JP6138580B2 - Roller conveyor transfer device used in the field - Google Patents

Description

  The present invention relates to a roller conveyor conveying device that is used across a buttock in a field.

  The form of a large-scale field in Japan at present is a form in which a work road is provided in the field separately from the farm road. The laying pitch at which the working road is provided is a maximum of 30 meters pitch because the tractor-mounted boom sprayer used for spraying agricultural chemicals spreads to 15 meters on both wings.

  Harvested products such as vegetables are packed in a field, and the boxes packed with the harvested products (hereinafter referred to as luggage) are transported toward a transport vehicle that has entered the work road. Most of them are transported using human power or transport carts, but there are cases where roller conveyors are introduced. In this case, it is necessary to arrange the roller conveyors in series for about 18 meters in consideration of the width of the work road of about 3 meters at 15 meters which is half of the work road pitch of 30 meters. Since the length of a practical roller conveyor is about 3 meters, about 6 roller conveyors are arranged.

  The current roller conveyor installation methods include a method of arranging directly on the top of the ridge, and a method of arranging sleepers and arranging them on the sleepers, both of which use the upper surface of the culm after harvesting, and the harvesting work proceeds The work of increasing / decreasing, moving, moving and removing is frequently required.

  In addition, the field is often an inclined field with an inclination as a whole, and at the same time it is locally high and low, and there are irregularities in the ridges and ridges. For this reason, the roller conveyor may be inclined. In particular, the inclination in the width direction perpendicular to the conveying direction of the roller conveyor becomes a derailment factor of the load. For this reason, when the conveyance distance is long or the inclination is large, human intervention is required to avoid the derailment of the load, which may reduce the work efficiency. Furthermore, when using the upper surface of the heel, the operator works on the middle waist, and the burden on the waist of the worker is large.

  In order to solve the above-mentioned problems, a means for adjusting the inclination angle in the width direction of the roller conveyor (hereinafter referred to as an inclination angle adjusting means) and at least three legs, and a means for connecting to another roller conveyor conveying device There is disclosed a roller conveyor conveying device having a (Japanese Patent Laid-Open No. 2012-15849). Since this conveyor transport apparatus has an inclination angle adjusting means, the inclination of the roller conveyor can be adjusted to be substantially horizontal. Moreover, a gutter groove part can be easily moved by using a leg part as a wheel. However, there are at least three leg portions per roller conveyor conveyance device. For example, when six units are used in series, the number of leg portions is at least 18. Accordingly, it is necessary to adjust the positions of at least 18 legs along the ridges. In order to improve work efficiency, it is desired to reduce the number of necessary legs and to be easily adjustable.

JP 2012-15849 A

  The present invention has been made in view of such circumstances, and provides an in-field roller conveyor transporting device that has a small number of leg portions and is easy to use in a buttock of a farm field, and has a high work efficiency corresponding to an inclined field. It is the purpose.

In-field use roller conveyor conveying device made to solve the above problems,
A pair of frames disposed substantially in parallel, a plurality of rollers spanned between the pair of frames, a locked bar disposed on the pair of frames on one end side in the transport direction, and the other end side in the transport direction A roller conveyor having hooks disposed on;
A support member connected to one end side in the transport direction of the roller conveyor,
The support member is
A support portion for supporting the pair of frames from below;
A pair of legs connected below the support,
The support part is
A conveyance direction position adjusting means for adjusting the connection position with the roller conveyor in the conveyance direction;
Inclination angle adjusting means for adjusting the inclination angle in the width direction of the roller conveyor.

  Since the roller conveyor transport device has means for adjusting the connecting position of the support portion and the roller conveyor in the transport direction, the roller conveyor is maintained while maintaining the position of the leg portion connected to the support portion in the groove portion. Can be adjusted to a position with good working efficiency. Moreover, since this conveyance direction position adjustment means can be utilized for the position adjustment of the engagement between the hook and the locked bar, a plurality of roller conveyor conveyance devices can be easily connected.

  In addition, since the roller conveyor transport device has means for adjusting the inclination angle in the width direction of the roller conveyor, the roller conveyor is substantially horizontal even when there is a field inclination or local unevenness. Can be adjusted. This eliminates the need for human intervention and increases the work efficiency of farm work.

  As a leg part of the said roller conveyor conveyance apparatus, it is good to have a wheel. By having wheels on the legs, movement within the field can be easily performed.

  The hook of the roller conveyor transport device may have a locking portion formed in a groove shape, and the width of the locking portion and the diameter of the locked bar may be substantially equal. Thus, by making the width of the locking portion and the diameter of the locked bar substantially equal, it is possible to suppress the lateral movement that occurs between the roller conveyors when the roller conveyor transport device is connected. Therefore, even when twist is applied to the roller conveyor due to the unevenness of the ground, misalignment is unlikely to occur in the connecting portion of the roller conveyor, and luggage retention and derailment are unlikely to occur during cargo transportation.

  The locking portion may be formed in an inverted U shape. When the latching portion has an inverted U shape, the latching can be easily removed simply by lifting the roller conveyor transport device on the hook side. Therefore, when it is necessary to cross the roller conveyor during farm work, the roller conveyor can be easily traversed without making a large turn by lifting the roller conveyor transport device.

