WO2021256435A1 - Loader - Google Patents

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Publication number
WO2021256435A1
WO2021256435A1 PCT/JP2021/022567 JP2021022567W WO2021256435A1 WO 2021256435 A1 WO2021256435 A1 WO 2021256435A1 JP 2021022567 W JP2021022567 W JP 2021022567W WO 2021256435 A1 WO2021256435 A1 WO 2021256435A1
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WO
WIPO (PCT)
Prior art keywords
elevating
loader
load receiving
receiving member
crank
Prior art date
Application number
PCT/JP2021/022567
Other languages
French (fr)
Japanese (ja)
Inventor
隆一 矢嶋
Original Assignee
有限会社矢島製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 有限会社矢島製作所 filed Critical 有限会社矢島製作所
Publication of WO2021256435A1 publication Critical patent/WO2021256435A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F7/00—Lifting frames, e.g. for lifting vehicles; Platform lifts
    • B66F7/10—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks
    • B66F7/12—Lifting frames, e.g. for lifting vehicles; Platform lifts with platforms supported directly by jacks by mechanical jacks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks

Definitions

  • the present invention relates to a loader for moving cargo placed on the floor of a cargo-only vehicle having a rail-shaped groove on the floor, a warehouse, or the like, for example, luggage loaded on a pallet.
  • the cargo For loading, the cargo is inserted into a pair of loader grooves parallel to each other placed on the cargo bed floor of a cargo-only vehicle or warehouse, and the cargo on the cargo bed floor is moved to a predetermined position and stored through the lifting operation of the cargo receiving section (loading section). Therefore, a loader used for unloading the cargo from the storage position and carrying the cargo to the outside is known (see, for example, Patent Document 1).
  • the loader described in Patent Document 1 includes a loader main body and an operating device, and the loader main body includes a roller frame located on the lower side, a loader base located on the upper side, and a roller frame. It has a base guide placed between it and the loader base.
  • the loader body can travel in a rail provided in the floor of a vehicle or the like with the load loaded on the upper surface thereof (the state of receiving the load), and can move to the storage position of the load.
  • the actuating device includes an actuating device main body for raising and lowering the loader base arranged on the rear end side of the loader base, and an operating rod for operating the actuating device.
  • This kind of loader is operated as follows.
  • a pair of loader bodies are inserted into a pair of loader rail grooves installed under the load.
  • the load is placed on the rail groove in which the pair of loader bodies are present.
  • the insertion portions of the pair of operating rods are inserted into the operating holes of the operating body of the loader operating device, and the pair of operating rods are tilted rearward with the gear shaft as a fulcrum. And the base guide is pulled backward, and the receiving part gradually rises above the floor surface of the loading platform.
  • the luggage loaded on the receiving portion is pushed up and leaves the floor surface.
  • the loader body is advanced on the rail like a wheelbarrow while the load receiving state is tilted by a predetermined angle, and the load is moved to the storage position.
  • these operating rods are raised to the front side and returned to the vertical state, the load receiving portion descends and finally fits in the rail groove. After that, hold both operating rods in a vertical state, retract the loader body along the rail, and remove both operating rods from the loader body.
  • the conventional loader as described in Patent Document 1 loads the loader from the opening at the rear of the vehicle when loading the load on the cargo bed floor of a cargo-only vehicle or moving the load from the storage position and carrying it out.
  • the cargo receiving part rises above the floor surface of the cargo bed floor and is carried forward or backward, so that the cargo near the opening at the rear of the vehicle is especially rearward.
  • the worker would fall off the loading platform of the vehicle or the like.
  • workability is poor because the luggage can only be pulled backward when the luggage is carried out.
  • Patent Document 1 has a problem that the configuration of the operating device is complicated and the production cost is high.
  • an object of the present invention is to load the cargo on a pallet placed on the floor of a cargo-only vehicle or a warehouse having a rail-shaped groove on the floor.
  • an object of the present invention is to load the cargo on a pallet placed on the floor of a cargo-only vehicle or a warehouse having a rail-shaped groove on the floor.
  • the cargo it is possible to lift the cargo from the floor surface of the cargo bed using the operation rod and push it forward to move it, whether it is on the rear opening side of the vehicle or on the back side of the cargo bed.
  • the loader has a U-shaped cross section including a bottom surface and both side walls, and is provided with a plurality of traveling rollers and a plurality of elevating inclined cams having a V-shaped inclined surface inside, and is provided with a loading platform. It has a U-shaped cross section consisting of a dolly that can run along the groove-shaped rails formed on the floor surface of the floor and the upper surface and both side walls, and can move inside along the inclined surface of multiple elevating inclined cams.
  • a pair of elevating and lowering rollers are provided, and a consignment member mounted on the bogie via the plurality of elevating rollers and a pair of elevating and lowering members connected to both ends of the bogie to raise and lower the receiving member with respect to the bogie. It is equipped with a drive mechanism.
  • the loader has a U-shaped cross section including a bottom surface and both side walls, and a plurality of traveling rollers and a plurality of elevating rollers are provided inside, and the loader is formed on the floor surface of the loading platform.
  • a dolly that can run along a groove-shaped rail, and a U-shaped cross section consisting of an upper surface and both side walls, and a plurality of inverted V-shaped inclined surfaces that can be moved with a plurality of elevating rollers in contact with each other.
  • a pair of elevating and lowering cams is provided, and a load receiving member mounted on the bogie via a plurality of elevating and lowering cams and a pair of elevating members connected to both ends of the bogie to raise and lower the receiving member with respect to the bogie. It is equipped with a drive mechanism.
  • Each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and is a crank member that can rotate around a rotation shaft on one end side by an external force. And a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the bogie. It is preferable that the crank is inserted into a long hole extending in the longitudinal direction provided on both side walls of the above and is slidably mounted along the long hole. As a result, the structure is simple and the ascending / descending operation can be easily performed.
  • the insertion part is further equipped with an operation rod that can be fitted into the insertion hole of the elevating drive mechanism, and the operation rod rotates the crank member by being pulled backward with the insertion part fitted in the insertion hole. It is also preferable that the bogie is moved backward and the consignment member is raised.
  • a recess into which at least the lower semicircle of the rotating shaft can be fitted is formed on the lower side of one end of the elongated hole.
  • Each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and a crank member that can rotate around a rotation shaft on one end side by an external force.
  • the crank member is provided with a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the carriage, the crank member having an upper portion provided with a fitting hole. It is composed of a member, a lower member that supports the upper member, and an engaging rotation shaft that rotatably engages the upper member and the lower member on the side where the link member is connected, and is composed of the upper member and the lower part. It is also preferable that the free end side of the member is formed with recesses into which the upper half circle portion and the lower half circle portion of the rotation shaft can be fitted, respectively.
  • the insertion portion is further provided with an operation rod that can be fitted into the fitting / insertion hole of the elevating drive mechanism, and the operation rod is pulled backward with the insertion portion fitted into the fitting / insertion hole to form a crank member. It is more preferable that the dolly is moved backward while rotating the load receiving member to raise the load receiving member.
  • the floor surface of a cargo-only vehicle or a warehouse having a rail-shaped groove on the floor can be used.
  • the cargo loaded on the placed pallet for example, whether it is on the rear opening side of the vehicle, the back side of the vehicle carrier, or using the operation rod, the cargo is lifted from the floor surface of the cargo bed and pushed forward. You can move it by doing this.
  • each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and is rotatable about a rotation shaft on one end side by an external force.
  • the crank member is provided with a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the bogie.
  • the structure is simple and can be realized at low cost by being inserted into a long hole extending in the longitudinal direction provided on both side walls of the load receiving member and slidably mounted along the long hole, and the elevating operation can be realized. Can be easily performed.
  • FIG. 3 is a side sectional view showing an assembled state showing the internal configuration of the loader of FIG. 1 and a state in which the pallet is lifted. It is a perspective view which shows the operation which lifts a pallet by the elevating drive mechanism of the loader of FIG. 1 in detail.
  • FIG. 7 is a side sectional view and a top view showing the configuration of the trolley of the loader and the elevating drive mechanism of FIG. 7.
  • FIG. 7 is a side sectional view and a bottom view showing a configuration of a load receiving member of the loader of FIG. 7.
  • FIG. 6 is a side sectional view showing in detail the operation of lifting the pallet by the lifting drive mechanism of the loader of FIG. 7.
  • This embodiment relates to a pallet loader that handles pallets as luggage, and is configured to manually raise and lower the trolley using an operation rod.
  • This loader can run along a groove-shaped rail formed in parallel in the front-rear direction on the floor surface of a freight vehicle, a warehouse, or the like.
  • FIG. 1 schematically shows an external configuration of a pallet loader 100 as a first embodiment of the loader of the present invention.
  • FIG. 2 shows the configuration of the carriage 10 of the pallet loader 100
  • FIG. 2A is a partial cross-sectional view of a side surface
  • FIG. 2B is a view seen from above.
  • FIG. 3 shows the configuration of the load receiving member 20 of the pallet loader 100
  • FIG. 3A is a partial cross-sectional view of a side surface
  • FIG. 3B is a view seen from below.
  • FIG. 4 shows the internal configuration of the pallet loader 100 in an exploded manner.
  • FIG. 5 is a side sectional view showing an assembled state showing the internal configuration of the pallet loader 100 and a state in which the pallet is lifted.
  • FIG. 5 is a side sectional view showing an assembled state showing the internal configuration of the pallet loader 100 and a state in which the pallet is lifted.
  • FIG. 6 shows in detail the operation of lifting the pallet G by the elevating drive mechanism 30, and FIG. 6A shows that the pallet loader 100 is inserted into the groove-shaped rail and the operation rod 40 is fitted into the insertion hole 31a.
  • (B) shows a state in which the pallet G is lifted by the elevating drive mechanism 30.
  • the pallet loader 100 of the present embodiment has a plurality of traveling rollers 11 and a plurality of elevating inclined cams 12 having a V-shaped inclined surface, and is formed on the floor surface F.
  • a bogie 10 that can travel along the rail R laid in the groove, and a plurality of elevating cams that are mounted on the bogie 10 and can move along the inclined surfaces of the plurality of elevating inclined cams 12 inside. It includes a load receiving member 20 having a roller 21, a pair of lifting drive mechanisms 30 connected to both ends of the carriage 10 to raise and lower the load receiving member 20 with respect to the carriage 10, and an operation rod 40.
  • the dolly 10 is formed by sheet metal processing of a stainless steel plate, and has a U-shaped cross section including a bottom surface 10a and both side walls 10b.
  • a plurality of openings 10c for arranging a plurality of (for example, six) traveling rollers 11 are formed on the bottom surface 10a.
  • a shaft 11a of a traveling roller 11 is inserted through both side walls 10b.
  • Each traveling roller 11 is rotatably supported with respect to the shaft 11a.
  • a plurality of (for example, three) elevating inclined cams 12 having a V-shaped inclined surface are provided along the longitudinal direction.
  • the carriage 10 can travel along the rail R laid in the loader groove formed on the floor surface F.
  • a pair of elevating drive mechanisms 30 are connected to both ends of the bogie 10.
  • the consignment member 20 is formed by sheet metal processing of a stainless steel plate and has a U-shaped cross section including an upper surface 20a and both side walls 20b.
  • a plurality of (for example, three) elevating rollers 21 are provided on the inner side (that is, the lower part of the upper surface 20a) along the longitudinal direction.
  • the plurality of elevating rollers 21 are configured to be movable along any side of the V-shaped inclined surface of the plurality of (for example, three) elevating inclined cams 12.
  • the load receiving member 20 is mounted on the carriage 10 via a plurality of elevating rollers 21, that is, is supported by the plurality of elevating rollers 21.
