JP5207597B2 - Rail device for loader - Google Patents

Description

  The present invention relates to a rail device for a loader that is installed and used in a floor of a cargo compartment, a warehouse or the like of a cargo vehicle.

A loader that transports cargo (luggage) loaded on a freight vehicle or the like can travel in a traveling groove of a rail device for a loader provided on the floor, and lifts the load receiving portion of the loader from the floor when transporting the cargo. It is lowered after transportation, and removed from the running groove when not in use.
As a conventional example 1, for example, a loader rail device disclosed in Japanese Patent Application Laid-Open No. 2005-132594 is constituted by a groove-shaped rail 126 provided in a cargo bed floor 125 of a vehicle or the like as shown in FIG. ing. The loader body includes a roller frame 104 positioned on the lower side, a loader base 105 positioned on the upper side, and a base guide 106 disposed between the roller frame and the loader base. The roller frame 104 is formed by a channel member having side plates 104a1 and 104a2 on both sides, and a plurality of rollers 107 are arranged inside the roller frame 104 at intervals in the length direction. Each roller 107 is attached to a roller shaft 108 supported by the side plates 104a1 and 104a2 with this as the center of rotation. Each roller 107 is exposed below the opening at the bottom of the roller frame 104 and can run on the inner bottom surface of the rail 126. The loader can travel in the rail 126 with its loader body loaded on its upper surface and move to the load storage position. The loader includes an actuating device having an actuating body on the rear end side of the loader body, and an operation rod for actuating the actuating body (in FIG. 14 of the publication, the actuating body, the actuating device, and the operating rod are denoted by reference numerals "12", "2" and "3" are attached respectively).
The loader base 105 and the base guide 106 in the loader body can be moved up and down while moving through the operating device by operating the operation rod, and the load receiving portion 105a of the loader base 105 is loaded with the loading platform floor 125 along with the lifting and lowering operation. The baggage can be loaded or unloaded at a higher or lower position. When the loader is not used, it is taken out from the rail 126 and stored in a storage place provided in the vehicle.
As a conventional example 2, the loader rail device disclosed in Japanese Patent Application Laid-Open No. 2001-106488 is also provided with a groove provided in a load carrier floor of a vehicle or the like as shown in FIG. The loader travels in the rail while loading a load on the upper surface and transports it to a predetermined position. The structure of the loader and the method of using the loader are substantially the same as those of Conventional Example 1. As shown in FIGS. 6 and 7 of the publication, the loader is detachable from a loader body having a base body and a carrier body, guide means for guiding the lifting operation of the carrier body, and one end of the loader body. Actuator is provided.
As conventional example 3, the rail device for loader disclosed in Japanese Patent Application Laid-Open No. 2002-347505 is composed of a groove-type rail provided on the floor of the cargo bed as shown in FIGS. 4 and 5 of the publication. The floor cargo carrying device is fitted into the grooved rail. This on-floor cargo carrying device includes a main body frame having a loading platform that can run back and forth in a grooved rail provided on a floor surface, a roller plate that rotatably supports a plurality of running rollers, and a main body with respect to the roller plate. A link element that enables the frame to move in the front-rear direction, and an elevating mechanism that raises or lowers the main body frame with respect to the roller plate in accordance with the back-and-forth movement of the main body frame. In order to carry the cargo into the loading platform, the operation lever is operated to pull from the rear side to the front side. By this operation, the main body frame rises with respect to the roller plate, and the cargo and pallet are loaded on the loading base of the main body frame. When the cargo is pushed from the rear side to the front side from this state, the cargo on the floor is transported. The entire cargo loaded on the apparatus is transported in the rail toward the front end of the truck bed by the rolling of the traveling roller. In order to lower the cargo to the loading platform, the main body frame is lowered by lifting the operation lever so as to push it from the front side to the rear side, and the cargo is loaded on the floor surface together with the pallet. It is presumed that when the floor cargo carrying device is not used, it is taken out from the grooved rail and stored in a storage place provided on the truck.
JP 2005-132594 A JP 2001-106488 A JP 2002-347505 A