  The roller conveyor transport device may include a sealing unit that seals the opening side of the locking portion. By sealing the opening side, the bar to be locked is fixed to the locking portion, and it is possible to more reliably prevent the locking from being released due to vibration or the like during movement. In addition, even when one side of the leg portion is lifted due to unevenness in the field, the roller surface is unlikely to be discontinuous because the bar to be locked does not move to the opening side of the locking portion. Furthermore, since only the locking portion is sealed, the adjustment of the angle of the roller surfaces of the two roller conveyors is not affected, and the angle can be adjusted freely.

  The support part of the roller conveyor transporting apparatus has a horizontal frame that supports the pair of frames from below and a pair of vertical frames that support the horizontal frame, and the horizontal frame is one end as the tilt angle adjusting means. It is good to be supported by one vertical frame on the side and fixed to the other vertical frame at a plurality of vertical positions on the other end. By configuring the support portion in this manner, the fixing position of the horizontal frame on the other vertical frame side can be changed, and the inclination angle in the width direction of the roller conveyor can be adjusted.

  As the inclination angle adjusting means of the roller conveyor conveyance device, it is preferable to have means for fastening the horizontal frame and the other vertical frame together so that the position can be adjusted. Since the horizontal angle frame can be fixed at an arbitrary position of the vertical frame by making the inclination angle adjusting means co-tightening structure, it is possible to adjust the inclination angle in the width direction of the roller conveyor steplessly. Therefore, the inclination angle in the width direction of the roller conveyor can be adjusted to a more optimal angle.

  It is good to have a means to fasten together a pair of above-mentioned frames and the above-mentioned horizontal frame as a conveyance direction position adjustment means of the above-mentioned roller conveyor conveyance device. Since the pair of frames can be fixed at an arbitrary position of the horizontal frame by using the co-tightening structure for the conveyance direction position adjusting means, the position adjustment of the roller conveyor in the conveyance direction can be performed steplessly. Therefore, the position of the roller conveyor in the transport direction can be adjusted to a more optimal position.

  As described above, the roller conveyor transport apparatus of the present invention can be realized with a two-wheel configuration, has fewer wheels than those of the above publication, and further has means for adjusting the connection position between the roller conveyor and the support portion in the transport direction. Since it has, it is easy to make adjustments according to the collar, and the work efficiency is good. Moreover, since the roller conveyor conveyance apparatus of this invention has a means to adjust the inclination | tilt angle of the width direction of a roller conveyor, even if there exists an inclination of a farm field or a local unevenness | corrugation, it can utilize easily.

It is a schematic side view of the roller conveyor conveyance apparatus which concerns on one Embodiment of this invention. It is a schematic front view of the roller conveyor conveyance apparatus which concerns on one Embodiment of this invention. It is a schematic block diagram of the hook part of the roller conveyor conveying apparatus which concerns on one Embodiment of this invention. FIG. 3 is a schematic cross-sectional view taken along the line AA in FIG. 2 of the support portion of the roller conveyor transport device according to the embodiment of the present invention. It is a schematic front view of the roller conveyor conveyance apparatus which concerns on embodiment different from the roller conveyor conveyance apparatus of FIG. FIG. 6 is a schematic cross-sectional view taken along line AA of the support portion of the roller conveyor conveyance device in FIG. 5. It is a schematic front view of the roller conveyor conveyance apparatus leg which concerns on embodiment different from the leg part of the roller conveyor conveyance apparatus of FIG.

  Embodiments of the present invention will be described below with reference to the drawings as appropriate.

[First embodiment]
<Roller conveyor transport device>
The roller conveyor conveyance device 1 in FIG. 1 is a roller conveyor conveyance device that is used across a ridge in a farm field. The roller conveyor transport device 1 includes a roller conveyor 2 and a support member 3 connected to one end side in the transport direction of the roller conveyor 2.

(Roller conveyor)
The roller conveyor 2 includes a pair of frames 21 (hereinafter referred to as conveyor frames) arranged substantially in parallel, a plurality of rollers 22 spanned between the conveyor frames 21, and one end side of the roller conveyor 2 in the conveying direction. It has a locked bar 23 disposed on the pair of conveyor frames 21 and a hook 24 disposed on the other end side in the conveying direction.

  The conveyor frame 21 is a frame for spanning the rollers 22, and a known object can be used. The conveyor frame 21 has three surfaces of an upper wall 211, a side wall 212, and a lower wall 213, and has a substantially U-shape that opens in the direction opposite to the roller 22 side when viewed from the front (the conveying direction of the roller conveyor). (FIG. 2). The material of the conveyor frame 21 includes steel, stainless steel, aluminum, resin, etc., but aluminum is preferable. The aluminum conveyor frame is lightweight, easy to carry, and excellent in corrosion resistance. Therefore, the aluminum conveyor frame is suitable for the roller conveyor conveyance device 1 that is used outdoors and involves movement.