  • each elevating roller 21 When the load receiving member 20 is in the normal position (descent position), each elevating roller 21 is located at the center of the V-shaped inclined surface (V-shaped lower corner portion) of the elevating inclined cam 12 having the V-shaped inclined surface. On the other hand, when the load receiving member 20 is in the ascending position, each elevating roller 21 is placed on the upper end (flat surface) of the V-shaped inclined surface of the elevating inclined cam 12. It will be in a state of being in contact (see FIG. 5B). Further, an opening 22 is provided for inserting the insertion portion 41 of the operation rod 40 into the position corresponding to the elevating drive mechanism 30 on the upper surface on both end sides of the load receiving member 20 to raise and operate the elevating drive mechanism 30.
  • a pair of elongated holes 23 extending in the longitudinal direction are provided on both end sides of both side walls 20b of the load receiving member 20. Both ends of the rotation shaft 33 of the crank member 31 are inserted through the pair of elongated holes 23, and the pair of elongated holes 23 is slidably formed along the elongated holes 23. Further, at the lower end of one end of the elongated hole 23 (that is, the end on the end face side in the length direction of the load receiving member 20), a substantially semicircular recess 23a into which at least the lower semicircular portion of the rotation shaft 33 can be fitted is provided. It is formed.
  • the recess 23a functions as a positioning of the rotation shaft 33 of the crank member 31 when the elevating drive mechanism 30 is raised and operated. That is, when the operation rod 40 is pulled backward, the rotation shaft 33 of the crank member 31 on the operated side moves downward from the center line position of the elongated hole 23 and fits into the recess 23a along the elongated hole 23. The dolly 10 can be moved backward by preventing it from sliding. On the other hand, the rotation shaft 33 of the crank member 31 on the non-operated side can slide along the elongated hole 23 with the movement of the carriage 10. As a result, the carriage 10 is pulled toward the operated side, and the load receiving member 20 is raised.
  • the pair of elevating drive mechanisms 30 are connected to both ends of the bogie 10 via a connecting shaft 34, and raise and lower the load receiving member 20 with respect to the bogie 10.
  • Each of the pair of elevating drive mechanisms 30 has a fitting hole 31a exposed from an opening 22 provided in the upper surface 20a of the load receiving member 20, and is one end side by an external force (operation of the operation rod 40).
  • a crank member 31 that can rotate around a rotating shaft 33, one end of which is rotatably connected to the other end of the crank member 31 via a connecting shaft 35, and the other end of the carriage 10 via a connecting shaft 34. It is provided with a link member 32 connected to both side walls 10b.
  • Both ends of the rotation shaft 33 of the crank member 31 are inserted into a long hole 23 extending in the longitudinal direction provided on both side walls 20b of the load receiving member 20, and are slidably mounted along the long hole 23.
  • the axis center of the rotating shaft 33 is formed so as to be higher than the axis center of the connecting shaft 35.
  • the insertion hole 31a of the crank member 31 is formed so that the insertion portion 41 of the operation rod 40 can be inserted and removed.
  • the insertion portion 41 of the operation rod 40 is pulled backward while being fitted into the insertion hole 31a, thereby pulling the carriage 10 backward (pulling) via the link member 32.
  • the elevating roller 21 of the load receiving member 20 rises along the slope of the elevating inclined cam 12 to the upper end of the V-shaped inclined surface, and is configured to move to a high position. ..
  • the bogie 10 moves forward and the elevating roller 21 of the load receiving member 20 has a V-shaped inclined surface along the inclined surface of the elevating inclined cam 12. It is configured to go down to the bottom of the and move to a lower position. As a result, the load receiving member 20 moves up and down in the vertical direction.
  • the operation rod 40 includes an insertion portion 41 to be inserted into the insertion hole 31a of the crank member 31 of the elevating drive mechanism 30.
  • the crank member 31 can be rotated around the rotation shaft 33.
  • the load receiving member 20 can be raised and lowered by tilting the operating rod 40 to the rear side or raising it to the front side.
  • the load receiving member 20 is placed on the carriage 10, that is, the plurality of elevating rollers 21 of the receiving member 20 are on the V-shaped inclined surface of the plurality of elevating inclined cams 12.
  • the load receiving member 20 is stably mounted on the trolley 10 as a normal position (assembled state) by abutting on the lower ends (V-shaped corners at the center of the elevating inclined cam 12).
  • 5 (A) and 6 (A) show a state in which the pallet loader 100 is inserted below the pallet G on the rail R laid in the loader groove formed on the floor surface F.
  • 5 (B) and 6 (B) show a state in which the pallet G is lifted to a position higher than the floor surface F by the pallet loader 100.
  • the pallet loader 100 when the pallet loader 100 is inserted into the lower part of the pallet G along the rail R formed on the floor surface F, and the pallet loader 100 is already installed.
  • the pallet loader 100 does not come into contact with the pallet G because the load receiving member 20 is in the lowered position (normal position) and the upper surface 20a of the load receiving member 20 is lower than the floor surface F. Therefore, the pallet loader 100 can be smoothly inserted or pulled out.
  • the operation rod 40 is attached.
  • the insertion portion 41 of the operation rod 40 is fitted into the insertion hole 31a on the side of the pair of elevating drive mechanisms 30 that is easy to operate. The above operation is similarly performed for the pair of pallet loaders 100.
  • the operation rod 40 is tilted backward by a predetermined angle, and the crank member 31 is rotated to operate the elevating drive mechanism 30. That is, as shown in FIGS. 5 (B) and 6 (B), the carriage 10 moves rearward (in the pulling direction) via the link member 32.
  • the load receiving member 20 moves upward as the carriage 10 moves rearward and the elevating roller 21 rises to the upper end of the inclined surface of the elevating inclined cam 12, so that the pallet G is lifted to a position higher than the floor surface F. ..
  • the pallet G is moved to a predetermined position by manually pushing (or pulling backward) the pair of operating rods 40 forward.
  • the operation rod 40 is raised and operated to return it to the vertical state, and the crank member 31 is rotated in the reverse direction to operate the elevating drive mechanism 30 and the trolley via the link member 32. 10 moves forward.
  • the elevating roller 21 moves downward from the upper end to the lower end of the inclined surface of the elevating inclined cam 12, so that the load receiving member 20 moves downward, so that the pallet G is lowered onto the floor surface F. ..
  • the pair of pallet loaders 100 can be pulled out from below the pallet G.
  • the pallet loader 100 in the present embodiment has a traveling roller 11 and a plurality of elevating inclined cams 12 having a V-shaped inclined surface, and is laid in a groove formed on the floor surface F.
  • 20 is provided with a pair of elevating drive mechanisms 30 connected to both ends of the trolley 10 to raise and lower the load receiving member 20 with respect to the trolley 10, and an operation rod 40.
  • each of the pair of elevating drive mechanisms 30 has a fitting hole 31a exposed from an opening 22 provided on the upper surface of the load receiving member 20, and is centered on a rotation shaft 33 on one end side by an external force. Crank Both ends of the rotation shaft 33 of the member 31 are inserted into a long hole 23 extending in the longitudinal direction provided on both side walls 20b of the load receiving member 20, and are slidably mounted along the long hole 23.
  • the structure is simple, it can be realized at low cost, and the elevating operation can be easily performed.
  • the pallet loader 100 a configuration example in which a plurality of elevating inclined cams 12 are provided on the carriage 10 and a plurality of elevating rollers 21 are provided on the load receiving member 20 has been described.
  • the invention is not limited to this.
  • a plurality of elevating inclined cams 12 may be provided on the load receiving member 20, and a plurality of elevating rollers 21 may be provided on the carriage 10.
  • the pallet loader has a U-shaped cross section consisting of a bottom surface and both side walls, and a plurality of traveling rollers and a plurality of elevating rollers are provided inside, and a groove-shaped rail formed on the floor surface of the loading platform floor.
  • a dolly that can travel along the trolley and a plurality of elevating inclined cams having a U-shaped cross section consisting of an upper surface and both side walls and an inverted V-shaped inclined surface on which a plurality of elevating rollers can move are provided. It is provided with a load receiving member mounted on the bogie via a plurality of tilting cams for raising and lowering, and a pair of raising and lowering drive mechanisms connected to both ends of the bogie to raise and lower the load receiving member with respect to the bogie. ..
  • the pair of elevating drive mechanisms has the same configuration as the elevating drive mechanism 30 described above. As a result, the same effect as that of the pallet loader 100 described above can be obtained.
  • a substantially semicircular recess 23a into which at least the lower semicircular portion of the rotation shaft 33 can be fitted is formed on the lower side of one end of the elongated hole 23 of the load receiving member 20.
  • the present invention is not limited to this.
  • the shape of the recess 23a may be V-shaped.
  • FIG. 7 schematically shows the external configuration of the pallet loader 100A as the second embodiment of the loader of the present invention.
  • FIG. 8 shows the configuration of the carriage 10A of the pallet loader 100A
  • FIG. 8A is a partial cross-sectional view of a side surface
  • FIG. 8B is a view seen from above.
  • 9A and 9B show the configuration of the load receiving member 20A of the pallet loader 100A
  • FIG. 9A is a partial cross-sectional view of a side surface
  • FIG. 9B is a view seen from below.
  • FIG. 10 shows in detail the operating state of the elevating drive mechanism 30A when lifting the pallet G
  • FIG. 10A shows the state of the elevating drive mechanism 30A on the side operated by the operation rod 40.
  • B) shows the state of the elevating drive mechanism 30A on the non-operated side.
  • the pallet loader 100A of the present embodiment has a plurality of traveling rollers 11 and a plurality of elevating inclined cams 12 having a V-shaped inclined surface, and is formed on the floor surface F.
  • a bogie 10A that can travel along the rail R laid in the groove, and a plurality of elevating cams that are mounted on the bogie 10A and can move along the inclined surfaces of the plurality of elevating inclined cams 12 inside. It includes a load receiving member 20A having a roller 21, a pair of lifting drive mechanisms 30A connected to both ends of the carriage 10A to raise and lower the load receiving member 20A with respect to the carriage 10A, and an operation rod 40.
  • the dolly 10A is formed by sheet metal processing of a stainless steel plate, and has a U-shaped cross section including a bottom surface 10a and both side walls 10b.
  • the bogie 10A has the same configuration as the bogie 10 of the first embodiment described above, except for the configuration of a pair of elevating drive mechanisms 30A connected to both ends thereof. Therefore, detailed description of similar components will be omitted.
  • the consignment member 20A is formed by sheet metal processing of a stainless steel plate, and has a U-shaped cross section including an upper surface 20a and both side walls 20b.
  • a pair of shaft holes 23A are provided on both end sides of both side walls 20b of the load receiving member 20A. Both ends of the rotation shaft 33 of the crank member 31A are inserted into the pair of shaft holes 23A.
  • the pair of elevating drive mechanism 30A has a fitting hole 31a exposed from an opening 22 provided in the upper surface 20a of the load receiving member 20A, and is rotated on one end side by an external force (operation of the operation rod 40).
  • a crank member 31A that can rotate around a shaft 33, one end of which is rotatably connected to the other end of the crank member 31A via a connecting shaft 35, and the other end of which is rotatably connected to the other ends of the bogie 10A via a connecting shaft 34. It includes a link member 32A connected to 10b. Both ends of the rotating shaft 33 are inserted into and mounted on a pair of shaft holes 23A provided on both side walls 20b of the load receiving member 20A.
  • the crank member 31A includes an upper member 31A 1 which are insertion hole 31a is provided, the lower member 31A 2 for supporting the upper member 31A 1, an upper member 31A 1 and the lower member 31A 2 Is composed of an engaging rotation shaft 36A that rotatably engages on the side to which the link member 32A is connected, and a rotation shaft 33 is provided on the free end side of the upper member 31A 1 and the lower member 31A 2, respectively. Recessions 31b and 31c into which the upper semicircle and the lower semicircle can be fitted are formed. Further, the lower member 31A 2 is also provided with an insertion hole 31a, and the insertion portion 41 of the operation rod 40 can be fitted into the insertion hole 31a of the lower member 31A 2.
