JP4649012B2 - Extruded flooring and truck flooring - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a floor member and a floor plate for trucks formed by extrusion, and more particularly, a floor member that is applied to a floor of a truck bed, a warehouse, etc. And a floor plate for a truck using such a floor member.
[0002]
[Prior art]
Luggage is moved on the floor of the truck bed or on the building floor such as a warehouse or a luggage storage area. The cargo handling operator directly pushes the luggage placed directly on the floor, or loads it on a cart with casters. A cargo handling worker pushes the cart with the load.
[0003]
Among these, when moving a load placed directly on the floor surface by directly pushing it, (b) the load on the floor surface is slippery, and (b) the loading force of the load handling worker is applied to the load sufficiently. It is preferable that the shoe sole of the cargo handling worker is difficult to slip.
[0004]
As for the above (a), it is preferable that the frictional resistance between the load and the floor surface is small. As a means for that purpose, the load state of the load is devised to make it slippery and the load can be easily moved. Has been done. For example, packages are packed with cardboard, placed in a resin container, or placed on a resin pallet.
[0005]
On the other hand, with respect to (b) above, it is preferable that the frictional resistance between the floor surface and the shoe sole of the cargo handling worker is large, and as a means for that purpose, an anti-slip mat is attached to the floor surface. A method for preventing slipping of the shoe, a method for preventing the slipping of the shoe sole in the direction orthogonal to the protrusions by providing protrusions at regular intervals on the floor surface, or as disclosed in JP-A-10-316053 A method of preventing slipping of a shoe sole by a crushing portion formed by providing protrusions at regular intervals on a floor surface and further crushing a part of the protrusions is known.
[0006]
[Problems to be solved by the invention]
However, in the means for (b) above, the method for preventing slipping of the shoe sole by attaching a mat for preventing slipping makes the shoe sole of the cargo handling worker difficult to slip because the frictional resistance increases, but the luggage itself There is also a problem that it becomes difficult to slip. In addition, the method of preventing the shoe sole from slipping by providing the protrusions makes it difficult for the shoe sole to slip in the direction orthogonal to the protrusions, but the shoe sole still slips in the direction along the protrusions (the direction parallel to the protrusions). There is a problem that it is easy. In addition, the method for preventing the slip of the shoe sole by forming a crush portion on a part of the protrusion is difficult to slip because the shoe sole bites into or gets caught in the crush portion, but an unspecified baggage is placed. In truck platforms, warehouses, etc., there is a problem that the luggage is caught by the crushing part due to the form and weight of the luggage and it becomes difficult to slide, so the shape of the crushing part must be selected according to the type of luggage There is annoyance.
[0007]
The present invention has been made to solve the above-described problem, and is applied to a floor of a truck bed or a warehouse, and has a structure that satisfies the contradicting effects that a load is slippery and a loader's sole is hard to slip. And a floor board for trucks using such a floor member.
[0008]
[Means for Solving the Problems]
The invention of claim 1 is a floor member made of aluminum alloy in which a plurality of protrusions parallel to the direction of extrusion molding are formed on the surface of a floor member formed by extrusion, wherein the protrusions are A first protrusion formed at a predetermined height A and a second protrusion formed at a height B lower than the height A of the first protrusion, the second protrusion being It is characterized by having recesses provided continuously or discontinuously.
[0009]
According to this invention, since the first protrusion is formed at a height A higher than the second protrusion provided with the recess, the load is supported by the first protrusion. Therefore, the load placed on the floor member easily slides and moves on the supported first protrusion by the force applied from the cargo handling worker. On the other hand, the second protrusion is formed at a height B lower than that of the first protrusion, and further has a continuous or discontinuous recess, so that when the cargo handling worker strides to move the load, The shoe sole is prevented from slipping by the recess of the second protrusion and the protrusion formed by the recess. Therefore, since the cargo handling worker can transmit the force to the load, the load can be easily moved. The floor member of the present invention satisfies the conflicting effect that the load is easy to slip and the shoe sole of the cargo handling worker is difficult to slide in any of the parallel direction along the protrusion and the direction orthogonal to the protrusion. ing.