  Although it does not specifically limit as a width | variety of the conveyor frame 21, The thing a little wider than the width | variety of a load is preferable, for example, a thing of 360 mm can be used. Although it is necessary to select the length of the conveyor frame 21 according to the size and shape of the field to be used, the interval of the work path, etc., for example, a 3000 mm one is used, and a plurality of the roller conveyor conveying devices are connected and used. can do. The height of the conveyor frame 21 is selected from the frame strength and ease of handling. For example, a frame having a length of 3000 mm and a width of 360 mm can be used with a height of 65 mm.

  A plurality of rollers 22 are laid across the conveyor frame 21 and play a role of transporting loads. As the material of the roller 22, the same material as the conveyor frame 21 is used. The width of the roller 22 is determined according to the conveyor frame 21. As for the diameter and interval of the rollers 22, it is preferable that the load can be supported by about four, and the load received by one roller is less than the allowable load. For example, the diameter is 45 mm, the pitch is 100 mm, the roller The length can be 300 mm.

(hook)
A hook is demonstrated using the one roller conveyor conveyance apparatus 1a of FIG. 3, and the other roller conveyor conveyance apparatus 1b. The two roller conveyor transport devices can be connected by locking the hook 24a of one roller conveyor transport device 1a and the locked bar 23b of another roller conveyor transport device 1b.

  A pair of to-be-latched bar | burr 23b is substantially cylindrical shape, and is respectively fixed to the surface on the opposite side to a roller about a pair of conveyor frame 21b. The fixed position of the bar to be locked 23b is based on the wheel contact surfaces of the rollers 221a and 221b that are close to each other between the conveyor frame 21a and the conveyor frame 21b when engaged with the locking portion 241a of the hook 24a. The height is determined to be approximately the same. The method for fixing the locked bar 23b to the conveyor frame 21b is not particularly limited, and for example, welding can be used. The material of the locked bar 23b is not particularly limited, but stainless steel or plated iron can be used.

  The lower limit of the diameter of the cylinder of the locked bar 23b is preferably 4 mm, more preferably 6 mm. When the diameter of the column of the bar 23b to be locked is less than the lower limit, the bar 23b may be deformed due to insufficient strength. On the other hand, the upper limit of the diameter of the column of the bar to be locked 23b is preferably 15 mm, and more preferably 10 mm. When the diameter of the cylinder of the bar 23b to be locked exceeds the above upper limit, the groove width of the locking portion 241a of the hook 24a becomes large, and the strength of the hook 24a may be insufficient.

  The lower limit of the height of the column of the bar to be locked 23b is preferably 10 mm, and more preferably 20 mm. When the height of the cylinder of the locked bar 23b is less than the lower limit, the locking with the hook 24a becomes insufficient, and the locking between the hook 24a and the locked bar 23b is released due to vibration during movement or the like. There is a fear. On the other hand, the upper limit of the column height of the bar to be locked 23b is preferably 40 mm, and more preferably 30 mm. When the upper limit of the height of the column of the bar to be locked 23b exceeds the above, the protrusion from the conveyor frame 21b becomes too large, and there is a possibility that it becomes an obstacle during work such as relocation.

  The hook 24a has a substantially square plate shape in plan view, and a part of the hook 24a protrudes from the conveyor frame 21a and is fixed. Although it does not specifically limit as a fixing position of the hook 24a, For example, the lower side of the hook 24a can be fixed to the position which substantially corresponds with the lower side of the side wall 212 of the conveyor frame 21a. The method of fixing the hook 24a is not particularly limited, but can be fastened with, for example, a bolt. The hook 24a may be firmly fixed by fastening two or more places with bolts. The material of the hook 24a is not particularly limited, but the same material as the locked bar 23b can be used.

  The hook 24a has a groove-like locking portion 241a at the protruding portion. The locking portion 241a can be locked with the locked bar 23b of the conveyor frame 21b.

  The lower limit of the length of the hook 24a (the length in the transport direction) is preferably 50 mm, and more preferably 70 mm. When the length of the hook 24a is less than the above lower limit, the length of the portion to be fixed to the conveyor frame 21a becomes short, and there is a possibility that it cannot be fixed sufficiently. On the other hand, the upper limit of the length of the hook 24a is preferably 130 mm, and more preferably 90 mm. If the length of the hook 24a exceeds the above upper limit, it may become an obstacle during work such as relocation.

  The lower limit of the protruding portion of the hook 24a (the length of the portion protruding from the front edge in the conveying direction of the conveyor frame) is preferably 20 mm, and more preferably 30 mm. When the length of the protruding portion of the hook 24a is less than the lower limit, the length of the portion that is locked to the conveyor frame 21b is shortened, which may make locking difficult. On the other hand, as an upper limit of the length of the protrusion part of the hook 24a, 60 mm is preferable and 40 mm is more preferable. When the length of the protruding portion of the hook 24a exceeds the above upper limit, there is a possibility that it becomes an obstacle during work such as relocation.

  The lower limit of the height of the hook 24a (the length in the height direction of the conveyor frame) is preferably 20 mm, and more preferably 30 mm. When the height of the hook 24a is less than the above lower limit, the length of a locking portion 241a to be described later cannot be taken sufficiently, and the locking may be released due to vibration during movement or the like. On the other hand, the upper limit of the height of the hook 24a is preferably 60 mm, and more preferably 40 mm. When the height of the hook 24a exceeds the above upper limit, the upper end of the hook 24a exceeds the upper end of the conveyor frame 21a, which may cause an obstacle such as a collision when the load is transported.