  • the recesses 31b and 31c of the upper member 31A 1 and the lower member 31A 2 form the upper semicircle portion of the rotation shaft 33 and the lower half circle.
  • the bogie 10A can be moved rearward by fitting the lower semicircle portion and rotating the crank member 31A around the rotation shaft 33 (see FIG. 10A).
  • the crank member 31A on the non-operated side is pulled with the movement of the carriage 10A, and the rotating shaft 33 is configured to separate from these recesses 31b and 31c (see FIG. 10B).
  • the carriage 10A is pulled toward the operated side, the load receiving member 20A rises, and the pallet G is lifted to a position higher than the floor surface F.
  • the crank member 31A is securely pivotally attached to the rotating shaft 33, so that the pallet G can be reliably lifted without dropping during the raising operation.
  • the pallet loader 100A in the present embodiment includes a carriage 10A, a load receiving member 20A, a pair of elevating drive mechanism 30A, and an operation rod 40.
  • the elevating drive mechanism 30A includes a crank member 31A and a link member 32A, and both ends of the rotation shaft 33 of the crank member 31A are inserted into and mounted on shaft holes 23A provided on both side walls 20b of the load receiving member 20A.
  • the crank member 31A is composed of an upper member 31A 1 , a lower member 31A 2, and an engaging rotation shaft 36A, and a rotation shaft is provided on the free end side of the upper member 31A 1 and the lower member 31A 2, respectively.
  • Recessions 31b and 31c into which the upper semicircle and the lower semicircle of 33 can be fitted are formed.
  • the luggage can be lifted from the floor surface F of the cargo bed floor and pushed forward to move the cargo (pallet G). You do not have to pull the luggage backwards when you carry it out, and you can work more safely.
  • the structure is simple and can be realized at low cost, and the ascending / descending operation can be easily and surely performed.
  • the present invention can be used for the purpose of moving cargo placed on the floor of a cargo-only vehicle having a rail-shaped groove on the floor or a warehouse, for example, luggage loaded on a pallet.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Handcart (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

This loader is provided with: a cart that includes travel rollers and a plurality of inclined cams for raising/lowering having a V-shaped inclined surface, said cart being capable of traveling along groove-like rails formed in the floor surface of a loading platform floor; a load-receiving member that has a U-shaped cross-sectional surface comprising an upper surface and two side walls and in which a plurality of rollers for raising/lowering capable of moving along the inclined surfaces of the inclined cams for raising/lowering are provided on the inner side, said load-receiving member being mounted on the cart via the plurality of rollers for raising/lowering; and a pair of raising/lowering drive mechanisms that are connected to each of the two ends of the cart and raise or lower the load-receiving member with respect to the cart.

Description

ローダloader
　本発明は、床にレール状溝を有する貨物専用車両や倉庫等の床面に置かれた荷物、例えばパレットに積載された荷物を移動するためのローダに関する。 The present invention relates to a loader for moving cargo placed on the floor of a cargo-only vehicle having a rail-shaped groove on the floor, a warehouse, or the like, for example, luggage loaded on a pallet.
　貨物専用車両や倉庫などの荷台床に配置してある互いに平行な対のローダ用溝に差し入れ、荷受部（積載部）の昇降動作を通じて荷台床上の荷物を所定位置まで移動して格納する積み込みのため、及び格納位置から荷物を移動し外部に運び出す積み出しのために用いるローダは公知である（例えば、特許文献１参照）。 For loading, the cargo is inserted into a pair of loader grooves parallel to each other placed on the cargo bed floor of a cargo-only vehicle or warehouse, and the cargo on the cargo bed floor is moved to a predetermined position and stored through the lifting operation of the cargo receiving section (loading section). Therefore, a loader used for unloading the cargo from the storage position and carrying the cargo to the outside is known (see, for example, Patent Document 1).
　特許文献１に記載されたローダは、ローダ本体と作動装置とを具備しており、ローダ本体は、下側に位置しているローラフレームと、上側に位置しているローダベースと、ローラフレームとローダベースとの間に配置されたベースガイドとを備えている。ローダ本体は、その上面で荷物を積載した状態（荷受状態）で車両などの荷台床内に設けられているレール内を走行し、荷物の格納位置まで移動することができる。作動装置は、ローダベースの後端部側に配置されたローダベースを昇降動作させるための作動装置本体と、この作動装置を動作させるための操作棒とからなる。 The loader described in Patent Document 1 includes a loader main body and an operating device, and the loader main body includes a roller frame located on the lower side, a loader base located on the upper side, and a roller frame. It has a base guide placed between it and the loader base. The loader body can travel in a rail provided in the floor of a vehicle or the like with the load loaded on the upper surface thereof (the state of receiving the load), and can move to the storage position of the load. The actuating device includes an actuating device main body for raising and lowering the loader base arranged on the rear end side of the loader base, and an operating rod for operating the actuating device.
　この種のローダは以下のように操作される。貨物専用車両や倉庫等において、床面に置かれた荷物を移動する際には、１対のローダ本体を荷物の下に設置された１対のローダ用レール溝内にそれぞれ差し入れる。また、１対のローダ本体が１対のローダ用レール溝内にあらかじめ収められている際には、荷物を１対のローダ本体が存在するレール溝上に載置する。次いで、１対の操作棒（操作ロッド）の挿入部をローダの作動装置の作動体の操作孔内にそれぞれ差し込み、これら１対の操作ロッドをギアシャフトを支点として後方側に倒すと、ローダベース及びベースガイドが後方へ引っ張られ、荷受部が荷台床の床面より徐々に上昇する。これにより、荷受部上に積載されている荷物は押し上げられ床面を離れる。次いで、両操作ロッドを所定角度倒した荷受状態のまま、手押し車のようにローダ本体をレール上で前進させ、荷物を格納位置に移動をさせる。これら操作ロッドを前方側に起こし、垂直状態に戻せば、荷受部は降下し、最終的にレール溝内に納まる。その後、垂直の状態にある両操作ロッドを持って、ローダ本体をレールに沿って後退させ、両操作ロッドをローダ本体からそれぞれ取り外す。 This kind of loader is operated as follows. When moving a load placed on the floor in a cargo-only vehicle or a warehouse, a pair of loader bodies are inserted into a pair of loader rail grooves installed under the load. When the pair of loader bodies are preliminarily housed in the pair of loader rail grooves, the load is placed on the rail groove in which the pair of loader bodies are present. Next, the insertion portions of the pair of operating rods (operation rods) are inserted into the operating holes of the operating body of the loader operating device, and the pair of operating rods are tilted rearward with the gear shaft as a fulcrum. And the base guide is pulled backward, and the receiving part gradually rises above the floor surface of the loading platform. As a result, the luggage loaded on the receiving portion is pushed up and leaves the floor surface. Next, the loader body is advanced on the rail like a wheelbarrow while the load receiving state is tilted by a predetermined angle, and the load is moved to the storage position. When these operating rods are raised to the front side and returned to the vertical state, the load receiving portion descends and finally fits in the rail groove. After that, hold both operating rods in a vertical state, retract the loader body along the rail, and remove both operating rods from the loader body.
特開２００５－１５４１２６号公報Japanese Unexamined Patent Publication No. 2005-154126
　特許文献１に記載されているごとき従来のローダは、貨物専用車両等の荷台床にある荷物を積み込み、又は格納位置から荷物を移動し外部に運び出す際に、車両後方の開口部からローダを荷台床のローダ用溝に挿入し、操作ロッドを後方へ引っ張ることで、荷受部が荷台床の床面より上昇させ、前へ又は後ろへ運びするため、特に車両後方の開口部付近の荷物を後ろへ運び出す場合、作業者が車両等の荷台から落ちる危険性があった。また、荷物を外部に運び出す際に後向きで荷物を引っ張ることしかできないため、作業性が悪いという問題点があった。 The conventional loader as described in Patent Document 1 loads the loader from the opening at the rear of the vehicle when loading the load on the cargo bed floor of a cargo-only vehicle or moving the load from the storage position and carrying it out. By inserting it into the loader groove on the floor and pulling the operation rod backward, the cargo receiving part rises above the floor surface of the cargo bed floor and is carried forward or backward, so that the cargo near the opening at the rear of the vehicle is especially rearward. When carrying it out, there was a risk that the worker would fall off the loading platform of the vehicle or the like. In addition, there is a problem that workability is poor because the luggage can only be pulled backward when the luggage is carried out.
　また、車両後方の開口部側でも、車両荷台の奥側でも操作ロッドを使っても荷物を荷台の床の床面より持ち上げて、前へ押すことで移動させる作業ができるローダが要望されている。 In addition, there is a demand for a loader that can lift the cargo from the floor surface of the cargo bed and push it forward to move it, whether it is on the opening side at the rear of the vehicle, at the back side of the cargo bed, or by using an operation rod. ..
　さらに、特許文献１に記載されている従来のローダは、作動装置の構成が複雑で制作コストが高いという問題点もあった。 Further, the conventional loader described in Patent Document 1 has a problem that the configuration of the operating device is complicated and the production cost is high.
　従って、本発明は従来技術の上述した問題点を解消するものであり、本発明の目的は、床にレール状溝を有する貨物専用車両や倉庫等の床面に置かれたパレットに積載された荷物に対して、車両等の後方の開口部側でも、車両荷台の奥側でも操作ロッドを使って荷物を荷台床の床面より持ち上げて、前へ押すことで移動させる作業ができ、かつ構造が簡単で容易に操作することができるローダを提供することにある。 Therefore, the present invention solves the above-mentioned problems of the prior art, and an object of the present invention is to load the cargo on a pallet placed on the floor of a cargo-only vehicle or a warehouse having a rail-shaped groove on the floor. With respect to the cargo, it is possible to lift the cargo from the floor surface of the cargo bed using the operation rod and push it forward to move it, whether it is on the rear opening side of the vehicle or on the back side of the cargo bed. Is to provide a loader that is easy and easy to operate.
　本発明によれば、ローダは、底面と両側壁とからなるコ字形断面を有し、内側に複数の走行ローラとＶ形の傾斜面を有する複数の昇降用傾斜カムとが設けられ、荷台床の床面に形成された溝状のレールに沿って走行可能な台車と、上面と両側壁とからなるコ字形断面を有し、内側に複数の昇降用傾斜カムの傾斜面に沿って移動可能な複数の昇降用ローラが設けられ、複数の昇降用ローラを介して台車に載設される荷受部材と、台車の両端側にそれぞれ連結されて荷受部材を台車に対して昇降させる１対の昇降駆動機構とを備えている。 According to the present invention, the loader has a U-shaped cross section including a bottom surface and both side walls, and is provided with a plurality of traveling rollers and a plurality of elevating inclined cams having a V-shaped inclined surface inside, and is provided with a loading platform. It has a U-shaped cross section consisting of a dolly that can run along the groove-shaped rails formed on the floor surface of the floor and the upper surface and both side walls, and can move inside along the inclined surface of multiple elevating inclined cams. A pair of elevating and lowering rollers are provided, and a consignment member mounted on the bogie via the plurality of elevating rollers and a pair of elevating and lowering members connected to both ends of the bogie to raise and lower the receiving member with respect to the bogie. It is equipped with a drive mechanism.