[0010]
The invention according to claim 2 is the floor member according to claim 1, wherein the difference between the height A of the first protrusion and the height B of the second protrusion is 0.2 to 2.0 mm. It has a special feature.
[0011]
According to this invention, it is more preferable that the difference between the height A of the first protrusion and the height B of the second protrusion is 0.2 to 2.0 mm, and the load is caught on the second protrusion. Thus, the load can be easily slid and moved while being supported by the first protrusion.
[0012]
The invention according to claim 3 is characterized in that in the floor member according to claim 1 or 2, the recesses are formed at a narrow pitch, and the projections between the recesses are pointed. .
[0013]
According to the present invention, since the recesses are formed at a narrow pitch and the convex portions between the recesses are pointed, the shoe sole of the cargo handling worker who moves the load is bitten or hooked on the convex portions. Can do. Therefore, the shoe sole of the cargo handling worker can be made extremely difficult to slip.
[0014]
According to a fourth aspect of the present invention, in the floor member according to any one of the first to third aspects, the anti-slip region having a predetermined width in which the plurality of adjacent second protrusions are formed, and the anti-slip region. The arrangement of the first protrusions formed on both sides is characterized by being repeated.
[0015]
According to this invention, it is possible to prevent slipping of the shoe sole of the cargo handling operator who moves the load by the anti-slip region having a predetermined width in which the plurality of adjacent second protrusions are formed. The predetermined width at this time is normally set in consideration of the size of the shoe sole. In addition, the first protrusions formed on both sides of the anti-slip region prevent the load from coming into direct contact with the anti-slip region, so that the load is placed without contacting the second protrusion and is easy to move. It has become.
[0016]
A truck floor board according to a fifth aspect is characterized in that the floor member according to any one of the first to fourth aspects is connected.
[0017]
According to the present invention, since the above-mentioned floor members are connected to form a truck floor board, the movement of the load on the loading platform is easy and efficient, and the labor of the load handling worker is greatly reduced to reduce fatigue. Can be made.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described with reference to FIGS.
[0019]
As shown in the perspective view of FIG. 1, the floor member 1 of the present invention is a metal or resin shape formed by extrusion, and is used for truck floor boards, building floor boards for warehouses or luggage storages, etc. It is used as a constituent member. And the floorboard using this floor member 1 is produced by connecting the several floor member 1 according to the predetermined area of the floorboard. In the present invention, the metal or resin floor member 1 is extruded by using an aluminum alloy or a metal material having good extrudability as the extrusion material, or a resin material that can be extruded into a shape having an appropriate strength. Can be molded. Among these, it is preferable to use an aluminum alloy as an extrusion material for the floor member 1 constituting the truck floor board from the viewpoints of weight reduction, strength, wear resistance, and productivity.
[0020]
The floor member 1 is formed by forming a plurality of protrusions 2 and 3 parallel to the extrusion direction on the surface. The protrusions 2 and 3 are first protrusions 2,... 2 (hereinafter referred to as “first protrusion 2”) formed at a predetermined height A, and the height of the first protrusion 2. The second protrusions 3,..., 3 (hereinafter referred to as “second protrusion 3”) formed at a height B lower than A (see FIG. 2), and the second protrusions 3 has a recess 21 provided continuously or discontinuously (see FIG. 3).
[0021]
(1) As shown in FIG. 5 and FIG. 6, the first protrusion 2 is exclusively responsible for supporting the load 15, and when the load 15 slides and moves by an external force received from a cargo handling operator or the like. Then, the load 15 acts to slide. The first protrusion 2 is formed with a height A higher than that of the second protrusion 3 provided with the recess 21 (see FIG. 3). As a result, the load 15 can be easily slid on the first protrusion 2.
[0022]
The first protrusions 2 are formed along the direction of extrusion (in parallel with the extrusion direction), but the size and shape are not particularly limited. However, in the actual embodiment, since the load 15 is moved or unloaded on the floor member 1, the height of the first protrusion 2 is increased, and the floor surface 11 has a very uneven shape. Is not preferable. Usually, as shown in FIG. 2, the first protrusion 2 preferably has a broad and substantially trapezoidal cross-sectional shape having a flat portion on the upper side, and its height A is also about several mm, for example, about 1 to 4 mm. Preferably, it is formed with a thickness of about 1 to 2 mm. The first protrusion 2 having such a shape has an advantage that the load can be stably supported, and the load 15 can be easily slid and moved easily. Furthermore, since the height A is not so high, there is an advantage that the load 15 can be moved and unloaded without any trouble. In any case, the height A of the first protrusion 2 is formed higher than the height B of the second protrusion 3 described later.