  The lower limit of the thickness of the hook 24a (the length in the width direction of the conveyor frame) is preferably 3 mm, and more preferably 5 mm. When the thickness of the hook 24a is less than the lower limit, the hook 24a may be deformed due to insufficient strength. On the other hand, the upper limit of the thickness of the hook 24a is preferably 10 mm, and more preferably 7 mm. When the thickness of the hook 24a exceeds the above upper limit, it may be difficult to handle due to an increase in weight or the like.

  The locking portion 241a has a groove shape, and is provided in an inverted U shape from the substantially lower central position of the portion where the hook 24a protrudes from the conveyor frame 21a to the middle of the hook 24a. The groove width of the locking portion 241a is substantially equal to the diameter of the locked bar 23b. Moreover, it is preferable that the locking part 241a is in a position where the roller pitch of the connecting part of the roller conveyor transport device 1a is substantially equal to the roller pitch of the roller conveyor transport device 1a in a state of being engaged with the locked bar 23b.

  The lower limit of the difference between the length of the locking portion 241a (the length of the groove-like portion starting from the lower side of the hook 24a) and the height of the hook 24a is preferably 5 mm, and more preferably 10 mm. When the difference is less than the lower limit, the strength of the hook 24a is insufficient and the hook 24a may be deformed. On the other hand, the upper limit of the difference between the length of the locking portion 241a and the height of the hook 24a is preferably 30 mm, and more preferably 20 mm. When the upper limit of the difference exceeds the above, the length of the locking portion 241a cannot be taken sufficiently, and the locking may be released due to vibration during movement or the like.

  The connection of one roller conveyor transport device 1a and the other roller conveyor transport device 1b using the hook 24a and the locked bar 23b lifts the end of the one roller conveyor transport device 1a on the side having the hook 24a. The groove portion of the locking portion 241a of the hook 24a can be lowered from above so as to engage with the locked bar 23b of the other roller conveyor transport device 1b.

  After the locked bar 23b is locked to the locking portion 241a of the hook 24a, sealing means for sealing the opening side of the locking portion 241a may be provided. For example, when the hook is made of iron, the hook can be sealed using a soft material such as rubber that can be fitted into the locking portion 241a and a magnet sheet bonded thereto (hereinafter referred to as a locking sealing material). . That is, after connecting the two roller conveyor conveying devices, the locking sealing material is disposed so that the locking portion 241a is sealed by the soft material portion, and fixed to the hook by the magnetic force of the magnet sheet. The locking portion 241a can be sealed. By sealing the locking portion 241a in this way, the locked bar 23b is fixed to the locking portion 241a, and it is possible to more reliably prevent the locking from being released due to vibration or the like during movement. In addition, even when one side of the leg portion is lifted due to the unevenness of the farm field, the roller surface is unlikely to be discontinuous because the locked bar 23b does not move to the opening side of the locking portion 241a. Furthermore, since only the locking portion 241a is sealed, there is no influence on the adjustment of the angle of the roller surfaces of the two roller conveyors, and the angle adjustment can be performed freely.

(Support member)
The support member 3 includes a support portion 31 that supports the pair of conveyor frames 21 from below, and a pair of wheels 32 that are coupled to the lower portion of the support portion 31 (FIG. 2).

  The support portion 31 is located above the lower frame 311, the lower frame, a horizontal frame 312 (hereinafter referred to as an upper frame) that supports the conveyor frame 21 from below, and a pair of vertical frames that support the upper frame 312. Further, a support column 313 supporting the one end of the upper frame 312 and a co-fixing fixed column 314 capable of co-fixing the upper frame 312 at an arbitrary vertical position are provided. The material of the support portion 31 is not particularly limited, but the same material as the conveyor frame 21 can be used.

  The lower frame 311 fixes the shaft support column 313, the joint fastening fixed column 314, and the pair of wheels 32. A shaft support column 313 and one wheel 32 are fixed to one end side of the lower frame, and a fastening side column 314 and another wheel 32 are fixed to the other end side. At that time, the pivot support column 313 and the joint fastening fixed column 314 are fixed to the upper position of the lower frame, and the pair of wheels 32 are fixed to the lower position of the lower frame. Although it does not specifically limit as a fixing method, For example, the clamp | tightening by a volt | bolt can be used.

  As the length of the lower frame, it is necessary to make the conveyor frame 21 fit in the space between the pivot support column 313 and the co-fastening fixed column 314. For example, when the conveyor frame 21 having a width of 360 mm is used, Can be 560 mm long.

  The upper frame 312 includes a frame portion 3121 and a connecting flange portion 3122 with the conveyor frame 21. The frame portion 3121 is spanned between the shaft support side column 313 and the fastening side fixed column 314, and protrudes to the outside of the joint fastening side column 314 (opposite side to the shaft side column).