　また、本発明によれば、ローダは、底面と両側壁とからなるコ字形断面を有し、内側に複数の走行ローラと複数の昇降用ローラとが設けられ、荷台床の床面に形成された溝状のレールに沿って走行可能な台車と、上面と両側壁とからなるコ字形断面を有し、内側に複数の昇降用ローラが当接し移動可能な逆Ｖ形の傾斜面を有する複数の昇降用傾斜カムが設けられ、複数の昇降用傾斜カムを介して台車に載設される荷受部材と、台車の両端側にそれぞれ連結されて荷受部材を台車に対して昇降させる１対の昇降駆動機構とを備えている。 Further, according to the present invention, the loader has a U-shaped cross section including a bottom surface and both side walls, and a plurality of traveling rollers and a plurality of elevating rollers are provided inside, and the loader is formed on the floor surface of the loading platform. A dolly that can run along a groove-shaped rail, and a U-shaped cross section consisting of an upper surface and both side walls, and a plurality of inverted V-shaped inclined surfaces that can be moved with a plurality of elevating rollers in contact with each other. A pair of elevating and lowering cams is provided, and a load receiving member mounted on the bogie via a plurality of elevating and lowering cams and a pair of elevating members connected to both ends of the bogie to raise and lower the receiving member with respect to the bogie. It is equipped with a drive mechanism.
　荷受部材を台車に対して昇降させる１対の昇降駆動機構を台車の両端側にそれぞれ配置することにより、床にレール状溝を有する貨物専用車両や倉庫等の床面に置かれたパレットに積載された荷物に対して、例えば車両等の後方の開口部側でも、車両荷台の奥側でも操作ロッドを使っても荷物を荷台床の床面より持ち上げて、前へ押すことで移動させる作業ができる。荷物を外部に運び出す際に後向きで荷物を引っ張る作業をしなくても良い、より安全に作業を行うことができる。 By arranging a pair of elevating drive mechanisms that move the consignment member up and down with respect to the trolley on both ends of the trolley, it can be loaded onto a pallet placed on the floor of a cargo-only vehicle or warehouse that has a rail-shaped groove on the floor. For example, the work of lifting the cargo from the floor surface of the cargo bed and pushing it forward to move the cargo, whether it is on the rear opening side of the vehicle, the back side of the vehicle carrier, or using the operation rod. can. You do not have to pull the luggage backwards when you carry it out, and you can work more safely.
　１対の昇降駆動機構の各々は、荷受部材の上面に設けられた開口部から露出する嵌挿穴を有し、外部からの力によって一端側の回動軸を中心に回動可能なクランク部材と、一端がクランク部材の他端に回動自在に連結され、他端が台車の端部に回動可能に連結されたリンク部材とを備え、クランク部材の回動軸の両端は、荷受部材の両側壁に設けられた長手方向に延びる長孔に挿通され、かつ該長孔に沿ってスライド可能に装着されていることが好ましい。これにより、構造が簡単で、昇降動作を容易に行うことができる。 Each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and is a crank member that can rotate around a rotation shaft on one end side by an external force. And a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the bogie. It is preferable that the crank is inserted into a long hole extending in the longitudinal direction provided on both side walls of the above and is slidably mounted along the long hole. As a result, the structure is simple and the ascending / descending operation can be easily performed.
　挿入部が昇降駆動機構の嵌挿穴に嵌接可能な操作ロッドをさらに備えており、操作ロッドは挿入部が嵌挿穴に嵌接された状態で後方へ引っ張られることによりクランク部材を回動させると共に、台車を後方へ移動させ、荷受部材を上昇させるように構成されていることも好ましい。 The insertion part is further equipped with an operation rod that can be fitted into the insertion hole of the elevating drive mechanism, and the operation rod rotates the crank member by being pulled backward with the insertion part fitted in the insertion hole. It is also preferable that the bogie is moved backward and the consignment member is raised.
　長孔の一端部の下辺には回動軸の少なくとも下半円部が嵌入可能な凹部が形成されていることがより好ましい。 It is more preferable that a recess into which at least the lower semicircle of the rotating shaft can be fitted is formed on the lower side of one end of the elongated hole.
　１対の昇降駆動機構の各々は、荷受部材の上面に設けられた開口から露出する嵌挿穴を有し、外部からの力によって一端側の回動軸を中心に回動可能なクランク部材と、一端が前記クランク部材の他端に回動自在に連結され、他端が台車の端部に回動可能に連結されたリンク部材とを備え、クランク部材は、嵌挿穴が設けられた上部部材と、この上部部材を支持する下部部材と、上部部材と下部部材とを、リンク部材が連結される側において回動自在に係合する係合回動軸とから構成され、上部部材及び下部部材の自由端側には、それぞれ回動軸の上半円部と下半円部が嵌入可能な凹部が形成されていることも好ましい。 Each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and a crank member that can rotate around a rotation shaft on one end side by an external force. The crank member is provided with a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the carriage, the crank member having an upper portion provided with a fitting hole. It is composed of a member, a lower member that supports the upper member, and an engaging rotation shaft that rotatably engages the upper member and the lower member on the side where the link member is connected, and is composed of the upper member and the lower part. It is also preferable that the free end side of the member is formed with recesses into which the upper half circle portion and the lower half circle portion of the rotation shaft can be fitted, respectively.
　この場合、挿入部が昇降駆動機構の嵌挿穴に嵌接可能な操作ロッドをさらに備えており、操作ロッドは挿入部が嵌挿穴に嵌接された状態で後方へ引っ張られることによりクランク部材を回動させると共に、台車を後方へ移動させ、荷受部材を上昇させるように構成されていることがより好ましい。 In this case, the insertion portion is further provided with an operation rod that can be fitted into the fitting / insertion hole of the elevating drive mechanism, and the operation rod is pulled backward with the insertion portion fitted into the fitting / insertion hole to form a crank member. It is more preferable that the dolly is moved backward while rotating the load receiving member to raise the load receiving member.
　本発明によれば、荷受部材を台車に対して昇降させる１対の昇降駆動機構を台車の両端側にそれぞれ配置することにより、床にレール状溝を有する貨物専用車両や倉庫等の床面に置かれたパレットに積載された荷物に対して、例えば車両等の後方の開口部側でも、車両荷台の奥側でも操作ロッドを使っても荷物を荷台床の床面より持ち上げて、前へ押すことで移動させる作業ができる。 According to the present invention, by arranging a pair of elevating drive mechanisms for raising and lowering the load receiving member with respect to the trolley on both ends of the trolley, the floor surface of a cargo-only vehicle or a warehouse having a rail-shaped groove on the floor can be used. For the cargo loaded on the placed pallet, for example, whether it is on the rear opening side of the vehicle, the back side of the vehicle carrier, or using the operation rod, the cargo is lifted from the floor surface of the cargo bed and pushed forward. You can move it by doing this.
　また、１対の昇降駆動機構の各々は、荷受部材の上面に設けられた開口部から露出する嵌挿穴を有し、外部からの力によって一端側の回動軸を中心に回動可能なクランク部材と、一端がクランク部材の他端に回動自在に連結され、他端が台車の端部に回動可能に連結されたリンク部材とを備え、クランク部材の回動軸の両端は、荷受部材の両側壁に設けられた長手方向に延びる長孔に挿通され、かつ該長孔に沿ってスライド可能に装着されていることで、構造が簡単で、かつ低コストで実現でき、昇降動作を容易に行うことができる。 Further, each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and is rotatable about a rotation shaft on one end side by an external force. The crank member is provided with a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the bogie. The structure is simple and can be realized at low cost by being inserted into a long hole extending in the longitudinal direction provided on both side walls of the load receiving member and slidably mounted along the long hole, and the elevating operation can be realized. Can be easily performed.
本発明の第１の実施形態におけるローダの外観構成を示す斜視図である。It is a perspective view which shows the appearance structure of the loader in 1st Embodiment of this invention. 図１のローダの台車及び昇降駆動機構の構成を示す側面断面図及び上面図である。It is a side sectional view and the top view which shows the structure of the bogie of the loader of FIG. 1 and the elevating drive mechanism. 図１のローダの荷受部材の構成を示す側面断面図及び下面図である。It is a side sectional view and a bottom view which shows the structure of the load receiving member of the loader of FIG. 図１のローダの内部構成を分解して示す側面断面図である。It is a side sectional view which shows the internal structure of the loader of FIG. 1 by disassembling. 図１のローダの内部構成を示す組み立て状態及びパレットを持ち上げた状態の側面断面図である。FIG. 3 is a side sectional view showing an assembled state showing the internal configuration of the loader of FIG. 1 and a state in which the pallet is lifted. 図１のローダの昇降駆動機構によるパレットを持ち上げる動作を詳細に示す斜視図である。It is a perspective view which shows the operation which lifts a pallet by the elevating drive mechanism of the loader of FIG. 1 in detail. 本発明の第２の実施形態におけるローダの外観構成を示す斜視図である。It is a perspective view which shows the appearance structure of the loader in 2nd Embodiment of this invention. 図７のローダの台車及び昇降駆動機構の構成を示す側面断面図及び上面図である。FIG. 7 is a side sectional view and a top view showing the configuration of the trolley of the loader and the elevating drive mechanism of FIG. 7. 図７のローダの荷受部材の構成を示す側面断面図及び下面図である。FIG. 7 is a side sectional view and a bottom view showing a configuration of a load receiving member of the loader of FIG. 7. 図７のローダの昇降駆動機構によるパレットを持ち上げる動作を詳細に示す側面断面図である。FIG. 6 is a side sectional view showing in detail the operation of lifting the pallet by the lifting drive mechanism of the loader of FIG. 7.
　以下、本発明に係るローダの実施形態を、図を参照して説明する。この実施形態は、荷物としてパレットを扱うパレットローダに関するものであり、その台車の昇降動作を操作ロッドを用いて手動で行う構成となっている。このローダは、貨物専用車両や倉庫等の床面について、前後に平行に形成された溝状のレールに沿って走行可能である。 Hereinafter, embodiments of the loader according to the present invention will be described with reference to the drawings. This embodiment relates to a pallet loader that handles pallets as luggage, and is configured to manually raise and lower the trolley using an operation rod. This loader can run along a groove-shaped rail formed in parallel in the front-rear direction on the floor surface of a freight vehicle, a warehouse, or the like.
　図１は本発明のローダの第１の実施形態としてのパレットローダ１００の外観構成を概略的に示している。図２はこのパレットローダ１００の台車１０の構成を示しており、同図（Ａ）は側面の部分断面図であり、（Ｂ）は上から見た図である。図３はパレットローダ１００の荷受部材２０の構成を示しており、同図（Ａ）は側面の部分断面図であり、（Ｂ）は下から見た図である。図４はパレットローダ１００の内部構成を分解して示している。図５はパレットローダ１００の内部構成を示す組み立て状態及びパレットを持ち上げた状態の側面断面図である。図６は昇降駆動機構３０によるパレットＧを持ち上げる動作を詳細に示しており、同図（Ａ）はパレットローダ１００を溝状のレールに挿入して操作ロッド４０を嵌挿穴３１ａに嵌接された状態を示しており、（Ｂ）は昇降駆動機構３０によるパレットＧを持ち上げる状態を示している。 FIG. 1 schematically shows an external configuration of a pallet loader 100 as a first embodiment of the loader of the present invention. FIG. 2 shows the configuration of the carriage 10 of the pallet loader 100, FIG. 2A is a partial cross-sectional view of a side surface, and FIG. 2B is a view seen from above. FIG. 3 shows the configuration of the load receiving member 20 of the pallet loader 100, FIG. 3A is a partial cross-sectional view of a side surface, and FIG. 3B is a view seen from below. FIG. 4 shows the internal configuration of the pallet loader 100 in an exploded manner. FIG. 5 is a side sectional view showing an assembled state showing the internal configuration of the pallet loader 100 and a state in which the pallet is lifted. FIG. 6 shows in detail the operation of lifting the pallet G by the elevating drive mechanism 30, and FIG. 6A shows that the pallet loader 100 is inserted into the groove-shaped rail and the operation rod 40 is fitted into the insertion hole 31a. (B) shows a state in which the pallet G is lifted by the elevating drive mechanism 30.
