

  Furthermore, the conveyor body 4 is located between the longitudinal center of the one side support 22 and the longitudinal center of the other side support 32 and is arranged in a plurality of transmission rotors (counter roller units) arranged along the transport direction. 41.

  Each transmission rotator 41 has a shaft portion 42 having an axial direction in the left-right direction that is provided between the supports 22 and 32, and both end portions in the axial direction of the shaft portion 42 have, for example, a substantially elliptical cross section. Is formed. Further, on the outer peripheral side of one end side in the axial direction of the shaft portion 42 (left end portion side in FIG. 3), the axial length is not more than half of the axial length of the rotating body main body portion 14 of the transport rotating body 11. A substantially cylindrical rotating body main body 44 is rotatably provided.

  The rotating body main body 14 of the conveying rotating body 11 and the rotating body main body 44 of the transmission rotating body 41 include a plurality of elastically deformable interlocking belts formed in an annular shape with, for example, synthetic resin. An endless body 46 such as an endless body 46 is stretched over in a state of being positioned in the groove portion 15.

  Further, one axial end portion (left end portion in FIGS. 3 and 4) of the shaft portion 42 of the transmission rotating body 41 is a main body of the one-side support 22 fixed to the connecting member 8 of the one-side stretchable body 6. The plate portion 23 is removably inserted into the insertion hole portion 24. On the other hand, the other axial end portion (right end portion in FIGS. 3 and 4) of the shaft portion 42 of the transmission rotating body 41 is the other side support body 32 fixed to the connecting member 8 of the other side expansion body 7. It is inserted into the notch 34 of the main body plate portion 33 and is in contact with and fitted to the semi-elliptical portion 36 of the notch 34 based on upward biasing by the endless body 46.

  As is apparent from FIG. 7 and the like, in the conveyor body 4, the length along the transport direction of the one side elastic body 6 and the length along the transport direction of the other side elastic body 7 are set to the minimum. In addition, the gap 47 is held between the adjacent conveying rotators 11.

  That is, the one-side support 22 is connected by contact with the side surface of the connecting member 8 of the one-side elastic body 6 when the one-side elastic body 6 is contracted and the length in the transport direction is set to the minimum. A stopper portion 48 that restricts the rotation of the member 8 and holds the gap 47 between the adjacent conveying rotators 11 is formed by, for example, a pair of pin portions 25. . Similarly, when the other side elastic body 7 is contracted and the length in the transport direction is set to the minimum, the other side support body 32 is brought into contact with the side surface of the connecting member 8 of the other side elastic body 7. The stopper member 49 has a stopper portion 49 that restricts the rotation of the connecting member 8 and holds the gap 47 between the adjacent conveying rotators 11. The stopper portion 49 is constituted by, for example, a pair of pin portions 38. ing.

  Moreover, the conveyor main body 4 is provided with the drive motor 50 which is a drive means as FIG. 1 and FIG. 2 shows. Then, based on the power from the drive motor 50, the rotating body main body 44, the endless body 46 of the transmission rotating body 41, and the rotating body main body 14 of the transport rotating body 11 rotate, and the transport rotating body 11 The article W placed on the rotating body main body 14 is conveyed in the conveying direction by the rotation of the rotating body main body 14.

  Next, the operation and the like of the one embodiment will be described.

  For example, when replacing the endless body 46 that is about to be cut due to wear or the like with a new one, the operator first holds the shaft portion 42 of the transmission rotating body 41 as shown by a two-dot chain line in FIG. Press down. That is, the operator changes the shaft portion 42 of the transmission rotating body 41 from the horizontal state to the inclined state against the urging of the endless body 46 so that one shaft end portion of the shaft portion 42 is supported on the other side. It is located in the rectangular part 35 away from the semi-elliptical part 36 of the 32 notches 34.

  Subsequently, the operator pulls one shaft end portion of the shaft portion 42 of the transmission rotating body 41 toward the near side and passes through the opening 37 from the inside of the rectangular portion 35 of the notch 34 of the other side support 32. Thereafter, the entire transmission rotating body 41 is moved to the other expansion / contraction body 7 side, so that the other shaft end portion of the shaft portion 42 is taken out from the fitted hole portion 24 of the one side support 22.

  In this way, the operator can easily remove the transmission rotating body 41 supported by the two supports 22 and 32 from the both supports 22 and 32 with one action without using a tool. That is, in the conveyor body 4, the other end in the axial direction of the transmission rotating body 41 is removed from the notch 34 of the other side support 32 through the opening 37 against the urging force of the endless body 46, and then transmitted. By removing one axial end portion of the rotating body 41 for use from the fitted hole portion 24 of the one-side support body 22, the transmitting rotating body 41 can be easily removed.

  Next, the operator removes the conveying rotator 11 from between both the telescopic bodies 6 and 7 by removing the bolt 12 and the nut 13 for the conveying rotator 11 using a tool, and then adds a new endless body 46. After the conveying rotator 11 is passed therethrough, the conveying rotator 11 is again attached between the telescopic members 6 and 7 with bolts 12 and nuts 13.