[0023]
Although the formation position of the 1st protrusion 2 is not specifically limited, As shown to FIG. 1 and FIG. 4 (a)-(e), it is preferable to form in the upper part of the leg part 5 with which the floor member 1 is provided. The reason why the first protrusion 2 is formed in such a part is that the load is exclusively supported by the first protrusion 2, so that the floor member 1 is prevented from being deformed by the load of the load applied to the first protrusion 2. It is. In the case of a relatively light load, it may not be formed in the upper part of the leg 5 as shown in FIG.
[0024]
The arrangement of the first protrusions 2 can be various patterns. Specifically, as shown in FIG. 4A, one first protrusion 2 and another one first protrusion 2 are provided at an arbitrary interval, and a plurality of second protrusions 3 are provided therebetween. Can be provided. Moreover, as shown in FIGS. 4B to 4F, one unit formed by arranging two or three first protrusions 2 is provided at an arbitrary interval, and a plurality of second protrusions are provided between the units. Article 3 can also be provided. The 1st protrusion 2 located in the both sides of the slip prevention area | region 18 mentioned later is provided in the space | interval of about 40-160 mm.
[0025]
(2) As shown in FIGS. 2, 3, and 7, the second projecting strip 3 includes a recess 21 formed when a cargo handling operator or the like pushes and moves the load, and the recess 21. The convex portion 22 formed by the above-mentioned function acts to bite into the shoe sole 16 and prevents the shoe sole 16 from slipping. In the floor member 1 according to the present invention, since the shoe sole 16 of the cargo handling worker is extremely difficult to slide due to the action of the second protrusion 3, the force from the cargo handling operator can be easily transmitted to the load 15. The luggage 15 can be easily slid and moved.
[0026]
Although the size and shape of the second protrusion 3 are not particularly limited, the second protrusion 3 is formed at least at a height B lower than that of the first protrusion 2, and the second protrusion 3 is continuous or discontinuous. It is necessary that the recess 21 is provided. Further, as shown in FIG. 2 and FIGS. 3A and 3B, the second protrusion 3 is a small semicircular cross section having a smaller cross-sectional area than the first protrusion 2, or a substantially isosceles triangular shape. A small convex portion 22 is formed between the recesses by the recesses 21 formed continuously or discontinuously. The second protrusion 3 having such a feature can increase the frictional resistance with the shoe sole of the cargo handling worker and prevent the shoe sole 15 from slipping.
[0027]
The height B of the second protrusion 3 is formed to be lower than the height A of the first protrusion 2 as shown in FIG. Specifically, the difference between the height A of the first protrusion 2 and the height B of the second protrusion 3 is preferably 0.2 to 2.0 mm, and is preferably 0.3 to 1.0 mm. It is more preferable. The height B of the second protrusion 3 is set lower than the height A of the first protrusion 2 when the height is the same, depending on the shape of the load 15 and its weight, This is because the baggage 15 bites into or gets caught in the second protrusion 3 having the convex portion 22 and the baggage 15 becomes difficult to slip and its movement may be hindered. When the difference between the height A and the height B is 0.2 mm or more, such biting and catching are reduced, and the load 15 becomes slippery and the movement becomes easy. On the other hand, if the difference between the height A and the height B exceeds 2.0 mm, the step between the first protrusion 2 and the second protrusion 3 becomes large. In such a case, the rotation of the caster 17 may be hindered and the carriage may not travel easily, or the carriage may be inclined and become unstable.
[0028]
The arrangement of the second protrusions 3 can be various patterns. Specifically, as shown in FIG. 4, two or three units each formed by arranging a plurality (for example, three) of adjacent second protrusions 3 at regular intervals are provided at a predetermined width. The first protrusion 2 can be formed in units of one to three on both sides of the anti-slip region 18. The floor member 1 of the present invention is formed by repeating such an arrangement pattern.