In Conventional Example 1, Conventional Example 2, and Conventional Example 3, the rail provided in the floor on which the loader (“Freight Carrying Device” in Conventional Example 3) travels is a load receiving part (Conventional Example 2) In the conventional example 3, an opening is formed in the floor surface so that the “loading body” and “the loading frame of the main body frame” in the conventional example 3) can protrude above the floor surface. As a result, when the loader is not used, the loader is removed from the rail, and the opening remains open on the floor surface.Therefore, dust or the like enters from the opening, and the floor surface becomes uneven due to the opening. As a result, there is an inconvenience that the worker's walking and the carriage travel.
Of course, it is conceivable to flatten the floor by covering the opening of the rail with a cover plate. However, it is necessary to remove the cover plate from the opening when carrying luggage, but it is necessary to carry the removed cover plate to another place for storage. If the floor is deep and the depth of the floor is long, it is necessary to divide the cover plate into a plurality of parts. In such a case, it takes more time to handle the cover, and the floor is flattened. Make it more complicated.
An object of the present invention is to simplify a floor flattening operation.

The first feature of the present invention is that it includes a rail outer frame and a rail body, both of which are formed in a groove shape, and a cover portion . The rail outer frame is attached to the floor with the upper side open, and a receiving portion is provided at the center in the width direction on the inner surface of the bottom portion, and a locking portion having the same height as the receiving portion is provided on both sides thereof. It protrudes over the entire length, and is provided with a locking projection on the top surface of each locking part, and the rail body is formed by a bottom part and side walls located on both sides of the bottom part, a receiving space of the loader whose interior can up and down direction, the loader along the bottom on the inner surface in the longitudinal direction are possible travel by providing a groove-like engaging recess on both sides of the outer surface of the bottom Yes, the rail body is housed in the rail outer frame and can be detached from the opening of the rail outer frame, and the bottom of the rail body can cover the opening at the position of the opening end. der is, the cover portion is elastically deformable member It is attached to both side edges of the opening end of the rail outer frame in a horizontal and cantilever state, and the horizontal portion covers the gap between the inner side of the rail outer frame and the outer side of the rail body. , Forming the same plane as the floor surface of the floor, the tip is in contact with the side surface of the rail body, the rail body is stored in the rail outer frame, the bottom surface is the receiving portion and Each of the engaging recesses is engaged with the engaging protrusion of each of the engaging portions, and the rail body covers the opening of the rail outer frame by its bottom. In this state, the end surfaces of the both side walls are placed on the respective locking portions, and the positional deviation in the width direction of the both side walls is restricted by the locking projections, and the bottom surface of the bottom portion is Form the same plane as the floor of the floor and Storage space that has become a storage space for the loader.
The second feature of the present invention is based on the first feature described above, and the locking portions arranged on both sides of the receiving portion are each a pair, and the pair of locking portions are positioned on the rail outer frame side. The latching protrusion of the latching part is arranged on the receiving part side .
A third feature of the present invention is based on the premise of the first or second feature, wherein the rail body has a groove-shaped reinforcing rail portion disposed on the inner bottom side thereof, and the reinforcing rail portion is formed on the rail body. The rail body portion is in contact with the inner surface of the bottom portion facing the opening, and the reinforcing portion is raised from both sides of the rail body portion and is in contact with the inner surfaces of both side walls of the rail body.
A fourth feature of the present invention is based on the first, second, or third feature described above, and is that the reinforcing portion projects from the inner surfaces of both side walls of the rail body toward the storage space.

In this invention, through the operation of turning the rail body upside down, when the loader is used, the rail outer frame can be opened and used as a dedicated rail, and when the loader is not used, the opening of the rail outer frame is closed to flatten the floor surface. Therefore, the work for flattening the floor is not time-consuming and the work can be speeded up.
In the present invention, since the loader can be stored in the rail body when the loader is not used, it is not necessary to provide a special loader storage location, and the installation cost can be reduced accordingly.
In this invention, by providing the cover portion, it is possible to prevent intrusion of dust or the like into the gap between the rail outer frame and the rail body.
In the present invention, by providing the reinforcing rail portion, it is possible to reduce the weight of the apparatus and contribute to the weight reduction of the entire floor.

