JP2019077559A - Ball caster transportation direction shifting tool - Google Patents

Abstract

To provide a mechanism for, in transporting box articles using a roller conveyor at a work site, shifting the transportation direction of a box to be transported by 90 degrees and at the same time rotating by 90 degrees at a place where the roller conveyor is disposed in a T-shape at any place to make flow discontinuous, thereby fulfilling the desire to shift by 90 degrees and rotate by 90 degrees at any place.SOLUTION: There is provided a ball caster transportation direction shifting tool that functions only by being placed over roller conveyor main frames in a grid space between the rollers of the roller conveyor. The tool allows boxes to be transported to easily ride on the ball caster rotating and shifting surfaces formed by a plurality of ball casters from the roller transporting faces, enabling a condition where the bottom surfaces of the boxes to be transported do not contact the roller transporting faces.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for sending out in the lateral direction from the transport direction of a roller conveyor installed or temporarily installed, and further relates to a technique for enabling easy delivery at any position.

  In particular, when using roller conveyors at work sites that are frequently moved and transferred, there is a demand to send out laterally from the transport direction of the temporarily installed roller conveyors, and it is expected to appear easily at any position. ing.

  The utilization of roller conveyors in the fields is increasing, especially at agricultural harvesting sites, but when the roller conveyors are placed directly on the field, they are dedicated to placing plastic boxes on one or two tiers. There are also many cases where a method that can be easily moved and relocated by a bogie equipped with a legged platform or wheels is used.

  In addition, the direction of carrying out the boxed harvest box using the roller conveyor is the work road provided in the field (a tractor etc runs in disinfection and watering, and loading and unloading of the transport vehicle at the time of harvesting work Used for the installation of light trucks etc.), but the movement and replacement of a large number of vehicles installed in the work road is practically difficult, and the harvest position moves rapidly. In addition, since agricultural roads on public roads are generally narrow and obstruct the passage of other vehicles, parking on agricultural roads is basically not performed. Also, loading on a transport vehicle such as a truck may be from the side of the vehicle or from the rear, and it is necessary to change the transport direction by 90 degrees in order to use the roller conveyor effectively. Therefore, although the present situation is handled by transshipment work by human power, it can not be done by a weak worker or a person who hurt his knee or hip.

  Although a roller conveyor normally conveys a to-be-conveyed object in one direction, a direction change device for changing the conveyance direction is known. As a device for changing the transport direction, a taper roller is disposed on a frame curved in an arc shape, and a direction change device is devised to change the transport direction while changing the transport posture of the transported object (actually 5282). According to this direction change device, although it is possible to change the transport direction of all transported objects, the transport path is branched, and the transported object transported from upstream to downstream, and the transport direction are changed. There is a possibility that it can not be sorted with the transported object transported by the transportation route of the above. Further, it is expected that the installation and transfer of the tapered roller conveyor will be difficult.

  Moreover, the direction change apparatus provided with the several rotatable caster arrange | positioned with a wheel upward in the rectangular base is proposed (Unexamined-Japanese-Patent No. 2014-114135). If a roller conveyor whose transport direction is the same as the upstream side is installed on the downstream side of the direction change device, the transport route is branched on the direction change device, and the transported object transported from upstream to downstream, and the transport direction It is considered possible to sort the objects to be transported by another transport route by changing However, since the said direction change apparatus is arrange | positioned between roller conveyors, there exists a possibility that the conveyance direction can not be changed in the arbitrary places in one roller conveyor.

  As a direction change device capable of changing the transport direction at any place in the roller conveyor, it has a pick-up conveyor for scooping the transferred object and a sorting conveyor for changing the transport direction, which are placed on the moving body portion A sorting apparatus to be installed has been proposed (Japanese Patent Application Laid-Open No. 10-3102232). However, according to this sorting apparatus, when transporting objects to the downstream end portion without changing the transport direction, it is necessary to move the sorting device to the end portion, so work efficiency can be improved. There is no fear. In addition, it is expected that the installation and transfer of roller conveyors will be difficult.