[0029]
The predetermined width of the above-described anti-slip region 18 is set in consideration of the action of the second protrusion 3. That is, the second protrusion 3 is mainly intended to prevent slipping of the shoe sole 16 of the cargo handling worker. Therefore, as shown in an example in FIG. Is set in consideration of the size of the first protrusion 2 and the interval between the first protrusions 2 and is preferably about 30 to 150 mm. Moreover, each 2nd protrusion 3 provided in the slip prevention area | region 18 is provided in the space | interval of about 3-20 mm.
[0030]
(3) The recess-shaped recess 21 is provided continuously or discontinuously in the longitudinal direction of the second protrusion 3. By forming such recesses 21, projections 22 are formed between the recesses. It is prevented that the shoe sole of a cargo handling operator bites into the dent 21 and the convex part 22 formed in the 2nd protrusion 3 and the shoe sole slips.
[0031]
The size and shape of the recess 21 affects the ease of biting into the shoe sole, and is an important factor for adjusting the degree of difficulty of slipping the shoe sole. In particular, as shown in FIG. 3B, for example, if the recesses 21 are formed at a narrower pitch and the protrusions 22 between the recesses are pointed, the shoe sole 16 can be made more difficult to slip. preferable. The pitch of the recesses 21 is preferably about 0.5 to 5 mm, and more preferably 1 to 3 mm. By setting the pitch in such a range, the sharp convex portion 22 having a width of about 0.1 to 2 mm can be formed.
[0032]
The recess 21 can be formed by plastic working or cutting. When the floor member 1 is made of metal, it is preferably formed by plastic working or cutting, and when it is made of resin, it is preferably formed by cutting.
[0033]
As the plastic working, a rolling process is adopted, and it is preferably formed by crushing by, for example, a knurling process. Such knurling is particularly preferably applied from the viewpoint of productivity because the recesses 21 can be continuously provided and the pitch of the recesses 21 can be easily changed by exchanging a processing jig.
[0034]
As a specific example of the knurling process, a roller jig for processing from the floor surface side of the floor member 1 is brought into contact with the second protrusion 3, and a pressing roller jig that is not used for processing from the leg side of the floor member 1 is used. The dent 21 can be formed in the second protrusion 3 by abutting the tool and performing knurling with the second protrusion 3 sandwiched between the roller jigs. Further, a knurling process in which a flat rolling die having an uneven shape is used and the die is pressed against the second protrusion 3 from above by a press machine to form the recess 21 can be preferably applied. According to these knurling processes, the shape of the recess 21 can be easily adjusted by the stress pressing the roller jig or the rolling mold, the convex shape of the processed part of the roller jig or the rolling mold used for the machining, or the like. can do.
[0035]
In particular, when the dent 21 is formed by plastic working, if the dent 21 is formed with a large amount of deformation, the floor member 1 itself may be deformed by stress during the plastic working. Therefore, it is preferable to reduce the deformation amount, but even if the deformation amount is small, it is possible to make the shoe sole difficult to slip by forming the recesses 21 with a narrow pitch.
[0036]
As the cutting process, for example, a plurality of rotary blades can be cut in contact with the second protrusion 3 from a right angle direction, and the plurality of recesses 21 can be formed by sequentially repeating the cutting operation.
[0037]
(4) Floor member As described above, in the floor member 1 in which the first protrusion 2 and the second protrusion 3 having different actions are formed, the parallel direction and the protrusion along the protrusions 2 and 3 are provided. Regardless of the direction orthogonal to the strips 2 and 3, the load 15 is slidable and the shoe sole 16 of the cargo handling worker is difficult to slide. The floor member 1 of the present invention is preferably applied to a floor board for trucks, a floor board for buildings such as a warehouse or a luggage storage area, and other uses where the effects of the floor member 1 of the present invention are applied and its effects can be exhibited. Can do.