The loader rail device of the present invention will be described with reference to the drawings.
1 to 4 and 9, the loader rail device 1 includes a rail outer frame 2, a rail body 3, and a cover portion 4, and the loader 100 can be stored in the rail body 3. You can travel.
Since the loader 100 shown in FIGS. 1 and 2 is not substantially different from the structure of the loader of the first conventional example shown in FIG. 13, the reference numerals used for the description of the loader are used as they are.

The rail outer frame 2 will be described with reference to FIGS.
The rail outer frame 2 is formed of a groove-shaped aluminum material whose upper end portion is an opening 2a. The rail outer frame 2 is installed in the floor 7 with the opening 2a facing upward, and has a flange portion 2e projecting outside the upper ends of both side walls 2b. The rail outer frame 2 is fixed on the floor surface 7a via the flange 2e.
As shown in FIGS. 3 and 4, the inner surface of the bottom portion 2c of the rail outer frame 2 has a receiving portion 2c1 at the center portion and a pair of locking portions 2c2 and 2c3 having the same height as the receiving portion on both sides thereof. It protrudes over its entire length. Locking protrusions 2c21 and 2c31 are provided on the upper surfaces of the locking portions 2c2 and 2c3. A mounting groove 2f for mounting the cover portion 4 is provided oppositely on the inner side of the upper opening 2a end of the rail outer frame 2.

The rail body 3 will be described with reference to FIGS.
As shown in FIGS. 1 to 4 and 9, the rail body 3 is formed in a groove shape with an aluminum material. The rail body 3 is provided with a storage space 3d in which the loader 100 can run in the longitudinal direction (perpendicular to the paper surface of FIG. 1) and can be moved up and down in the vertical direction. The rail body 3 is provided with a pair of groove-like engaging recesses 3c1 and 3c2 over the entire length on both sides of the outer surface (the lower surface in FIG. 3) of the bottom 3c.
A reinforcing rail portion 5 on which the loader 100 can travel is disposed and fixed inside the lower side of the rail body 3. The reinforcing rail portion 5 is made of a groove-shaped stainless steel material. The reinforcing rail portion 5 includes a rail body portion 5a that is in contact with the inner surface of the bottom portion 3c of the rail body 3, and a reinforcing portion 5b that rises from both sides of the rail body portion and is in contact with the inner surfaces of both side walls 3b of the rail body. Consists of. According to the example shown in FIG. 3, both the reinforcing portions 5 b are extended to a position approximately in the middle of the height of the both side walls 3 b of the rail body 3, and the inner surfaces of the reinforcing portions 5 b protrude inward from the inner surfaces of the side walls 3 b. . The reason for the overhang is to prevent the side walls of the rail body 3 from coming into contact with the side walls 3b of the rail body 3 even when the side walls of the loader base 105 may come into contact with the reinforcing portion 5b when the loader 100 is running. It is to do.

The relationship between the rail outer frame 2 and the rail body 3 will be described.
The rail body 3 is housed in a housing space 2d in the rail outer frame 2 as shown in FIGS. 3, 4, and 9, and can be detached from the opening 2a of the rail outer frame.
When the rail body 3 is used as a dedicated rail as shown in FIGS. 1 and 3 to 8, the rail body is stored in the rail outer frame 2 with the bottom 3c facing downward and the opening 3a facing upward. Has been. Therefore, as shown in FIG. 1, rail grooves are formed on the floor surface 7 a by the openings 3 a of the rail body 3. At this time, the bottom 2c of the rail outer frame 2 and the bottom 3c of the rail body 3 are overlapped with each other, and the engaging recesses 3c1, 3c2 of the rail body are locked to the locking protrusions 2c21, 2c21 of the locking portions 2c2, 2c3 of the rail outer frame. Since the rail body is engaged with 2c31, the rail body is maintained in a stable storage state.
When the rail body 3 is used as a cover as shown in FIGS. 1 and 9 to 12, the rail body is turned over (reversed) from the state shown in FIG. It is stored in the rail outer frame 2 in the state shown. In the state of FIG. 2, the bottom 3c of the rail body 3 covers this opening at the end of the opening 2a of the rail outer frame 2, that is, the rail body closes the opening 2a of the rail outer frame at the bottom. Yes. In the closed state, as shown in FIG. 2, the upper surface of the bottom 3c of the rail body 3 forms the same plane as the floor surface 7a, and the floor surface is flattened.