Japanese Utility Model Publication No. 6-5282 JP 2014-114135 A Japanese Patent Application Laid-Open No. 10-310232

  In view of the above-mentioned inconveniences, the present invention can easily change the conveying direction of the object to be conveyed, can be easily installed at any place in the roller conveyor, and further changes the conveying direction. It is an object of the present invention to provide a ball caster transfer direction changing tool capable of easily connecting a roller conveyer for branching the transferred objects.

  A device using a ball caster that functions simply by bridging the roller conveyor main frame and placing it in a frame space (hereinafter referred to as a frame space) of one frame formed by two adjacent rollers and a roller conveyor main frame The ball caster is arranged in one or two rows, the virtual line connecting the top of the ball caster is parallel to the roller axis, and the top of the ball caster is 1 to 2 mm from the conveyance surface formed by the roller, and the bottom of the transported box is The bottom surface of the transported box is a group of ball caster apexes by providing the apparatus in a height sufficient to ground, projecting out, and arranging the apparatus in at least two adjacent mass spaces or one mass space. It is lifted up from the contact surface with the roller and supported on the bottom of the transported box by the ball caster, so that it can be sent out in all directions. And it made it possible to place turning. Moreover, it was decided to provide an integral structure in which the load and the bottom dimension of the to-be-conveyed box are fixed.

  One aspect of the present invention made to solve the above-mentioned problems can be installed at any position of a roller conveyor having a pair of roller conveyor main frames and a plurality of rollers juxtaposed to the roller conveyor main frames A transport direction changer provided to switch the transport direction of the transported object transported by the roller conveyor, the plurality of ball casters having rotatable balls and arranged in at least one row, And a ball caster fixed frame on which the ball caster is mounted and fixed, wherein the plurality of ball casters are disposed between the rollers of the roller conveyor, and the upper end of the ball is positioned above the conveying surface of the roller. In the state, the ball caster fixed frame is supported by the roller conveyor, and the balls of the ball caster are Upper edge of the case to lifting are ball casters conveyance direction changing device which is positioned below the conveying surface of the plurality of rollers is formed.

  Since the said ball | bowl caster conveyance direction change tool can be installed between the rollers of a roller conveyor, it can be arrange | positioned in the arbitrary places in a roller conveyor. Further, the ball caster transport direction changing tool has a plurality of ball casters, and the upper end of the ball included in the ball caster is positioned above the transport surface of the roller, so the transported object is in the ball caster transport direction. It separates from the conveyance surface of the roller conveyor on the conversion tool. Therefore, the transport direction of the transported object can be easily changed to any direction.

  The plurality of ball casters are arranged side by side in at least two rows, the ball casters in each row are fixed to the ball caster fixing frame, and at least the ball casters in each row are spaced apart and parallelized. It is preferable to have two rows of ball caster fixed horizontal frames, and a pair of transfer direction change tool both end members connected to both ends of the at least two rows of ball caster fixed horizontal frames and supported by the roller conveyor main frame. By doing this, the installation of the ball caster transfer direction changing tool can be facilitated.

  The ball caster conveyance direction change tool is provided on at least one of the pair of conveyance direction change tool both end members, and a connection shaft on which hooks of a connected roller conveyor for connecting the roller conveyors perpendicularly can be locked. It is good to further provide. By doing this, it is possible to easily connect a roller conveyor for transporting the transported object whose transport direction is to be changed in the transport direction to be changed.

  As described above, according to the ball caster conveyance direction changing tool of the present invention, it is possible to easily change the conveyance direction of the object to be conveyed, and to easily install it at any place in the roller conveyor. In addition, it is possible to easily connect a roller conveyor for branching the transport path.