[0038]
As shown in FIGS. 1, 5, and 8, the floor member 1 can be provided with leg portions 5, connecting portions 6 and 7, attachment portions 8, and the like as necessary. For example, when the floor member 1 is used as a floor for a truck, as shown in FIG. 8, the floor surface 11 on which the first protrusions 2 and the second protrusions 3 are formed, the legs 5, and the male connection A floor member 1 having a portion 6, a female connecting portion 7, and an attachment portion 8 is used. At this time, a plurality of such floor members 1 are prepared, and the mounting portions 8 of the floor members 1 are attached to the joists 12 with the fixing bolts 9 to fix the floor member 1. The floor portions 1 for trucks are configured by fitting the connecting portions 6 and 7 of the other floor members 1 to the fixed floor member 1 and further fixing them. An end member 10 and a floor frame member 13 are further attached to both ends of the connected floor member 1. In addition, also when using the floor member 1 as a building floor board, it can comprise similarly.
[0039]
When the floor member 1 is used for a truck floor board or a building floor board, the floor member 1 made of a plurality of extruded shapes is connected and installed in accordance with the area.
[0040]
【The invention's effect】
As described above, according to the floor member of the present invention, the load can be easily slid by the first protrusion, and the shoe sole of the cargo handling worker can be prevented from slipping by the second protrusion. The floor member of the present invention satisfies the conflicting effect that the load is easy to slide and the shoe sole of the cargo handling worker is difficult to slide, regardless of the direction parallel to the protrusion and the direction orthogonal to the protrusion. ing.
[0041]
In addition, the shapes of the recesses 21 and the protrusions 22 provided on the second protrusions need only take into consideration that the shoe sole is difficult to slip. Therefore, when the uneven processing is performed by the plastic processing method, the deformation of the material accompanying the plastic processing It becomes easy to select a shape for reducing the size.
[0042]
Further, according to the truck floor board of the present invention, the movement of the load on the loading platform becomes easy and efficient, and the labor of the cargo handling worker can be greatly reduced to reduce fatigue.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an example of a floor member of the present invention.
FIG. 2 is an enlarged perspective view showing an example of a form of a first protrusion and a second protrusion.
FIG. 3 is an enlarged perspective view showing an example of a shape of a dent and a convex portion of a second protrusion.
FIG. 4 is a cross-sectional view showing an example of a formation pattern of first protrusions and second protrusions.
FIG. 5 is a cross-sectional view showing a state in which a load is supported by a first protrusion on a floor member.
6 is a partial enlarged cross-sectional view of FIG. 5 showing the positional relationship between the first protrusion and the second protrusion.
FIG. 7 is an explanatory diagram showing a state in which the shoe sole is prevented from slipping by the second protrusion of the floor member.
FIG. 8 is a configuration diagram showing a mode in which floor members are connected as a floor board for a truck.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor member 2 1st protrusion 3 2nd protrusion 5 Leg part 6 Male type | mold connection part 7 Female type | mold connection part 8 Attachment part 9 Fixing bolt 10 End part member 11 Floor surface 12 joist 13 Floor frame member 15 Luggage 16 Shoes Sole 17 Caster 18 Anti-slip region 19 Virtual position of luggage 20 Virtual position of shoe sole 21 Recess 22 Protrusion

Claims (5)

A floor member made of aluminum alloy in which a plurality of protrusions parallel to the direction of extrusion molding are formed on the surface of the floor member formed by extrusion molding,
The protrusion is composed of a first protrusion formed at a predetermined height A and a second protrusion formed at a height B lower than the height A of the first protrusion,
The floor member by extrusion molding, wherein the second protrusion has a recess provided continuously or discontinuously.   The floor member by extrusion molding according to claim 1, wherein a difference between a height A of the first protrusion and a height B of the second protrusion is 0.2 to 2.0 mm.   The floor member by extrusion molding according to claim 1 or 2, wherein the recesses are formed at a narrow pitch, and the protrusions between the recesses are pointed.   An arrangement comprising an anti-slip region having a predetermined width in which a plurality of adjacent second protrusions are formed and the first protrusions formed on both sides of the anti-slip region is repeated. The floor member by extrusion molding according to any one of claims 1 to 5.   A truck floor board comprising the floor members according to any one of claims 1 to 4 connected to each other.

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