  The lower limit of the length of the portion where the frame portion 3121 protrudes to the outside of the co-fastening fixed column 314 is preferably 50 mm, and more preferably 80 mm. When the length of the protruding portion is less than the lower limit, there is a possibility that the length is insufficient when the frame portion is rotated to incline the conveyor frame, and it cannot be fixed by the co-fastening fixing side column 314. On the other hand, the upper limit of the length of the protruding portion of the frame portion 3121 to the outer side of the joint fastening fixed column 314 is preferably 150 mm, and more preferably 120 mm. When the length of the protrusion exceeds the upper limit, the protrusion from the co-fastening fixed column 314 becomes too large, which may cause an obstacle during work such as relocation.

  The connecting flange portion 3122 has a substantially rectangular plate shape in plan view, and supports and fixes the conveyor frame 21 from below. Although the magnitude | size of the connection flange part 3122 will not be specifically limited if there exists a magnitude | size and intensity | strength which can fix the conveyor frame 21, For example, the thing of width 400mm, length 100mm, and thickness 5mm can be used. A method for fixing the connecting flange portion 3122 to the frame portion 3121 is not particularly limited, but welding or tightening with bolts can be used.

  The support portion 31 has a clam vise as a fastening member for fixing the pair of conveyor frames 21 to the connecting flange portion 3122. A vise is a mechanism that sandwiches and fixes an object between two caps, and a shrimp vise means that the shape of the cap is a barco type or a C type. As a method of fixing using the giant clam vise, the fixing locations 991 where the lower walls 213 and the connecting flange portions 3122 of the pair of conveyor frames 21 are in contact with each other may be sandwiched and fixed together with the giant clam vise. Since the shrimp vise is used for fixing, the conveyor frame 21 can be fixed to the connecting flange portion 3122 at an arbitrary position, and therefore the position of the conveyor conveyor 2 can be adjusted steplessly in the transport direction.

  The pivot support column 313 supports one end of the upper frame 312. The shaft support column 313 has a plurality of bolt holes 3131 on the conveying direction side of the roller conveyor 21, and one end of the upper frame 312 is connected to one of them by a bolt.

  Further, the upper frame 312 is connected to the pivot support column 313 so that the upper frame 312 can rotate about the bolt position as a rotation axis. The rotation connecting method is not particularly limited. For example, the pivot support column 313 is composed of two plate-like parts (FIG. 4), and the two plate-like parts of the pivot support column 313 are the upper frame. A method of holding and fixing 312 with a bolt 3132 can be used.

  Although it does not specifically limit as a space | interval of the several bolt hole 3131, For example, when using the roller conveyor of 3000 mm in length, it can be set to 50 mm. The height of the conveyance surface can be adjusted by properly using the positions of the bolt holes. Moreover, when connecting and using the several roller conveyor conveying apparatus 1, a gradient can be given to a conveyance surface by changing the position of a bolt hole for every roller conveyor conveying apparatus 1. FIG. When the field is almost flat, a load of 50 mm per 3000 mm length may be used to carry the load unattended by gravity. When there is a large gradient in the field, there are cases where a large number of roller conveyor transport devices 1 are not connected, but two or three are connected and used, and the discontinuous portion is manually reloaded. Even in such a case, a roller surface having an appropriate gradient can be formed by changing the position of the bolt hole.

  The height of the pivot support column 313 (height from the wheel ground contact surface) is not particularly limited except that it is adjusted according to the physique of the operator and the height of the platform of the transport vehicle, but the height of the pivot support column 313 is not limited. The lower limit of the thickness is preferably 600 mm, and more preferably 800 mm. When the height of the pivot support column 313 is less than the above lower limit, the height of the roller 22 becomes too low, and the lifting and lowering of the load becomes a middle waist work, which may increase the burden of farm work. On the other hand, the upper limit of the height of the shaft support column 313 is preferably 1500 mm, and more preferably 1200 mm. If the height of the pivot support column 313 exceeds the above upper limit, the height of the roller 22 becomes too high, and there is a risk that the burden of the work of placing the load on the roller will increase.

  The co-clamping fixed column 314 is composed of two plate-like portions sandwiching the upper frame 312, and the other end of the upper frame 312 (the end opposite to the end supported by the pivot support column 313). Support). The upper frame 312 can rotate around a position connected to the pivot support column 312 while being sandwiched by the fixed fastening fixed column 314. At this time, the position 992 (see FIGS. 3 and 4) at which the upper frame 312 and the co-clamping fixed column 314 cross each other corresponds to the rotation of the upper frame 312 around the connection position with the shaft support column 313. Moves up and down. The inclination of the upper frame 312 can be adjusted by sandwiching and fixing with a giant clam vise at an arbitrary intersection position 992. The upper frame 312 is connected to the conveyor frame 21, and the angle of the roller conveyor 2 can be changed according to the inclination of the upper frame 312. Therefore, by adjusting the two plate-like portions of the upper frame 312 and the fastening side support column 314 at an angle at which the inclination of the roller conveyor 2 becomes a desired inclination, the inclination angle in the width direction of the roller conveyor is adjusted. be able to.