　図１から図６に示すように、本実施形態のパレットローダ１００は、複数の走行ローラ１１とＶ形の傾斜面を有する複数の昇降用傾斜カム１２とを有し、床面Ｆに形成された溝内に敷設されたレールＲに沿って走行可能な台車１０と、この台車１０上に載設され、内側に複数の昇降用傾斜カム１２の傾斜面に沿って移動可能な複数の昇降用ローラ２１を有する荷受部材２０と、台車１０の両端側にそれぞれ連結されて荷受部材２０を台車１０に対して昇降させる１対の昇降駆動機構３０と、操作ロッド４０とを備えている。 As shown in FIGS. 1 to 6, the pallet loader 100 of the present embodiment has a plurality of traveling rollers 11 and a plurality of elevating inclined cams 12 having a V-shaped inclined surface, and is formed on the floor surface F. A bogie 10 that can travel along the rail R laid in the groove, and a plurality of elevating cams that are mounted on the bogie 10 and can move along the inclined surfaces of the plurality of elevating inclined cams 12 inside. It includes a load receiving member 20 having a roller 21, a pair of lifting drive mechanisms 30 connected to both ends of the carriage 10 to raise and lower the load receiving member 20 with respect to the carriage 10, and an operation rod 40.
　台車１０は、図２に示すように、ステンレス板を板金加工することにより形成され、底面１０ａと両側壁１０ｂとからなるコ字形断面を有するものである。底面１０ａには複数（例えば、６個）の走行ローラ１１を配置するための複数の開口部１０ｃが形成されている。両側壁１０ｂには、走行ローラ１１の軸１１ａが挿通されている。各走行ローラ１１はこの軸１１ａに対して回転自在に軸支されている。また、底面１０ａの上には、Ｖ形の傾斜面を有する複数（例えば、３個）の昇降用傾斜カム１２が長手方向に沿って設けられている。この台車１０は、床面Ｆに形成されたローダ用溝内に敷設されたレールＲに沿って走行可能である。なお、台車１０の両端側に１対の昇降駆動機構３０がそれぞれ連結されている。 As shown in FIG. 2, the dolly 10 is formed by sheet metal processing of a stainless steel plate, and has a U-shaped cross section including a bottom surface 10a and both side walls 10b. A plurality of openings 10c for arranging a plurality of (for example, six) traveling rollers 11 are formed on the bottom surface 10a. A shaft 11a of a traveling roller 11 is inserted through both side walls 10b. Each traveling roller 11 is rotatably supported with respect to the shaft 11a. Further, on the bottom surface 10a, a plurality of (for example, three) elevating inclined cams 12 having a V-shaped inclined surface are provided along the longitudinal direction. The carriage 10 can travel along the rail R laid in the loader groove formed on the floor surface F. A pair of elevating drive mechanisms 30 are connected to both ends of the bogie 10.
　荷受部材２０は、図３に示すように、ステンレス板を板金加工することにより形成され、上面２０ａと両側壁２０ｂとからなるコ字形断面を有するものである。内側（即ち、上面２０ａの下部）に複数（例えば、３個）の昇降用ローラ２１が長手方向に沿って設けられている。これら複数の昇降用ローラ２１は複数（例えば、３個）の昇降用傾斜カム１２のＶ形の傾斜面のいずれかの辺に沿って移動可能に構成されている。この荷受部材２０は、複数の昇降用ローラ２１を介して台車１０の上に載設され、即ち、複数の昇降用ローラ２１により支持されている。荷受部材２０が通常位置（降下位置）にあるとき、各昇降用ローラ２１はＶ形の傾斜面を有する昇降用傾斜カム１２のＶ形の傾斜面の中央（Ｖ形の下角部）に位置されている状態となり（図５（Ａ）参照）、一方、荷受部材２０が上昇位置にあるとき、各昇降用ローラ２１は昇降用傾斜カム１２のＶ形の傾斜面の上端部（平面部）に当接されている状態となるとなる（図５（Ｂ）参照）。また、荷受部材２０の両端側の上面の昇降駆動機構３０に対応する位置に操作ロッド４０の挿入部４１が挿入し昇降駆動機構３０の引き起こし操作を行うための開口部２２が設けられている。また、荷受部材２０の両側壁２０ｂの両端側に長手方向に延びる１対の長孔２３がそれぞれ設けられている。この１対の長孔２３はクランク部材３１の回動軸３３の両端が挿通され、かつ長孔２３に沿ってスライド可能に形成されている。また、長孔２３の一端部（即ち、荷受部材２０の長さ方向の端面側の端部）の下辺には回動軸３３の少なくとも下半円部が嵌入可能な略半円形の凹部２３ａが形成されている。この凹部２３ａは、昇降駆動機構３０の引き起こし操作を行う際に、クランク部材３１の回動軸３３の位置決めとして機能する。即ち、操作ロッド４０を後ろ側へ引っ張る際に、操作される側のクランク部材３１の回動軸３３が長孔２３の中心線位置から下へ移動し凹部２３ａに嵌入して長孔２３に沿ってスライドしないようにすることで、台車１０を後方へ移動させることができる。一方、操作されていない側のクランク部材３１の回動軸３３が台車１０の移動と共に長孔２３に沿ってスライドすることができる。これにより、台車１０が操作される側に引っ張られると共に、荷受部材２０が上昇するようになる。 As shown in FIG. 3, the consignment member 20 is formed by sheet metal processing of a stainless steel plate and has a U-shaped cross section including an upper surface 20a and both side walls 20b. A plurality of (for example, three) elevating rollers 21 are provided on the inner side (that is, the lower part of the upper surface 20a) along the longitudinal direction. The plurality of elevating rollers 21 are configured to be movable along any side of the V-shaped inclined surface of the plurality of (for example, three) elevating inclined cams 12. The load receiving member 20 is mounted on the carriage 10 via a plurality of elevating rollers 21, that is, is supported by the plurality of elevating rollers 21. When the load receiving member 20 is in the normal position (descent position), each elevating roller 21 is located at the center of the V-shaped inclined surface (V-shaped lower corner portion) of the elevating inclined cam 12 having the V-shaped inclined surface. On the other hand, when the load receiving member 20 is in the ascending position, each elevating roller 21 is placed on the upper end (flat surface) of the V-shaped inclined surface of the elevating inclined cam 12. It will be in a state of being in contact (see FIG. 5B). Further, an opening 22 is provided for inserting the insertion portion 41 of the operation rod 40 into the position corresponding to the elevating drive mechanism 30 on the upper surface on both end sides of the load receiving member 20 to raise and operate the elevating drive mechanism 30. Further, a pair of elongated holes 23 extending in the longitudinal direction are provided on both end sides of both side walls 20b of the load receiving member 20. Both ends of the rotation shaft 33 of the crank member 31 are inserted through the pair of elongated holes 23, and the pair of elongated holes 23 is slidably formed along the elongated holes 23. Further, at the lower end of one end of the elongated hole 23 (that is, the end on the end face side in the length direction of the load receiving member 20), a substantially semicircular recess 23a into which at least the lower semicircular portion of the rotation shaft 33 can be fitted is provided. It is formed. The recess 23a functions as a positioning of the rotation shaft 33 of the crank member 31 when the elevating drive mechanism 30 is raised and operated. That is, when the operation rod 40 is pulled backward, the rotation shaft 33 of the crank member 31 on the operated side moves downward from the center line position of the elongated hole 23 and fits into the recess 23a along the elongated hole 23. The dolly 10 can be moved backward by preventing it from sliding. On the other hand, the rotation shaft 33 of the crank member 31 on the non-operated side can slide along the elongated hole 23 with the movement of the carriage 10. As a result, the carriage 10 is pulled toward the operated side, and the load receiving member 20 is raised.
　１対の昇降駆動機構３０は、連結軸３４を介して台車１０の両端側にそれぞれ連結されて、荷受部材２０を台車１０に対して昇降させるものである。この１対の昇降駆動機構３０の各々は、荷受部材２０の上面２０ａに設けられた開口２２から露出する嵌挿穴３１ａを有し、外部からの力（操作ロッド４０の操作）によって一端側の回動軸３３を中心に回動可能なクランク部材３１と、一端がクランク部材３１の他端に連結軸３５を介して回動自在に連結され、他端が連結軸３４を介して台車１０の両側壁１０ｂに連結されたリンク部材３２とを備えている。クランク部材３１の回動軸３３の両端は、荷受部材２０の両側壁２０ｂに設けられた長手方向に延びる長孔２３に挿通され、かつ長孔２３に沿ってスライド可能に装着されている。クランク部材３１において、回動軸３３の軸中心が連結軸３５の軸中心より高い位置になるように形成されている。また、クランク部材３１の嵌挿穴３１ａは操作ロッド４０の挿入部４１が挿脱可能に形成されている。 The pair of elevating drive mechanisms 30 are connected to both ends of the bogie 10 via a connecting shaft 34, and raise and lower the load receiving member 20 with respect to the bogie 10. Each of the pair of elevating drive mechanisms 30 has a fitting hole 31a exposed from an opening 22 provided in the upper surface 20a of the load receiving member 20, and is one end side by an external force (operation of the operation rod 40). A crank member 31 that can rotate around a rotating shaft 33, one end of which is rotatably connected to the other end of the crank member 31 via a connecting shaft 35, and the other end of the carriage 10 via a connecting shaft 34. It is provided with a link member 32 connected to both side walls 10b. Both ends of the rotation shaft 33 of the crank member 31 are inserted into a long hole 23 extending in the longitudinal direction provided on both side walls 20b of the load receiving member 20, and are slidably mounted along the long hole 23. In the crank member 31, the axis center of the rotating shaft 33 is formed so as to be higher than the axis center of the connecting shaft 35. Further, the insertion hole 31a of the crank member 31 is formed so that the insertion portion 41 of the operation rod 40 can be inserted and removed.
　１対の昇降駆動機構３０の各々において、操作ロッド４０の挿入部４１が嵌挿穴３１ａに嵌接された状態で後方へ引っ張られることで、リンク部材３２を介して台車１０を後方向（引っ張る方向）に移動させることができる。台車１０が後方向に移動すると共に、荷受部材２０の昇降用ローラ２１が昇降用傾斜カム１２の斜面に沿ってＶ形の傾斜面の上端まで上り、高い位置に移動するように構成されている。一方、操作ロッド４０でクランク部材３１を元の位置に戻すと、台車１０が前方に移動すると共に、荷受部材２０の昇降用ローラ２１が昇降用傾斜カム１２の斜面に沿ってＶ形の傾斜面の下端まで下り、低い位置に移動するように構成されている。これにより、荷受部材２０が上下方向に昇降する。 In each of the pair of elevating drive mechanisms 30, the insertion portion 41 of the operation rod 40 is pulled backward while being fitted into the insertion hole 31a, thereby pulling the carriage 10 backward (pulling) via the link member 32. Can be moved in the direction). As the carriage 10 moves in the rear direction, the elevating roller 21 of the load receiving member 20 rises along the slope of the elevating inclined cam 12 to the upper end of the V-shaped inclined surface, and is configured to move to a high position. .. On the other hand, when the crank member 31 is returned to the original position by the operation rod 40, the bogie 10 moves forward and the elevating roller 21 of the load receiving member 20 has a V-shaped inclined surface along the inclined surface of the elevating inclined cam 12. It is configured to go down to the bottom of the and move to a lower position. As a result, the load receiving member 20 moves up and down in the vertical direction.
　操作ロッド４０は、昇降駆動機構３０のクランク部材３１の嵌挿穴３１ａに挿入する挿入部４１を備えている。挿入部４１を嵌挿穴３１ａ内に挿入し、後方へ倒すことにより、クランク部材３１が回動軸３３を軸として回動させることができる。この操作ロッド４０を後方側に倒したり前方側に起こすことにより荷受部材２０の昇降を行うことができる。 The operation rod 40 includes an insertion portion 41 to be inserted into the insertion hole 31a of the crank member 31 of the elevating drive mechanism 30. By inserting the insertion portion 41 into the fitting insertion hole 31a and tilting it backward, the crank member 31 can be rotated around the rotation shaft 33. The load receiving member 20 can be raised and lowered by tilting the operating rod 40 to the rear side or raising it to the front side.
