JP4986027B2 - Transport device - Google Patents

Description

  The present invention relates to a transport device for transporting articles such as baggage.

A conventional transport device includes an endless body that moves along a guide body, a transport body that is provided on the endless body and moves with the endless body to transport an article such as baggage, and a drive that is a drive unit that moves the endless body. Means. The drive means includes a drive rotation member that contacts the endless body and moves the endless body, a driven rotation member that sandwiches the endless body together with the drive rotation member, and a biasing member that constantly contacts the driven rotation member with the endless body; And a guide roller for sandwiching the endless body (see, for example, Patent Document 1).
Japanese Patent Publication No. 60-289 (Fig. 4)

  However, in the conventional transport device, when the contact portion of the drive rotation member with the endless body is worn, the drive rotation member and the endless body may be in non-contact.

  The present invention has been made in view of the above points, and provides a conveyance device capable of appropriately maintaining the contact state between the drive rotating member and the endless body even when the contact portion of the drive rotating member with the endless body is worn. The purpose is to do.

The transport device according to claim 1 is a guide body, a movable endless body guided by the guide body , a transport body that is provided in the endless body and moves with the endless body to transport an article, Drive means for moving the endless body along the guide body, the guide body having a guide rail member for guiding the endless body, and the drive means is driven in contact with the endless body. A drive rotation member that rotates and moves the endless body along the guide body, a biasing member that always contacts the drive rotation member with the endless body, and a rotation support member that rotates about a rotation fulcrum The drive rotation member is supported by the rotation support member so as to be capable of driving rotation about a rotation fulcrum, and the urging member is configured so that the rotation support member becomes the endless body. It is a spring member that biases in the opposite direction The spring member is constituted by a coil spring positioned in parallel with the guide rail member, and the rotation support point of the rotation support member is behind the rotation support point of the drive rotation member in the movement direction of the endless body. It is located at a position close to the endless body .

The conveying device according to claim 2 is the conveying device according to claim 1, wherein the driving means is a bolt mounting member, a bolt mounted on the bolt mounting member, and a coil spring disposed on the outer peripheral side, and the bolt. The coil spring has one end abutting on the nut, and the other end of the coil spring abutting on a spring-contacted portion of the rotation support member. The urging force to the rotation support member can be adjusted by operating the nut.

According to a third aspect of the present invention, in the conveying device according to the first or second aspect, the driving means includes a driven rotating member that sandwiches the endless body together with the driving rotating member.

  According to the present invention, the drive means has a drive rotation member that rotates and moves the endless body in contact with the endless body, and a biasing member that constantly contacts the drive rotation member with the endless body. Even if the contact portion of the rotating member with the endless body is worn, the contact state between the driving rotating member and the endless body can be appropriately maintained.

  An embodiment of a transfer device of the present invention will be described with reference to the drawings.

  In FIG. 1, reference numeral 1 denotes a transport device. The transport device 1 is a baggage transport conveyor that is installed, for example, in a passenger baggage reception area at an airport and circulates and transports items such as baggage.

  As shown in FIG. 1, the conveying device 1 includes a guide body 2 such as an annular guide guide, an endless body 3 such as a roller-attached chain that moves in the moving direction along the guide body 2, and an endless body 3. It is provided with a transport body 4 that moves together with the endless body 3 and loads and transports an article (not shown) such as baggage, and one driving means 5 that moves the endless body 3 along the guide body 2. Yes.

  As shown in FIGS. 2 and 3, the guide body 2 has a pair of guide rail members 11 that are spaced apart from each other. Each guide rail member 11 has a horizontal mounting plate portion 12 fixed to the base body 10, and a vertical guide plate portion 13 is integrally provided at the inner end portion of the mounting plate portion 12. . An inner surface which is a facing surface of the guide plate portion 13 serves as a guide surface 14 for guiding the endless body 3.

  As shown in FIGS. 1, 3, and 4, the endless body 3 includes an endless main body 17 that is configured by rotatably connecting adjacent connecting members 16. Vertical contacted surface portions 18a and 18b are formed on the left and right sides of the endless main body 17 in the moving direction. The endless main body 17 is provided with a plurality of circular rollers 19 that are rotatable about a vertical axis 20. The rollers 19 are disposed between the guide plate portions 13 of the pair of guide rail members 11 that are spaced apart from each other, and are guided by these guide plate portions 13. The diameter of the roller 19 is substantially the same as the distance between the guide plate portions 13 that are spaced apart from each other.