  The height of the co-fastening fixed column 314 (height from the wheel contact surface) is not particularly limited, but the lower limit of the height of the co-fastening fixed column 314 is the same as the height of the pivot support column 313. Is preferred. When the height of the co-fastening fixed column 314 is less than the lower limit, the range in which the inclination of the roller conveyor can be adjusted when the rotation axis of the upper frame 312 is set to the highest position of the shaft support column 313 is limited. The necessary slope may not be set. On the other hand, the upper limit of the height of the co-fastening fixed column 314 is preferably 150 mm higher than the height of the co-fastening fixed column 314. If the height of the co-fastening fixed column 314 exceeds the above upper limit, even if the rotation axis of the upper frame 312 is set at the highest position of the pivot support column 313, if it is clamped at a portion exceeding the upper limit, it will fall over Not only there is a fear, it may become an obstacle during relocation work.

  Although it does not specifically limit as a connection position of a pair of wheel 32, It can connect with the lower part of the axial support side support | pillar 313 and the co-fastening fixed side support | pillar 314, respectively. Although it does not specifically limit as a wheel to be used, A well-known wheel, for example, a spoke wheel used for a bicycle or the like and a tire whose outer periphery is covered with a soft material such as rubber and a tube can be used. Although it does not specifically limit as a diameter of the wheel 32, For example, the thing of 20 inches (about 500 mm) generally used with the bicycle can be utilized.

  The rotating surface of the wheel 32 can be fixed by adjusting its direction to an arbitrary angle. As a method of adjusting the angle of the wheel 32, a known method used in a bicycle or the like can be used. Since the angle of the rotation surface of the wheel 32 can be fixed in an arbitrary direction, the field can be easily moved even in a farm field having a complicated ridge shape.

(advantage)
The roller conveyor transport device 1 can be realized in a two-wheel configuration, and further includes means for adjusting the connection position of the roller conveyor 2 and the support portion 31 in the transport direction, so that adjustment according to the collar portion is easy to perform. , Work efficiency is good. Moreover, since the said roller conveyor conveyance apparatus 1 has a means to adjust the inclination | tilt angle of the width direction of a roller conveyor, even if there exists an inclination of a farm field or a local unevenness | corrugation, it can utilize easily.

  Since the groove width of the locking portion 241 of the hook 24 is substantially equal to the diameter of the bar to be locked 23, the roller conveyor transport device 1 causes lateral movement that occurs between the roller conveyors 2 when the roller conveyor transport device 1 is connected. And can be laid in a substantially straight line. Therefore, even when a twist is applied to the roller conveyor 2 due to the unevenness of the ground, misalignment is unlikely to occur in the connecting portion of the roller conveyor 2, and luggage retention and derailment are unlikely to occur during cargo transportation. Therefore, even if it is a two-wheel structure with few wheels, a some roller conveyor conveying apparatus 1 can be connected and a load can be conveyed. Moreover, since it can utilize for adjustment with the engagement of a hook and a to-be-latched bar, a some roller conveyor conveying apparatus can be connected easily.

  Furthermore, the shape of the latching | locking part 241 of the hook 24 of the said roller conveyor conveyance apparatus 1 is reverse U shape. For this reason, when it is necessary to cross the roller conveyor during agricultural work, the roller conveyor conveying device 1 on the hook 24 side can be lifted up and the connection can be easily removed, and the roller conveyor can be easily crossed without making a large turn. be able to.

  Since the roller conveyor transport device 1 has means capable of sandwiching and fixing the fixing place 991 where the lower wall 213 of the conveyor frame 21 and the connecting flange portion 3122 are in contact with each other with a clam vise, the roller conveyor 2 is The position can be adjusted steplessly in the transport direction. Therefore, the support member 3 can be fixed to the roller conveyor 2 at a suitable position, and can be adapted to various shapes of the flanges and the conveyance paths.

  In the roller conveyor transport device 1, the upper frame 312 that supports the roller conveyor 2 rotates around the shaft support column 313, and is clamped and fixed together by the co-clamping fixed column 314, thereby fixing the roller frame 2 in the width direction. Means for stepless adjustment of the inclination. Thereby, even if there is an inclination of the field or local unevenness, the roller conveyor 2 can be adjusted to a suitable angle so as to be substantially horizontal. This eliminates the need for human intervention and increases the work efficiency of farm work.

[Second Embodiment]
(Support member)
As a second embodiment of the support member of the roller conveyor transport device of the present invention, a configuration in the case where the support portion and the leg portion are separated will be described.

  The support member 3 of the roller conveyor transport device 11 of FIG. 5 includes a support portion 31a (main support base) that supports the pair of conveyor frames 21 from below, and a leg portion 33a (subordinate support) that is connected to the lower portion of the support portion 31a. Stand).

  In the main support base 31a, the same parts as those of the support part 31 of FIG.

  The lower frame 315 of the main support base 31a has a frame portion 3151 and a connecting flange portion 3152.

  The frame portion 3151 of the lower frame 315 fixes the shaft support column 313 and the joint fastening fixed column 314. A shaft support column 313 is fixed to one end side of the frame portion 3151, and a joint fastening fixed column 314 is fixed to the other end side. At that time, the pivot support column 313 and the co-fastening fixed column 314 are fixed to the upper position of the lower frame. The fixing method is not particularly limited, but welding or bolt tightening can be used.

