JP2979298B2 - Shellfish collecting machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shellfish collecting machine capable of efficiently collecting shellfish with a small number of workers.

[0002]

2. Description of the Related Art Conventionally, shellfish collection work in a tidal flat has been performed by manually digging up a tidal flat using a tool with a long handle that rakes in soil and sand called a plow basket. They were collecting shellfish and collecting shellfish.

[0003]

[Problems to be Solved by the Invention] However, when shellfish are collected in the conventional manner, shellfish are collected manually, so that shellfish can be collected efficiently during the limited time at low tide. As a result, shellfish collectors have problems such as unprofitability, which is one of the factors that make it difficult to provide shellfish to consumers at low cost. In recent years, the number of shellfish imported from foreign countries has increased, and improving the competitiveness of these inexpensive shellfish has become a compulsory subject. For this reason, in order to provide consumers with inexpensive shellfish, the development of a device that can efficiently collect a large amount of shellfish with a small number of workers within the limited time at low tide has been awaited. .

[0004] The present invention has been made in view of the above-mentioned conventional problems, and one object of the present invention is to scoop shellfish together with sand in a collecting section provided in front of a traveling machine body, and to transport the shellfish in a transport section. Sand and foreign substances are removed while being transported to the accommodation section of the machine, shellfish selected to a predetermined size can be efficiently collected in large quantities, and shellfish can be provided to consumers at low cost. The other purpose is to obtain the smoothness and stability of the aircraft's running during collecting work, reduce the power load during running, and efficiently sort and collect shellfish with little adhesion of sand even on sludge-like sandy ground it can. Furthermore, even if the aircraft oscillates up and down, left and right during the collection work, the collection part does not rise up from the sandy ground, it can always dig a certain depth and improve the collection efficiency To provide machines.

[0005]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention provides a traveling vehicle 14 having a housing 12 mounted thereon.
A collecting unit 16 attached to the front side of the traveling body 14 and having a salvage plate 28 for collecting shells in the sand as the traveling body 14 advances. A depth setting mechanism 18 for setting a collecting depth of the section 16; and a transport section 20 for introducing the shellfish collected by the collecting section 16 into the storage section 12.
0 is pivotally attached to the traveling body so that the front side can be moved up and down with the front side as a free end, and is disposed diagonally downward. A front end side protrudes forward from the traveling body and includes a frame member 52 whose front end side is provided so as to be movable up and down, and a depth setting section 25 attached to a lower side of the frame member.
The collecting unit is composed of a shellfish collecting machine attached to the frame member 52.

[0006] The depth setting section 25 may be a flat plate 26 arranged so that the lower surface is installed.

Further, the flat plate 26 may be provided so as to be rotatable around an axis at least about a direction intersecting the forward direction.

The transport section 20 comprises an endless conveyor 30. The front end of the endless conveyor 30 is pivotally supported by a frame member 52, and the rear end of the endless conveyor 30 is mounted on the traveling body 14 in a free state. The body 14 is provided with an elevating device 22 that moves up and down on the side near the front end of the endless conveyor 30. The collecting execution state and the non-collecting traveling state may be selectively set.

The traveling body 14 may be provided with an elastic support portion 34 for elastically supporting the side near the front end of the endless conveyor from above in a suspended state while collecting shellfish.

The traveling body 14 is provided with a support frame 36 having an inverted L-shape in a side view with an end protruding forward from the upper surface of the traveling body and having a forward end. It may be provided along the support frame 36.

The present invention also relates to a traveling machine body 14 having a housing 12 mounted thereon, and a collecting unit attached to a front side of the traveling machine body 14 for collecting shellfish in the sand as the traveling machine body 14 advances. 16 and a transport unit 20 for introducing shellfish collected by the collection unit into the storage unit. The collection unit is attached to the transport unit, and the transport unit 20 has a front side as a free end and the front side moves up and down. A cylinder mechanism 120 pivotally mounted on the traveling body and arranged obliquely downward to move the front end side of the transport unit 20 up and down, and provided at the front end side of the transport unit 20 to float and support the front end side of the transport unit. And a rolling wheel 122 rotatably provided as described above.
Collecting a shell comprising a swing shaft device 192 interposed between the transport unit 20 and the transport unit 20 and supporting the transport unit 20 while swinging the transport unit around an axis about the traveling direction of the traveling body 14 as an axis. Machine.

Further, an elastic support 208 may be provided at the rear end of the lower surface of the transport section 20 for elastically pushing and supporting the rear end of the transport section in the upward direction.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In a shellfish collecting machine according to the present invention, a traveling body having an accommodation portion mounted thereon and a shellfish attached to a front side of the traveling body and being in the sand as the traveling body advances. A collecting unit for collecting, a depth setting mechanism attached to the traveling body, setting a collecting depth of the collecting unit,
A transport unit for introducing the shellfish collected by the collection unit into the storage unit. When the collecting unit is set to a desired depth by the depth setting mechanism and the traveling machine is advanced, the collecting unit excavates in the sand and collects shellfish living in the sand together with the sand. When the collected shellfish is transported by the transport unit, sand is eliminated, and only the shellfish is stored in the storage unit provided on the aircraft. Therefore,
A large number of shells can be collected by a single operator who drives the traveling machine, so that the cost of collecting shells can be reduced and shellfish can be provided at a low price. The transporting unit is constituted by an endless band-shaped wire netting, but is not limited thereto, and may be constituted by an endless band-shaped netting made of leather, nonwoven fabric, other fibers, a string, or the like.

The depth setting mechanism includes a frame member projecting forward from the traveling body and a depth setting section attached to a lower side of the frame member, and the collecting section includes the frame member. It is good also as being attached to. The collection depth can be set simply by pivoting the base of the frame member to the fuselage side and landing this frame member on the collection sand ground. This frame member
The present invention is not limited to projecting forward from the traveling body, and may be configured to project from the transport unit side, for example.

Further, the depth setting portion may be a flat plate, and the flat plate may be provided so as to be rotatable around an axis at least in a direction intersecting with the forward direction. The flat body that has landed on the sandy ground can slide on the sandy ground, so that the collection section can be dug stably in the sandy ground, and the traveling body can be smoothly advanced. Further, the depth setting section is not limited to a flat body, and may be any section that can stably travel on the sandy ground, and may be configured by, for example, a guide roller, a guide wheel, or the like.

Further, the collecting unit may include a scooping plate protruding in the forward direction of the traveling machine, and the scooping plate may be provided so as to be able to set a scooping angle with respect to the forward direction of the traveling machine. It is possible to scoop and collect shellfish and sand in the sand with a scooping plate while the aircraft is running, and to continuously collect a large amount of shellfish in a short time. In addition, it is possible to improve the work efficiency by adjusting the amount of sand and shellfish introduced into the collecting section by setting the scooping angle. The scooping angle is generally set slightly downward from the horizontal direction, but is set in consideration of the unevenness of the collecting sand ground, the habitat of shellfish, and the like.

Further, the scooping plate may be provided directly on the front end side of the transport section. The collecting depth of the scooping plate can be easily set simply by lowering the entire end of the transport unit to the sand surface.

Further, the base end of the frame member is pivotally attached to a traveling body, and the front side thereof is attached so as to be able to move up and down substantially, and the transporting section comprises an endless conveyor, and the front end side of the endless conveyor is the frame member. The rear end side is mounted on the traveling body in a free state, and the traveling body is further provided with an elevating device for moving up and down the front end side of the endless conveyor. The conveyer may be configured to selectively move between a collecting execution state and a non-collecting traveling state by the collecting unit and the depth setting mechanism by the vertical movement of the front end side of the conveyor. By simply raising and lowering the front end side of the transport unit with the lifting device, the collection unit and the depth setting mechanism are raised and lowered via the frame member, and the posture can be quickly shifted between the collection effective state by the collection unit and the non-collection effective state, Collection efficiency can be improved while repeating collection and movement according to the distribution of shellfish on the sandy ground. The elevating device may be configured by a winch mechanism or a hoist mechanism that suspends and supports the transport unit from above, or may be configured by a cylinder mechanism that pushes up the transport unit from below.

Further, the traveling body may be provided with an elastic support portion for elastically supporting the side near the front end of the endless conveyor from above when the shellfish is being collected. In the state of collecting shellfish, the endless conveyor is supported by the elastic support member from the traveling aircraft side, and the load applied to the endless conveyor and the depth setting mechanism etc. is also supported by the traveling aircraft and the load is dispersed,
It is possible to prevent the balance of the sampling machine from being biased due to the partial concentration of the load, and to perform a smooth sampling operation. Further, the elastic support member may be formed of a metal spring such as a coil spring, a non-metal spring such as rubber, or the like.

In addition, the traveling body has an inverted L in a side view having an end protruding forward from an upper surface of the traveling body and having a forward end.
A support frame may be provided, and the elevating device and the elastic support portion may be provided along the support frame. The transport unit, which is elastically supported by the elastic support member by lifting and lowering the lifting device attached to the support frame provided on the traveling body, can be easily held in the collection execution state and the non-collection execution state, and the transport unit and depth setting The load applied to the mechanism and the like is shared and supported by the traveling body and the load is dispersed, and the traveling body can run stably.

Further, a balance weight may be attached to a rear side of the traveling body. Distributing the eccentric load by balancing the eccentric load concentrated on the front side of the traveling aircraft with the balance weight behind the traveling aircraft,
Stable traveling of the traveling aircraft can be ensured.

Further, the transport section may have a transport band on the upper surface for placing and transporting shellfish, and a vibration device for vibrating the transport band may be provided near the transport section. Vibration is applied to the sand and shellfish collected at the collection section while transporting the sand and shellfish in the transport belt, and the sand is shaken off from the transport belt to remove the sand and shellfish.
The trouble in secondary processing work such as sorting can be omitted. Further, the vibration device may be constituted by an eccentric sprocket engaged with an endless chain for guiding the endless conveyor.

[0023] Further, the transport section is disposed obliquely downward on the traveling body, and the transport section is pivotally attached to the traveling body so that the front side can move up and down at least with the front side as a free end, and The depth setting mechanism may include a cylinder mechanism attached between the traveling body and the transport unit. The inclination angle of the transport unit with respect to the traveling body can be easily adjusted by the cylinder mechanism. The excavation depth can be set, and the posture can be alternately shifted from the collection execution state to the non-collection traveling state by raising or lowering the transport unit. The cylinder mechanism may be configured as a fluid cylinder using hydraulic pressure or air pressure, or a piston cylinder that raises and lowers a piston with a rack and pinion, a worm gear, or the like.Furthermore, instead of the cylinder mechanism, a suspension mechanism from above may be used. The transport unit may be moved up and down.