The cover part 4 is demonstrated.
The cover part 4 is attached to both side edges of the opening 2a of the rail outer frame 2 as shown in FIGS. As shown in FIG. 4, the cover portion 4 is formed of a belt-like body having an L-shaped cross section made of an elastically deformable member. The vertical part of the cover part 4 is press-fitted into a mounting groove 2f provided on the side wall 2b of the opening part 2a of the rail outer frame 2, and the horizontal part protrudes inward of the opening part. As shown in FIGS. 1 and 2, both cover parts 4 cover a gap 6 between the inside of the rail outer frame 2 and the outside of the rail body 3.
The gap 6 prevents the opening 2a of the rail outer frame 2 from becoming narrower as the floor 7 expands, so that the rail body 3 cannot be detached upward from the opening 2a and cannot travel in the front-rear direction. However, there is a risk that dust or the like may enter the gap. The cover part 4 has a role of preventing dust and the like from entering.

The loader 100 will be described.
As described above, the loader 100 is substantially the same as the loader of Conventional Example 1 shown in FIG. However, the upper surface of the operating device on the rear end side (not shown) of the loader 100 is set at the same level as the upper surface of the load receiving portion 105a of the loader base 105 shown in FIG. 2, and the rear end side of the loader including the operating device is the rail. It is designed to be stored in the storage space 3d of the main body 3.

The mutual relationship of the loader rail device 1, the floor 7, and the loader 100 will be described.
As shown in FIG. 8, the loader rail device 1 is arranged in the floor 7 at intervals in the horizontal direction of the drawing, and two units in the vertical direction (depth direction) are continuous in the illustrated example.
In order to clarify the positional relationship of the loader rail device 1, the loader rail device on the front side (lower side) of FIG. 8 is denoted by “1A1” and the loader on the depth direction side (upper side) as necessary. The rail device for the vehicle is denoted by reference numeral “1A2”.
In the state shown in FIG. 1 in which the rail main body 3 of the loader rail device 1 is used as a dedicated rail, the loader 100 housed in the rail main body has a length on the inner surface of the reinforcing rail portion 5 via a roller 107. You can travel along the direction. In the loader 100, the load receiving part 105 a of the loader base can protrude upward from the floor surface 7 a of the floor 7 by raising the loader base 105 and the base guide 106.
In the state shown in FIG. 2 in which the rail body 3 is used as a cover, the opening 3a faces the bottom 2c of the rail outer frame 2, and the storage space 3d becomes a storage space for the loader 100. Can be stored. In the retracted state, as shown in FIG. 2, the upper surface of the bottom portion 3c of the rail body 3 forms the same plane as the floor surface 7a.