It is a schematic plan view of a ball caster conveyance direction change tool concerning one embodiment of the present invention. It is a schematic plan view of the ball | bowl caster conveyance direction change tool different from FIG. It is a schematic sectional drawing of arrow AA of FIG. It is a schematic sectional drawing of arrow B-B of FIG. It is a schematic plan view of a roller conveyor on which a ball caster conveyance direction change tool according to another embodiment of the present invention is installed. Figure 6 is a schematic side view of one end of the roller conveyor of Figure 5; Figure 6 is a schematic side view of the other end of the roller conveyor of Figure 5; It is a schematic side view which shows the state which connected the other roller conveyor to the roller conveyor of FIG. It is a schematic plan view of a ball caster conveyance direction change tool. It is a schematic side view of the ball caster conveyance direction change tool of FIG. It is a schematic plan view which shows the state which installed the ball | bowl caster conveyance direction change tool of FIG. 9 in the roller conveyor. It is a schematic sectional drawing of CC of FIG. It is a schematic plan view of a ball caster conveyance direction change tool different from FIG. It is the schematic enlarged view of D of FIG. It is a schematic plan view of a ball caster conveyance direction change tool different from FIGS. It is a schematic side view of the ball caster conveyance direction change tool of FIG. FIG. 16 is a schematic plan view of the ball caster transport redirector of FIG. 15 with a stopper; It is a schematic side view of a ball caster conveyance direction change tool different from FIG.9, FIG.13, FIG.15. It is a schematic plan view of a ball caster conveyance direction changer different from FIG. 9, FIG. 13, FIG. It is a schematic side view of the ball caster conveyance direction change tool of FIG. FIG. 20 is a schematic plan view showing a state in which another roller conveyor is connected to the ball caster conveyance direction changer of FIG. 19; It is a schematic plan view which shows the connection state of the roller conveyor different from FIG.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate.

  One embodiment of the present invention is a transport direction changing tool which is installed on a roller conveyor in which a plurality of rollers are juxtaposed, and which switches the transport direction of the transported object transported by the roller conveyor, and is rotatable Of the roller conveyor, each of the plurality of ball casters having a plurality of balls and arranged in at least one row, and a ball caster fixed frame on which the ball caster is mounted and fixed. It is a ball caster conveyance direction change tool in which the ball caster fixed frame is supported by the roller conveyor in a state where the ball upper end is disposed above the conveyance surface of the roller, which is disposed between the rollers. Specifically, the number of ball casters is preferably three or more.

  As shown in FIG. 1, two ball caster conveyance direction changer units 21 are continuously disposed in a frame space 15 surrounded by the adjacent rollers 11 and the left and right roller conveyor main frames 13. In one ball caster conveyance direction changer unit 21, five ball casters 221 are inverted and arranged in a line, and each ball caster 221 is a ball caster fixed horizontal frame by two ball caster fixed bolt nuts 3. The reaction force is fixed when the bottom surface corner of the leading end of the box to be conveyed collides with the balls 222 of the ball caster 221 of one row. Hit and receive by coaxial 12.

  The ball caster conveyance direction changer 2 base integrated type 22 shown in FIG. 2 has the same function and form as the one in which two ball caster conveyance direction changer single members 21 shown in FIG. 1 are arranged. Due to the shape in which two single end members 241 are connected, two parts of the transfer direction changing member shown in FIG. A U-shaped groove 243 shown in the integral type 242 is provided.

  The function of the ball caster 221 will be described with reference to FIG. 1 and FIG. 3. When the bottom corner of the tip of the transferred box which has moved the roller conveyor transfer surface 14 hits the ball 222 of a row of ball caster The center of gravity of the box to be transported passes the ball 222 in the row, and is completely cut with the roller conveyor transfer surface 14, and the bottom of the box to be transported is the turning / turning surface 226 formed by the ball 222 of the ball caster 221. Contact the top 223 of the ball caster.

  The bottom dimensions of the box to be transported and the installation number of the ball caster transporting direction changer unit 21 are rounded up or down after the decimal point of the length of the long side of the bottom of the box to be transported divided by the installation interval of the roller shaft 12 The figure is a guide.