Further, a support member is attached to the front end side of the transfer section, and a rolling wheel is provided on the support member so as to roll freely so as to float and support the front end side of the transfer section. Is also good. The rolling wheels provide smoothness and stability of the running of the aircraft, and at the same time reduce the power load of traveling the aircraft.
The rolling wheel uses a tire wheel, a rubber roller, or the like. Further, a hollow metal wheel, metal roller, or the like made of titanium or the like which is lightweight and excellent in corrosion resistance may be used.

[0025] The transport section may be provided with a rotary mud dropping mechanism adjacent to the transport zone.
By removing the sand collected by the collection unit by the rotating mud dropping mechanism that rotates at high speed, the shellfish transported from the transport unit to the storage unit has no adhesion of sand, and can be immediately shipped to the market just by spraying washing water .

[0026] The collecting section is disposed close to the front end side of the transport section, and the rotary mud dropping mechanism is disposed between the transport section and the collecting section. It may be provided so as to rotate in the same direction as the rotation direction. The sand mixed with shellfish collected in the collecting section passes over the upper surface of the rotary mud dropping mechanism from the collecting section in an overpass manner, and the sand is reliably removed during the passage, so that it is possible to save labor for secondary processing and the like.

The rotary mud dropping mechanism may include one or a plurality of rotary baskets. If the sand ground is hard, sand can be removed with one rotating net, but if it is soft, shells can be collected on a sludge-like soft sand ground by providing about three rotating nets. Can also remove sand efficiently. The rotating basket is constituted by a basket in which a metal wire such as a steel wire is arranged in a cylindrical shape with a gap, but is not limited to this, and a circular hole is formed in a cylinder made of metal or a hard synthetic resin. , A basket tube in which a selection hole of an arbitrary shape such as a square hole, a triangle hole, or the like is opened.

[0028] A sieve mechanism may be provided in the middle of the transport section or in the vicinity of the transport section so as to place the collected material collected by the collection section and swing in a substantially horizontal direction. The shells transported from the transport unit to the storage unit side are again swung horizontally by the sieve mechanism, not to mention the sand adhering to the shells,
Pebbles, impurities, etc. are sorted out and eliminated, and high quality shellfish can be immediately shipped from the collection site. The sieve mechanism has a configuration in which sorting rods are arranged side by side from the transport unit side to the storage unit and swing toward the storage unit. However, the present invention is not limited to this, and a screening net having a screening hole of an arbitrary shape may be used, or a configuration in which the screening nets are stacked in multiple stages to perform shape selection may be provided.

The cylinder mechanism has one end pivotally supported by the traveling body and the other end connected to the lower surface of the transport section, and a connecting section of the cylinder mechanism to the transport section includes the transport section. A swing shaft device that swings and supports around the axis with the traveling direction of the traveling body as an axis may be provided. Even if the traveling body oscillates to the right or left during the collection operation, the rotational stress of the plunger of the cylinder mechanism connected to the lower surface of the transport unit is absorbed and eliminated by the oscillating shaft device. The digging is performed while maintaining the collection unit at the set depth irrespective of the swinging of the airframe, and the collection work can be continuously performed without the collection unit tilting and floating.

Further, an elastic support for elastically supporting the transport unit against vertical movement or swing of the transport unit is provided on the rear end side of the transport unit and the traveling machine body. Is also good. Even if the traveling body moves up and down or swings left and right with respect to the traveling direction in the state of sandy ground, the elastic support supporting the rear end side of the transport unit expands and contracts and absorbs vertical vibration and left and right swing, The collecting section can be continuously performed without the transport section swinging up and down or right and left, and without holding the collecting section at a certain depth while excavating in the sandy ground and floating. The elastic support member may be formed of a metal spring such as a coil spring, a non-metal spring such as rubber or synthetic resin, a fluid spring using pneumatic or hydraulic pressure, or the like.

[0031]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is an overall perspective view of a shellfish collecting machine 10 according to a first embodiment of the present invention. The shellfish collecting machine 10 of the first embodiment includes a self-propelled traveling body 14 equipped with a housing 12 as shown in FIGS. 1 to 5, and a collecting body for collecting shellfish attached to the traveling body 14. Part 16
And a depth setting mechanism 1 for setting the collection depth of the collection unit 16
8 and a transport unit 20 for introducing the shellfish collected by the collection unit 16 into the storage unit 12. Then, while traveling on the coastal tidal flat with the traveling body 14, for example, shells living in the surface layer of the sand are collected together with the sand by the collection unit 16, and the collected shells are transported by the transport unit 20 to the accommodation unit mounted on the traveling body 14. 12 That is, caterpillar (infinite rail) 4
An accommodation unit 12 for accommodating shellfish is mounted on an upper part of a traveling body 14 on which the traveling body 8 is mounted, and a collection unit 16 and a depth setting mechanism 18 are arranged on a front side which is a forward side of the traveling body 14, and a transport unit The shellfish collected by the collecting unit 16 by the collecting unit 20
It is transported inside.

Referring to FIGS. 3, 4 and 5, the traveling body 14
Is formed from a caterpillar body in which two caterpillars 48, 48 are arranged long and parallel in front and rear in an endless orbit.
The traveling body 14 has driving wheels 17 rotatably mounted on both sides of the front end side of a frame rod 15 assembled and fixed in a cross-girder shape, and a plurality of rolling wheels 19 provided rotatably on both sides of the body side of the frame rod 15, Further, a trailing wheel 27 is disposed on the rear end side of the frame rod, and the driving wheel 17 and the rolling wheel 1 are arranged.
9. A caterpillar 48 is stretched around the driven wheel 27. And this traveling body 14 is the collection unit 1
6. Supports the depth setting mechanism 18 and the transport unit 20. On the frame rod 15 of the traveling body 14, four columns 21 are erected upward. The accommodation portion 12 is mounted just above the traveling body 14 supported by the support columns 21. That is, the receiving frame 23 is fixed horizontally and vertically by being supported by the support column 21. The accommodation section 12 is placed and fixed on the upper surface of the receiving frame 23.

In the present embodiment, the storage section 12 is made of metal or stainless steel, and is formed in a box shape with a bottom and an open top and front side, and stores shellfish in the hollow interior. This storage unit temporarily stores shellfish just collected from the shellfish collection site,
Since it is necessary to move to a sorting, bagging step, or the like, the side wall and the rear wall may be opened and closed like a truck mounted on a vehicle to facilitate conveyance, or a discharge port 118 may be provided.
As shown in FIGS. 1, 2 and 3, a sliding plate 46 is attached to the front side of the box-shaped accommodation portion 12 in a sloped manner so as to receive the transport of shellfish from the transport portion 20 described later.

In FIG. 4, a balance weight 38 is attached to the rear lower surface of the housing 12 so as to prevent the traveling body 14 from lifting up and to obtain a stable traveling state. In the present embodiment, the balance weight 38 is attached to the caterpillars 48 at a substantially central position in the width direction. Thereby, it is possible to prevent the weight of the shellfish collecting machine 10 from being biased toward the front end side and to ensure a stable running state. In particular, it is necessary to run while observing the collecting state of shellfish, and at the same time it is a site condition that requires running on bad roads, so correct the point that the total weight is biased forward and
The center of gravity of the entire traveling body can be smoothly moved.

1, 2, 4, and 5, a prime mover 42 such as a motor is provided on the outer surface of the left side wall of the housing 12 when viewed from the front.
Is installed. The output of the prime mover 42 is transmitted to the drive wheels 17 via a transmission mechanism by a hydraulic unit (not shown), and the drive wheels 17 are rotated to rotate the caterpillars to travel. Further, a differential device 50 for changing the direction is provided on the front end side of the frame rod 15.

In FIGS. 1, 3, and 5, a support frame 36 is fixed in a front gate shape on the front end side of the box-shaped housing portion 12 and above the receiving frame 23. In the figure, reference numeral 37 denotes a brace frame for reinforcing the support frame 36 attached to the rear side of the support frame in an inclined manner.

As shown in FIG. 1 in this embodiment, the support frame 36 has a portal 41 erected at right angles from the receiving frame 23 and a front projecting projecting forward from the portal 41. And a portion 43 as a whole, and is provided in an inverted L-shape in a side view with an end protruding forward at an upper position from the upper surface of the traveling body 14. The front projecting portion 43 is formed by projecting two frames narrower in width than the gate from the approximate center of the gate 41. This makes it possible to mount a lifting device 22 described later on the upper part of the front protruding portion 43. Further, an operation unit 40 provided with various levers for performing operations such as a travel driving operation of the traveling body, a vibration device, a lifting device operation, and other washing operations is provided on the front end side of the left side surface of the storage unit 12 when viewed from the front. ing. 39 in the figure
Is a boarding board on which a person who operates this collection machine is boarded.

The features of the first embodiment are as follows.
A collecting unit 1 attached to the front side of the traveling body 14 for collecting shellfish in the sand as the traveling body 14 advances.
6, a depth setting mechanism 18 attached to the traveling body 14 to set the collecting depth of the collecting unit 16, and a transport unit 2 for introducing the shellfish collected by the collecting unit 16 into the storage unit 12.
0.

In FIGS. 3 and 4, a frame member 52 projecting forward from the traveling body 14 is provided so as to be able to swing up and down on the front side. That is, the base of the rectangular frame member 52 is pivotally connected to the inside of the frame rod 15 of the traveling body 14 at the third pivoting portion 86. At the lower end of the frame member 52, a depth setting portion 25 made of a flat plate 26 is provided.
Is provided. In the embodiment, the depth setting unit 25
Since the collecting unit 16 is attached to the frame member 52, the collecting depth of the shellfish in the collecting unit 16 is temporarily set. The sampling depth is set by the vertical height width.

In FIGS. 1 and 4, the frame member 52 includes side frames 52a projecting forward from both sides in the width direction of the traveling body 14.
52a and the shaft brackets 51, 51 on the protruding end side.
And a rod-shaped front rod frame 52b in which the end portions of both side frames 52a, 52a are connected to each other. Side frame 52
The shaft brackets 51, 51 each having a shaft-hole-shaped recess formed on the upper surface on the front end side of the shaft brackets 51, 52a, are fixed.
The front rod frame 52b is rotatably supported by the support members 1 and 51.