  The connection flange portion 3152 of the lower frame 315 has a substantially square plate shape in plan view, and fixes the sub support portion 33a below. Although the magnitude | size of the connection flange part 3152 is not specifically limited, For example, the thing of width 400mm, length 100mm, and thickness 5mm can be used. A method for fixing the connecting flange portion 3152 to the frame portion 3151 is not particularly limited, but welding or tightening with bolts can be used.

  The sub-support base 33a includes a horizontal frame 331 and a pair of wheels 32 fixed below the horizontal frame 331.

  The horizontal frame 331 of the sub-support base 33a has a frame portion 3311 and a connecting flange portion 3312.

  A frame portion 3311 of the horizontal frame 331 fixes the pair of wheels 32. One wheel 32 is fixed to one end side of the frame portion 3311 and the other wheel 32 is fixed to the other end side. At that time, the pair of wheels 32 are fixed to the lower position of the horizontal frame. The fixing method is not particularly limited, but welding or bolt tightening can be used.

  The connecting flange portion 3312 of the horizontal frame 331 has a substantially square plate shape in plan view, and supports and fixes the main support base 31a from below. Although the magnitude | size of the connection flange part 3312 is not specifically limited, It is preferable that it is substantially the same as the connection flange part 3152 of the lower frame 315 of the main support stand 31a. A method of fixing the connecting flange portion 3312 to the frame portion 3311 is not particularly limited, but welding or tightening with a bolt can be used.

  Although it does not specifically limit as a connection position of a pair of wheel 32, It can connect with the lower part of the axial support side support | pillar 313 and the co-fastening fixed side support | pillar 314, respectively. Although it does not specifically limit as a wheel to be used, The same thing as FIG. 1 can be utilized.

  In FIG. 5, the wheels 32 are fixed perpendicularly to the conveyance direction of the roller conveyor conveyance device 11. By fixing the wheel 32, there is no possibility that the direction of the wheel 32 changes due to vibration during movement, and stable movement can be achieved. The wheels 32 that are perpendicular to the conveying direction of the roller conveyor conveying device 11 are effective when the forming direction of the flange portion is parallel to the work path. This is because the roller conveyor transport device 11 is installed perpendicularly to the forming direction of the collar part toward the work path, while the moving direction of the roller conveyor transport device 11 is parallel to the forming direction of the collar part. Conversely, when the forming direction of the collar portion is perpendicular to the work path, the direction of the rotating surface of the wheel 32 is parallel to the conveying direction of the roller conveyor conveying device 11. In this case, a secondary support base (not shown) in which the wheels are fixed horizontally with respect to the transport direction may be used.

  As a method for connecting the main support base 31a and the sub support base 33a, for example, a bolt can be used. Or you may utilize the method which fixed the connection flange part 3122 and the pair of conveyor frame 21 of the support part 31 of 1st embodiment. That is, the main support base 31a and the sub support base 33a can be connected by fixing the flange portion 3152 of the main support base 31a and the flange portion 3312 of the sub support base 33a with a shrimp vise.

  In the roller conveyor transport device 11, a giant vise is used for the connection between the main support 31 a and the conveyor frame 21 and the connection between the main support 31 a and the sub-support 33 a. Therefore, for example, the main support 31 a and the conveyor frame 21. Can be connected diagonally (FIG. 6). Even if the rotation surface of the wheel 32 is fixed, the main support base 31a and the conveyor frame 21 can be attached obliquely, so that it is possible to install it with an angle with respect to the forming direction of the flange portion. it can.

[Third embodiment]
Another embodiment of the secondary support base of the roller conveyor transport device 11 of the present invention will be described. The slave support base 33b in FIG. 7 is a slave support base that can be connected to the roller conveyor transport device 11.

  The secondary support base 33b includes a horizontal frame 331 that supports the main support base 31a, and a pair of vertical frames 333 that support the horizontal frame 331. The horizontal frame 331 is the same as the horizontal frame 331 in FIG.

  The pair of vertical frames 333 of the sub-support base 33b supports the horizontal frame 331. The pair of vertical frames 333 each have the same number of bolt holes 3331. The bolt holes at corresponding positions between the pair of vertical frames are at the same height from the lower surface of the vertical frame. The pair of vertical frames are respectively connected by bolts to one end and the other end of the horizontal frame 331 in bolt holes 3331 at corresponding positions.

  The interval between the plurality of bolt holes 3331 is not particularly limited. For example, when a roller conveyor having a length of 3000 mm is used, it can be set to 50 mm. Further, the same number of bolt holes (not shown) may be provided on the side surface of the vertical frame 333 with a ½ pitch shift. Since the bolt holes shifted by 1/2 pitch are provided on the side surfaces, the height can be adjusted at intervals of 25 mm by using the vertical frame 331 rotated 90 degrees. Moreover, since the pitch between the bolt holes on each surface is widened compared to the case where the bolt holes at intervals of 25 mm are provided on the front surface, the frame strength is strong.

  Since the secondary support base 33b does not have wheels, it can be installed in a small space and can be easily moved. Therefore, it can be suitably used when the installation space is small or when a wide range of movement is not involved.

  The secondary support base 33b can change the height of the horizontal frame 331 by changing the position of the bolt hole to be connected, and can be used for adjusting the height of the roller conveyor.