　図４に示すように、パレットローダ１００は、荷受部材２０を台車１０の上に載せ、即ち、荷受部材２０の複数の昇降用ローラ２１が複数の昇降用傾斜カム１２のＶ形の傾斜面の下端（昇降用傾斜カム１２中央のＶ形の角部）にそれぞれ当接することで、平常位置（組み立て状態）として荷受部材２０が台車１０に安定的に載設される。 As shown in FIG. 4, in the pallet loader 100, the load receiving member 20 is placed on the carriage 10, that is, the plurality of elevating rollers 21 of the receiving member 20 are on the V-shaped inclined surface of the plurality of elevating inclined cams 12. The load receiving member 20 is stably mounted on the trolley 10 as a normal position (assembled state) by abutting on the lower ends (V-shaped corners at the center of the elevating inclined cam 12).
　以下、パレットローダ１００を用いてパレットに積載された荷物を移動する際の操作を説明する。図５（Ａ）及び図６（Ａ）はパレットローダ１００が床面Ｆに形成されたローダ用溝内に敷設されたレールＲ上のパレットＧの下方に挿入されている状態を示しており、図５（Ｂ）及び図６（Ｂ）はパレットローダ１００によりパレットＧが床面Ｆより高い位置に持ち上げられている状態を示している。 Hereinafter, the operation when moving the load loaded on the pallet using the pallet loader 100 will be described. 5 (A) and 6 (A) show a state in which the pallet loader 100 is inserted below the pallet G on the rail R laid in the loader groove formed on the floor surface F. 5 (B) and 6 (B) show a state in which the pallet G is lifted to a position higher than the floor surface F by the pallet loader 100.
　図５（Ａ）及び図６（Ａ）に示すように、パレットローダ１００を床面Ｆに形成されたレールＲに沿ってパレットＧの下部に挿入する際、及びパレットローダ１００が既に設置されているレールＲ上にパレットＧを積み込む際は、荷受部材２０が降下位置（平常位置）にあり、荷受部材２０の上面２０ａが床面Ｆより低いため、パレットローダ１００はパレットＧに接触しない。従って、パレットローダ１００をスムーズに挿入又は引抜くことができる。次いで、操作ロッド４０を装着する。この場合、操作ロッド４０の挿入部４１を、１対の昇降駆動機構３０のいずれか操作しやすい側の嵌挿穴３１ａ内に嵌入させる。なお、以上の動作は１対のパレットローダ１００について同様に行われる。 As shown in FIGS. 5A and 6A, when the pallet loader 100 is inserted into the lower part of the pallet G along the rail R formed on the floor surface F, and the pallet loader 100 is already installed. When the pallet G is loaded on the rail R, the pallet loader 100 does not come into contact with the pallet G because the load receiving member 20 is in the lowered position (normal position) and the upper surface 20a of the load receiving member 20 is lower than the floor surface F. Therefore, the pallet loader 100 can be smoothly inserted or pulled out. Next, the operation rod 40 is attached. In this case, the insertion portion 41 of the operation rod 40 is fitted into the insertion hole 31a on the side of the pair of elevating drive mechanisms 30 that is easy to operate. The above operation is similarly performed for the pair of pallet loaders 100.
　その後、１対のパレットローダ１００について、以下の動作が同時に行われる。まず、操作ロッド４０を後ろ側へ所定角度倒す操作を行い、クランク部材３１を回動させることで、昇降駆動機構３０が動作する。即ち、図５（Ｂ）及び図６（Ｂ）に示すように、リンク部材３２を介して台車１０が後方（引っ張る方向）に移動する。荷受部材２０は、台車１０が後方に移動すると共に昇降用ローラ２１が昇降用傾斜カム１２の傾斜面の上端まで上がることにより上方へ移動するので、パレットＧが床面Ｆより高い位置に持ち上げられる。 After that, the following operations are performed simultaneously for the pair of pallet loaders 100. First, the operation rod 40 is tilted backward by a predetermined angle, and the crank member 31 is rotated to operate the elevating drive mechanism 30. That is, as shown in FIGS. 5 (B) and 6 (B), the carriage 10 moves rearward (in the pulling direction) via the link member 32. The load receiving member 20 moves upward as the carriage 10 moves rearward and the elevating roller 21 rises to the upper end of the inclined surface of the elevating inclined cam 12, so that the pallet G is lifted to a position higher than the floor surface F. ..
　この状態で、１対の操作ロッド４０を手動で前方へ押す（又は、後方へ引っ張る）ことでパレットＧを所定位置まで移動する。パレットＧを所定位置に移動した後、操作ロッド４０を起こし、垂直状態に戻すように操作し、クランク部材３１を逆回転させることで、昇降駆動機構３０が動作し、リンク部材３２を介して台車１０が前方に移動する。台車１０の前方への移動と共に、昇降用ローラ２１が昇降用傾斜カム１２の傾斜面の上端から下端に下がることにより荷受部材２０が下方に移動するので、パレットＧが床面Ｆ上に降ろされる。この状態で、１対のパレットローダ１００をパレットＧの下方から引き出すことができる。 In this state, the pallet G is moved to a predetermined position by manually pushing (or pulling backward) the pair of operating rods 40 forward. After moving the pallet G to a predetermined position, the operation rod 40 is raised and operated to return it to the vertical state, and the crank member 31 is rotated in the reverse direction to operate the elevating drive mechanism 30 and the trolley via the link member 32. 10 moves forward. As the bogie 10 moves forward, the elevating roller 21 moves downward from the upper end to the lower end of the inclined surface of the elevating inclined cam 12, so that the load receiving member 20 moves downward, so that the pallet G is lowered onto the floor surface F. .. In this state, the pair of pallet loaders 100 can be pulled out from below the pallet G.
　以上説明したように、本実施形態におけるパレットローダ１００は、走行ローラ１１とＶ形の傾斜面を有する複数の昇降用傾斜カム１２とを有し、床面Ｆに形成された溝内に敷設されたレールＲに沿って走行可能な台車１０と、この台車１０上に載設され、内側に複数の昇降用傾斜カム１２の傾斜面に沿って移動可能な複数の昇降用ローラ２１を有する荷受部材２０と、台車１０の両端側にそれぞれ連結されて荷受部材２０を台車１０に対して昇降させる１対の昇降駆動機構３０と、操作ロッド４０とを備えている。ことにより、床にレール状溝を有する貨物専用車両や倉庫等の床面に置かれたパレットに積載された荷物に対して、例えば車両等の後方の開口部側でも、車両荷台の奥側でも操作ロッド４０を使っても荷物（パレットＧ）を荷台床の床面Ｆより持ち上げて、前へ押すことで移動させる作業ができる。荷物を外部に運び出す際に後向きで荷物を引っ張る作業をしなくても良い、より安全に作業を行うことができる。 As described above, the pallet loader 100 in the present embodiment has a traveling roller 11 and a plurality of elevating inclined cams 12 having a V-shaped inclined surface, and is laid in a groove formed on the floor surface F. A load receiving member having a bogie 10 that can travel along the rail R and a plurality of elevating rollers 21 that are mounted on the bogie 10 and that can move along the inclined surfaces of the plurality of elevating inclined cams 12 inside. 20 is provided with a pair of elevating drive mechanisms 30 connected to both ends of the trolley 10 to raise and lower the load receiving member 20 with respect to the trolley 10, and an operation rod 40. As a result, with respect to cargo loaded on a pallet placed on the floor of a cargo-only vehicle having a rail-shaped groove on the floor or a warehouse, for example, on the rear opening side of the vehicle or on the back side of the vehicle carrier. Even if the operation rod 40 is used, the luggage (pallet G) can be lifted from the floor surface F of the cargo bed floor and pushed forward to move the cargo (pallet G). You do not have to pull the luggage backwards when you carry it out, and you can work more safely.
　また、１対の昇降駆動機構３０の各々は、荷受部材２０の上面に設けられた開口部２２から露出する嵌挿穴３１ａを有し、外部からの力によって一端側の回動軸３３を中心に回動可能なクランク部材３１と、一端がクランク部材３１の他端に回動自在に連結され、他端が台車１０の端部に回動可能に連結されたリンク部材３２とを備え、クランク部材３１の回動軸３３の両端は、荷受部材２０の両側壁２０ｂに設けられた長手方向に延びる長孔２３に挿通され、かつ長孔２３に沿ってスライド可能に装着されていることで、構造が簡単で、かつ低コストで実現でき、昇降動作を容易に行うことができる。 Further, each of the pair of elevating drive mechanisms 30 has a fitting hole 31a exposed from an opening 22 provided on the upper surface of the load receiving member 20, and is centered on a rotation shaft 33 on one end side by an external force. Crank Both ends of the rotation shaft 33 of the member 31 are inserted into a long hole 23 extending in the longitudinal direction provided on both side walls 20b of the load receiving member 20, and are slidably mounted along the long hole 23. The structure is simple, it can be realized at low cost, and the elevating operation can be easily performed.
　なお、上述したパレットローダ１００において、台車１０には、複数の昇降用傾斜カム１２が設けられ、荷受部材２０には、複数の昇降用ローラ２１が設けられている構成例について説明したが、本発明はこれに限定されるものではない。例えば、逆に複数の昇降用傾斜カム１２を荷受部材２０に設けて、複数の昇降用ローラ２１を台車１０に設ける構成にしても良い。即ち、パレットローダは、底面と両側壁とからなるコ字形断面を有し、内側に複数の走行ローラと複数の昇降用ローラとが設けられ、荷台床の床面に形成された溝状のレールに沿って走行可能な台車と、上面と両側壁とからなるコ字形断面を有し、内側に複数の昇降用ローラが移動可能な逆Ｖ形の傾斜面を有する複数の昇降用傾斜カムが設けられ、複数の昇降用傾斜カムを介して台車に載設される荷受部材と、台車の両端側にそれぞれ連結されて荷受部材を台車に対して昇降させる１対の昇降駆動機構とを備えている。この場合、１対の昇降駆動機構は、上述した昇降駆動機構３０と同様な構成を有する。これにより、上述したパレットローダ１００と同様な効果を得られる。 In the above-mentioned pallet loader 100, a configuration example in which a plurality of elevating inclined cams 12 are provided on the carriage 10 and a plurality of elevating rollers 21 are provided on the load receiving member 20 has been described. The invention is not limited to this. For example, conversely, a plurality of elevating inclined cams 12 may be provided on the load receiving member 20, and a plurality of elevating rollers 21 may be provided on the carriage 10. That is, the pallet loader has a U-shaped cross section consisting of a bottom surface and both side walls, and a plurality of traveling rollers and a plurality of elevating rollers are provided inside, and a groove-shaped rail formed on the floor surface of the loading platform floor. A dolly that can travel along the trolley and a plurality of elevating inclined cams having a U-shaped cross section consisting of an upper surface and both side walls and an inverted V-shaped inclined surface on which a plurality of elevating rollers can move are provided. It is provided with a load receiving member mounted on the bogie via a plurality of tilting cams for raising and lowering, and a pair of raising and lowering drive mechanisms connected to both ends of the bogie to raise and lower the load receiving member with respect to the bogie. .. In this case, the pair of elevating drive mechanisms has the same configuration as the elevating drive mechanism 30 described above. As a result, the same effect as that of the pallet loader 100 described above can be obtained.