Connecting rods 58, 58 are fixed to both ends of the front rod frame 52b toward the lower surface side.
A flat plate 26 as a depth setting portion 25 is supported on the lower surface side of the support shaft 45 fixed to the inner ends of the ends 8 and 58, and the flat plate 26 is together with the front rod frame 52b and the side frame 52a, 52a.
Is rotatably mounted on the body. As described above, the flat plate 26 is provided so as to be rotatable around the axis at least in the direction intersecting the forward direction with the support shaft 45, so that even if the surface of the sand has irregularities, the flat plate is stable and easy. You can get over it.

As shown in FIG. 6, the flat plate member 26 has an upwardly inclined surface portion which is inclined forward and upward from a horizontal portion, and is bent and formed in an inverted C shape in side view. Therefore, the load resistance of the scooping plate 28 is reduced when traveling while scooping the shellfish in the sand by the advancement of the scooping plate 28 described later, and the scooping plate 28 It is possible to stably perform the depth setting function of the collection section without digging in the direction of the height. The depth setting unit 25 includes:
The invention is not limited to the flat plate 26, but may be provided with a guide roller and a guide wheel capable of running stably on a sandy ground.

In this embodiment, the depth setting mechanism 18 includes a frame member 52 projecting forward from the traveling body 14 and a depth setting section 25 attached to a lower side of the frame member 52. On the other hand, as shown in FIGS.
The 2a is provided with an adjustment rod extending upward from a substantially central position. The adjusting rod includes a support bar 66 erected upward and a plurality of bar-shaped locking pieces 68 protruding from the outer surface side of the support bar 66 at intervals vertically. A left end portion of the front rod frame 52b of the frame member 52 is extended from the shaft bracket 51, and a distal end of the operating rod 60 is fixed to a distal end of the extended portion. The rear end side of the operation rod 60 extends to the vicinity of the operation section 40, and an intermediate position thereof is locked by each locking piece 68 of the support rod 66.

Thus, the flat body 26 is rotated around the front rod frame 52b by operating the end portion of the operating rod 60 up and down to be locked on one of the locking pieces 68, and is secondary. Alternatively, fine adjustment of the depth of the collection unit 16 in the depth setting unit 25 can be performed stepwise. Here the shaft bracket 51,
The front rod frame 52b, the operating rod 60, and the adjusting rod form a depth adjusting portion 64.

In this embodiment, the collecting section 16 is provided in the frame member 52 at a position slightly closer to the front.
That is, the collecting part 16 is rotatably supported by the concave shaft holes of the shaft brackets 53, 53 attached to the side frames 52 a, 52 a constituting the frame member 52 at positions slightly closer to the front. 82, a shaft 70 pivotally supported at the front end of the conveyor frames 72, 72 arranged on the left and right sides in the front view of the transport unit 20, which will be described later, and fixed to the shaft 70, projecting obliquely downward and forward, It has a flat scooping plate 28 whose front end side is swingable substantially vertically.

As shown in FIGS. 2, 3 and 6, the scooping plate 28 is provided directly on the front end side of the conveying section 20, and the scooping plate 28 has a scooping plate for scooping sand. A scooping plate setting section 80 for setting the corner 300 is connected. In the present embodiment, the scooping plate setting unit 80 is provided on the upper surface near both ends of the scooping plate 28, and has suspension support plates 74, 74 having an elongated hole 76 formed in an arc shape on the upper side, and the support rod 82. Fixed plates 84, 84 cross-projected from the positions near both ends toward the suspension support plates 74, 74, and the suspension plates 7 from the fixed plates 84, 84.
Fixing bolts 78, 78 are fixed to penetrate the elongated holes 76, 4, 74 in a height-adjustable manner.

The scooping angle 300 of the scooping plate 28 can be set to an arbitrary angle by passing the fixing bolt 78 through the elongated hole 76 and fastening and fixing the scooping plate 28 at a required vertical position. As a result, when the traveling machine 14 travels, the sand on the sandy ground is scooped by the scooping plate 28 and sent to the transport unit 20.
The amount of sand or shellfish to be automatically scooped and collected at the scoop angle 300 of 8 can be set, and the collecting operation of shellfish can be performed efficiently. In general, the scooping angle 300 is set slightly downward from the horizontal direction as shown in FIG. 6. It is set in consideration of the depth and the like. In addition, on the left and right sides of the scooping plate 28, plate-like side plates 73, 73 whose lower ends are inclined in side view are provided. This side plate 7
Numerals 3 and 73 are fixed to the front ends of the conveyor frames 72 and 72 (described later), and transport the shells in the sand collected by the scooping plate 28 to the transport unit 20.
Surely.

As described above, the collecting section 16 is supported on the lower surface side of the frame member 52 protruding forward from the traveling body 14, and at the same time, the depth setting mechanism 18 is attached to the lower surface on the front end side of the frame member 52. From, for example, if the scooping plate 28 is set in the horizontal direction, the frame member 52 is lowered to the surface of the sand and is naturally mounted, and the traveling machine 14 can be moved by simply setting the scooping angle 300 of the scooping plate 28 to a required angle. By moving forward, shellfish will be collected at the required scooping depth.

In FIG. 3, a transport section 20 having an endless conveyor 30 is provided at a position in front of the traveling body 14. That is, in the vicinity of the approximate center of the frame member 52, it is inclined downward toward the front side, and is extended long in the front and rear sides.
Conveyor frames 72, 72 arranged in pairs are provided. At the rear end side of the conveyor frames 72, 72, that is, on the side of the accommodation section 12,
A rotating shaft 92 is rotatably supported, and the conveyor frame 7 is rotatably supported.
The first sprocket 9 is attached to the first rotating shaft 92 within
0 and 90 are fixed.

A second rotating shaft 96 is rotatably supported on the front ends of the conveyor frames 72, 72, and driven pulleys 98, 98 are fixed to the second rotating shaft. And
These first sprockets 90, 90 and driven pulley 98,
98 and endless chains 94, 94 are stretched. Then, as shown in FIGS. 1, 7, and 8, both endless chains 9
A grid-shaped wire netting 88 as a transport band is attached to both ends of the base member 4, 94 at play. Thus, the endless chain 9 is rotated with the rotation of the first sprockets 90, 90.
The wire mesh 88 is rotated around the first sprockets 90, 90 and the driven pulleys 98, 98 as the wires 4 and 94 rotate.

Further, a vibrating device 24 for vibrating the conveyor belt to separate and drop sand on the endless conveyor is provided in the conveyor section 20.
Is provided. In this embodiment, the vibration device 24
Has a second sprocket 108 eccentrically mounted on the upper chain side of each of the conveyor frames 72, 72, as shown in FIG. By engaging the upper chain side of the endless chains 94, 94 with the second sprocket 108, the wire mesh 88 fixed to the endless chains 94, 94 is vibrated in the vertical direction during operation of the endless conveyor 30. As a result, only sand is sieved from the gap of the wire netting 88, and post-processing such as washing and bagging can be smoothly performed.

Further, in FIG. 1, the first sprocket 9
A prime mover 44 for driving a wire netting 88 as a transport band is provided in one of the conveyor frames 72 near zero. Further, a second pulley 104 is fixed to an extension end of the first rotary shaft 92 extending from the conveyor frame 72 to the outside. Thus, the rotational force of the prime mover 44 is transmitted to the first sprocket 90. In the embodiment, the prime mover 44 comprises a fuel motor. Shells are placed on the wire netting 88, and, for example, as shown in FIGS. It is transported diagonally upward. In the drawing, 100 is a conveyor frame 72,
A transport belt tensioning pulley that is rotatably supported in close contact with or close to the upper and lower chain tracks 72.

As described above, the front end side of the transport section 20 is provided to be inclined forward and downward, and is disposed near the collecting section 16. That is, in FIG.
a, a long plate-shaped connecting member 75 is hung downward on the lower surface side of the support rod 82 arranged to be stretched over the a and 52a, and the lower end side is connected to the front end side of the conveyor frame 72, that is, the end thereof. It is fixed to the side plate 73. Since the support rod 82 is rotatably supported by the shaft bracket 53, when the front end side of the transport unit 20 swings up and down as shown in FIG. 4, the relative position between the transport unit 20 and the frame member 52 is increased. The actual engagement angle changes.

As shown in FIGS. 3 and 6, the front ends of the conveyor frames 72, 72 are provided with shafts 7 attached to the scooping plate 28.
0 is rotatably pivoted, so that in the embodiment, the lower ends of the conveyor frames 72, 72, that is, the transporting unit 20 is capable of transporting the shellfish together with the scooping plate 28 of the collecting unit 16.
Is also supported. On the other hand, in FIG. 3, a support member 55 is provided upright from the frame member 52, and a rotating body 57 is rotatably supported on the upper surface of the support member 55. The lower surface of the rear end of the transport unit 20 is simply placed on the rotating body 57. Therefore, when the front end side of the transport unit 20 is moved up and down,
The displacement amount is absorbed by sliding on the rotating body 57 while displacing the engagement relationship with the frame member 52 in 2.

In this embodiment, the endless conveyor 30 is formed in a wire mesh shape, but may be formed in a net shape with leather, a nonwoven fabric, other fibers, a string, or the like. Further, although the engine 44 uses an engine, it is not limited to this, and may be configured by, for example, an electric motor. Further, the first rotating shaft 92 may be interlocked using the driving force of the traveling motor 42.

The endless conveyor 30 is mounted on the traveling body 14.
Can move up and down on the side near the front end of the endless conveyor 30. In this embodiment, as shown in FIGS. 1 to 5, the elevating device 22 is arranged along an inverted L-shaped support frame 36 in a side view with an end protruding forward from an upper surface of the traveling body 14. It is provided.

In FIG. 3, a roller 110 is rotatably provided at the projecting front end of the front projecting portion 43 of the support frame 36. The lifting device 22 includes a winch main body 59 attached to the base of the front protruding portion 43 and a wire 112 wound around the winch main body 59.
Then, as shown in FIG. 1, the wire extends along the front projecting portion 43, and the lower end is connected to the conveyor frame 72 while engaging with the roller 110. The winch body 59 is, for example, a hand-wound winch. The winch wire 112 has a bifurcated tip and extends over a long frame plate-shaped hanging member 114 fixed to the conveyor frames 72, 72 near the front end thereof. It is attached in the shape.