Next, the usage method will be described.
Explain how to use the baggage during loading.
At the time of loading a load, the rail body 3 is used as a dedicated rail as shown in FIG. That is, as shown in FIG. 1, the rail body 3 has a bottom portion 3c superimposed on the bottom portion 2c of the rail outer frame, and the rail outer frame engaging portions 3c1, 3c2 on the rail outer frame engaging portions 2c2, The locking projections 2c21 and 2c31 of 2c3 are engaged, and the loader 100 is disposed in the storage space 3d of the rail body 3. According to the example shown in FIG. 8, the loader 100 is disposed in the rail body 3 of the loader rail device 1A1 on the lower side of the figure. In this state, the roller 107 of the loader 100 can travel on the inner surface of the rail body portion 5 a of the reinforcing rail portion 5 of the rail body 3.
When the loader base 105 of the loader 100 is raised through an operating device and an elevating mechanism (not shown), the load receiving part 105a is also raised, eventually protruding from the floor surface 7a of the floor 7 and stopped rising at the position shown by the chain line in FIG. Wait for luggage to be brought in.
The usage method after discharging a load from the floor 7 will be described.
At the time of discharge, as shown in FIG. 1, in the loader rail device 1, the rail body 3 is in a state where it can be used as a dedicated rail.
First, the loader 100 closes the open state on the loader rail device 1A2 side because the loader 100 is positioned on the loader rail device 1A1 side and not on the loader rail device 1A2 side shown in FIG.
The closing operation is as follows. The rail body 3 is lifted outward from the opening 2a of the rail outer frame 2 to the position shown by the chain line in FIG. 3, turned over as it is, and brought into the state shown by the chain line in FIG. The storage space 3d of the rail body 3 becomes the storage space of the loader 100 when it is lowered into the space 2d and the end surfaces of both side walls 3b of the rail body are placed on the locking portion 2c3 of the bottom 2c of the rail outer frame.
Thereafter, the loader base 105 of the loader 100 is lowered from the position of the chain line in FIG. 1 to the position of the solid line to lower the level of the load receiving portion 105a into the storage space 3d of the rail body 3, and then toward the loader rail device 1A1 side. The loader 100 shown by the chain line in FIG. 8 is moved to the loader rail device 1A2 side and stored in the storage space 3d of the rail body 3.
Next, after the loader 100 is not in the rail main body 3 of the rail device for loader 1A1, the rail main body 3 shown in FIG. The state shown in FIG.
As a result, as shown in FIG. 2, the loader 100 is stored in the storage space 3d of the rail body 3, and in this state, the bottom 3c of the rail body 3 closes the opening 2a of the rail outer frame 2, The rail body 3 functions as a cover. In the state in which the rail body 3 covers the opening 2a, the upper surface of the bottom 3c forms the same plane as the floor surface 7a of the floor 7, so that the floor surface 7a is flat over the entire surface, such as walking of an operator. Will not cause any problems.
Thus, according to the purpose of use of the rail body 3, the rail body can be switched from the dedicated rail to the cover or vice versa by taking out the rail body 2 and inverting it.

The loader rail device 1 shown in the figure has the following effects.
By simply inverting the rail body 3, the floor surface can be flattened and the flattening operation can be simplified.
Since the rail body 3 can be used as a dedicated rail or as a cover when the loader 100 is stored, a special member for the cover is not necessary, and transport and storage of the special member for the cover can be omitted. The labor associated with the cover operation can be reduced.
Since the inside of the rail body 3 serves as a storage space for the loader 100, no special storage space is required on the floor, which contributes to the cost reduction of the installation. When the loader 100 is not in use, the rail body 3 can be removed and stored in the storage space 3d without being carried to another storage location. This saves time and does not require a new loader storage location. .
The gap 6 between the rail outer frame 2 and the rail body 3 can prevent the inconvenience of the operation of the rail body 3 due to the expansion of the floor 7, but by providing the cover portion 4, It is possible to prevent intrusion of garbage.
Since the rail body 3 and the rail outer frame 2 are disposed on the reinforcing rail portion 5 made of a groove-shaped stainless material for the loader 100 to travel to a place where the loader 100 may come into contact with the load body 100, the rail body and the rail outer frame 2 are made of lightweight members. Therefore, the weight of the entire apparatus can be reduced. As shown in FIG. 3, the inner surface of the reinforcing portion 5b of the reinforcing rail portion 5 projects inward (protrudes) to prevent the loader 100 from coming into contact with the side wall 3b of the rail body 3 and damaging it. be able to.

  In the example illustrated in FIG. 1, the rail outer frame 2 includes the flange portion 2 e, but is not necessarily limited to the illustrated example. The entire surface of the side wall 3b of the rail body 3 may be covered with the reinforcing portion 5b of the reinforcing rail portion 5, and is not limited to the one extended to a position substantially in the middle of the height of both side walls 3b as shown in FIG. . It is not always necessary to provide the reinforcing rail portion 5 in the rail body 3. In this case, a material that is durable to the travel of the loader 100 is selected as the material of the rail body. The cover part 4 may be attached not to the rail outer frame 2 side but to the rail body 3 side, and is preferably attached to the outside of the bottom part 3c of the rail body. The configuration of the loader 100 is not limited to the illustrated example. For example, a loader 100 corresponding to the loader shown in the conventional example 2 may be used.