  Then, after passing through the transmission rotating body 41 into the new endless body 46, after inserting one shaft end portion of the shaft portion 42 of the transmission rotating body 41 into the insertion hole portion 24 of the one side support 22, The shaft end portion is brought into contact with the semi-elliptical portion 36 of the cutout portion 34 of the other side support 32 through the opening 37.

  Then, according to the above-described embodiment, one end portion in the axial direction of the transmission rotating body 41 is fitted into the insertion hole portion 24 of the one-side support 22, and the other end portion in the axial direction of the transmission rotating body 41 is the other. Since it is inserted into the notch 34 of the side support 32 and is in contact with the semi-elliptical portion 36 of the notch 34 based on the upward biasing by the endless body 46, the transmission rotating body 41 A tool is not required for detaching from both the supports 22 and 32, and the transmission rotating body 41 can be easily removed. Therefore, the replacement work of the endless body 46 can be facilitated and the time can be shortened.

  In addition, since both supports 22 and 32 have stopper portions 48 and 49 for holding a gap 47 between the adjacent transport rotators 11 when the lengths of both the stretchable bodies 6 and 7 are set to the minimum, When the conveyor body 4 is used with the lengths of the two stretchable bodies 6 and 7 set to the minimum, interference between adjacent transport rotators 11 can be appropriately prevented, thereby ensuring a desired transport capability, Durability can be improved by preventing burnout due to overload on the drive motor 50 or the like.

  In the above-described embodiment, the configuration including the one side support 22 having the insertion hole portion 24 and the other side support 32 having the cutout portion 34 has been described. For example, the one side support 22 and The other side support body 32 may have a symmetrical shape, and both the support bodies 22 and 32 may have a cutout portion 34 opened by an opening 37.

  In the case of this configuration, one end of the transmission rotating body 41 in the axial direction is taken out from the notch 34 of the one side support 22 through the opening 37 against the bias of the endless body 46, and the transmission rotation By removing the other end in the axial direction of the body 41 from the notch 34 of the other side support 32 through the opening 37 against the bias of the endless body 46, the transmission rotating body 41 can be easily removed. The transmission rotor 41 can be removed more easily. In order to prevent the transmission rotating body 41 from being inadvertently removed from the notch 34, as shown in FIG. 8, the opening direction of the notch 34 of the one side support 22 and the notch of the other side support 32 are provided. The opening direction of the part 34 may be different.

  Further, the insertion portion of the one side support 22 is not limited to the insertion hole portion 24 formed through the main body plate portion 23, and may be, for example, an insertion recess portion. In addition to insertion in a strict sense, the case where it is inserted in a loose fit is also included.

It is a schematic side view which shows one Embodiment of the free curve conveyor of this invention. It is a schematic side view of a free curve conveyor same as the above. It is a front view of a free curve conveyor same as the above. It is front view sectional drawing of a free curve conveyor same as the above. It is a partial side view of a free curve conveyor same as the above. It is a partial side view of a free curve conveyor same as the above. It is a partial side view in the state which contracted the expansion-contraction body of the free curve conveyor same as the above. It is a figure which shows the support body of other embodiment of this invention.

Explanation of symbols

1 Free curve conveyor 6 One side stretchable body 7 Other side stretchable body
11 Transport rotating body
22 One side support
24 Insertion hole part that is an insertion part
32 Other side support
34 Notch
37 opening
41 Transmission rotor
46 Endless
47 Gap
48, 49 Stopper

Claims (3)

One side stretchable body and the other side stretchable body, which are located opposite to each other,
A transport rotator positioned between the one side stretchable body and the other side stretchable body;
A one-side support provided on the one-side elastic body and having a fitted portion; and
The other side support body which is provided in the other side elastic body and has a notch opened at the opening,
A transmission rotating body located between the one side support and the other side support;
An endless body spanned over the conveying rotating body and the transmission rotating body,
One axial end portion of the transmission rotating body is fitted into the fitted portion of the one-side support,
The other axial end of the transmission rotor is inserted into the notch of the other support,
When removing the transmission rotator, the other end in the axial direction of the transmission rotator is taken out from the notch of the other side support through the opening, and then the transmission rotator is removed. One end part of an axial direction is taken out from the said insertion part of the said one side support body. The free curve conveyor characterized by the above-mentioned. One side stretchable body and the other side stretchable body, which are located opposite to each other,
A transport rotator positioned between the one side stretchable body and the other side stretchable body;
A one-side support provided on the one-side stretchable body and having a notch opened at an opening; and
The other side support body which is provided in the other side elastic body and has a notch opened at the opening,
A transmission rotating body located between the one side support and the other side support;
An endless body spanned over the conveying rotating body and the transmission rotating body,
One axial end of the transmission rotating body is inserted into the notch of the one-side support,
The other axial end of the transmission rotor is inserted into the notch of the other support,
When removing the transmission rotator, the axial end of the transmission rotator is taken out from the cutout portion of the one-side support through the opening, and the axial direction of the transmission rotator, etc. An end is taken out from the notch of the other side support through the opening. A free curve conveyor. The one-side support has a stopper portion that holds a gap between the adjacent transfer rotators when the length of the one-side stretchable body is set to the minimum.
The other-side support has a stopper portion that holds a gap between adjacent transfer rotators when the length of the other-side stretchable body is set to a minimum. Free curve conveyor.

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