Thus, when the winch is wound up, the transport unit 20 can be moved up and down via the wire 112 and the suspending member 114. The collection unit 16 provided on the front end side of the transport unit 20 can also be raised and lowered at the same time, and the collection unit 16 can be punctured in sand or pulled out of the sand. Therefore, by the ascending and descending movement of the endless conveyor 30 on the front end side, the collecting section 16 and the depth setting mechanism 18 can selectively perform the collecting state of shellfish and the non-collecting traveling state. In the present embodiment, the elevating device 22 is configured by a hand-wound winch, but may be a winch using a driving force of a motor or the like.
Any device can be used as long as it can move up and down in the vertical direction.

Further, an elastic support portion 34 is provided along the support frame 36 to elastically support the front end side of the transport portion 20. In FIGS. 1, 3, and 4, a spring 35 is stretched at a bifurcated branch point in the middle of the wire 112 and substantially at the center of the hanging member 114, and is directly fixed to the front end side of the endless conveyor 30 by the wire 112. In addition to the support, it is elastically supported. Thus, the collecting section 16 and the depth setting section 25 are fixedly connected to each other, thereby preventing the early damage of the collecting section 16 and flexibly coping with the unevenness of the sand surface, thereby realizing a smooth collecting operation of the shellfish in the collecting section. It will be.

In this embodiment, the elastic support member 34 uses a coil spring in the tension direction. However, the present invention is not limited to this. For example, a nonmetal spring such as urethane or rubber, or a fluid using pneumatic or hydraulic pressure A spring or the like may be used.
Any configuration can be used as long as the load acting on the depth setting section 25 can be elastically supported. In the drawing, reference numeral 116 denotes a watering hose capable of spraying seawater from above the shellfish being conveyed by the endless conveyor 30 to wash away sand from around the shellfish. As described above, the support frame 36 is provided in an inverted L-shape in a side view with the end protruding forward at an upper position from the upper surface of the traveling machine body and having an end protruding forward. In addition to supporting the cleaning hose together with the elastic support portion 34, simplicity and convenience of the support structure can be ensured.

Next, the operation of the shellfish collecting machine 10 according to the first embodiment of the present invention will be described. FIG. 4 is a side sectional view of the shellfish collecting machine 10. The worker transports the shellfish collecting machine 10 to a shellfish collection site in the tidal flat, that is, a shellfish yard. Then, the bolt 78 of the scooping angle setting section 80 is loosened to adjust the scooping angle 300 with respect to the sand surface of the scooping plate 28 to set the scooping plate 28 to a desired angle. After setting the angle, the bolt 78 is tightened so that the scooping plate 28 does not easily move. Then, the traveling motor 42 and the transport motor 44 are started and mounted on the board 39.

The operator who gets on the board 39 turns the handle of the elevating device 22 placed on the support frame 36 and sends out the wire 112 of the elevating device. Then wire 1
The transport unit 20 suspended from the lower side 12 descends the front end side and lands on the sand surface. At this time, the lower surfaces of the rear end sides of the conveyor frames 72, 72 are the rotating bodies 57 supported by the support members 55, 55,
The rotators 57 are placed on the roller 57 and rolled, or the front ends of the rotators 57 and 57 are lowered to the sand surface while sliding. Then, the front end side of the frame member 52 also descends to the sand surface in synchronization with the connection member 75 and the support rod 82 as fulcrums. As a result, the collection unit 16 provided at the front end of the transport unit 20 and the depth setting mechanism 18 of the frame member 52 are simultaneously lowered to the sand surface and landed.

When the transport section 20 is lowered in this way, the rotating body 57 and the support member 55 can be synchronously changed by substantially the same amount, and the transport section 20 and the frame member 52 can be smoothly lowered. it can. The above-described operation is the same when the transport unit 20 is lifted, and the transport unit 20 can be lifted smoothly.

Next, the operator operates the operating rod 60 to set the depth of the collection unit 16 by the depth setting mechanism 18. That is, the rear end side of the operation rod 60 is placed on the locking piece 68 of the support rod 68 having a desired height of the depth adjustment unit 64. Then, the front rod frame 52b fixed to the front end side of the operation rod 60 rotates,
The connecting rod 58 fixed to the front rod frame 52b moves upward with the front rod frame 52b as a fulcrum. Then, the plate body 26 moves upward through the support shaft 45 pivotally attached to the end face side of the connecting rod 58. Thereby, for example, the collection unit 1
6, the flat body 26 is located above the collecting section 1
The depth of the sixth flat body 26 is set.

Next, when the traveling machine body 14 is moved forward, as shown in FIG. 3, the scooping plate 28 of the collecting section 16 pierces the sand little by little. Then, the frame member 52 also gradually descends in synchronization with the collection unit 16, but when the flat plate 26 is located on the sand surface, surface pressure acts on the flat plate 26 from the sand surface, and the collection unit 1
6 inhibits the puncture action. Then, the collecting unit 16 keeps a constant collecting depth with respect to the flat plate 26 existing on the sand surface,
The traveling body 14 excavates in the sand by advancing. At this time, the collecting unit 16 always tries to go downward in the sand, but the flat plate 26 hinders, so that a constant excavation depth can be always maintained. Then, the shellfish mixed with sand scooped by the scooping plate 28 is transported to the transport unit 20.

The shells mixed with sand conveyed to the conveying section 20 comprising the endless conveyor 30 are sieved only by sand by the vibrating device 24 provided in the conveying section 20. That is, the second sprocket 1 eccentrically mounted on the endless chain 94 on the upper side of the endless conveyor 30 and the conveyor frame 72.
08 is engaged, the second sprocket 108 rotates eccentrically by passing through the endless chain 94 and vibrates the wire mesh 88 fixed to the endless chain 94 violently in the vertical direction. Then, shells having a certain size, such as shells, remain on the wire mesh 88, which is a lattice-shaped bar, and sand and the like fall from the gaps of the wire mesh 88 to separate the sand and the shell. At this time, by spraying seawater from above the endless conveyor 30 with the watering hose 116, it becomes possible to completely wash off the sand attached to the shellfish. Then, only the shellfish remaining on the endless conveyor 30 can be transported to the storage unit 12.

In the above-described shellfish collection execution state,
When an excessive load acts on the collection unit 16, the collection unit 16 acts on the flat plate 26 of the depth setting mechanism 18 via the frame member 52.
There is a possibility that a burden may be imposed between the plate and the flat body 26 to hinder the smooth collection of shellfish. Therefore, the lifting device 22 is slightly wound up, and the transport unit 20 is elastically supported by the elastic support member 34 in the upward direction. It is elastically absorbed, and it is possible to prevent these excessive loads from acting on the depth setting mechanism 18, so that a smooth shellfish collecting execution state can be reliably performed.

Next, when shifting from the collection execution state to the non-collection traveling state, the lifting device 22 is wound up and the collection section 16 is pulled up from the sand. Then, the frame member 52 and the depth setting mechanism 18 on the front end side also rise synchronously via the side plate 73 at the end of the conveyor frame 72, the connecting member 75, and the support rod 82, so that only the traveling body 14 contacts the sand surface. And smooth running can be performed. Then, when shifting to the collection execution state again, the transport unit 20 may be lowered by the elevating device 22 and run by the traveling body 14.

As described above, the shellfish collecting machine 10 can separate shellfish and sand while collecting a large amount of shellfish by a single worker who boarded the shellfish collecting machine 10. And the shellfish can be provided at a low price. And since a worker can collect shellfish while riding on the shellfish collecting machine 10, it is possible to greatly reduce the work load in the shellfish collection work.

Next, a shellfish collecting machine 10a according to a second embodiment of the present invention will be described with reference to FIGS. 10, 11 and 12, and the same components as those in the first embodiment are denoted by the same reference numerals. And
Detailed description is omitted. The shellfish collecting machine 10a according to the second embodiment includes a traveling machine body 14, a collecting unit 16, a transporting unit 20, and the like having the same configuration as the shellfish collecting machine 10 according to the first embodiment.

The depth setting mechanism 18 of the shellfish collecting machine 10 of the first embodiment includes a frame member 52 projecting forward from the body and
The depth setting of the collecting unit is performed by the depth setting unit 25 attached to the frame member 52 and the elevating device 22 including a winch for moving the frame member 52 and the transport unit 20 up and down. In the example, such a frame member 52, the depth setting unit 25, the elevating device 22 and the like are not provided, and instead, a cylinder mechanism 120 is disposed on the lower surface side of the transport unit 20, whereby the front end side of the transport unit 20 is vertically The collection depth of the collection unit is set directly by moving the collection unit.
That is, the depth setting mechanism 18 of the shellfish collecting machine 10a according to the second embodiment is constituted only by the cylinder mechanism 120 provided between the traveling body 14 and the transport unit 20. Therefore, the configuration and operation thereof are extremely simple, and the excavation depth of the collection section 16 can be set reliably.

In the present embodiment, the depth setting mechanism 18 for setting the collection depth has a cylinder mechanism 120 mounted between the traveling machine body 14 and the transport section 20. A support member 160 is attached to the front end side, and a rolling wheel 122 is provided on the support member 160 so as to roll freely so as to float and support the front end side of the transport unit 20.

As shown in FIG. 10, FIG. 11, and FIG.
Pivots 150, 150 provided on both sides of the upper surface of
The rear ends of the conveyor frames 72 are pivotally mounted so that the front side of the transport unit 20 can be moved at least up and down with the front side as a free end. In the conveyor frames 72, 72, a wire mesh 88 is tuned in an endless manner as a transport band, and a chain guide is provided on an outer surface of one of the conveyor frames 72 in order to rotate the wire mesh 88 and a rotary mud removing mechanism to be described later. Frame 1
52 is fixed. A prime mover 44 such as a hydraulic motor driven by a hydraulic unit 123 provided in the body is installed on the outer surface on the rear end side of the chain guide frame 152, and a first rotation that drives a wire netting 88 on a rotating shaft of the prime mover 44. Axis 92
Are connected. In the figure, reference numeral 125 denotes a hydraulic tank connected to the hydraulic unit, and 154 denotes a reinforcing plate connected to the conveyor frames 72, 72.