  The above-mentioned ball caster conveyance direction change tool 2 is used, for example, in the following conveyance system. The said conveyance system has a roller conveyor and the said ball | bowl caster conveyance direction change tool.

<Roller conveyor>
As shown in FIG. 5, the roller conveyor 1 includes a plurality of rollers 11 that rotate in the front-rear direction of the roller conveyor 1 to convey the transported object, a roller shaft 12 that rotatably supports the rollers 11, and a roller A pair of roller conveyor main frames 13 for holding the shaft 12 are mainly provided. Further, as shown in FIG. 6, a pair of connection hooks 400 disposed on each roller conveyor main frame 13 and connected to the other roller conveyors are disposed at one end in the longitudinal direction of the roller conveyor main frame 13 At the other end, as shown in FIG. 7, it has a connecting shaft 401 for connecting to another roller conveyor. The roller conveyor 1 is used by placing it on the floor, the ground or the like, or placing it on a dedicated support leg or the like. The operator places the transported object on the roller 11 of the roller conveyor 1 and presses the transported object in the transport direction, so that the roller 11 is rotated and the transported object is moved. Can be transported. In the following description, for convenience, one end having the connection hook 400 is “front” of the roller conveyor 1, the other end having the connection shaft 401 is “rear”, and the side on which the conveyed object is placed is “upper”, The other side is called "bottom".

(Roller conveyor main frame)
The roller conveyor main frame 13 has a plate-like portion that constitutes the side surface of the roller conveyor 1 and this plate-like member has through holes with the same diameter for holding the plurality of roller shafts 12 at the same intervals. The roller conveyor main frame 13 is used as a pair, and the pair of roller conveyor main frames 13 are arranged in parallel. The shape of the roller conveyor main frame 13 is not particularly limited, and a known shape such as a flat plate shape, a square tube shape, a C-shaped channel shape and the like can be used, but a C-shaped channel shape is preferable. The material of the roller conveyor main frame 13 is not particularly limited, and a known material such as iron, stainless steel, or aluminum can be used.

(Roller shaft)
The roller shaft 12 is inserted into the through hole of the roller conveyor main frame 13 and arranged in parallel between the pair of roller conveyor main frames 13. The diameter of the roller shaft 12 is not particularly limited and may be appropriately selected depending on the load, size, and the like of the roller conveyor main frame 13 and the roller 11, but may be, for example, 3 mm or more and 20 mm or less. The material of the roller shaft 12 is not particularly limited, and known materials such as iron, stainless steel, aluminum and resin can be used.

(roller)
The roller 11 is supported by a roller shaft 12 disposed between the pair of roller conveyor main frames 13. The roller 11 is rotatably supported by the roller shaft 12, and the upper end of the roller 11 is located above the roller conveyor main frame 13 and constitutes the conveyance surface of the roller conveyor 1. The roller 11 has a cylindrical shape, and the diameter thereof is not particularly limited, but can be, for example, 10 mm or more and 60 mm or less. The length of the cylindrical roller 11 is not particularly limited, but can be, for example, 100 mm or more and 1000 mm or less. The material of the roller 11 is not particularly limited, and known materials such as iron, stainless steel, aluminum, and resin can be used. A cushioning protective material such as rubber can be attached to the surface of the roller 11 in order to prevent or suppress the formation of wrinkles and the like on the transported object.

  The roller 11 is preferably supported by the roller shaft 12 via a bearing. The bearing reduces the rotational resistance of the roller 11 and can more easily transport the transported object. Alternatively, the roller 11 and the roller shaft 12 may be integrally formed, and the roller shaft 12 may be held in the through hole of the roller conveyor main frame 13 via a bearing. The bearing is not particularly limited, and known bearings such as a ball bearing and an oil-impregnated resin sleeve can be used.