  As shown in FIGS. 1 and 3, the transport body 4 has a plurality of slats 21 arranged in parallel at equal intervals on the top of the endless main body 17 of the endless body 3. Each slat 21 is formed in a longitudinal shape in a direction orthogonal to the moving direction of the endless body 3, and a traveling roller 22, which is a circular traveling member, is rotatable about a horizontal axis 23 at both ends in the longitudinal direction. Is provided. The travel roller 22 travels while rotating on the horizontal guide plate portion 25 of the roller guide rail member 24. Each slat 21 is fixed with a substantially rectangular plate-like carrier panel (not shown) made of a rubber plate or the like, and an article such as baggage is placed on the carrier panel and circulated.

  As shown in FIGS. 1 to 4, the drive means 5 decelerates power from the electric motor 30 as a drive source and the electric motor 30 in a state where the outer peripheral surface portion 32 is in contact with one contacted surface portion 18a of the endless body 3. A drive roller 31 that is a circular drive rotation member that receives and rotates through a machine and moves the endless body 3 along the guide body 2, and an outer peripheral surface portion 32 of the drive roller 31 is connected to the endless body 3. It has a spring member 33 that is a biasing member that is always brought into contact with one contacted surface portion 18a with a desired contact force.

  The driving means 5 includes a rotation support member 35 such as a substantially plate-like bracket that rotates about a rotation fulcrum A, for example, a vertical axis 34, and an outer peripheral surface portion 37 of the other endless body 3 to be contacted. A driven roller 36 that is a circular driven rotating member that is driven to rotate while being in contact with the surface portion 18b and clamps the endless body 3 together with the driving roller 31 is provided.

  The drive roller 31 is supported by a rotation support member 35 so as to be capable of driving and rotating about a rotation fulcrum a, for example, a vertical axis 41. The electric motor 30 is fixed to the rotation support member 35 and supported by the rotation support member 35. As shown in FIG. 3, the rotation support member 35 is supported by a resin-made first receiving member 43 and a resin-made second receiving member 44 and has a rotation fulcrum A as a center. It can be turned.

  Further, as shown in FIG. 4, the rotation fulcrum A of the rotation support member 35 is located behind the rotation fulcrum a of the driving roller 31 in the moving direction of the endless body 3 and close to the endless body 3. ing. That is, the rotation fulcrum A of the rotation support member 35 is located upstream of the rotation fulcrum a of the drive roller 31 in the moving direction of the endless body 3 and closer to the endless body 3 side.

  Further, the spring member 33, which is an elastic body, urges the rotation support member 35 in the direction in which the drive roller 31 faces the endless body 3, and is constituted by a cylindrical coil spring 46, for example. As shown in FIG. 2, the coil spring 46 is disposed on the outer peripheral side of a bolt 48 attached to a bolt attachment member 47. One end of the coil spring 46 is in contact with a nut 49 screwed to the bolt 48, and the other end of the coil spring 46 is in contact with the spring contact portion 50 of the rotation support member 35. The urging force of the spring member 33 on the rotation support member 35 can be adjusted by operating the nut 49.

  Further, the driven roller 36 is supported by a fixed support member 51 fixed to the base body 10 so as to be driven to rotate about a rotation fulcrum b, for example, a vertical axis 52. The diameter of the driven roller 36 is substantially the same as the diameter of the drive roller 31. Further, the rotation fulcrum a of the driving roller 31 and the rotation fulcrum b of the driven roller are located symmetrically with the endless body 3 as the center. Both the outer peripheral surface portion 32 of the driving roller 31 and the outer peripheral surface portion 37 of the driven roller 36 are formed of a resin such as urethane.

  Next, the operation and the like of the transfer device 1 will be described.

  When the electric motor 30 of the driving means 5 is actuated, the driving roller 31 supported by the rotation support member 35 is based on the urging force of the spring member 33 and a part of the outer peripheral surface portion 32 of the endless body 3 is an endless body. In a state of being pressed against and in contact with the 17 contacted surface portion 18a, it is driven to rotate by power from the electric motor 30 side.

  When the driving roller 31 is driven to rotate, the endless body 3 moves along the guide body 2 in the moving direction while being sandwiched between the driving roller 31 and the driven roller 36 from both sides in the moving direction. Articles such as baggage placed thereon are circulated and conveyed by the conveyance body 4.

  For example, even if the outer peripheral surface portion 32 of the drive roller 31 is worn, the rotation support member 35 is rotated about the rotation fulcrum A by the biasing force of the spring member 33 according to the wear amount, and the drive roller 31 Is moved toward the endless body 3 by the amount of wear, so that the contact state between the outer peripheral surface portion 32 of the drive roller 31 and the contacted surface portion 18a of the endless main body 17 of the endless body 3 is maintained.