As shown in FIG. 12, the cylinder mechanism 12
0 is pivotally mounted 155 at a substantially central position on the front surface of the frame rod 15 of the traveling body 14, and the end of the plunger is laid laterally at an intermediate position on the lower surface side of both the conveyor frames 72, 72 of the transport unit 20. The push-up plate 156 is pivoted. Thereby, the inclination angle of the transport unit 20 with respect to the traveling machine body 14 is adjusted by the extension or retraction of the plunger of the cylinder unit 120, and the scooping plate 28 of the collection unit 16 installed on the front end side of the transport unit 20 with respect to the sand surface Excavation depth can be easily set. Further, the transport unit 2 is controlled by the cylinder mechanism 120.
0, the posture is shifted from the collection execution state to the non-collection traveling state, and the cylinder mechanism 12 is moved after the movement.
By simply lowering the transport unit 20 at 0, the collecting operation can be quickly prepared and the efficiency of shellfish collecting operation can be improved, and since the configuration is simple, the manufacturing cost of the entire apparatus can be reduced. The cylinder mechanism 120 is not limited to a fluid cylinder using hydraulic pressure and pneumatic pressure, and may be configured by a piston cylinder that moves a piston up and down by a rack and pinion, a worm gear, or the like.

The end surfaces of the conveyor frames 72, 72 of the conveying section 20 are tapered notches 1 from the lower edge to the upper edge.
58. A support member 1 in which arm plates are vertically arranged on the end sides of the conveyor frames 72, 72 having the diagonally cutouts 158.
60, 160 are fixed in the shape reversed in side view. A support rod 162 is continuously provided at an intermediate position on the upper surface of the opposed support members 160. And the support member 1
An axle 164 is laterally mounted on the end sides of the axles 60, 160, and the rolling wheels 12 such as tire wheels are located near both ends of the axle 164.
2, 122 are idled. This allows the rolling wheels 122, 122 to support and guide the ends of the conveyor frames 72, 72 when the traveling body 14 travels, so that the traveling body can obtain smoothness and stability during traveling.
In addition, the power load during traveling of the traveling body 14 is reduced, and the cost of equipment such as a motor mounted on the body can be saved. Also,
The rolling wheel 122 may include a tire wheel, a rubber roller, or a hollow metal wheel, a metal roller, or the like made of titanium or the like, which is lightweight and has excellent corrosion resistance. The rolling wheel 122 may be configured to elastically absorb an impact during traveling of the body, or may not be configured to increase the elastic force. The depth setting of the collecting section 16 is temporarily performed by the cylinder mechanism 120, but if the mounting angle between the rolling wheel 122 and the transport section 20 is fixed, the depth positioning of the deepest depth setting is performed. It is more preferable to make the mounting angle between the transport unit 20 and the rolling wheels variable to any angle. In this case, by adjusting the angle, an ideal collecting traveling state can be secured in consideration of the delicate terrain in the collecting sand pit at the site.

As shown in FIG. 11, FIG. 12, and FIG. 13, the scooping plate 28 formed in a flat shape is attached to the support members 160, 160 near the oblique notch 158 of the conveyor frames 72, 72.
Both ends of a shaft 70 provided on the rear end side are rotatably supported. On the front end side of the scooping plate 28, a mountain-shaped tooth pattern 16 is provided.
6 are provided. In order to set the scooping angle of the scooping plate 28, mounting plates 168 and support rods 162 provided at both ends of the upper surface of the scooping plate 28 are provided with the same scooping plate adjusting portions 80, 80 as in the first embodiment. Is provided. When starting the sampling operation, the scooping plate setting units 80, 80 set the scooping angle 300 of the scooping plate 28 with respect to the traveling direction to an optimum angle. In addition, since the scooping plate 128 is provided directly on the front end side of the transport unit 20 via the shaft 70, the scooping plate 128 collects when the front end of the transport unit 20 lands on the sand ground and separates from the sand ground. The start and stop or end of the work can be easily controlled, and the collection work can be performed smoothly within a short low tide time when the tidal flat surface is exposed.

As shown in FIGS. 10 and 11, the transport unit 20 is located at a position close to the collection unit 16 on the tip side.
A rotary mud dropping mechanism 170 is provided in parallel with the collecting section 16. The rotary mud dropping mechanism 170 is disposed between the wire mesh 88 as the transport band of the transport unit 20 and the scooping plate 28 of the collection unit 16, and rotates in the same direction as the wire mesh 88 of the transport band. Is provided.

The sand scooped by the scooping plate 28 of the collection unit 16 is brought into contact with the rotating mud dropping mechanism 170 rotating at high speed as the traveling machine body 14 advances, and is successively drawn into the gap between the conveyor frames 72, 72. The large shellfish that has been dropped from the sand and is mixed in the sand
0 is moved to the end of the endless band wire netting 88 that is rotating while moving on the upper surface of the wire mesh 88. The traveling body 14 is moved by the wire mesh 88.
The shellfish transported to the shore is free of sand, pebbles, wood chips, and other contaminants that have adhered during the movement, and the shellfish transported to the vehicle has little adhesion of sand, and the washing water is sprayed. Can be immediately shipped to the market without performing secondary processing such as sand removal. Further, the sand scooped by the rotary mud dropping mechanism 170 is eliminated, so that the sand is hardly introduced into the transporting unit 20, and there is no occurrence of failure due to clogging of the sand in the rotating part of the transporting unit 20. , Can perform continuous sampling work for a long time.
In addition, the sand picked up by the collection unit 16 is reliably removed, and only the selected shellfish is transferred to the transporting unit 16 so that the adhesion of sand to the shellfish can be reduced.

The rotary mud dropping mechanism 170 may include one or a plurality of rotary baskets 172. In the embodiment, as shown in FIG. 12 and FIG.
Reference numeral 72 denotes a state in which they are arranged in parallel. The rotating cage 172 has a rotating shaft 174 penetrated in the center, a plurality of disks 176 fixed at positions near both ends of the rotating shaft 174 and an intermediate position, and a shell formed on the mutual periphery of the opposed disks 176. And a metal wire 178 which is stretched in parallel with a gap capable of selecting the same. The two rotating baskets 172 have their rotating shafts 1
Both ends of 74 are rotatably mounted on shaft holes opened at positions parallel to the obliquely cutout 158 end surfaces of the conveyer frames 72, 72 facing each other.

Further, as shown in FIGS. 11 and 14, the chain guide frame 15 fixed to the outer surface of one of the conveyor frames 72.
The sprocket 1 fixed to the first rotation shaft 92 and the second rotation shaft 96 for driving the wire mesh 88 at positions near both ends in
An endless chain 182 is tuned to 80 and 180.
Furthermore, the rotation shafts 174 of the two rotation baskets 172 are located close to the second rotation shaft 96 protruding into the chain guide frame 152,
The end of the second rotating shaft 96 and the two rotating shafts 174 are protruded.
Eight and two rotating baskets 172, 172 are interlockingly rotated in the same direction.

As a result, the two rotary baskets 172 provided in the rotary mud dropping mechanism rotate in the same direction as the wire mesh 88 of the transporting band, and rub the sand into the metal wires 178 arranged in the basket shape. Can be eliminated. And the rotating basket barrel 172 is lightweight,
It is easy to handle and can be easily attached to a position close to the collection unit 16. In addition, since the structure is simple, the manufacturing cost can be reduced and equipment can be provided to improve the efficiency of sorting shellfish in the sand scooped by the collecting unit. Even sludge-like and sticky sand can be efficiently removed while passing through a plurality of rotating baskets rotating at a high speed, and the adhesion of sand to shells, transport units and the like can be reduced. Further, the rotating basket barrel 172 is formed in a tubular shape by the metal wire 178, but is not limited to this. For example, a circular hole,
It may be constituted by a basket tube in which selection holes such as a square hole and a triangle hole are opened. 10 and 11, reference numeral 36 denotes a support frame erected on a reinforcing plate 154 provided on the upper surface of the conveyor frames 72, 72, and reference numeral 116 denotes a watering hose arranged on the support frame.

As shown in FIG. 11 and FIG.
Is a metal plate such as a stainless steel plate as a material for placing the collected basket 124 for collecting shells, and a receiving portion 1 formed on the rear upper surface of the receiving frame 23 in a substantially L shape in side view.
26. On the upper surface of the front end of the receiving frame 23, a rectangular frame 128 is provided toward both sides, and further, the side plate 13 is provided along both sides of the receiving frame 23.
0 and 130 are erected. And the frame 12
Sieve mechanism 1 that is arranged at a gentle inclination that is obliquely downward from 8 to the accommodation unit 12 and swings substantially horizontally toward the accommodation unit 12
32 are installed. Furthermore, an upper chute 134a for releasing shellfish selected from the lower surface of the end portion of the sieve mechanism 132 into the storage basket 124, and a small shellfish sieved by the sieve mechanism 132,
Lower-stage chutes 134b are installed on both side plates 130, 130 for catching sand, pebbles, and the like and discharging them to a receiving portion 126 in front of the storage basket 124.

As shown in FIGS. 11 and 15, the sieve mechanism 132
Is composed of a large number of sorting rods 138 fixed on the upper surfaces of the two front and rear horizontal shafts 136 and 136 with an intersecting sorting gap, and a receiving plate 140 laid on the front end side of the sorting rods 138. Have. An idle shaft 142 is rotatably supported on the lower surface near the receiving plate 140.
It is mounted on the upper surface of. In the frame 128,
A crank mechanism 144 interlocking with a hydraulic unit 123 installed on the frame rod 15 of the traveling body is pivotally supported.
Is pivotally attached to a horizontal shaft 136 on the end side of the sorting rod 136.

During the shellfish collecting operation, the traveling body 14
The crank mechanism 144 provided in the gantry frame 128 rotates in conjunction with the hydraulic unit 123, and the swing connecting rod 146 makes the sorting rod 13 substantially horizontally in the traveling direction of the traveling machine body 14.
8 swings. Then, sand, mixed pebbles, wood chips, and the like adhering to the shellfish discharged from the transport unit 20 to the sieve mechanism 132 are removed from the gap of the sorting rod 138 by the lower chute 134b.
To the upper surface of the receiving portion 126,
Is discharged to the sand ground through a discharge hole 148 provided in the bottom. Also,
Shells larger than the gap between the sorting rods 138 fall from the sorting rods 138 to the upper chute 134a and are sequentially stored in the storage basket 124.