(Connection hook)
The front portion of the roller conveyor 1 is provided with a pair of connection hooks 400 for connecting to the other roller conveyors. Specifically, the connection hook 400 is a plate-like member, and has a groove portion 402 engaged with a connection shaft 401 described later, and the opening of the groove portion 402 is made downward or in the front portion of the roller conveyor main frame 13. It is arranged upward. The method for arranging the connection hooks 400 on the plate-like portion of the roller conveyor main frame 13 is not particularly limited, and known methods such as bonding and welding with a bolt and a nut can be adopted. It does not specifically limit as a material of the connection hook 400, Iron, stainless steel, etc. can be used.

(Connection shaft)
The rear of the roller conveyor 1 is provided with a connecting shaft 401 to be connected to another roller conveyor. Specifically, a connecting shaft 401 is disposed substantially horizontally at the rear of the roller conveyor main frame 13. The connecting shaft 401 is a cylindrical member and engages with the groove 402 of the connecting hook 400 of another roller conveyor. The method for arranging the connecting shaft 401 on the plate-like portion of the roller conveyor main frame 13 is not particularly limited, and a known method such as welding can be adopted. The material of the connecting shaft 401 is not particularly limited, and the same material as the roller conveyor main frame 13 can be used.

  The roller conveyor 1 may not have the connecting shaft 401 and may have connecting hooks 400 at the front and rear. Alternatively, the roller conveyor 1 may not have the connecting hook 400 but may have the connecting shaft 401 at the front and rear.

  By engaging the connection hook 400 of the roller conveyor 1 with the connection shaft 401 of the other roller conveyor 1, as shown in FIG. 8, the roller conveyor 1 can be connected to the other roller conveyor 1. By engaging the connecting shaft 401 of the roller conveyor 1 with the connecting hook 400 of the other roller conveyor 1, the roller conveyor 1 can be connected with the other roller conveyor 1. Since the roller conveyor 1 includes the connection hook 400 and the connection shaft 401, the connection of the plurality of roller conveyors 1 is facilitated, and the transport path length can be appropriately changed, and the installation, transfer, etc. of the roller conveyor 1 Can be made easier.

<Ball caster conveyance direction change tool>
More specifically, the ball caster conveyance direction changer 2 includes a plurality of ball casters 221 and a ball caster fixing frame 25 for fixing the ball casters 221, as shown in FIGS. Have. The ball caster conveyance direction changing tool 2 is disposed between the roller 11 and the roller 11 disposed before and after the roller 11 (piece space). The upper end of the ball 222 included in the ball caster 221 is positioned above the conveying surface of the roller 11, and the upper end edge of the ball caster case 224 for holding the ball 222 of the ball caster 221 is a conveyance formed by the plurality of rollers. It is located below the plane.

(Ball caster)
The ball caster 221 has a ball 222 and a ball caster case 224. The ball 222 is rotatably supported by the ball caster case 224 in all directions. The material of the ball 222 is not particularly limited, but known materials such as iron, stainless steel and resin can be used. The material of the ball caster case 224 is not particularly limited, but the same material as the ball 222 can be used.

(Ball caster fixed frame)
The ball caster fixed frame 25 has a ball caster fixed horizontal frame 23 and transport direction changer both end members 24 connected to both ends in the longitudinal direction of the ball caster fixed horizontal frame 23.

(Ball caster fixed horizontal frame)
The ball caster fixed horizontal frame 23 mounts a plurality of ball casters 221. Preferably, a plurality of ball casters 221 are mounted on the ball caster fixed horizontal frame 23. Specifically, it is preferable that at least three ball casters 221 be placed at equal intervals at an interval equal to or less than a half of the longitudinal length of the ball caster fixed horizontal frame 23. The method for fixing the ball caster case 224 to the ball caster fixed horizontal frame 23 is not particularly limited, and a known method such as fixing with a bolt or bonding can be adopted. The material of the ball caster fixed horizontal frame 23 is not particularly limited, but known materials such as iron, stainless steel, and aluminum can be adopted.