It is sectional drawing which shows the installation state of the rail apparatus for loaders which concerns on this invention, and the state which uses the rail main body as an exclusive rail. It is sectional drawing which shows the installation state of the rail apparatus for loaders which concerns on this invention, and the storage state of the loader. It is a front view which shows the rail apparatus for loaders which concerns on this invention, Comprising: It is a figure which shows the state which uses the rail main body as an exclusive rail. It is a disassembled perspective view which shrinks and shows the principal part of the rail apparatus for loaders which concerns on this invention. FIG. 4 is a plan view of FIG. 3. It is the VI-VI sectional view taken on the line of FIG. It is the VII-VII sectional view taken on the line of FIG. It is a top view which shows the arrangement | positioning state of the rail apparatus for loaders which concerns on this invention. It is a front view which shows the rail apparatus for loaders which concerns on this invention, Comprising: It is a figure which shows the state which uses the rail main body as a cover. FIG. 10 is a plan view of FIG. 9. It is the XI-XI sectional view taken on the line of FIG. It is the XII-XII sectional view taken on the line of FIG. It is sectional drawing which shows the loader of the prior art example 1.

1 Rail device for loader 2 Rail outer frame 2a Opening 2b Side wall 2c Bottom
2c1 receiving part
2c2, 2c3 locking part
2c21, 2c31 engagement projection 2d storage space 2f mounting groove 3 rail body 3a opening 3b side wall 3c bottom
3c1 and 3c2 engaging recess 3d storage space 4 cover portion 5 reinforcing rail portion 5a rail body portion 5b reinforcing portion 6 gap 7 floor 7a floor surface 100 loader

Claims (4)

Each has a rail outer frame and rail body formed in a groove shape, and a cover part .
The rail outer frame is attached to the floor with the upper side open, and a receiving portion is provided at the center in the width direction on the inner surface of the bottom portion, and a locking portion having the same height as the receiving portion is provided on both sides thereof. It protrudes over the entire length, and a locking projection is provided on the upper surface of each locking part,
The rail body, as well are formed by the side walls being located on opposite sides of the bottom portion and the bottom portion, a housing space of the loader whose interior can lift up and down, the bottom on the inner surface in the longitudinal direction A loader can travel along, and groove-like engagement recesses are provided on both sides of the outer surface of the bottom,
The rail body is housed in the rail outer frame and can be detached outward from the opening of the rail outer frame, and the bottom of the rail body can cover the opening at the end of the opening. The
The cover portion is made of an elastically deformable member, and is attached to both side edges of the opening end of the rail outer frame in a horizontal and cantilever state, and the horizontal portion is between the inner side of the rail outer frame and the outer side of the rail body. And the same plane as the floor of the floor, the tip is in contact with the side of the rail body,
In a state where the rail body is housed in the rail outer frame, the bottom surface thereof is placed on the receiving portion and the locking portions, and the engaging recesses are locked to the locking portions. Engaged with the protrusion,
In the state where the rail body covers the opening of the rail outer frame by the bottom portion, the end surfaces of the both side walls are placed on the respective locking portions and the widths of the both side walls by the locking projections. The load rail is characterized in that the displacement of the direction is regulated, the bottom surface of the bottom portion is flush with the floor surface of the floor, and the storage space is a storage space for the loader. apparatus. The engaging portions disposed on both sides of the receiving portion are a pair, and the engaging protrusions of the engaging portions located on the rail outer frame side of the pair of engaging portions are disposed on the receiving portion side. The loader rail device according to claim 1.   The rail main body has a groove-shaped reinforcing rail portion disposed on the inner bottom side thereof, and the reinforcing rail portion is in contact with the inner surface of the bottom portion facing the opening of the rail main body, and the rail main body portion. The loader rail device according to claim 1 or 2, comprising a reinforcing portion that rises from both sides of the rail and contacts the inner surfaces of both side walls of the rail body.   4. The loader rail device according to claim 1, wherein the reinforcing portion projects from the inner surface of both side walls of the rail body toward the storage space.

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