  For example, even if the contacted surface portion 18a of the endless main body 17 of the endless body 3 is uneven, the rotation support member 35 rotates about the rotation fulcrum A according to the unevenness, and the drive roller 31 is endless. In order to follow the unevenness of the body 3, the contact state between the outer peripheral surface portion 32 of the driving roller 31 and the contacted surface portion 18a of the endless main body 17 of the endless body 3 is maintained.

  As described above, according to the transport device 1, the drive roller 5 that drives and rotates in a state in which the driving unit 5 is in contact with the endless body 3 and the spring that constantly moves the drive roller 31 to the endless body 3. Even if the outer peripheral surface portion 32 made of resin, which is a contact portion of the drive roller 31 with the endless body 3, is worn out, or when the contacted surface portion 18a of the endless body 3 is uneven, the drive is performed. The contact state between the outer peripheral surface portion 32 of the roller 31 and the contacted surface portion 18a of the endless body 3 can be appropriately maintained, and a desired propulsive force can be applied to the endless body 3, so that an appropriate transport operation can be performed.

  Further, since the rotation fulcrum A of the rotation support member 35 is located behind the rotation fulcrum a of the drive roller 31 in the movement direction of the endless body 3 and close to the endless body 3, a desired propulsive force can be obtained. Thus, a desired driving force can be appropriately transmitted from the driving roller 31 to the endless body 3.

  5A to 5D, the rotation fulcrum A of the rotation support member 35 is the rotation fulcrum B (the distance from the endless body 3 is the same as the rotation fulcrum a) or the rotation fulcrum C. When the distance changes from the endless body 3 to the rotation fulcrum a, the distribution ratio of the pressing force and the propulsive force changes. As is clear from this figure, the rotation fulcrum A provides a larger propulsive force than the rotation fulcrums B and C.

  Furthermore, there is only one driving means 5 for driving the endless body 3, and adjustment of the urging force of the spring member 33 is one place, so that maintenance work and the like can be easily performed.

In the above embodiment, the configuration has been described in which the driven roller 36 is provided at a position facing the driving roller 31 and the endless body 3 is sandwiched between the two driving rollers 31 and the driven roller 36. Or a support member such as a support plate that contacts the contacted surface portion 18b of the endless body 3 instead of the driven roller 36, and the endless body 3 is sandwiched between the support member and the driving roller 31. A configuration or the like may be used. Further, for example, the drive rollers 31 may be provided symmetrically on both sides in the moving direction of the endless body 3 .

It is a top view of the conveying apparatus which concerns on one embodiment of this invention. It is a top view of the drive means of a conveyance apparatus same as the above. It is sectional drawing of a drive means same as the above. It is a schematic plan view of a drive means same as the above. It is explanatory drawing at the time of changing the position of the rotation fulcrum of the rotation support member of a drive means same as the above.

1 Transport device
2 Guide body 3 Endless body 4 Transport body 5 Driving means
11 Guide rail members
31 Drive roller as drive rotating member
33 Spring member as a biasing member
35 Rotating support member
36 A driven roller as a driven rotating member
46 coil spring
47 bolt mounting member
48 volts
49 nuts
50 Spring contacted part A Rotation fulcrum of the rotation support member a Rotation fulcrum of the drive rotation member

Claims (3)

A guide,
A movable endless body guided by the guide body ;
A transport body that is provided on the endless body and moves with the endless body to transport the article;
Drive means for moving the endless body along the guide body ,
The guide body has a guide rail member for guiding the endless body,
The driving means includes
A drive rotating member that drives and rotates in contact with the endless body and moves the endless body along the guide body ;
An urging member that constantly contacts the drive rotating member with the endless body ;
A rotation support member that rotates about a rotation fulcrum;
The drive rotation member is supported by the rotation support member so as to be capable of driving rotation around a rotation fulcrum,
The biasing member is a spring member that biases the rotation support member in a direction in which the drive rotation member faces the endless body,
This spring member is constituted by a coil spring positioned in parallel to the guide rail member,
The transporting apparatus according to claim 1, wherein the pivot support point of the pivot support member is located at a position rearward in the movement direction of the endless body from the rotation support point of the drive rotating member and close to the endless body . The driving means is
A bolt mounting member;
A bolt attached to the bolt mounting member and having a coil spring disposed on the outer peripheral side;
A nut screwed onto the bolt;
One end of the coil spring is in contact with the nut and the other end of the coil spring is in contact with a spring-contacted portion of the rotation support member;
The urging force to the rotation support member by the coil spring can be adjusted by operating the nut.
The conveying apparatus according to claim 1. The drive means has a driven rotation member that holds the endless body together with the drive rotation member.
The conveying apparatus according to claim 1 or 2, wherein

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