(Conveying direction changing tool both end members)
The transfer direction change tool both end members 24 at least include a side plate 403 disposed on the inner surface between the pair of roller conveyor main frames 13 and a top plate 404 disposed on the upper surface of the roller conveyor main frame 13. The lower end of the side plate 403 is connected to the ball caster fixed horizontal frame 23. The method of connecting to the side surface of the conveying direction changing tool both end members 24 is not particularly limited as a method of being connected to the ball caster fixed horizontal frame 23, but it can be connected by known methods such as joining with bolts and nuts. Alternatively, the transfer direction changing tool both end members 24 may be integrally formed with the ball caster fixed horizontal frame 23.

  Conveying direction changing tool both end members 24 are used as a pair, and as shown in FIG. 11 and FIG. 12, the back surface (lower surface) of the top plate 404 of the pair of conveying direction changing tool both members 24 is mounted on the roller conveyor main frame 13 By placing, the ball caster conveyance direction change tool 2 is installed in the top space. It is preferable that the ball caster conveyance direction change tool 2 be continuously installed in a plurality of frame spaces depending on the size of the object to be conveyed.

  Preferably, the transport redirecting tool end members 24 have at least two rows of ball caster fixed horizontal frames 23 spaced apart and juxtaposed. For example, as shown in FIG. 13, the transfer direction changing tool both end members 24 have two ball caster fixed horizontal frames 23, and each ball caster fixed horizontal frame 23 is disposed in the adjacent piece space. Is preferred. The conveyance direction change tool both end members 24 can facilitate installation of the ball caster direction change tool 2 by having a plurality of ball caster fixed horizontal frames 23. As shown in FIG. 4, a U-shaped groove 243 for avoiding interference with the roller shaft 12 may be provided on the side plate 403 of the transfer direction changing tool both end members 24 having a plurality of ball caster fixed horizontal frames 23. preferable. The shape of the groove may be any shape such as V-shape or rectangular shape other than U-shape.

  The upper end of the ball 222 included in the ball caster conveyance direction change tool 2 installed on the roller conveyor 1 is positioned above the upper end of the roller 11, as shown in FIG. As a result, the transported object can be separated from the transport surface of the roller conveyor 1 on the ball caster transport direction changing tool 2. That is, since the transported object is lifted up from the transporting surface of the roller conveyor 1 on the ball caster transport direction changing tool 2 and supported by the plurality of rotatable balls 222, the operator presses the transported object in any direction. As a result, the transport direction can be easily changed in the direction in which the transported object is pressed. The projection amount of the ball 222 from the upper end of the roller 11 is preferably 1 mm or more and 2 mm or less. Further, the upper edge of the ball caster case 224 and the surface (upper surface) of the top plate 404 of the pair of transfer direction conversion tool both end members 24 are positioned lower than the upper end of the roller 11.

  It is preferable that the conveying direction change tool both end members 24 further include a connection shaft that is provided on at least one side and that can be locked to a hook of a roller conveyor for connecting the roller conveyors. Specifically, as shown in FIG. 15 and FIG. 16, at least one of the conveying direction change tool both end members 24 is provided with a connection shaft 405. The transfer direction changing tool both end members 24 are continuous with at least one top plate 404, and extend outward and perpendicular to the outer plate 406 disposed on the outer surface of the roller conveyor main frame 13 and the outer plate 406. It has a rib 407 which holds the connecting shaft 405. The rib 407 includes a through hole whose central axis is parallel to the outer plate 406, and the connection shaft 405 is inserted through the through hole. In the present embodiment, two ribs 407 are provided, but the number of ribs 407 can be one or three or more. The connection shaft 405 may be fixed to the through hole of the rib 407 by welding or the like. Alternatively, the connection shaft 405 may be detachable from the through hole of the rib 407. By engaging the groove portions 402 of the connection hooks 400 of the other roller conveyors 1 with the connection shafts 405 of the transfer direction changing tool both end members 24, as shown in FIG. 17, orthogonal transfer paths can be arranged. The connection shaft 405 has the same height as the connection shaft 401 of the roller conveyor 1 in order to equalize the heights of the conveyance surface of the roller conveyor 1 and the conveyance surfaces of other roller conveyors 1 connected orthogonally. Preferably, they are arranged as follows.