　また、上述したパレットローダ１００において、荷受部材２０の長孔２３の一端部の下辺には回動軸３３の少なくとも下半円部が嵌入可能な略半円形の凹部２３ａが形成されている例について説明したが、本発明はこれに限定されるものではない。例えば、凹部２３ａの形状がＶ形にしても良い。 Further, in the above-mentioned pallet loader 100, an example in which a substantially semicircular recess 23a into which at least the lower semicircular portion of the rotation shaft 33 can be fitted is formed on the lower side of one end of the elongated hole 23 of the load receiving member 20. As described above, the present invention is not limited to this. For example, the shape of the recess 23a may be V-shaped.
　図７は本発明のローダの第２の実施形態としてのパレットローダ１００Ａの外観構成を概略的に示している。図８はこのパレットローダ１００Ａの台車１０Ａの構成を示しており、同図（Ａ）は側面の部分断面図であり、（Ｂ）は上から見た図である。図９はパレットローダ１００Ａの荷受部材２０Ａの構成を示しており、同図（Ａ）は側面の部分断面図であり、（Ｂ）は下から見た図である。図１０はパレットＧを持ち上げる際の昇降駆動機構３０Ａの動作状態を詳細に示しており、同図（Ａ）は操作ロッド４０で操作される側の昇降駆動機構３０Ａの状態を示しており、（Ｂ）は操作されていない側の昇降駆動機構３０Ａの状態を示している。 FIG. 7 schematically shows the external configuration of the pallet loader 100A as the second embodiment of the loader of the present invention. FIG. 8 shows the configuration of the carriage 10A of the pallet loader 100A, FIG. 8A is a partial cross-sectional view of a side surface, and FIG. 8B is a view seen from above. 9A and 9B show the configuration of the load receiving member 20A of the pallet loader 100A, FIG. 9A is a partial cross-sectional view of a side surface, and FIG. 9B is a view seen from below. FIG. 10 shows in detail the operating state of the elevating drive mechanism 30A when lifting the pallet G, and FIG. 10A shows the state of the elevating drive mechanism 30A on the side operated by the operation rod 40. B) shows the state of the elevating drive mechanism 30A on the non-operated side.
　図７から図１０に示すように、本実施形態のパレットローダ１００Ａは、複数の走行ローラ１１とＶ形の傾斜面を有する複数の昇降用傾斜カム１２とを有し、床面Ｆに形成された溝内に敷設されたレールＲに沿って走行可能な台車１０Ａと、この台車１０Ａ上に載設され、内側に複数の昇降用傾斜カム１２の傾斜面に沿って移動可能な複数の昇降用ローラ２１を有する荷受部材２０Ａと、台車１０Ａの両端側にそれぞれ連結されて荷受部材２０Ａを台車１０Ａに対して昇降させる１対の昇降駆動機構３０Ａと、操作ロッド４０とを備えている。 As shown in FIGS. 7 to 10, the pallet loader 100A of the present embodiment has a plurality of traveling rollers 11 and a plurality of elevating inclined cams 12 having a V-shaped inclined surface, and is formed on the floor surface F. A bogie 10A that can travel along the rail R laid in the groove, and a plurality of elevating cams that are mounted on the bogie 10A and can move along the inclined surfaces of the plurality of elevating inclined cams 12 inside. It includes a load receiving member 20A having a roller 21, a pair of lifting drive mechanisms 30A connected to both ends of the carriage 10A to raise and lower the load receiving member 20A with respect to the carriage 10A, and an operation rod 40.
　台車１０Ａは、図８に示すように、ステンレス板を板金加工することにより形成され、底面１０ａと両側壁１０ｂとからなるコ字形断面を有するものである。台車１０Ａは、その両端側に連結された１対の昇降駆動機構３０Ａの構成を除いて、上述した第１の実施形態の台車１０と同様な構成を有している。このため、同様な構成部分の詳細な説明は省略する。 As shown in FIG. 8, the dolly 10A is formed by sheet metal processing of a stainless steel plate, and has a U-shaped cross section including a bottom surface 10a and both side walls 10b. The bogie 10A has the same configuration as the bogie 10 of the first embodiment described above, except for the configuration of a pair of elevating drive mechanisms 30A connected to both ends thereof. Therefore, detailed description of similar components will be omitted.
　荷受部材２０Ａは、図９に示すように、ステンレス板を板金加工することにより形成され、上面２０ａと両側壁２０ｂとからなるコ字形断面を有するものである。荷受部材２０Ａの両側壁２０ｂの両端側に１対の軸穴２３Ａがそれぞれ設けられている。この１対の軸穴２３Ａにはクランク部材３１Ａの回動軸３３の両端がそれぞれ挿通されている。 As shown in FIG. 9, the consignment member 20A is formed by sheet metal processing of a stainless steel plate, and has a U-shaped cross section including an upper surface 20a and both side walls 20b. A pair of shaft holes 23A are provided on both end sides of both side walls 20b of the load receiving member 20A. Both ends of the rotation shaft 33 of the crank member 31A are inserted into the pair of shaft holes 23A.
　１対の昇降駆動機構３０Ａは、荷受部材２０Ａの上面２０ａに設けられた開口部２２から露出する嵌挿穴３１ａを有し、外部からの力（操作ロッド４０の操作）によって一端側の回動軸３３を中心に回動可能なクランク部材３１Ａと、一端がクランク部材３１Ａの他端に連結軸３５を介して回動自在に連結され、他端が連結軸３４を介して台車１０Ａの両側壁１０ｂに連結されたリンク部材３２Ａとを備えている。回動軸３３の両端は、荷受部材２０Ａの両側壁２０ｂに設けられた１対の軸穴２３Ａにそれぞれ挿通され、装着されている。 The pair of elevating drive mechanism 30A has a fitting hole 31a exposed from an opening 22 provided in the upper surface 20a of the load receiving member 20A, and is rotated on one end side by an external force (operation of the operation rod 40). A crank member 31A that can rotate around a shaft 33, one end of which is rotatably connected to the other end of the crank member 31A via a connecting shaft 35, and the other end of which is rotatably connected to the other ends of the bogie 10A via a connecting shaft 34. It includes a link member 32A connected to 10b. Both ends of the rotating shaft 33 are inserted into and mounted on a pair of shaft holes 23A provided on both side walls 20b of the load receiving member 20A.
　図１０に示すように、クランク部材３１Ａは、嵌挿穴３１ａが設けられた上部部材３１Ａ１と、この上部部材３１Ａ１を支持する下部部材３１Ａ２と、上部部材３１Ａ１と下部部材３１Ａ２とを、リンク部材３２Ａが連結される側において回動自在に係合する係合回動軸３６Ａとから構成され、上部部材３１Ａ１及び下部部材３１Ａ２の自由端側には、それぞれ回動軸３３の上半円部と下半円部が嵌入可能な凹部３１ｂ及び３１ｃが形成されている。また、下部部材３１Ａ２にも嵌挿穴３１ａが設けられおり、操作ロッド４０の挿入部４１が下部部材３１Ａ２の嵌挿穴３１ａ内に嵌入可能である。このような構成により、操作ロッド４０で一端側の昇降駆動機構３０Ａの引き起こし操作を行う際に、上部部材３１Ａ１及び下部部材３１Ａ２の凹部３１ｂ及び３１ｃが回動軸３３の上半円部及び下半円部に嵌合し、クランク部材３１Ａが回動軸３３を中心に回動することで、台車１０Ａを後方へ移動させることができる（図１０（Ａ）参照）。一方、操作されていない側のクランク部材３１Ａが台車１０Ａの移動と共に引っ張られて回動軸３３がこれらの凹部３１ｂ及び３１ｃか離脱するように構成されている（図１０（Ｂ）参照）。これにより、台車１０Ａが操作される側に引っ張られると共に、荷受部材２０Ａが上昇するようになり、パレットＧが床面Ｆより高い位置に持ち上げられる。この場合、荷受部材２０Ａを上昇させる際に、クランク部材３１Ａが回動軸３３に確実に軸着されるため、引き起こし操作途中でパレットＧを落下することがなく、確実に持ち上げることができる。 As shown in FIG. 10, the crank member 31A includes an upper member 31A 1 which are insertion hole 31a is provided, the lower member 31A 2 for supporting the upper member 31A 1, an upper member 31A 1 and the lower member 31A 2 Is composed of an engaging rotation shaft 36A that rotatably engages on the side to which the link member 32A is connected, and a rotation shaft 33 is provided on the free end side of the upper member 31A 1 and the lower member 31A 2, respectively. Recessions 31b and 31c into which the upper semicircle and the lower semicircle can be fitted are formed. Further, the lower member 31A 2 is also provided with an insertion hole 31a, and the insertion portion 41 of the operation rod 40 can be fitted into the insertion hole 31a of the lower member 31A 2. With such a configuration, when the operation rod 40 raises and operates the elevating drive mechanism 30A on one end side, the recesses 31b and 31c of the upper member 31A 1 and the lower member 31A 2 form the upper semicircle portion of the rotation shaft 33 and the lower half circle. The bogie 10A can be moved rearward by fitting the lower semicircle portion and rotating the crank member 31A around the rotation shaft 33 (see FIG. 10A). On the other hand, the crank member 31A on the non-operated side is pulled with the movement of the carriage 10A, and the rotating shaft 33 is configured to separate from these recesses 31b and 31c (see FIG. 10B). As a result, the carriage 10A is pulled toward the operated side, the load receiving member 20A rises, and the pallet G is lifted to a position higher than the floor surface F. In this case, when the load receiving member 20A is raised, the crank member 31A is securely pivotally attached to the rotating shaft 33, so that the pallet G can be reliably lifted without dropping during the raising operation.
　以上説明したように、本実施形態におけるパレットローダ１００Ａは、台車１０Ａと、荷受部材２０Ａと、１対の昇降駆動機構３０Ａと、操作ロッド４０とを備えている。昇降駆動機構３０Ａは、クランク部材３１Ａと、リンク部材３２Ａとを備え、クランク部材３１Ａの回動軸３３の両端は、荷受部材２０Ａの両側壁２０ｂに設けられた軸穴２３Ａに挿通され、装着されている。また、クランク部材３１Ａは、上部部材３１Ａ１と、下部部材３１Ａ２と、係合回動軸３６Ａとから構成され、上部部材３１Ａ１及び下部部材３１Ａ２の自由端側には、それぞれ回動軸３３の上半円部と下半円部が嵌入可能な凹部３１ｂ及び３１ｃが形成されている。ことにより、床にレール状溝を有する貨物専用車両や倉庫等の床面に置かれたパレットに積載された荷物に対して、例えば車両等の後方の開口部側でも、車両荷台の奥側でも操作ロッド４０を使っても荷物（パレットＧ）を荷台床の床面Ｆより持ち上げて、前へ押すことで移動させる作業ができる。荷物を外部に運び出す際に後向きで荷物を引っ張る作業をしなくても良い、より安全に作業を行うことができる。また、構造が簡単で、かつ低コストで実現でき、昇降動作を容易、かつ確実に行うことができる。 As described above, the pallet loader 100A in the present embodiment includes a carriage 10A, a load receiving member 20A, a pair of elevating drive mechanism 30A, and an operation rod 40. The elevating drive mechanism 30A includes a crank member 31A and a link member 32A, and both ends of the rotation shaft 33 of the crank member 31A are inserted into and mounted on shaft holes 23A provided on both side walls 20b of the load receiving member 20A. ing. Further, the crank member 31A is composed of an upper member 31A 1 , a lower member 31A 2, and an engaging rotation shaft 36A, and a rotation shaft is provided on the free end side of the upper member 31A 1 and the lower member 31A 2, respectively. Recessions 31b and 31c into which the upper semicircle and the lower semicircle of 33 can be fitted are formed. As a result, with respect to cargo loaded on a pallet placed on the floor of a cargo-only vehicle having a rail-shaped groove on the floor or a warehouse, for example, on the rear opening side of the vehicle or on the back side of the vehicle carrier. Even if the operation rod 40 is used, the luggage (pallet G) can be lifted from the floor surface F of the cargo bed floor and pushed forward to move the cargo (pallet G). You do not have to pull the luggage backwards when you carry it out, and you can work more safely. In addition, the structure is simple and can be realized at low cost, and the ascending / descending operation can be easily and surely performed.