As a result, small shells and wood chips mixed in the shells transported to the upper part of the traveling
Debris such as pebbles can be sorted out by the vibrating sieve 132, and the shellfish contained in the storage rack 124 has no sticking of sand, and does not need to be subjected to secondary processing such as washing and sorting. Can ship. Further, the sieve mechanism 132 is not limited to being provided behind the transport unit 20, and is provided so as to swing the wire netting 88 as a transport band substantially horizontally in the transport direction at an intermediate position or the like of the transport unit 20. Is also good. Further, the crank mechanism 144 provided in the gantry frame is formed as a disc crank, but is not limited thereto, and may be provided with a square crank, an eccentric crank, or the like.

Next, the operation of the shellfish collecting machine 10a according to the second embodiment of the present invention will be described. The scooping machine 10a is transported to the shellfish collecting site in the tidal flat at low tide, and before starting the work, the scooping plate 28 of the collecting unit 16 is set to a scooping angle with the transporting unit 20 raised by the cylinder mechanism 120. Part 80
When the scooping plate 28 lands on the sand ground, the scooping angle 300 with respect to the sand ground is set to an optimal collection angle suitable for the sand ground.

The operator who has boarded the board 39
Cylinder mechanism 1 of depth setting mechanism 18 by operating handle 0
The plunger is retracted by operating the transfer unit 20.
Rolling wheels 122, 122 protruding toward the front end side of the transport unit 20 while being lowered about the pivot 150 of the gantry frame 28.
Land on the sand ground. As a result, the scooping plate 28 of the collection unit 16 provided at the front end of the transport unit 20 is also in a state of landing on the sand surface. In this manner, the operation of the cylinder mechanism 120 allows the rolling wheels 122, 122 on the front end side of the transport section and the scooping plate 28 of the collection section 16 to automatically land on the sandy ground. Then, the conveying unit 20 is pushed up while the plunger of the cylinder mechanism is extended, so that the rolling wheels 122, 122 and the scooping plate 28 can be smoothly separated from the sand surface.

Next, the rolling wheels 122, 122 and the scooping plate 28
In this state, the traveling body 14 is advanced, and at the same time, the wire mesh 88 and the rotary mud dropping mechanism 170 in the transport section 20 are started. At this time, as shown in FIG. 12, the scooping plate 28 of the collection unit 16 is gradually stabbed in the sand.
As the scooping plate 28 is stabbed in the sand, the rolling wheel 1
Surface pressure from the sand surface acts on 22 to stop the scooping plate 28 from sticking. Thereby, the scooping plate 28 of the collection unit 16
Excavates the sandy ground by moving the traveling body 14 while maintaining a constant excavation depth with respect to the sandy ground. The rolling wheels 122, 1
Since the collection unit 16 on the front end side of the transport unit 20 is guided at 22, the traveling body 14 can have smoothness and stability during traveling.

The shells mixed with sand scooped by the scooping plate 28 are provided with one or a plurality of rotary mud dropping mechanisms 170 rotating at a high speed in the same direction as the wire mesh 88 of the transport band at the front end side of the transport unit 20. It passes through the rotating basket barrel 172 in an overpass shape. At this time, sand, pebbles, and other contaminants are removed downward while being taken in from the gaps of the metal wires 178 forming the rotating basket 172. Then, only the shells having a shape larger than the gap between the metal wires 178 are separated from the sand and the pebbles, and
Is transferred to a wire net 88 that is wrapped around in an endless manner. By providing the rotary mud dropping mechanism 170, even when the sandy ground is sludge-like and sticky, the scooped sand can be efficiently removed and the adhesion to the shells and the wire netting 88 can be reduced. it can.

During the lifting operation by the endless band-shaped wire netting 88 of the transport section 20, the wire netting 88 receives vibration from the vibrating device 24 provided inside, and the shells and the sand adhering to the wire netting 88 are further removed. During the lifting, the sand attached to the shellfish can be completely washed away by spraying water from the watering hose 116 disposed on the support frame 36 provided on the conveyor frames 72, 72 during the lifting. Then, only the shells remaining on the wire netting 88 are transported to the storage unit 12.

[0091] The shellfish is discharged from the transport section 20 to a sieve mechanism 132 provided in the storage section 12. The sieving mechanism 132 has a sorting rod 138 that swings horizontally in a direction from the transport unit 20 toward the storage unit 12 with a swing connecting rod 146 linked to a crank mechanism such as a disk crank 144. Sorting rod 1
38 flows down toward the upper chute 134a. At this time, shells, pebbles, or contaminants smaller than the gap between the sorting rods 138 fall from the gap between the sorting rods 138 to the lower chute 134b and are caught. The selected shells flowing down the upper chute 134a are stored in the storage basket 12.
4 and the shells stored in the storage basket 124 are sorted to a certain size, hardly adhere with sand, and the appearance is clean by sprinkling water. Secondary processing is almost unnecessary, and it is possible to go to a market or the like immediately and to save labor of the operator. Further, small shells, pebbles, and other contaminants caught in the receiving portion 126 from the lower chute 134b are discharged to the sand surface through the discharge holes 146 provided in the receiving portion 126 as appropriate.

As described above, the shellfish collecting machine 10 of the second embodiment is used.
In the collecting execution state using the a, the scooping plate 2 of the collecting section
When an excessive excavation load is applied to the vehicle 8, if the vehicle continues to travel, a failure may occur in the collection unit 16 or
In this case, the output of the prime mover 42 must be increased, and the smooth running of the traveling body 14 may be hindered, and the collecting operation may not be possible. By changing the depth of excavation of the scooping plate 28 to be shallow, the excavation load acting on the scooping plate 28 of the collecting section can be reduced, and the shellfish collecting operation can be reliably continued.

When the collection unit 16 is shifted from the collection execution state to the non-collection traveling state in order to change the direction of the traveling body 14 during the collection operation on the sand ground, the cylinder mechanism 1 is used.
At 20, the transport unit 20 is lifted, and the collection unit 16 is lifted from the sand. In this state, it is possible to smoothly change the direction of the traveling machine body 14, lower the transporting unit 20 by the cylinder mechanism 120 again, land the collection unit 16 on the sandy ground, and shift to the collection execution state again. Therefore, the collecting operation can be efficiently performed while the traveling body 14 is easily reciprocated in a limited place on the sandy ground.

As described above, the shellfish collecting machine 10a of the second embodiment is different from the shellfish collecting machine 10 of the first embodiment.
The configuration of the depth setting mechanism 18 of the collection unit is simple, and the transition from the collection execution state to the non-collection traveling state is reliably performed by the cylinder mechanism.
In addition, it can be performed in a short time, and furthermore, a rolling wheel 122 is provided on the front end side of the transport unit 20 so as to roll freely and guides the transport unit 20, so that smoothness and stability when the traveling machine body 14 travels can be obtained. Further, the rotary mud removing mechanism 170 provided in the transport unit 20 is provided.
Thus, it is possible to save the labor of secondary processing of the collected shellfish by efficiently removing the sand, and to achieve a special effect that the work load in the collecting operation of the shellfish can be greatly reduced.

Next, a shellfish collecting machine according to a third embodiment of the present invention will be described with reference to FIGS. 16 and 17. The same reference numerals are given to the same components as those of the second embodiment, and details thereof will be described. Detailed description is omitted. The shellfish collecting machine 10b of the third embodiment has a traveling body 1 having the same configuration as the shellfish collecting machine 10a of the second embodiment.
4, a collecting section 16, a transport section 20, a cylinder mechanism 120, a rolling wheel 122, and the like.

The shellfish collecting machine 10a of the second embodiment is
The conveyor frames 72 of the transport unit 20 are pivotally mounted 150 on a frame 128 of the traveling body 14, and the upper end of the cylinder mechanism 120 pivotally mounted on the traveling body 14 is connected to the conveyor frame 7.
2, 72 are pivotally attached to a push-up plate 156 provided on the lower surface. For this reason, if there is an uneven surface or a soft surface on the sand ground at the collection site and the running aircraft swings left and right with respect to the traveling direction, the collection unit 16 swings in the left and right direction together with the transport unit 20. As a result, the scooping plate 28 excavating in the sand rises from the sand surface, and as a result, the excavation operation by the scooping plate 28 becomes unstable, and there is a disadvantage that the collection efficiency is reduced.

On the other hand, in the shellfish collecting machine 10b of the third embodiment, the connecting portion between the plunger of the cylinder mechanism 120 and the lower surface of the transport section 20 swings around the axis with the running direction of the body as the axis. By providing the swinging shaft device 192 for supporting, the traveling machine body 14 collecting the sandy ground swings in the left and right direction with respect to the traveling direction, and the plunger of the cylinder mechanism 120 moves the transport unit 20 to the side. The side pressure to be tilted is absorbed and attenuated by the swing shaft device 192, and the conveyance unit 20 and the collection unit 1
The scooping plate 28 of No. 6 does not tilt, and the scooping plate 28 excavates at a certain depth position on the sand ground to improve the collecting efficiency of shellfish.

That is, in this embodiment, FIGS.
As shown in the figure, the lower end of the cylinder mechanism 120 is pivotally connected 188 to a substantially central position on the front end side of the frame rod 15 of the traveling body 14 and the end of the plunger 190 of the cylinder mechanism 120 is connected. On the lower surface side of the section 20, a swing shaft device 192 that swings and supports in the direction around the axis about the traveling direction of the traveling machine body 14 of the transport section 20 is provided.

As shown in FIG. 16, the swing shaft device 192 is
On the lower surfaces of the conveyor frames 72, 72 facing both sides of the transport section 20, the horizontal frames 194, 194 are installed so as to face the substantially central position and the position of the traveling body 14 near the frame 128, and the horizontal frames 194, 194. Axis 19 installed approximately at the center of the
6 and a support cylinder 198 pivotally attached to the pivot 196 so as to be swingable around the axis. Further, one end of an arm rod 200 disposed along the lower surface side of the support cylinder 198 at substantially the center of the upper end of the front surface of the gantry frame 128 is pivotally mounted 202 so as to be vertically rotatable. The support cylinder 198 is connected to the support cylinder 198 via a spacer 204.
The end of the plunger 190 of the cylinder mechanism 120 is pivotally connected 206 to the lower surface of the end of the arm rod 200 of the swing shaft device 192.