  As shown in FIG. 18, a stopper 408 may be provided on the top surface of the top plate 404 of the other transfer direction change tool both end members 24 to prevent the transferred object from falling off the roller conveyor. As the stopper 408, for example, one or two or more bosses, prismatic members, plate members and the like can be provided.

  The connection shaft 405 may be provided on both of the transport redirectors 24 as shown in FIGS. By doing this, as shown in FIG. 21, it is possible to obtain a substantially cross-shaped transport path. Alternatively, as shown in FIG. 22, it is possible to use a substantially crank-shaped transfer path.

<Advantage>
Since the ball caster conveyance direction changing tool 2 can be installed between the rollers 11 of the roller conveyor 1, the conveyance direction of the object to be conveyed can be changed at any place in the roller conveyor 1. The ball caster conveyance direction changer 2 includes a plurality of rotatable ball casters 221, and the upper end of the ball 222 of the ball caster 221 is positioned above the conveyance surface of the roller 11. The conveyance direction can be easily switched by the object being separated from the conveyance surface above and the operator pressing the object in any direction. Moreover, the said ball | bowl caster conveyance direction change tool 2 can connect the roller conveyor which branches a conveyance path in arbitrary places by having the connection shaft 405 which the connection hook 400 of the other roller conveyor 1 can engage. it can. Thus, the efficiency of the transfer operation can be improved, and the installation, transfer, and change of the transfer path by the roller conveyor 1 can be easily performed.

<Other Embodiments>
The said ball | bowl caster conveyance direction change tool is not limited to embodiment mentioned above.

  In the embodiment described above, one connecting shaft is inserted into the through holes of the two ribs of the transfer direction changing tool both end members, but one connecting shaft is provided between the two ribs without the through hole. It can be set as a structure fixed by welding etc. Alternatively, the two connection shafts may be fixed by welding or the like on the surface opposite to the opposite surface of the two ribs having no through hole.

  Although the said embodiment demonstrated by the roller conveyor which one roller axis | shaft has one column-shaped roller, the one said roller axis | shaft has a several cylindrical shape or disk shaped roller, The said conveyance to the so-called wheel roller conveyor It is also possible to install a turning device.

  Although the said transfer direction change tool demonstrated the structure which has a connection shaft in the said embodiment, it may change to a connection shaft and may have a hook for connecting the said transfer direction change tool to another roller conveyor. . In this case, it is preferable that the hooks have the same configuration as the hooks of the roller conveyor, and it is more preferable that the hooks be arranged such that the openings of the hooks are open upward.

  It is expected that the use of roller conveyors will be expanded in the field of farming and harvesting of outdoor vegetables and fruit trees, carrying in and out of nursery boxes in the house, loading and unloading with trucks etc. in the workplace, etc. At other work sites, many similar work conditions are found, and the simplicity and functions of the present invention are expected to be utilized and played a large part.

DESCRIPTION OF SYMBOLS 1 roller conveyor 11 roller 12 roller shaft 13 roller conveyor main frame 14 roller conveyor conveyance surface 15 frame space (space surrounded by an adjacent roller and a pair of main frames)
2 Ball Caster Transfer Redirection Changer 21 Ball Caster Transfer Redirection Changer Single Unit 22 Ball Caster Transfer Redirection Changer Two Base Integrated Type 221 Ball Caster 222 Ball 223 Ball Top 224 Ball Caster Case 225 Upper End of Case Holding Ball 226 Ball Caster Turning / turning surface 23 Ball caster fixed horizontal frame 24 Conveying direction change tool both end members 25 Ball caster fixed frame 241 Conveying direction change tool both end members alone 242 Conveying direction changing tool both end members-Two base integrated type 243 U-shaped groove Direction change tool both end member-provided for 2 base integral type)
Reference Signs List 3 ball caster fixing bolt nut 400 connecting hook 401 connecting shaft 402 groove 403 side plate 404 top plate 405 connecting shaft 406 outer plate 407 rib 408 stopper