　なお、上述したパレットローダ１００Ａにおいて、台車１０Ａには、複数の昇降用傾斜カム１２が設けられ、荷受部材２０Ａには、複数の昇降用ローラ２１が設けられている構成例について説明したが、本発明はこれに限定されるものではない。例えば、逆に複数の昇降用傾斜カム１２を荷受部材２０Ａに設けて、複数の昇降用ローラ２１を台車１０Ａに設ける構成にしても良い。 In the above-mentioned pallet loader 100A, a configuration example in which a plurality of elevating tilting cams 12 are provided on the carriage 10A and a plurality of elevating rollers 21 are provided on the load receiving member 20A has been described. The invention is not limited to this. For example, conversely, a plurality of elevating inclined cams 12 may be provided on the load receiving member 20A, and a plurality of elevating rollers 21 may be provided on the carriage 10A.
　以上述べた実施形態は全て本発明を例示的に示すものであって限定的に示すものではなく、本発明は他の種々の変形態様及び変更態様で実施することができる。従って本発明の範囲は特許請求の範囲及びその均等範囲によってのみ規定されるものである。 All of the above-described embodiments are illustrative and not limited to the present invention, and the present invention can be carried out in various other modifications and modifications. Therefore, the scope of the present invention is defined only by the scope of claims and the equivalent scope thereof.
　本発明は、床にレール状溝を有する貨物専用車両や倉庫等の床面に置かれた荷物、例えばパレットに積載された荷物を移動する目的に利用できる。 The present invention can be used for the purpose of moving cargo placed on the floor of a cargo-only vehicle having a rail-shaped groove on the floor or a warehouse, for example, luggage loaded on a pallet.
　１０、１０Ａ　台車
　１０ａ　底面
　１０ｂ　側壁
　１０ｃ　開口部
　１１　走行ローラ
　１１ａ　軸
　１２　昇降用傾斜カム
　２０、２０Ａ　荷受部材
　２０ａ　上面
　２０ｂ　側壁
　２１　昇降用ローラ
　２２　開口部
　２３　長孔
　２３Ａ　軸穴
　２３ａ、３１ｂ、３１ｃ　凹部
　３０、３０Ａ　昇降駆動機構
　３１、３１Ａ　クランク部材
　３１Ａ１　上部部材
　３１Ａ２　下部部材
　３１ａ　嵌挿穴
　３２、３２Ａ　リンク部材
　３３　回動軸
　３４、３５　連結軸
　３６Ａ　係合回動軸
　４０　操作ロッド
　４１　挿入部
　１００、１００Ａ　パレットローダ（ローダ）
　Ｆ　床面
　Ｇ　パレット
　Ｒ　レール
 
 
  10, 10A trolley 10a bottom surface 10b side wall 10c opening 11 traveling roller 11a shaft 12 elevating tilt cam 20, 20A load receiving member 20a top surface 20b side wall 21 elevating roller 22 opening 23 long hole 23A shaft hole 23a, 31b, 31c recess 30 , 30A Lifting drive mechanism 31, 31A Crank member 31A 1 Upper member 31A 2 Lower member 31a Fitting insertion hole 32, 32A Link member 33 Rotating shaft 34, 35 Connecting shaft 36A Engaging rotating shaft 40 Operation rod 41 Insertion part 100, 100A pallet loader (loader)
F Floor G Pallet R Rail

Claims (7)

  1. 　底面と両側壁とからなるコ字形断面を有し、内側に複数の走行ローラとＶ形の傾斜面を有する複数の昇降用傾斜カムとが設けられ、荷台床の床面に形成された溝状のレールに沿って走行可能な台車と、
    　上面と両側壁とからなるコ字形断面を有し、内側に前記複数の昇降用傾斜カムの傾斜面に沿って移動可能な複数の昇降用ローラが設けられ、前記複数の昇降用ローラを介して前記台車に載設される荷受部材と、
    　前記台車の両端側にそれぞれ連結されて前記荷受部材を前記台車に対して昇降させる１対の昇降駆動機構とを備えていることを特徴とするローダ。     It has a U-shaped cross section consisting of a bottom surface and both side walls, and is provided with a plurality of traveling rollers and a plurality of elevating inclined cams having a V-shaped inclined surface inside, and has a groove shape formed on the floor surface of the loading platform. A dolly that can run along the rails of
    A plurality of elevating rollers having a U-shaped cross section including an upper surface and both side walls and being movable along the inclined surfaces of the plurality of elevating inclined cams are provided inside, via the plurality of elevating rollers. The consignment member mounted on the trolley and
    A loader including a pair of elevating drive mechanisms that are connected to both ends of the trolley and raise and lower the load receiving member with respect to the trolley.
  2. 　底面と両側壁とからなるコ字形断面を有し、内側に複数の走行ローラと複数の昇降用ローラとが設けられ、荷台床の床面に形成された溝状のレールに沿って走行可能な台車と、
    　上面と両側壁とからなるコ字形断面を有し、内側に前記複数の昇降用ローラが当接し移動可能な逆Ｖ形の傾斜面を有する複数の昇降用傾斜カムが設けられ、前記複数の昇降用傾斜カムを介して前記台車に載設される荷受部材と、
    　前記台車の両端側にそれぞれ連結されて前記荷受部材を前記台車に対して昇降させる１対の昇降駆動機構とを備えていることを特徴とするローダ。     It has a U-shaped cross section consisting of a bottom surface and both side walls, and is provided with a plurality of traveling rollers and a plurality of elevating rollers on the inside, and can travel along a groove-shaped rail formed on the floor surface of the loading platform. With a dolly
    A plurality of elevating tilting cams having a U-shaped cross section including an upper surface and both side walls and having an inverted V-shaped inclined surface on which the plurality of elevating rollers abut and move are provided, and the plurality of elevating / lowering cams are provided. A load receiving member mounted on the bogie via an inclined cam for
    A loader including a pair of elevating drive mechanisms that are connected to both ends of the trolley and raise and lower the load receiving member with respect to the trolley.
  3. 　前記１対の昇降駆動機構の各々は、前記荷受部材の上面に設けられた開口から露出する嵌挿穴を有し、外部からの力によって一端側の回動軸を中心に回動可能なクランク部材と、一端が前記クランク部材の他端に回動自在に連結され、他端が前記台車の端部に回動可能に連結されたリンク部材とを備え、
    　前記クランク部材の前記回動軸の両端は、前記荷受部材の両側壁に設けられた長手方向に延びる長孔に挿通され、かつ該長孔に沿ってスライド可能に装着されていることを特徴とする請求項１又は２に記載のローダ。     Each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and a crank that can rotate around a rotation shaft on one end side by an external force. A member and a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the bogie.
    Both ends of the rotation shaft of the crank member are inserted into elongated holes extending in the longitudinal direction provided on both side walls of the load receiving member, and are slidably mounted along the elongated holes. The loader according to claim 1 or 2.
  4. 　挿入部が前記昇降駆動機構の前記嵌挿穴に嵌接可能な操作ロッドをさらに備えており、該操作ロッドは前記挿入部が前記嵌挿穴に嵌接された状態で後方へ引っ張られることにより前記クランク部材を回動させると共に、前記台車を後方へ移動させ、前記荷受部材を上昇させるように構成されていることを特徴とする請求項３に記載のローダ。 The insertion portion further includes an operation rod that can be fitted into the insertion hole of the elevating drive mechanism, and the operation rod is pulled backward with the insertion portion fitted into the insertion hole. The loader according to claim 3, wherein the loader is configured to rotate the crank member, move the carriage to the rear, and raise the consignment member.
  5. 　前記長孔の一端部の下辺には前記回動軸の少なくとも下半円部が嵌入可能な凹部が形成されていることを特徴とすることを特徴とする請求項３及び４に記載のローダ。 The loader according to claim 3 and 4, wherein a recess into which at least a lower semicircle of the rotation shaft can be fitted is formed on the lower side of one end of the elongated hole.
  6. 　前記１対の昇降駆動機構の各々は、前記荷受部材の上面に設けられた開口から露出する嵌挿穴を有し、外部からの力によって一端側の回動軸を中心に回動可能なクランク部材と、一端が前記クランク部材の他端に回動自在に連結され、他端が前記台車の端部に回動可能に連結されたリンク部材とを備え、
    　前記クランク部材は、前記嵌挿穴が設けられた上部部材と、該上部部材を支持する下部部材と、前記上部部材と前記下部部材とを、前記リンク部材が連結される側において回動自在に係合する係合回動軸とから構成され、前記上部部材及び前記下部部材の自由端側には、それぞれ前記回動軸の上半円部と下半円部が嵌入可能な凹部が形成されていることを特徴とすることを特徴とする請求項１又は２に記載のローダ。     Each of the pair of elevating drive mechanisms has a fitting hole exposed from an opening provided on the upper surface of the load receiving member, and a crank that can rotate around a rotation shaft on one end side by an external force. A member and a link member having one end rotatably connected to the other end of the crank member and the other end rotatably connected to the end of the bogie.
    The crank member is such that the upper member provided with the fitting hole, the lower member supporting the upper member, and the upper member and the lower member are rotatable on the side where the link member is connected. It is composed of an engaging rotation shaft to be engaged, and recesses into which the upper semicircle and the lower semicircle of the rotation shaft can be fitted are formed on the free end side of the upper member and the lower member, respectively. The loader according to claim 1 or 2, wherein the loader is characterized by being
  7. 　挿入部が前記昇降駆動機構の前記嵌挿穴に嵌接可能な操作ロッドをさらに備えており、該操作ロッドは前記挿入部が前記嵌挿穴に嵌接された状態で後方へ引っ張られることにより前記クランク部材を回動させると共に、前記台車を後方へ移動させ、前記荷受部材を上昇させるように構成されていることを特徴とする請求項６に記載のローダ。 The insertion portion further includes an operation rod that can be fitted into the insertion hole of the elevating drive mechanism, and the operation rod is pulled backward with the insertion portion fitted into the insertion hole. The loader according to claim 6, wherein the loader is configured to rotate the crank member and move the carriage to the rear to raise the load receiving member.
PCT/JP2021/022567 2020-06-17 2021-06-14 Loader WO2021256435A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003306070A (en) * 2002-04-12 2003-10-28 Techno Hagihara:Kk Cargo transportation trolley
JP2005132594A (en) * 2003-10-31 2005-05-26 Tazm Technology Kk Loader
JP2015098382A (en) * 2013-11-19 2015-05-28 芦森工業株式会社 On-floor cargo transportation device
JP2016008096A (en) * 2014-06-23 2016-01-18 株式会社プレトライアル loader
JP2016196362A (en) * 2015-04-06 2016-11-24 有限会社矢島製作所 loader
WO2018234216A1 (en) * 2017-06-21 2018-12-27 Swisslog-Accalon Ab A transport cart of a storage and retrieval system and a lifting arrangement for such a transport cart

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003306070A (en) * 2002-04-12 2003-10-28 Techno Hagihara:Kk Cargo transportation trolley
JP2005132594A (en) * 2003-10-31 2005-05-26 Tazm Technology Kk Loader
JP2015098382A (en) * 2013-11-19 2015-05-28 芦森工業株式会社 On-floor cargo transportation device
JP2016008096A (en) * 2014-06-23 2016-01-18 株式会社プレトライアル loader
JP2016196362A (en) * 2015-04-06 2016-11-24 有限会社矢島製作所 loader
WO2018234216A1 (en) * 2017-06-21 2018-12-27 Swisslog-Accalon Ab A transport cart of a storage and retrieval system and a lifting arrangement for such a transport cart

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