During the collection operation, the cylinder mechanism 1
When the plunger 190 is extended by operating the plunger 20, the arm 200 of the swing shaft device 192 pushes the substantially central position on the lower surface of the transport unit 20 while rotating upward about the pivotal connection with the gantry frame 128. The collecting unit 16 on the front end side of the transport unit 20
And the rolling wheel 122 rises from the sandy ground. In this state, when the plunger 19 is retracted into the cylinder by operating the cylinder mechanism 120 in the reverse direction, the arm rack 200 rotates downward, and the collection unit 16 and the rolling wheel 122 of the transport unit 20 land on the sand surface. Therefore, the posture transition between the collection execution state and the non-collection traveling state can be performed smoothly by raising and lowering the front end side of the transport unit 20 by the cylinder mechanism 120.

Therefore, the caterpillar 48 on one side of the traveling machine body 14 running while the scooping plate 28 of the collecting section 16 excavates in the sand at the collection site, for example, the sand softened by the scooping plate 28 excavating. When the aircraft lands on the ground, the aircraft tilts leftward or rightward with respect to the traveling direction. For example, FIG.
When the gantry frame 128 on the body 14 tilts as indicated by an imaginary line shown in FIG. 9, the support cylinder 198 fixed to the arm rod 200 of the swing shaft device 192 to which the plunger 190 of the cylinder mechanism 120 is pivoted is transferred. The traveling body 14 rotates in the same direction as the tilting direction of the traveling body 14 with respect to the pivot 196 fixed to the unit 20 side. With this rotation, the plunger 190 and the arm rod 20 are turned on the lower surface side of the transfer
Since the side pressure acting on the transport unit 20 from 0 is attenuated, the transport unit 20 can be prevented from tilting to the side.

As a result, even if the traveling body 14 swings left and right with respect to the traveling direction, the transport unit 20 and the collection unit 16 at the front end of the transport unit 20 do not swing, and the collection unit 16 The set depth position can always be excavated, and the scooping plate 28 does not rise from the sand, so that the collecting operation can be performed efficiently and continuously. Also, during the collection operation, the plunger 190 of the cylinder mechanism 120 is extended or retracted to move the transport unit 20 up and down in the traveling direction, and the collection unit 16 is quickly set in the collection execution state and the non-collection traveling state. Trim,
This allows the user to easily select the direction change and the like of the traveling machine at the collecting place while the vehicle is running, so that the collecting operation can be continued.

As shown in FIGS. 16 and 19, the rear end of the transport section 20 and the traveling machine body 14 are provided with the transport section 2.
An elastic support portion 208 that elastically supports the transport portion 20 against zero vertical movement or swing may be provided.
That is, elastic support portions 208, 208 are installed at positions near both sides of the upper surface of the gantry frame 128 installed on the front end side of the traveling body 14, and the upper ends of the elastic support portions 208, 208
Are provided continuously on the lower surfaces of the conveyor frames 72, 72 on both sides of the rear end near the rear end. In the embodiment, the elastic support portion 208 is constituted by a coil spring 210, and the conveyor frame 72 and the gantry frame 12 are formed.
Upper and lower ends of the coil spring 210 are locked by locking projections 212 provided on the surface facing the coil spring 8.

Thus, even if the traveling machine body 14 swings up and down in the traveling direction due to the uneven surface or the soft surface on the sand ground during the collection work, the rear end portions of both sides of the transporting section 20 can be moved. The coil springs 210, 210 supporting the lower surface elastically absorb the swing of the body, prevent the transport unit 20 from swinging, and provide the collection unit 16.
Can be prevented from floating from the sandy ground. In addition, even if the collecting unit 16 of the transport unit 20 receives a force that lifts up in the sandy ground state, the collecting unit 16 can be prevented from floating from the sandy ground because the rear end side of the transporting unit 20 is elastically supported. .

Further, even if the traveling body tilts to the left and right sides during traveling, the elastic support portion 208 and the swing shaft device 1
The transporting unit 20 does not tilt due to the synergistic action with 92, the scooping plate 28 of the collecting unit 16 during excavation does not rise from the sandy ground, and the collecting operation is continued while always maintaining a constant depth to collect shellfish. Work efficiency can be improved. Further, the elastic support portion 208 is not limited to the coil spring 210, and may be, for example, a metal spring such as a leaf spring, a non-metal spring such as rubber or synthetic resin, or a fluid spring using pneumatic or hydraulic pressure. You may.

As described above, the shellfish collecting machine 10b according to the third embodiment of the present invention is provided with the above-described configuration, so that the sandy ground for collecting shellfish has an uneven surface, a soft surface, or the like, so that it can travel while collecting. The oscillating shaft device 192 provided on the lower surface of the transport unit 20 and the lower surface of the rear end of the transport unit 20 and the gantry Vibration can be absorbed by the elastic support member 208 interposed between the frame 128 and the frame, so that the collecting section 16 during the collecting operation can be stably excavated while maintaining the collecting section 16 at a constant depth, and the efficiency of the shellfish collecting operation can be improved. And so on. The present invention is not limited to the above-described first, second, and third embodiments, and any modifications may be made without departing from the essence of the invention described in the appended claims. It is.

[0107]

As described above, according to the shellfish collecting apparatus according to the present invention, the traveling unit equipped with the accommodation unit is provided. A collecting unit attached to the front side of the traveling body and collecting shells in the sand as the traveling body advances, and a depth attached to the traveling body and setting a collecting depth of the collecting unit. By providing a setting mechanism and a transport unit for introducing the shellfish collected by the collection unit into the storage unit, the collection unit of the traveling body collects a large amount of shellfish that inhabits the sand in a short time. be able to. In addition, since a single worker operating a traveling machine for collecting shellfish can collect the shellfish, the shellfish can be collected efficiently without requiring many workers, and the number of workers in collecting the shellfish can be improved. Costs can be significantly reduced. Furthermore, shellfish can be collected while the traveling aircraft is traveling, so that it is not necessary to collect shellfish by hand in a middle working posture for shellfish collecting work, and the worker can be released from a harsh working posture. It is possible to greatly reduce the work load of the worker.

The transport unit is disposed obliquely downward on the traveling body, and the transport unit is pivotally attached to the traveling body so that the front side can move up and down at least with the front side as a free end, and The depth setting mechanism includes a cylinder mechanism attached between the traveling body and the transport section, so that the inclination angle of the transport section with respect to the body is finely adjusted by a cylinder mechanism to increase the excavation depth of the collection section. It can be easily adjusted to the condition of the sandy ground. In addition, by simply lifting the transport unit with the cylinder mechanism, the posture is shifted from the collecting execution state to the non-collecting traveling state, and after moving, the transport mechanism is lowered by the cylinder mechanism to quickly prepare for collecting work and collect shellfish. Work efficiency can be improved.

The depth setting mechanism includes a frame member projecting forward from the traveling body and a depth setting section attached to a lower side of the frame member. It is possible to effectively collect shellfish while moving the traveling body forward by the depth setting portion attached to the frame member arranged on the front side. In addition, by configuring the collecting unit with a scooping plate member, the depth can be set simply by pivoting the base side of the frame member to the machine side and landing on the collecting ground, making the setting work extremely simple and the structure simple It is. Further, by projecting the frame member forward, it is possible to travel while observing the surface layer of the sand directly from the driver's seat, and it is possible to smoothly and efficiently collect shellfish. . In addition, since the depth setting section is provided in the front portion, it is possible to smoothly adjust the collection amount while traveling forward while visually checking.

Further, since the depth setting portion is a flat plate, the flat plate slides on the surface of the sand and slides in the shape of a ski as the traveling machine travels, and the set depth is set. As a result, it can function as a stabilizer during running at the same time as setting the depth.

The flat plate is provided so as to be rotatable around an axis at least in a direction intersecting with the forward direction, so that the flat plate can be stably formed even if the sand surface has irregularities. The traveling body can be easily moved over, and the collecting unit can be stably positioned in the sand, and the traveling body can be smoothly advanced.

Further, the collecting section is provided with a scooping plate protruding in the forward direction of the traveling machine body, so that the scooping plate collects shellfish in the surface sand together with the sand as the machine body advances. It is possible to reliably capture and collect shellfish in the sand in a large amount, in a short time, and with a small amount of labor. In addition, the scooping plate can cooperate with the flat plate member of the depth setting section to stabilize the running and simultaneously set the depth easily. Also, for example, by attaching a flat body as a depth setting unit and a scooping plate of the collection unit to a frame member protruding from the front side of the fuselage, the depth setting and collection unit can be obtained simply by landing the frame member on the ground. Preparation is completed, work preparation is easy, and collection work on site can be started in a short time.

The scooping plate is provided so that the scooping angle with respect to the traveling direction of the traveling machine can be set.
The amount of sand or shellfish to be automatically scooped and collected during traveling of the traveling machine can be set, the most efficient scooping angle can be set, and the efficiency of collection can be improved.

Further, since the scooping plate is provided directly on the front end side of the transfer section, the collection operation starts when the front end of the transfer section lands on the sandy ground and when it comes off the sandy ground. In addition, the suspension or termination of the work can be easily controlled, and the collection work can be performed smoothly within a short low tide time when the tidal flat surface is exposed.

The base end of the frame member is pivotally attached to a traveling machine body, and the front side thereof is mounted to be movable up and down substantially. The transport section comprises an endless conveyor, and the front end side of the endless conveyor is the frame member. And the rear end side is mounted on a traveling machine body. The traveling machine body is further provided with an elevating device that moves up and down on the side near the front end of the endless conveyor. The collecting state of the shellfish by the collecting unit and the depth setting mechanism by the vertical movement of the side,
By being able to selectively take the non-collecting traveling state, when moving from the collecting execution state to the non-collecting traveling state, the moving posture can be quickly adjusted only by lifting the side near the front end of the endless conveyor with the lifting device. With
After the movement, it is possible to quickly start collecting shellfish simply by lowering the endless conveyor on the side near the front end with the lifting device. Therefore, for example, when working in tidal flats, it is possible to perform shellfish collection work that requires repeated collection and movement according to the distribution of shellfish, quickly and smoothly, and it is possible to collect shellfish. Work efficiency at the time of work can be improved. Since the posture at the time of movement and the posture of the collection work can be easily adjusted, it is possible to reduce the work load on the worker. Further, when the collecting machine is moved on land, the end of the endless conveyor can be easily loaded on the truck bed by lifting the end of the endless conveyor with the lifting device.