Claims (5)

Between a plurality of rollers provided at equal intervals, a roller shaft supporting the rotation of the same roller, a roller conveyor mainly composed of a pair of left and right roller conveyors supporting both ends of the same roller shaft, between adjacent rollers of the same roller conveyor The transport direction change tool which temporarily places at any position of and lifts the bottom of the box being transported using two or more sets, and switches the transport direction of the transport box,
The transport direction changer includes, as main components, a plurality of ball casters provided with a reversed top and bottom, a ball caster fixed horizontal frame for fixing the ball casters, and a pair of left and right transport direction changer end members.
The plurality of ball casters are provided in one or two rows on the ball caster fixed horizontal frame,
The tops of the balls of the plurality of ball casters are at a position higher than the conveying surface formed by the plurality of rollers, and the upper edge of the case for holding the balls of the plurality of ball casters is formed by the plurality of rollers. Set to a position lower than the transport surface,
The pair of left and right transport direction change tool both end members are angle-shaped members, one surface of which is disposed along the upper surface of the pair of left and right roller conveyor main frames, and the plurality of rollers Set lower than the transport surface to be formed,
The other side of the angle-shaped member is provided along the inner surface of the pair of left and right roller conveyor main frames, and a slight gap is provided vertically as a vertical member, and the lower end of the vertical member is fixed to the ball caster horizontal The structure connected with both ends of the frame
The pair of left and right conveying direction change tool end members have a length obtained by subtracting the shaft diameter of the roller shaft and a clearance of about 1 mm from the installation distance of the roller shaft in the length of the member
The main components are structured so as not to contact the roller end side surface and the roller outer cylindrical surface,
The space between the adjacent rollers and the roller conveyor main frame is bridged over a pair of left and right roller conveyor main frames, and placed in a continuous frame space or in a single frame space without fixing means. A ball caster conveyance direction change tool characterized by being installed alone and being used. The ball caster conveyance direction change tool according to claim 1, wherein a plurality of the ball caster conveyance direction change tools are coupled and used as an integral structure,
An integral structure in which the pair of left and right transport direction change tool both end members are formed as one continuous member, and an inverted U-shaped groove opened at the lower end portion is provided at a portion where the vertical member of the same member interferes with the roller shaft Ball caster conveyance direction change tool characterized by. The roller conveyer is installed at an arbitrary position of a roller conveyer having a pair of roller conveyer main frames and a plurality of rollers juxtaposed to the roller conveyer main frame, and the conveying direction of the conveyed object conveyed by the roller conveyer is It is a transport direction changer to switch,
A plurality of ball casters, each having a rotatable ball, arranged in at least one row;
A ball caster fixed frame on which the ball caster is mounted and fixed;
The ball caster fixing frame is supported by the roller conveyor with the plurality of ball casters disposed between the rollers of the roller conveyor and the upper end of the ball positioned above the conveying surface of the rollers.
An upper end edge of a case for holding a ball of the ball caster is located below a conveying surface formed by the plurality of rollers. A ball caster conveyance direction change tool according to claim 3, wherein
The plurality of ball casters are arranged in at least two rows,
In the ball caster fixed frame,
At least two rows of ball caster fixed horizontal frames fixed and spaced apart and juxtaposed with each other;
A ball caster transfer direction changing tool comprising a pair of transfer direction changing tools both end members connected to both ends of the at least two rows of ball caster fixed horizontal frames and supported by the roller conveyor main frame. A ball caster conveyance direction change tool according to claim 2 or claim 4, wherein
A ball caster conveyance direction change tool further comprising a connection shaft provided on at least one of the pair of conveyance direction change tool both end members and capable of locking a hook of a connected roller conveyor for connecting roller conveyors at right angles.

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