[Other Embodiments]
The present invention is not limited to the above embodiment. For example,
In the first embodiment, the method of providing the locked bars 23 on the pair of conveyor frames 21 has been described, but the locked bars 23 may be bridged between the pair of conveyor frames 21. By spanning the conveyor frame 21, the strength of the locked bar 23 and the conveyor frame 21 is increased, and the durability is improved.

  In the first embodiment, as a method of connecting the upper frame 312 of the support portion 31 and the conveyor frame 21, the method of sandwiching and tightening and fixing with a giant clam vise has been described. It may be used.

  In the first embodiment, the horizontal frame 312 has been described with respect to the method of fixing the connection to the pivot support column 313 with bolts and the connection to the co-fastening fixed column 314 by joint tightening with a clam vise. The frame 312 may be coupled to the shaft support column 313 and the co-fixing fixed column 314 by co-clamping with a shrimp vise.

  In the first embodiment, as a method of inclining the roller conveyor in the width direction, the upper frame 312 is rotated, and the position where the two plate-like portions of the co-fastening fixed side column 314 and the upper frame intersect with each other in a giant clam vise. Although the method of pinching and fastening and fixing has been described, other pinching and fixing methods such as fixing with a vice may be used. A means for firmly fixing one or two places with bolts and nuts may be provided.

  As another method of inclining the roller conveyor in the width direction, a plate-like object (for example, a wooden board) is sandwiched between one conveyor frame 21 and the connecting flange portion 3122 of the support portion 31, and three pieces by a giant clam vise The inclination may be adjusted by tightening together. Although it does not specifically limit as thickness of a plate-shaped object, The thing of 5 mm to 15 mm can be utilized. In this way, the thickness of the plate-like material is used to incline, so that, for example, the incline is also provided when the conveyor frame 21 is disposed directly on the connecting flange portion 3312 of the sub-support base 33b shown in FIG. Will be able to.

  In the second embodiment, the configuration that does not have the height adjustment function has been described as the secondary support base 33a, but may have the height adjustment function. As the height adjustment function, for example, the same configuration as that of the slave support base 33b can be used. By having the height adjusting function, the height of the roller conveyor can be adjusted.

  Further, in the third embodiment, the configuration having the height adjustment function as the secondary support base 33b has been described, but the height adjustment function may not be provided. When the height adjustment function is not provided, the configuration is simplified, and an inexpensive and highly durable support base can be realized.

  As described above, the roller conveyor transport device according to the present invention has a small number of wheels and can be easily used in the ridges of the field, and is also compatible with inclined fields, so that the work efficiency is good. Therefore, it can be suitably used for crop harvesting work in the field.

DESCRIPTION OF SYMBOLS 1 Roller conveyor conveying apparatus 2 Roller conveyor 21 Conveyor frame 22 Roller 23 Locked bar 24 Hook 241 Locking part 3 Supporting member 31 Supporting part 311 Lower frame 312 Upper frame 31211 Frame part 3122 Connecting flange part 313 Axial support post 3131 Bolt Hole 3132 Bolt 314 Fastening fixed column 315 Lower frame 3151 Frame portion 3152 Connection flange portion 32 Wheel 331 Horizontal frame 3311 Frame portion 3312 Connection flange portion

Claims (8)

A pair of frames disposed substantially in parallel, a plurality of rollers spanned between the pair of frames, a locked bar disposed on the pair of frames on one end side in the transport direction, and the other end side in the transport direction A roller conveyor having hooks disposed on;
A support member connected to one end side in the transport direction of the roller conveyor,
The support member is
A support portion for supporting the pair of frames from below;
A pair of legs connected below the support,
The support part is
A conveying direction position adjusting means for adjusting a connecting position with the roller conveyor in a conveying direction; an inclination angle adjusting means for adjusting an inclination angle in the width direction of the roller conveyor;
An in-field roller conveyor transporting device having:   The roller conveyor transport device according to claim 1, wherein the pair of legs has wheels. The hook has a locking portion formed in a groove shape,
The roller conveyor conveyance device according to claim 1 or 2, wherein a width of the locking portion and a diameter of the locked bar are substantially equal.   The roller conveyor conveyance device according to claim 3, wherein the locking portion is formed in an inverted U shape.   The roller conveyor conveyance apparatus of Claim 3 or Claim 4 which has a sealing means which seals the opening side of the said latching | locking part. The support part is
A lateral frame that supports the pair of frames from below;
A pair of vertical frames that support the horizontal frame,
2. The structure according to claim 1, wherein the tilt angle adjusting means is configured such that the horizontal frame is pivotally supported by one vertical frame at one end side and can be fixed to the other vertical frame at a plurality of vertical positions on the other end side. The roller conveyor conveyance apparatus of any one of 5.   The roller conveyor conveyance device according to claim 6, further comprising means for fastening the horizontal frame and the other vertical frame together as the inclination angle adjusting means so that the position of the horizontal frame can be adjusted. The roller conveyor conveyance apparatus of Claim 6 or 7 which has a means to fasten together a pair of said frame and the said horizontal frame as said conveyance direction position adjustment means.

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