Further, since the traveling machine body is provided with an elastic supporting portion for elastically supporting the side near the front end of the endless conveyor from above when the shellfish is being collected, the load of the endless conveyor in the collecting state is elastically applied. In this way, it is possible to prevent the load of the endless conveyor from affecting the frame member and the like and hindering the smooth movement of the flat plate and the collecting section, so that the shellfish can be collected smoothly.

Further, the traveling body has an inverted L in a side view in which an end is protruded forward from an upper surface of the traveling body and forward.
A supporting frame is provided, and the lifting device and the elastic supporting portion are provided along the supporting frame. By winding up the lifting device, the endless conveyor supported by the elastic supporting portion is securely moved upward. , It is possible to ensure the selectivity between the collection execution state and the non-collection traveling state. In addition, the load of the endless conveyor lifted by the elevating device in the non-collecting traveling state and the load on the elastic supporting portion acting in the collecting execution state are applied to the traveling machine body via the inverted L-shaped support frame. Therefore, it is possible to prevent the balance of the collecting machine from being biased. Therefore, the movement in the non-collecting traveling state and the collecting operation of the shellfish in the collecting execution state can be performed smoothly. In addition, the attachment of the lifting and lowering device and the elastic support section to the machine body are made effective, and the work and auxiliary work members such as the temporary fixing of the hose nozzle for spraying the water for washing are attached and supported collectively. Maintenance and management become easier.

Further, since the balance weight is attached to the rear side of the traveling body, the vehicle can stably and smoothly travel while balancing while correcting the state of unbalanced load which tends to concentrate on the front side. Can be collected.

Further, the transport section has a transport band on which the shells are mounted and transported, and a vibrating device for vibrating the transport band is provided near the transport section, so that the transport section can carry the shells. Vibration is applied to shellfish, and the sand is efficiently shaken down to separate and remove shellfish only smoothly and easily. It is possible to significantly reduce the weight.

Further, a support member is attached to the front end side of the transfer section, and a rolling wheel is provided on the support member so as to roll freely so as to float and support the front end side of the transfer section. , By the rolling wheels supporting the front end side of the transport section,
The smoothness and stability of the running of the airframe can be obtained, and the power load of the running of the airframe can be reduced, and the cost of equipment such as a motor mounted on the airframe can be saved.

The transporting unit is provided with a rotary mud dropping mechanism in parallel with the collecting unit at a position close to the collecting unit, so that the sand scooped by the collecting unit rotates at a high speed. It is removed by contact with the rotating mud dropping mechanism, and the shellfish collected on the traveling machine has little adhesion of sand, and can be immediately shipped to the market without the need for secondary processing such as sand removal. Also,
The removal of the scooped sand reduces the intrusion of sand into the transporting section, so that a continuous sampling operation can be performed for a long time without causing any trouble in the rotating portion of the transporting section.

Further, the collecting section is disposed close to the front end side of the transport section, and the rotary mud dropping mechanism is disposed between the transport section and the collecting section. By being provided so as to rotate in the same direction as the rotation direction, it is possible to reliably remove the sand scooped by the collection unit and transfer only the selected shellfish to the transport unit, and to prevent the adhesion of sand to the shellfish. Can be reduced.

Further, since the rotary mud dropping mechanism includes one or a plurality of rotary baskets, the rotary basket is lightweight, easy to handle, and easily mounted at a position close to the collecting section. it can. In addition, since the structure is simple, the manufacturing cost can be reduced and equipment can be provided to improve the efficiency of sorting shellfish in the sand scooped by the collecting unit. Further, even if the sand is sludge-like and sticky, it can be efficiently removed while passing through a plurality of rotating baskets rotating at a high speed, and the adhesion of sand to a shellfish, a transport portion, or the like can be reduced.

Further, a sieve mechanism is provided in the middle of the transport section or in the vicinity of the transport section so as to place the collected matter collected by the collection section and swing in a substantially horizontal direction, so that shellfish are provided. The sifting mechanism can sort out small debris such as mixed small shells, wood chips and pebbles, simplifying the secondary processing such as washing and sorting of shells released into the storage unit, and as a high commercial value shellfish It can be immediately shipped from the sampling site to the market.

The cylinder mechanism has one end pivotally supported by the traveling body and the other end connected to the lower surface of the transport section. The transport section of the cylinder mechanism has a transport section connected to the transport section. A swing shaft device is provided for swinging and supporting the traveling body in the direction around the axis about the traveling direction of the traveling body. The collecting part does not tilt, and the collecting part does not always excavate at the set depth and does not rise from the sand, so that the collecting work can be continued. In addition, during the collection work, the cylinder mechanism is operated to move the transport unit up and down in the direction of travel, and the collection unit is quickly set up between the collection effective state and the non-collection traveling state, making it easy to change the direction of the aircraft And the collection work can be continued.

Further, the rear end side of the transport section and the traveling body are provided with an elastic support section for elastically supporting the transport section against vertical movement or swing of the transport section. Even if the traveling body swings up and down or left and right with respect to the traveling direction while traveling on sandy ground, the swing is absorbed by the elastic support section and the swing is not transmitted to the transport section. The collecting part while digging in the inside does not rise, and the collecting work can be continued while maintaining a certain depth.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a shellfish collecting machine according to a first embodiment of the present invention.

FIG. 2 is a plan view of the shellfish collecting machine according to the first embodiment of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a side view of the shellfish collecting machine according to the first embodiment of the present invention.

FIG. 5 is a sectional view taken along line BB of FIG. 4;

FIG. 6 is an enlarged explanatory view of a main part showing a collecting unit and a depth setting mechanism from a side.

FIG. 7 is a partially enlarged explanatory view showing a state in which an endless conveyor in a transport unit is viewed from a plane side.

8 is a partially enlarged cross-sectional view taken along line CC of FIG. 2;

FIG. 9 is a partially enlarged explanatory view of the operation state of the endless conveyor and the vibration device in the transport unit as viewed from the side.

FIG. 10 is an overall perspective view of a shellfish collecting machine according to a second embodiment of the present invention.

FIG. 11 is a plan view of a shellfish collecting machine according to a second embodiment of the present invention.

FIG. 12 is a sectional view taken along line DD of FIG. 11;

FIG. 13 is an enlarged sectional explanatory view of a main part showing a collecting part and a rotary mud dropping mechanism of a shellfish collecting machine according to a second embodiment.

FIG. 14 is an enlarged sectional explanatory view of a main part showing an interlocking mechanism of the rotary mud dropping mechanism.

FIG. 15 is an enlarged sectional explanatory view of a main part showing a sieve mechanism provided in a housing part of a shellfish collecting machine according to a second embodiment.

FIG. 16 is an explanatory cross-sectional view of a shell collecting machine according to a third embodiment of the present invention, which is cut at the front center.

FIG. 17 is an enlarged sectional explanatory view of a main part of a swing shaft device of a shellfish collecting machine according to a third embodiment of the present invention.

FIG. 18 is a partially enlarged cross section taken along line EE of FIG. 17;

FIG. 19 is a partially enlarged cross section taken along line FF of FIG. 17;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Shellfish collection machine 12 Housing part 14 Running body 16 Collection part 18 Depth setting mechanism 20 Conveying part 22 Elevating device 24 Vibration device 25 Depth setting part 26 Flat plate 28 Scooping plate 30 Endless conveyor 34 Elastic support part 36 Support frame 38 Balance weight 52 Frame member 80 Scooping plate setting section 120 Cylinder mechanism 132 Sieving mechanism 160 Support member 170 Rotary mud dropping mechanism 172 Rotating basket 192 Swing shaft device 208 Elastic support 300 Scoop angle

Claims (8)

(57) [Claims] 1. A traveling body equipped with an accommodating portion, a collecting section attached to a front side of the traveling body and provided with a scooping plate for collecting shells in sand as the traveling body advances. , A depth setting mechanism for setting the collection depth of the collection unit, and a transport unit for introducing the shellfish collected by the collection unit into the storage unit, the transport unit having a free end on the front side. The front side is pivotally attached to the traveling body so as to be able to move up and down, and is disposed obliquely downward.The depth setting mechanism has a base end side pivotally attached to the traveling body and a front end side projecting forward from the traveling body. A collecting machine for shellfish, comprising: a frame member having a front end side substantially vertically movable; and a depth setting unit attached to a lower side of the frame member, wherein a collecting unit is attached to the frame member. 2. The shellfish collecting machine according to claim 1, wherein the depth setting portion is a flat plate arranged so that the lower surface is grounded. 3. The shellfish collecting machine according to claim 2, wherein the flat plate is provided so as to be rotatable around an axis at least about a direction intersecting the forward direction. 4. The conveying section comprises an endless conveyor, and a front end side of the endless conveyor is pivotally supported by a frame member.
The rear end side is mounted on the traveling body in a free state, and the traveling body is further provided with an elevating device that moves up and down on the side closer to the front end of the endless conveyor, and the elevating device moves up and down the front end side of the endless conveyor. The shellfish collecting machine according to any one of claims 1 to 3, wherein the collecting section and the depth setting mechanism can selectively take a collecting execution state of the shellfish and a non-collecting traveling state. 5. The traveling body is provided with an elastic support portion for elastically supporting a side near the front end of the endless conveyor from above in a suspended state while collecting shellfish. A collecting machine for the described shellfish. 6. The traveling body is provided with a support frame having an inverted L-shape in a side view with an end protruding forward at an upper position from the upper surface of the traveling body, and a lifting device and an elastic supporting portion support the supporting frame. The shellfish collector according to any one of claims 1 to 5, wherein the shellfish collector is provided along a frame. 7. A traveling body equipped with an accommodation unit, a collecting unit attached to a front side of the traveling body and collecting shellfish in sand as the traveling body advances, and a shellfish collected by the collecting unit. A collection unit is attached to the conveyance unit, and the collection unit is pivotally attached to the traveling body so that the front side is a free end and the front side can move up and down. A cylinder mechanism that is disposed on the lower side and drives the front end side of the transport unit up and down, and a rolling wheel that is provided at the front end side of the transport unit and rotatably provided so as to float and support the front end side of the transport unit. The shellfish is provided with a swing shaft device that is interposed between the cylinder mechanism and the lower surface of the transport unit, supports the transport unit, and swings and supports the transport unit around an axis about the traveling direction of the traveling machine. Gathering machine. 8. The shellfish collecting machine according to claim 7, further comprising an elastic support member provided on a rear end side of a lower surface of the transport section and elastically pushing and supporting the rear end side of the transport section in a lifting direction. .